Ferroglobe (GSM) 20-F1 May 232022 FY Annual report (foreign)Financial data

Company Profile

Document and Entity Information

Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2022 shares
Document and Entity Information [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Period End Date	Dec. 31, 2022
Entity File Number	001-37668
Entity Registrant Name	Ferroglobe PLC
Entity Incorporation, State or Country Code	X0
Entity Address, Address Line One	13 Chesterfield Street
Entity Address, City or Town	London
Entity Address, Country	GB
Entity Address, Postal Zip Code	W1J 5JN
Title of 12(b) Security	Ordinary Shares (nominal value of $0.01)
Trading Symbol	GSM
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Document Accounting Standard	International Financial Reporting Standards
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	187,433,543
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0001639877
ICFR Auditor Attestation Flag	true
Amendment Flag	false
Auditor Name	Deloitte, S.L.
Auditor Firm ID	1223
Auditor Location	Madrid, Spain
Business Contact
Document and Entity Information [Line Items]
Entity Address, Address Line One	13 Chesterfield Street
Entity Address, City or Town	London
Entity Address, Country	GB
Entity Address, Postal Zip Code	W1J 5JN
City Area Code	750
Local Phone Number	130‑8322
Contact Personnel Name	Beatriz García-Cos

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Non-current assets
Goodwill	$ 29,702	$ 29,702
Other intangible assets	111,797	100,642
Property, plant and equipment	486,247	554,914
Other non-current financial assets	14,186	4,091
Deferred tax assets	7,136	7,010
Non-current receivables from related parties	1,600	1,699
Other non-current assets	18,218	18,734
Non-current restricted cash and cash equivalents	2,133	2,272
Total non-current assets	671,019	719,064
Current assets
Inventories	500,080	289,797
Trade and other receivables	425,474	381,073
Current receivables from related parties	2,675	2,841
Current income tax assets	6,104	7,660
Other current financial assets	3	104
Other current assets	30,608	8,408
Current restricted cash and cash equivalents	2,875
Assets and disposal groups classified as held for sale	1,067
Cash and cash equivalents	317,935	114,391
Total current assets	1,286,821	804,274
Total assets	1,957,840	1,523,338
Equity
Share capital	1,962	1,962
Reserves	439,674	544,433
Translation differences	(242,623)	(227,318)
Valuation adjustments	10,735	5,525
Result attributable to the Parent	440,314	(110,624)
Non-controlling interests	106,751	106,053
Total equity	756,813	320,031
Non-current liabilities
Deferred income	3,842	895
Provisions	47,670	60,958
Bank borrowings	15,774	3,670
Lease liabilities	12,942	9,968
Debt instruments	330,655	404,938
Other financial liabilities	38,279	4,549
Other obligations	37,502	38,082
Other non-current liabilities	12	1,476
Deferred tax liabilities	35,854	25,145
Total non-current liabilities	522,530	549,681
Current liabilities
Provisions	145,507	137,625
Bank borrowings	62,059	95,297
Lease liabilities	8,929	8,390
Debt instruments	12,787	35,359
Other financial liabilities	60,382	62,464
Payables to related parties	1,790	9,545
Trade and other payables	219,666	206,000
Current income tax liabilities	53,234	1,775
Other obligations	9,580	22,843
Other current liabilities	104,563	74,328
Total current liabilities	678,497	653,626
Total equity and liabilities	$ 1,957,840	$ 1,523,338

CONSOLIDATED INCOME STATEMENTS

CONSOLIDATED INCOME STATEMENTS - USD ($) $ in Thousands	12 Months Ended
CONSOLIDATED INCOME STATEMENTS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Profit (loss) [abstract]
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Raw materials and energy consumption for production	(1,285,086)	(1,184,896)	(835,486)
Other operating income	147,356	110,085	33,627
Staff costs	(314,810)	(280,917)	(214,782)
Other operating expense	(346,252)	(296,809)	(132,059)
Depreciation and amortization charges, operating allowances and write-downs	(81,559)	(97,328)	(108,189)
Impairment (loss) gain	(56,999)	137	(73,344)
Net gain due to changes in the value of assets	349	758	158
(Loss) gain on disposal of non-current assets	(459)	1,386	1,292
Other (loss) gain	91	62	(1)
Operating (loss) profit	660,547	31,386	(184,350)
Finance income	2,274	253	177
Finance costs	(61,015)	(149,189)	(66,968)
Financial derivative gain			3,168
Exchange differences	(9,995)	(2,386)	25,553
(Loss) Profit before tax	591,811	(119,936)	(222,420)
Income tax benefit (expense)	(147,983)	4,562	(21,939)
(Loss) Profit for the year from continuing operations	443,828	(115,374)	(244,359)
(Loss) Profit for the year from discontinued operations			(5,399)
Total (Loss) Profit for the year	443,828	(115,374)	(249,758)
Attributable to the Parent	440,314	(110,624)	(246,339)
Attributable to non-controlling interests	3,514	(4,750)	(3,419)
Earnings per share
Attributable to the Parent	$ 440,314	$ (110,624)	$ (246,339)
Weighted average basic shares outstanding	187,815,672	176,508,144	169,269,281
Weighted average dilutive shares outstanding	189,625,195	176,508,144	169,269,281
Basic profit (loss) earnings per ordinary share (US$)	$ 2.34	$ (0.63)	$ (1.46)
Diluted profit (loss) earnings per ordinary share (US$)	$ 2.32	$ (0.63)	$ (1.46)
(Loss) Profit for the year from continuing operations attributable to parent	$ 440,314	$ (110,624)	$ (240,940)
Basic profit (loss) earnings per ordinary share - continuing operations (US$)	$ 2.34	$ (0.63)	$ (1.42)
Diluted profit (loss) earnings per ordinary share - continuing operations (US$)	$ 2.32	$ (0.63)	$ (1.42)
(Loss) Profit for the year from discontinued operations			$ (5,399)
Basic (loss) earnings per ordinary share - discontinued operations (US$)			$ (0.03)
Diluted (loss) earnings per ordinary share - discontinued operations (US$)			$ (0.03)

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Profit (loss)	$ 443,828	$ (115,374)	$ (249,758)
Items that will not be reclassified subsequently to income or loss:
Defined benefit obligation	9,779	2,566	3,630
Tax effect	(2,082)	139	(45)
Total income and expense that will not be reclassified subsequently to income or loss	7,697	2,705	3,585
Items that may be reclassified subsequently to income or loss:
Arising from cash flow hedges			(3,752)
Translation differences	(17,178)	(20,393)	3,239
Total income and expense that may be reclassified subsequently to income or loss	(17,178)	(20,393)	(513)
Items that have been reclassified to income or loss in the period:
Arising from cash flow hedges		(922)	8,091
Total transfers to income or loss		(922)	8,091
Other comprehensive income (loss) for the year, net of income tax	(9,481)	(18,610)	11,163
Total comprehensive (loss) for the year	434,347	(133,984)	(238,595)
Attributable to the Parent	430,219	(131,413)	(235,022)
Attributable to non-controlling interests	$ 4,128	$ (2,571)	$ (3,573)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Share Capital	Reserves	Share Premium	Translation Difference	Valuation Adjustments	Result for the Year	Noncontrolling interests	Total
Shares outstanding at beginning of period at Dec. 31, 2020	170,864
Equity at beginning of period at Dec. 31, 2020	$ 1,784	$ 696,774		$ (206,759)	$ 5,755	$ (246,339)	$ 114,504	$ 365,719
Comprehensive (loss) income				(20,559)	(230)	(110,624)	(2,571)	(133,984)
Issue of share capital	178		$ 86,220					86,398
Share-based compensation		3,627						3,627
Distribution of profit (loss)		(246,339)				246,339
Dividends paid							(5,880)	(5,880)
Other changes		4,151						4,151
Equity at end of period at Dec. 31, 2021	$ 1,962	458,213	86,220	(227,318)	5,525	(110,624)	106,053	320,031
Shares outstanding at end of period at Dec. 31, 2021	188,883
Shares issued (in shares)	18,019
Comprehensive (loss) income				(15,305)	5,210	440,314	4,128	434,347
Share-based compensation		5,825						5,825
Distribution of profit (loss)		(110,624)				110,624
Dividends paid							(3,430)	(3,430)
Other changes		40						40
Equity at end of period at Dec. 31, 2022	$ 1,962	$ 353,454	$ 86,220	$ (242,623)	$ 10,735	$ 440,314	$ 106,751	$ 756,813
Shares outstanding at end of period at Dec. 31, 2022	188,883

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Profit (Loss) for the year	$ 443,828	$ (115,374)	$ (249,758)
Adjustments to reconcile net profit (loss) to net cash provided by operating activities:
Income tax expense (benefit)	147,983	(4,562)	21,939
Depreciation and amortization charges, operating allowances and write-downs	81,559	97,328	108,189
Finance income (loss)	(2,274)	(253)	(177)
Finance costs	61,015	149,189	66,968
Financial derivative (gain) loss			(3,168)
Exchange differences	9,995	2,386	(25,553)
Impairment (gain) loss	56,999	(137)	73,344
Loss (gain) on disposal of discontinued operations			5,399
Loss (gain) due to changes in the value of assets	(349)	(758)	(158)
Loss (gain) on disposal of non-current assets	459	(1,386)	(1,292)
Share-based compensation	5,836	3,627	2,017
Other loss (gain)	(91)	(62)
Changes in operating assets and liabilities:
(Increase) decrease in inventories	(220,823)	(60,296)	114,585
(Increase) decrease in trade and other receivables	(72,558)	(161,434)	71,034
Increase (decrease) in trade and other payables	30,640	64,382	(55,405)
Other changes in operating assets and liabilities	(56,677)	29,803	14,473
Income tax paid	(80,524)	(3,794)	11,831
Net cash provided by (used in) operating activities	405,018	(1,341)	154,268
Cash flows from investing activities:
Interest and finance income received	1,520	207	630
Payments due to investments:
Other intangible assets	(1,147)		(2,654)
Property, plant and equipment	(52,153)	(27,597)	(30,257)
Other financial assets	6
Disposals:
Other non-current assets		1,919	341
Other		1,623
Net cash provided (used) by investing activities	(51,774)	(23,848)	(31,940)
Cash flows from financing activities:
Payment for debt and equity issuance costs	(853)	(43,755)	(4,540)
Proceeds from equity issuance		40,000
Proceeds from debt issuance		60,000
Repayment of debt instruments	(84,823)
Increase (decrease) in bank borrowings:
Borrowings	898,586	659,083	177,593
Payments	(919,932)	(671,467)	(235,296)
Amounts paid due to leases	(11,590)	(11,232)	(10,315)
Proceeds from other financing liabilities	38,298
Other amounts (paid) due to financing activities	678		(2,863)
Interest paid	(60,822)	(22,177)	(37,912)
Net cash provided (used) by financing activities	(140,458)	10,452	(113,333)
Total net cash flows for the year	212,786	(14,737)	8,995
Beginning balance of cash and cash equivalents	116,663	131,557	123,175
Exchange differences on cash and cash equivalents in foreign currencies	(6,506)	(157)	(613)
Ending balance of cash and cash equivalents	$ 322,943	$ 116,663	$ 131,557

General Information

General Information	12 Months Ended
General Information	Dec. 31, 2022
General Information [Abstract]
General information	1. General information Ferroglobe PLC and subsidiaries (the “Company” or “Ferroglobe”) is among the world’s largest producers of silicon metal and silicon-based alloys, important ingredients in a variety of industrial and consumer products. The Company’s customers include major silicone chemical, aluminum and steel manufacturers, auto companies and their suppliers, ductile iron foundries, manufacturers of photovoltaic solar cells and computer chips, and concrete producers. Additionally, the Company was operating hydroelectric plants (hereinafter “energy business”) in Spain until August 30, 2019 and is still operating hydroelectric plants in France. Ferroglobe PLC (the “Parent Company” or “the Parent”) is a public limited company that was incorporated in the United Kingdom on February 5, 2015 (formerly named ‘Velonewco Limited’). The Parent’s registered office is 5 Fleet Place, London EC4M 7RD (United Kingdom). On December 23, 2015, Ferroglobe PLC consummated the acquisition (“Business Combination”) of Globe Specialty Metals, Inc. and subsidiaries (“GSM” or “Globe”) and Grupo FerroAtlántica, S.A.U. (“FerroAtlántica”).

Organization and Subsidiaries

Organization and Subsidiaries	12 Months Ended
Organization and Subsidiaries	Dec. 31, 2022
Disclosure Of Organization and Subsidiaries [Abstract]
Organization and Subsidiaries	2. Organization and Subsidiaries Ferroglobe has a diversified production base consisting of production facilities across North America, Europe, South America, South Africa and Asia. The subsidiaries of Ferroglobe PLC as of December 31, 2022 and 2021, classified by reporting segments, were as follows: Percentage of Ownership Direct Total Reporting Segment Registered Alabama Sand and Gravel, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Sales Corporation, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Core Metals Group Holdings, LLC — 100.0 North America – Silicon Alloys Delaware - USA Core Metals Group, LLC — 100.0 North America – Silicon Alloys Delaware - USA ECPI, Inc. — 100.0 North America – Silicon Alloys Delaware - USA Gatliff Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe BG, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Financial LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Holdings, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metallurgical Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metals Enterprises, Inc. — 100.0 North America – Silicon Alloys Delaware - USA GSM Alloys I, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Alloys II, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Enterprises Holdings, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Enterprises, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Sales, Inc. — 100.0 North America – Silicon Metal Delaware - USA Laurel Ford Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA LF Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Metallurgical Process Materials, LLC — 100.0 North America – Silicon Alloys Delaware - USA Norchem, Inc. — 100.0 North America – Silicon Metal and Alloys Florida - USA QSIP Canada ULC — 100.0 North America – Silicon Metal Canada Quebec Silicon General Partner — 51.0 North America – Silicon Metal Canada Quebec Silicon Limited Partnership — 51.0 North America – Silicon Metal Canada Tennessee Alloys Company, LLC — 100.0 North America – Silicon Alloys Delaware - USA West Virginia Alloys, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA WVA Manufacturing, LLC — 51.0 North America – Silicon Metal Delaware - USA Cuarzos Industriales, S.A.U. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Ferroatlántica del Cinca, S.L. — 99.9 Europe – Manganese Madrid - Spain Ferroglobe Mangan Norge A.S. — 100.0 Europe – Manganese Norway Ferroglobe Manganese France S.A.S. — 100.0 Europe – Manganese France FerroPem, S.A.S. — 100.0 Europe – Silicon Metal and Alloys France Grupo FerroAtlántica, S.A.U. — 100.0 Europe – Manganese and Silicon Metal Madrid - Spain Grupo FerroAtlántica de Servicios, S.L.U. — 100.0 Other segments Madrid - Spain Kintuck (France) S.A.S. — 100.0 Europe – Manganese France Kintuck A.S. — 100.0 Europe – Manganese Norway Rocas, Arcillas y Minerales, S.A. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Rebone Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Smelters (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Technology (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys South Africa Thaba Chueu Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Cuarzos Industriales de Venezuela, S.A. — 100.0 Other segments Venezuela Emix, S.A.S. — 100.0 Other segments France Ferroatlántica de México, S.A. de C.V. — 100.0 Other segments Nueva León - Mexico Ferroatlántica de Venezuela (FerroVen), S.A. — 99.9 Other segments Venezuela Ferroatlántica Deutschland, GmbH — 100.0 Other segments Germany Ferroatlántica do Brasil Mineraçao Ltda. — 70.0 Other segments Brazil Ferroglobe Holding Company, LTD 100 100.0 Other segments United Kingdom Ferroglobe Finance Company, PLC — 100.0 Other segments United Kingdom FerroManganese Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferroquartz Holdings, Ltd. (Hong Kong) — 100.0 Other segments Hong Kong FerroQuartz Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferrosolar OPCO Group S.L. — 100.0 Other segments Spain Ferrosolar R&D S.L. — 50.0 Other segments Spain FerroTambao, S.A.R.L. — 90.0 Other segments Burkina Faso Globe Metales S.R.L. — 100.0 Other segments Argentina Globe Specialty Metals, Inc. — 100.0 Other segments Delaware - USA GSM Financial, Inc. — 100.0 Other segments Delaware - USA GSM Netherlands, B.V. — 100.0 Other segments Netherlands Hidroelectricité de Saint Beron, S.A.S. — 100.0 Other segments France Mangshi FerroAtlántica Mining Industry Service Company Limited — 100.0 Other segments Mangshi, Dehong -Yunnan -China Ningxia Yonvey Coal Industrial Co., Ltd. — 98.0 Other segments China Photosil Industries, S.A.S. — 100.0 Other segments France Ferroglobe Innovation, S.L.U — 100.0 Other segments Spain Solsil, Inc. — 92.4 Other segments Delaware - USA Ultracore Energy S.A. — 100.0 Other segments Argentina 2021 Subsidiaries Percentage of Ownership Direct Total Reporting Segment Registered Alabama Sand and Gravel, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Sales Corporation, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Core Metals Group Holdings, LLC — 100.0 North America – Silicon Alloys Delaware - USA Core Metals Group, LLC — 100.0 North America – Silicon Alloys Delaware - USA ECPI, Inc. — 100.0 North America – Silicon Alloys Delaware - USA Gatliff Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe BG, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Financial LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Holdings, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metallurgical Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metals Enterprises, Inc. — 100.0 North America – Silicon Alloys Delaware - USA GSM Alloys I, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Alloys II, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Enterprises Holdings, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Enterprises, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Sales, Inc. — 100.0 North America – Silicon Metal Delaware - USA Laurel Ford Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA LF Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Metallurgical Process Materials, LLC — 100.0 North America – Silicon Alloys Delaware - USA Norchem, Inc. — 100.0 North America – Silicon Metal and Alloys Florida - USA QSIP Canada ULC — 100.0 North America – Silicon Metal Canada Quebec Silicon General Partner — 51.0 North America – Silicon Metal Canada Quebec Silicon Limited Partnership — 51.0 North America – Silicon Metal Canada Tennessee Alloys Company, LLC — 100.0 North America – Silicon Alloys Delaware - USA West Virginia Alloys, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA WVA Manufacturing, LLC — 51.0 North America – Silicon Metal Delaware - USA Cuarzos Industriales, S.A.U. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Ferroatlántica del Cinca, S.L. — 99.9 Europe – Manganese Madrid - Spain Ferroatlántica Participaciones, S.L.U. — 100.0 Other segments Madrid - Spain Ferroglobe Mangan Norge A.S. — 100.0 Europe – Manganese Norway Ferroglobe Manganese France S.A.S. — 100.0 Europe – Manganese France FerroPem, S.A.S. — 100.0 Europe – Silicon Metal and Alloys France Grupo FerroAtlántica, S.A.U. — 100.0 Europe – Manganese and Silicon Metal Madrid - Spain Grupo FerroAtlántica de Servicios, S.L.U. — 100.0 Other segments Madrid - Spain Kintuck (France) S.A.S. — 100.0 Europe – Manganese France Kintuck A.S. — 100.0 Europe – Manganese Norway Rocas, Arcillas y Minerales, S.A. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Rebone Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Smelters (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Technology (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys South Africa Thaba Chueu Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Cuarzos Indus. de Venezuela (Cuarzoven), S.A. — 100.0 Other segments Venezuela Emix, S.A.S. — 100.0 Other segments France Ferroatlántica de México, S.A. de C.V. — 100.0 Other segments Nueva León - Mexico Ferroatlántica de Venezuela (FerroVen), S.A. — 99.9 Other segments Venezuela Ferroatlántica Deutschland, GmbH — 100.0 Other segments Germany Ferroatlántica do Brasil Mineraçao Ltda. — 70.0 Other segments Brazil Ferroglobe Holding Company, LTD 100 100.0 Other segments United Kingdom Ferroglobe Finance Company, PLC — 100.0 Other segments United Kingdom FerroManganese Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferroquartz Holdings, Ltd. (Hong Kong) — 100.0 Other segments Hong Kong FerroQuartz Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferrosolar OPCO Group S.L. — 100.0 Other segments Spain Ferrosolar R&D S.L. — 50.0 Other segments Spain FerroTambao, S.A.R.L. — 90.0 Other segments Burkina Faso Globe Argentina Holdco, LLC — 100.0 Other segments Delaware - USA Globe Metales S.R.L. — 100.0 Other segments Argentina Globe Specialty Metals, Inc. 100 100.0 Other segments Delaware - USA GSM Financial, Inc. — 100.0 Other segments Delaware - USA GSM Netherlands, B.V. — 100.0 Other segments Netherlands Hidroelectricité de Saint Beron, S.A.S. — 100.0 Other segments France Mangshi FerroAtlántica Mining Industry Service Company Limited — 100.0 Other segments Mangshi, Dehong -Yunnan -China Ningxia Yonvey Coal Industrial Co., Ltd. — 98.0 Other segments China Photosil Industries, S.A.S. — 100.0 Other segments France Ferroglobe Innovation, S.L.U — 100.0 Other segments Spain Solsil, Inc. — 92.4 Other segments Delaware - USA Ultracore Energy S.A. — 100.0 Other segments Argentina Subsidiaries are all companies over which Ferroglobe has control. Control is achieved when the Company: ● has power over the investee; ● is exposed, or has rights, to variable returns from its involvement with the investee; and ● has the ability to use its power over the investee to affect the amount of the investor’s returns. The Company has power over the investee when the voting rights are sufficient to give it the practical ability to direct the relevant activities of the investee unilaterally. The Company considers all relevant facts and circumstances in assessing whether or not the Company’s voting rights in an investee are sufficient to give it power, including: ● the total voting rights held by the Company relative to the size and dispersion of holdings of the other vote holders; ● potential voting rights held by the Company, other vote holders or other parties; ● rights arising from other contractual arrangements; and ● any additional facts and circumstances that indicate that the Company has, or does not have, the current ability to direct the relevant activities at the time these decisions need to be made, including voting patterns at previous shareholders’ meetings. Consolidation of a subsidiary begins when the Company obtains control over the subsidiary and ceases when the Company loses control of the subsidiary. The Company uses the acquisition method to account for the acquisition of subsidiaries. According to this method, the consideration transferred for the acquisition of a subsidiary corresponds to the fair value of the assets transferred, the liabilities incurred and the equity interests issued by the Company. The consideration transferred also includes the fair value of any asset or liability resulting from a contingent consideration arrangement. Any contingent consideration transferred by the Company is recognized at fair value at the date of acquisition. Subsequent changes in the fair value of the contingent consideration classified as an asset or a liability are recognized in accordance with IFRS 9 in the income statement. The costs related to the acquisition are recognized as expenses in the years incurred. The identifiable assets acquired and the liabilities and contingent liabilities assumed in a business combination are initially recognized at their fair value at the date of acquisition. Profit or loss for the period and each component of other comprehensive (loss) income are attributed to the owners of the Company and to the non-controlling interests. The Company attributes total comprehensive (loss) income to the owners of the Company and to the non-controlling interests even if the profit or loss of the non-controlling interests gives rise to a balance receivable. All assets and liabilities, equity, income, expenses and cash flows relating to transactions between subsidiaries are eliminated in full in consolidation.

Basis of presentation and basis

Basis of presentation and basis of consolidation	12 Months Ended
Basis of presentation and basis of consolidation	Dec. 31, 2022
Disclosure Of Basis Of Presentation And Basis Of Consolidation [Abstract]
Basis of presentation and basis of consolidation	3. Basis of presentation and basis of consolidation 3.1 Basis of presentation These consolidated financial statements have been issued in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board and interpretations issued by the International Financial Reporting Interpretations Committee (collectively “IFRS”). The consolidated financial statements have been authorized for issuance on May 1, 2023. All accounting policies and measurement bases with effect on the consolidated financial statements were applied in their preparation. The consolidated financial statements were prepared on a historical cost basis, with the exceptions disclosed in the notes to the consolidated financial statements, where applicable, and in those situations where IFRS requires that financial assets and financial liabilities are valued at fair value. For the year ended December 31, 2022, the Company reported a net profit of $462,414 To support its assessment of the going concern basis of accounting, management has prepared a financial model which considers the revenues, expenditures, cash flows, net tax payments and capital expenditures for a period of at least one year from the date of approval of these financial statements. The financial projections to determine these future cash flows are modelled considering the principal variables that determine the historic flows at a Group level including prices, volumes, costs, capital expenditures and net working capital. These projections are based on the 2023 annual budget and management’s five-year financial model. Key assumptions include estimates on sale prices based on the order book and indexes. It has to be considered that sale prices are the variable to which the Company´s cash flows are more sensitive to. Sensitivities have been run, including stressed scenarios with reductions on the base case sale prices for the coming months, to reflect the key risks and uncertainties impacting the cash flow projections. Ferroglobe’s primary short-term liquidity needs are to fund its capital expenditure commitments, fund specific initiatives underlying the strategic plan, service its existing debt, fund working capital and comply with other contractual obligations. Ferroglobe’s long-term liquidity needs primarily relate to debt servicing and repayment. Ferroglobe’s core objective with respect to capital management is to maintain a balanced and sustainable capital structure through the economic cycles, while keeping the cost of capital at competitive levels. We believe our working capital is sufficient for our present requirements, and we anticipate generating sufficient cash from operations to satisfy our short and long-term liquidity needs. As a result of all the analysis performed, the Company has concluded that there is no substantial doubt about its ability to continue as a going concern. 3.2 International financial reporting standards Application of new accounting standards New and amended standards and interpretations adopted by the Company No new standards effective on January 1, 2022 have a material impact on the consolidated financial statements. The Company has not early adopted any other standard, interpretation or amendment that has been issued but is not yet effective. New and amended standards and interpretations not yet adopted Certain new accounting standards and interpretations have been published that are not mandatory for the reporting period ended December 31, 2022 and have not been early adopted by the Company. Standards, interpretations and amendments published by the IASB that will be effective for periods beginning on or after January 1, 2023: ● IFRS 17 Insurance Contracts (issued on 18 May 2017); including Amendments to IFRS 17 (issued on June 2020 and effective from annual period beginning on January 1, 2023) ● Amendments to IAS 1 Presentation of Financial Statements: Classification of Liabilities as Current or Non-current and Classification of Liabilities as Current or Non-current - Deferral of Effective Date (issued on January 2020 and July 2020 respectively and effective from annual period beginning on January 1, 2023) ● Amendments to IAS 1 Presentation of Financial Statements and IFRS Practice Statement 2: Disclosure of Accounting policies (issued on February 2021 and effective from annual period beginning on January 1, 2023) ● Amendments to IAS 8 Accounting policies, Changes in Accounting Estimates and Errors: Definition of Accounting Estimates (issued on February 2021 and effective from annual period beginning on January 1, 2023) ● Amendments to IAS 12 Income Taxes: Deferred Tax related to Assets and Liabilities arising from a Single Transaction (issued on May 2021 and effective from annual period beginning on January 1, 2023) ● Amendments to initial application of IFRS 17 and IFRS 9: Comparative information (issued on December 2021 and effective from annual period beginning on January 1, 2023) ● Amendments to IFRS 16: Lease Liability in a sale and Leaseback (issued on September 2022 and effective from annual period beginning on January 1, 2024) ● Amendments to IAS 1: Non-current liabilities with Covenants (issued on October 2022 and effective from annual period beginning on January 1, 2024) The Company is continuously assessing the impact of the application of these standards or interpretations that are not yet effective, and it is not expected that the application of these standards will have a material impact on the entity in the current or future reporting periods and on foreseeable future transactions. 3.3 Currency Until September 30, 2021, the Parent’s functional currency was the Euro. Due to an occurrence of events and conditions that reduce the number of transactions in euros, and in accordance with International Financial Reporting Standards, management conducted a review of the functional currency of Ferroglobe PLC and they concluded that there has been a change in its functional currency from Euro to U.S. Dollars, effective since October 1, 2021. Ferroglobe PLC is the parent company of Ferroglobe Group and its main assets and liabilities relate to intercompany transactions. Due to the new group structure, PLC has signed an agreement in which they agreed to convert all intercompany receivables and payables outstanding into US Dollars. Additionally, PLC financing instruments (debt and equity instruments) are U.S. Dollars denominated. The change in functional currency was implemented prospectively starting October 1, 2021. To give effect to this change, balances of the parent company as of October, 1, 2021 have been translated to USD in accordance with IAS 21 “The effect of changes in foreign exchange rates”. The functional currencies of subsidiaries are determined by the primary economic environment in which each subsidiary operates. The reporting currency of the Company is U.S. Dollars and as such the accompanying results and financial position have been translated pursuant to the provisions indicated in IAS 21. All differences arising from the aforementioned translation are recognized in equity under “Translation differences.” Upon the disposal of a foreign operation, the translation differences relating to that operation deferred as a separate component of consolidated equity are recognized in the consolidated income statement when the gain or loss on disposal is recognized. 3.4 Responsibility for the information and use of estimates The information in these consolidated financial statements is the responsibility of Ferroglobe’s Management. Certain assumptions and estimates were made by management in the preparation of these consolidated financial statements, including: ● The impairment analysis on goodwill, see Note 7; ● the useful life of property, plant and equipment and intangible assets, see Note 4.3; ● the impairment analysis on property, plant and equipment and valuations, determined by value in use or by fair value less cost of disposal methods, see Note 9; ● the fair value of financial instruments, see Note 29; ● the assumptions used in the actuarial calculation of pension liabilities, see Note 15; ● the discount rate used to calculate the present value of certain collection rights and payment obligations, see Note 15; ● provisions for contingencies and environmental liabilities, see Note 25; ● the net realizable value of inventory, see Note 11 ; ● income taxes, including the recoverability of the deferred tax asset; see Note 23 ; The Company based its estimates and judgments on historical experience, known or expected trends and other factors that are believed to be reasonable under the circumstances. Actual results may differ materially from these estimates. Changes in accounting estimates are applied in accordance with IAS 8. At the date of preparation of these consolidated financial statements no events had taken place that might constitute a significant source of uncertainty regarding the accounting effect that such events might have in future reporting periods. 3.5 Critical accounting judgements and key sources of estimation uncertainty In the application of the Company's accounting policies, the directors are required to make judgements, estimates and assumptions about the carrying amounts of assets and liabilities that are not readily apparent from other sources. The estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates. The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods. Critical judgements in applying the Company's accounting policies The following are the critical judgements, apart from those involving estimations (which are dealt with separately below), that the directors have made in the process of applying the Company's accounting policies and that have the most significant effect on the amounts recognized in financial statements. Fair value measurement of financial instruments Certain of the Company's financial instruments are classified as Level 3 as they include unobservable inputs. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either: in the principal market for the asset or liability; or in the absence of a principal market, in the most advantageous market for the asset or liability. The fair value of an asset or a liability is measured using the assumptions that market participants would use when pricing the asset or liability, assuming that market participants act in their economic best interest. For those assets and liabilities measured at fair value at the balance sheet date, further information on fair value measurement is provided in Note 29. Going concern As required by the accounting rules, the Company performs an analysis to assess the Company’s ability to continue as a going concern. In this analysis, management makes certain estimates. To assess the liquidity risk the Company has defined a financial model which considers the revenues, expenditures, cash flows, net tax payments, capital expenditures and net working capital requirements. The financial projections to determine future cash flows are modelled considering the principal variables that determine the historic flows at a Group level including prices, volumes, costs, capital expenditures and net working capital. These projections are based on the 2023 annual budget and management’s five-year financial model. Impairment of long-lived assets The Company’s evaluation of goodwill and PP&E for impairment involves the comparison of the carrying amounts of assets with their recoverable amount. The determination of the recoverable amount requires significant judgement in developing and applying underlying assumptions concerning future market and conditions (operating costs and working capital requirements) for the periods projected, as well as the determination of an appropriate discount rate and terminal value. The key assumptions used for estimating cash flow projections in the Group’s impairment testing are those relating to discount rate, revenue, operating cost and operating margin. For certain assets, recoverable amount has been determined at fair value less cost of disposal, which determination is subject to significant judgement. Inventories Cost of inventories is determined by the average cost method. Inventories are valued at the lower of cost or Net Realizable Value. Circumstances may arise (e.g., reductions in market pricing, obsolete, slow moving or defective inventory) that require the carrying amount of our inventory to be written down to net realizable value. We estimate market and net realizable value based on current and future expected selling prices, as well as expected costs to complete, including utilization of parts and supplies in our manufacturing process. We believe that these estimates are reasonable; however, future market price decreases caused by changing economic conditions, customer demand, or other factors could result in future inventory write-downs that could be material. Key sources of estimation uncertainty The key assumptions concerning the future, and other key sources of estimating uncertainty at the reporting period that may have a significant risk of causing a material adjustment to the carrying amount of assets and liabilities within the next financial year, are discussed below. Impairment of assets The Company reviews the carrying value of assets on a periodic basis, and whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Such circumstances or events could include: a pattern of losses involving the asset; a decline in the market value for the asset; and an adverse change in the business or market in which the asset is involved. Determining whether an impairment has occurred typically requires various estimates and assumptions, including determining which cash flows are directly related to the potentially impaired asset, the useful life over which cash flows will occur, their amount and the asset’s residual value, if any. Estimates of future cash flows and the selection of appropriate discount rates relating to particular assets or groups of assets involve the exercise of a significant amount of judgement. The key assumptions for the value in use calculation are those regarding the discount rate, growth rate, and cash flows. Cash flow projections are based on the Company’s five year internal forecast. Estimates of selling prices and direct costs are based on past experience, expectations of future changes in the market and historic trends. Sensitivities are disclosed in Note 7 of the Consolidated Financial Statements. 3.6 Basis of consolidation The financial statements of the subsidiaries are fully consolidated with those of the Parent. Accordingly, intercompany balances and transactions, including income, expenses and dividends, are eliminated in the consolidated financial statements. Gains and losses resulting from intercompany transactions are also eliminated. Non-controlling interests are presented in “Equity – Non-controlling interests” in the consolidated statement of financial position, separately from the consolidated equity attributable to the Parent. The share of non-controlling interests in the profit or loss for the year is presented under “Loss/Profit attributable to non-controlling interests” in the consolidated income statement. When necessary, adjustments are made to the financial statements of subsidiaries to align the accounting policies used to the accounting policies of the Company.

Accounting policies

Accounting policies	12 Months Ended
Accounting policies	Dec. 31, 2022
Disclosure of initial application of standards or interpretations [abstract]
Accounting policies	4. Accounting policies The principal IFRS accounting policies applied in preparing these consolidated financial statements were in effect at the date of preparation are described below. 4.1 Goodwill Goodwill arising on consolidation represents the excess of the cost of acquisition over the Company’s interest in the fair value of the identifiable assets and liabilities of a subsidiary at the date of acquisition. On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal. 4.2 Other intangible assets Other intangible assets are assets without physical substance which can be individually identified either because they are separable or because they arise as a result of a legal or contractual right or of a legal transaction or were developed by the consolidated companies. Only intangible assets whose value can be measured reliably and from which the Company expects to obtain future economic benefits are recognized in the consolidated statement of financial position. Intangible assets are recognized initially at acquisition cost. The aforementioned cost is amortized systematically over each asset’s useful life. At each reporting date, these assets are measured at acquisition cost less accumulated amortization and any accumulated impairment losses, if any. The Company reviews amortization periods and amortization methods for finite-lived intangible assets at the end of each fiscal year. The Company’s main intangible assets are as follows: Development expenditures Development expenditures are capitalized if they meet the requirements of identifiability, reliability in cost measurement and high probability that the assets created will generate economic benefits. Developmental expenditures are amortized on a straight-line basis over the useful lives of the assets, which are between four Expenditures on research activities are recognized as expenses in the years in which they are incurred. Power supply agreements Power supply agreements at rates below market acquired in business combinations are amortized on a straight-line basis over the term in which the agreement is effective. Rights of use Rights of use granted are amortized on a straight-line basis over the term in which the right of use was granted from the date it is considered that use commenced. Rights of use are generally amortized over a period ranging from 10 Computer software Computer software includes the costs incurred in acquiring or developing computer software, including the related installation. Computer software is amortized on a straight-line basis over two Computer system maintenance costs are recognized as expenses in the years in which they are incurred. Other intangible assets Other intangible assets include: ● Supply agreements which are amortized in accordance with their estimated useful lives (see Note 8). ● CO 2 emissions allowances (“rights held emit greenhouse gasses”) which are not amortized, but rather are expensed when used (see Note 4.22). 4.3 Property, plant and equipment Cost Property, plant and equipment for our own use are initially recognized at acquisition or production cost and are subsequently measured at acquisition or production cost less accumulated depreciation and any accumulated impairment losses. When the construction and start-up of non-current assets require a substantial period of time, the borrowing costs incurred over that period are capitalized. In 2022, 2021 and 2020 no material borrowing cost were capitalized. The costs of expansion, modernization or improvements leading to increased productivity, capacity or efficiency or to a lengthening of the useful lives of the assets are capitalized. Repair, upkeep and maintenance expenses are recognized in the consolidated income statement for the year in which they are incurred. Mineral reserves are recorded at fair value at the date of acquisition. Depletion of mineral reserves is computed using the units-of-production method utilizing only proven and probable reserves (as adjusted for recoverability factors) in the depletion base. Property, plant and equipment in the course of construction are transferred to property, plant and equipment in use at the end of the related development period. Depreciation The Company depreciates property, plant and equipment using the straight-line method at annual rates based on the following years of estimated useful life: Years of Estimated Useful Life Properties for own use 25-50 Plant and machinery 8-20 Tools 12.5-15 Furniture and fixtures 10-15 Computer hardware 4-8 Transport equipment 10-15 Land included within property, plant and equipment is considered to be an asset with an indefinite useful life and, as such, is not depreciated, but rather it is tested for impairment annually. The Company reviews residual value, useful lives, and the depreciation method for property, plant and equipment annually. Environment The costs arising from the activities aimed at protecting and improving the environment are accounted for as an expense for the year in which they are incurred. When they represent additions to property, plant and equipment aimed at minimizing the environmental impact and protecting and enhancing the environment, they are capitalized to non-current assets. 4.4 Impairment of property, plant and equipment, intangible assets, right-of-use assets and goodwill In order to ascertain whether its assets have become impaired, the Company compares their carrying amount with their recoverable amount; goodwill - the CGUs are tested for impairment annually, and whenever there is an indication of impairment and property, plant and equipment. Where the asset itself does not generate cash flows that are independent from other assets, the Company estimates the recoverable amount of the cash-generating unit to which the asset belongs. Recoverable amount is the higher of: ● Fair value less costs of disposal: the price that would be agreed upon by two independent parties, less estimated costs to sell, and ● Value in use: the present value of the future cash flows that are expected to be derived from continuing use of the asset and from its ultimate disposal at the end of its useful life, discounted at a rate which reflects the time value of money and the risks specific to the business to which the asset belongs. If the recoverable amount of an asset (or cash-generating unit) is less than its carrying amount, the carrying amount of the asset is reduced to its recoverable amount, and an impairment loss is recognized as an expense under “Impairment losses” in the consolidated income statement. Where an impairment loss subsequently reverses (not permitted in the case of goodwill), the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset in prior years. A reversal of an impairment loss is recognized as “Impairment (loss)/gain” in the consolidated income statement. The basis for depreciation is the carrying amount of the assets, deemed to be the acquisition cost less any accumulated impairment losses. 4.5 Financial instruments Financial assets and financial liabilities are recognized in the Company’s statement of financial position when the Company becomes a party to the contractual provisions of the instrument. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition or issue of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through profit or loss) are added to or deducted from the fair value of the financial assets or financial liabilities, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through profit or loss are recognized immediately in profit or loss. Financial assets The Company classifies its financial assets into the following categories: those to be measured subsequently at fair value (either through other comprehensive income or through profit or loss) and those to be measured at amortized cost. The classification depends on the entity’s business model for managing the financial assets and the contractual terms of the cash flows. Financial assets measured at amortized cost Financial assets are classified as measured at amortized cost when they are held in a business model whose objective is to collect contractual cash flows and the contractual terms of the financial asset give rise on specific dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Such assets are carried at amortized cost using the effective interest method if the time value of money is significant. Gains and losses are recognized in profit or loss when the assets are derecognized or impaired and when interest is recognized using the effective interest method. This category of financial assets includes trade receivables, receivables from related parties and cash and cash equivalents. Financial assets measured at fair value through other comprehensive income Debt instruments are classified as measured at fair value through other comprehensive income when they are held in a business model whose objective is achieved by both collecting contractual cash flows and selling the financial assets, and the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. All movements in the fair value of these financial assets are taken through other comprehensive income, except for the recognition of impairment gains or losses, interest income calculated using the effective interest method and foreign exchange gains and losses. When the financial asset is derecognized, the cumulative fair value gain or loss previously recognized in other comprehensive income is reclassified to the income statement. Equity instruments are classified as measured at fair value through other comprehensive income if, on initial recognition, the Company makes an irrevocable election to designate the instrument as at fair value through other comprehensive income. The election is made on an instrument-by-instrument basis and is not permitted if the equity investment is held for trading. Fair value gains or losses on revaluation of such equity investments are recognized in other comprehensive income and accumulated in the valuation adjustments reserve. When the equity investment is derecognized, there is no reclassification of fair value gains or losses previously recognized in other comprehensive income to the income statement. Dividends are recognized in the income statement when the right to receive payment is established. Financial assets measured at fair value through profit or loss. Financial assets are classified as measured at fair value through profit or loss when the asset does not meet the criteria to be measured at amortized cost or at fair value through other comprehensive income. Such assets are carried on the balance sheet at fair value with gains or losses recognized in the income statement. Derecognition of financial assets The Company derecognizes a financial asset when: - the rights to receive cash flows from the asset have expired; or - the Company has transferred its rights to receive cash flows from the asset or has assumed an obligation to pay the received cash flows in full without material delay to a third party under a ‘pass-through’ arrangement; and either (a) the Company has transferred substantially all the risks and rewards of the asset, or (b) the Company has neither transferred nor retained substantially all the risks and rewards of the asset, but has transferred control of the asset. On derecognition of a financial asset in its entirety, the difference between the asset’s carrying amount and the sum of the consideration received and receivable is recognized in profit or loss. If the Company retains substantially all of the risks and rewards of ownership of a transferred financial asset, the Company continues to recognize the financial asset and also recognizes a collateralized borrowing for the proceeds received. Impairment of financial assets The expected credit loss model is applied for recognition and measurement of impairments in financial assets measured at amortized cost and debt instruments held at fair value through other comprehensive income. The loss allowance for the financial asset is measured at an amount equal to the 12-month expected credit losses. If the credit risk on the financial asset has increased significantly since initial recognition, the loss allowance for the financial asset is measured at an amount equal to the lifetime expected credit losses. Changes in loss allowances are recognized in profit and loss. For trade receivables, a simplified impairment approach is applied recognizing expected lifetime losses from initial recognition. For this purpose, the Company has established a provision matrix that is based on its historical credit loss experience, adjusted for forward-looking factors specific to the debtors and the economic environment. The Company writes off a financial asset when there is information indicating that the debtor is in severe financial difficulty and there is no realistic prospect of recovery, e.g. when the debtor has been placed under liquidation or has entered into bankruptcy proceedings, or in the case of trade receivables, when the amounts are over two years past due, whichever occurs sooner. Financial assets written off may still be subject to enforcement activities under the Company’s recovery procedures, considering legal advice where appropriate. Any recoveries made are recognized in profit or loss. Financial liabilities The subsequent measurement of financial liabilities depends on their classification, as described below: Financial liabilities measured at fair value through profit or loss Financial liabilities that meet the definition of held for trading are classified as measured at fair value through profit or loss. Such liabilities are carried on the balance sheet at fair value with gains or losses recognized in the income statement. This category includes contingent consideration and derivatives, other than those designated as hedging instruments in an effective hedge. Financial liabilities measured at amortized cost This is the category most relevant to the Company and comprises all other financial liabilities, including bank borrowings, debt instruments, financial loans from government agencies, payables to related parties and trade and other payables. After initial recognition, other financial liabilities are subsequently measured at amortized cost using the effective interest method. Amortized cost is calculated by considering any issue costs and any discount or premium on settlement. Derecognition of financial liabilities The Company derecognizes financial liabilities when, and only when, the Company’s obligations are discharged, cancelled or have expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable is recognized in profit or loss. When the Company exchanges with the existing lender one debt instrument into another one with substantially different terms, such exchange is accounted for as an extinguishment of the original financial liability and the recognition of a new financial liability. Similarly, the Company accounts for substantial modification of terms of an existing liability or part of it as an extinguishment of the original financial liability and the recognition of a new liability. It is assumed that the terms are substantially different if the discounted present value of the cash flows under the new terms, including any fees paid net of any fees received and discounted using the original effective rate is at least 10 per cent different from the discounted present value of the remaining cash flows of the original financial liability. If the modification is not substantial, the difference between the carrying amount of the liability before the modification and the present value of the cash flows after modification are recognized in profit or loss as a modification gain or loss. 4.6 Derivative financial instruments and hedging activities In order to mitigate the economic effects of exchange rate and interest rate fluctuations to which it is exposed as a result of its business activities, the Company uses derivative financial instruments, such as cross currency swaps and interest rate swaps. The Company’s derivative financial instruments are set out in Note 19 to these consolidated financial statements and the Company’s financial risk management policies are set out in Note 28. Derivatives are initially recognized at fair value at the date a derivative contract is entered into and are subsequently remeasured to their fair value at each balance sheet date. The resulting gain or loss is recognized in profit or loss immediately unless the derivative is designated and effective as a hedging instrument, in which event the timing of the recognition of profit or loss depends on the nature of the hedge relationship. The gain or loss recognized in respect of derivatives that are not designated and effective as a hedging instrument is recognized in the consolidated income statement in the line item financial derivative gain (loss). A derivative with a positive fair value is recognized as a financial asset within the line item other financial assets whereas a derivative with a negative fair value is recognized as a financial liability within the line item other financial liabilities. A derivative is presented as a non-current asset or non-current liability if the remaining maturity of the instrument is more than 12 months and it is not expected to be realized or settled within 12 months. Hedge accounting The Company designates certain derivatives as cash flow hedges. For further details, see Note At the inception of the hedge relationship, the Company documents the relationship between the hedging instrument and the hedged item, along with its risk management objectives and its strategy for undertaking the hedge transaction. Furthermore, at the inception of the hedge and on an ongoing basis, the Company documents whether the hedging instrument is effective in offsetting changes in fair values or cash flows of the hedged item attributable to the hedged risk. The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income. The gain or loss relating to any ineffective portion is recognized immediately in profit or loss and is included in the financial derivative gain (loss) line item. Amounts previously recognized in other comprehensive income and accumulated in equity in the valuation adjustments reserve are reclassified to profit or loss in the periods when the hedged item is recognized in profit or loss, in the same line of the income statement as the recognized hedged item. Hedge accounting is discontinued when the Company revokes the hedging relationship, the hedging instrument expires or is sold, terminated, or exercised, or no longer qualifies for hedge accounting. Any gain or loss recognized in other comprehensive income at that time is accumulated in equity and is recognized when the forecast transaction is ultimately recognized in profit or loss. When a forecast transaction is no longer expected to occur, the gain or loss accumulated in equity is recognized immediately in profit or loss. 4.7 Fair value measurement Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either: in the principal market for the asset or liability; or in the absence of a principal market, in the most advantageous market for the asset or liability. The fair value of an asset or a liability is measured using the assumptions that market participants would use when pricing the asset or liability, assuming that market participants act in their economic best interest. The Company uses valuation techniques that are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. All assets and liabilities for which fair value is measured or disclosed in the financial statements are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole: ● Level 1 — Quoted (unadjusted) market prices in active markets for identical assets or liabilities. ● Level 2 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is directly or indirectly observable. ● Level 3 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is unobservable. For those assets and liabilities measured at fair value at the balance sheet date, further information on fair value measurement is provided in Note 29. 4.8 Inventories Inventories comprise assets (goods) which: ● Are held for sale in the ordinary course of business (finished goods); or ● Are in the process of production for such sale (work in progress); or ● Will be consumed in the production process or in the rendering of services (raw materials and spare parts). Inventories are stated at the lower of acquisition or production cost and net realizable value. The cost of each inventory item is generally calculated as follows: ● Raw materials, spare parts and other consumables and replacement parts: the lower of weighted average acquisition cost and net realizable value. ● Work in progress, finished goods and semi-finished goods: the lower of production cost (which includes the cost of materials, labor costs, direct and indirect manufacturing expenses) or net realizable value in the market. Obsolete, defective or slow-moving inventories have been reduced to net realizable value. Net realizable value is the estimated selling price less all the estimated costs of selling and distribution. The amount of any write-down of inventories (as a result of damage, obsolescence or decrease in the selling price) to their net realizable value and all losses of inventories are recognized as expenses in the year in which the write-down or loss occurs. Any subsequent reversals are recognized as income in the year in which they arise. The consumption of inventories is recognized as an expense in “Raw Materials and energy consumption for production” in the consolidated income statement in the period in which the revenue from their sale is recognized. 4.9 Raw materials and energy consumption for production Raw materials and energy consumption for production comprise raw materials, energy, other direct costs, inventory write-downs and changes in inventory. 4.10 Cash and cash equivalents The Company classifies under “Cash and cash equivalents” any liquid financial assets, such as for example cash on hand and at banks, deposits and liquid investments, that can be converted into known amounts of cash within three months and are subject to an insignificant risk of changes in value. 4.11 Restricted cash and cash equivalents The Company classifies under “restricted cash and cash equivalents” any liquid financial assets, which meet the definition of cash and cash equivalents but the use or withdrawal is restricted by financial agreements. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements and/or contracts entered into with others; however, time deposits and short-term certificates of deposit are not included in legally restricted deposits. In cases where compensating balance arrangements exist but are not agreements which legally restrict the use of cash amounts shown on the balance sheet, those arrangements and the amount involved are disclosed in the notes. Compensating balances that are maintained under an agreement to assure future credit availability are also disclosed in the notes. As discussed in Note 31, certain of the Company´s credit agreements restrict the transfer of assets in the form of loans or dividends to other affiliates. The amount of cash and cash equivalents in subsidiaries subject to such restrictions amounted to $253,085 as of December 31, 2022, and is not presented as Restricted cash and equivalents in the balance sheet because it can be withdrawn or used except for transfers to affiliates. 4.12 Provisions and contingencies When preparing the consolidated financial statements, the Parent’s directors made a distinction between: ● Provisions: present obligations, either legal, contractual, constructive or assumed by the Company, arising from past events, the settlement of which is expected to give rise to an outflow of economic benefits the amount or timing of which are uncertain; and ● Contingent liabilities: possible obligations that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more future events not wholly within the control of the Company, or present obligations arising from past events the amount of which cannot be estimated reliably or whose settlement is not likely to give rise to an outflow of economic benefits. ● Contingent assets: possible assets that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within the control of the entity. The consolidated financial statements include all the material provisions with respect to which it is considered that it is probable that the obligation will have to be settled. Contingent liabilities are not recognized in the consolidated financial statements, but rather are disclosed, as required by IAS 37 (see Note Provisions are classified as current or non-current based on the estimated period of time in which the obligations covered by them will have to be met. They are recognized when the liability or obligation giving rise to the indemnity or payment arises, to the extent that its amount can be estimated reliably. “Provisions” includes the provisions for pension and similar obligations assumed; provisions for contingencies and charges, such as for example those of an environmental nature and those arising from litigation in progress or from outstanding indemnity payments or obligations, and collateral and other similar guarantees provided by the Company; and provisions for medium- and long- term employee incentives. Contingent assets are not recognized, but are disclosed where an inflow of economic benefits is probable. If it has become virtually certain that an inflow of economic benefits will arise, the asset and the related income are recognized in the financial statements in the period in which the change occurs. Defined contribution plans Certain employees have defined contribution plans which conform to the Spanish Pension Plans and Funds Law. The main features of these plans are as follows: ● They are mixed plans covering the benefits for retirement, disability and death of the participants. ● The sponsor undertakes to make monthly contributions of certain percentages of current employees’ salaries to external pension funds. The annual cost of these plans is recognized under Staff costs in the consolidated income statement. Defined benefit plans IAS 19, Employee Benefits requires defined benefit plans to be accounted for: ● Using actuarial techniques to make a reliable estimate of the amount of benefits that employees have earned in return for their service in the current and prior periods. ● Discounting those benefits in order to determine the present value of the obligation. ● Determining the fair value of any plan assets. ● Determining the total amount of actuarial gains and losses and the amount of those actuarial gains and losses that must be recognized. The amount recognized as a benefit liability arising from a defined benefit plan is the total net sum of: ● The present value of the obligations. ● Minus the fair value of plan assets (if any) out of which the obligations are to be settled directly. The Company recognizes provisions for these benefits as the related rights vest and on the basis of actuarial studies. These amounts are recognized under “Provisions” in the consolidated statement of financial position, on the basis of their expected due payment dates. Environmental provisions Provisions for environmental obligations are estimated by analyzing each case separately and observing the relevant legal provisions. The best possible estimate is made on the basis of the information available and a provision is recognized provided that the aforementioned information suggests that it is probable that the loss or expense will arise and it can be estimated in a sufficiently reliable manner. The balance of provisions and disclosures disclosed in Notes 15 and 24 reflects management’s best estimation of the potential exposure as of the date of preparation of these financial statements. 4.13 Leases The Company assesses if a contract is or contains a lease at inception of the contract. A contract is or contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use asset and a lease liability at the commencement date. The lease liability is initially measured at the present value of the minimum future lease payments, discounted using the interest rate implicit in the lease, or, if not readily determinable, the incremental borrowing rate. Lease payments include fixed payments, variable payments that depend on an index or rate, as well as any extension or purchase options, if the Company is reasonably certain to exercise these options. The lease liability is subsequently measured at amortized cost using the effective interest method and remeasured with a corresponding adjustment to the related right-of-use asset when there is a change in future lease payments. The right-of-use asset comprises, at inception, the initial lease liability, any initial direct costs and, when applicable, the obligations to refurbish the asset, less any incentives granted by the lessors. The right-of-use asset is subsequently depreciated, on a straight-line basis, over the lease term or, if the lease transfers the ownership of the underlying asset to the Company at the end of the lease term or, if the cost of the right-of-use asset reflects that the lessee will exercise a purchase option, over the estimated useful life of the underlying asset. Right-of-use assets are also subject to testing for impairment if there is an indicator for impairment. Variable lease payments not included in the measurement of the lease liabilities are expensed to the consolidated income statement in the period in which the events or conditions which trigger those payments occur. In the statement of financial position, right-of-use assets and lease liabilities are classified, respectively, as part of property, plant and equipment and current and non-current lease liabilities. 4.14 Current assets and liabilities In general, assets and liabilities are classified as current or non-current based on the Company’s operating cycle. However, in view of the diverse nature of the activities carried on by the Company, in which the duration of the operating cycle differs from one activity to the next, in general assets and liabilities expected to be settled or fall due within twelve months from the end of the reporting period are classified as current items and those which fall due or will be settled within more than twelve months are classified as non-current items. 4.15 Income taxes Income tax expense represents the sum of current tax and deferred tax. Income tax is recognized in the income statement except to the extent that it relates to items recognized in other comprehensive income or directly in equity, in which case the related tax is recognized in o

Business Combinations

Business Combinations	12 Months Ended
Business Combinations	Dec. 31, 2022
Disclosure of detailed information about business combination [abstract]
Business Combinations	5. Business Combinations Business combinations are accounted for using the acquisition method. The identifiable assets acquired and liabilities assumed are recognized at their fair values at the acquisition date. Acquisition costs are recognized in profit or loss as incurred. Goodwill is initially measured as the excess of the aggregate of the consideration transferred, the amount recognized for any non-controlling interest and the acquisition-date fair values of any previously held interest in the acquiree over the fair value of the identifiable assets acquired and liabilities assumed at the acquisition date. If, after reassessment, the net of the acquisition date amounts of the identifiable assets acquired and liabilities assumed exceeds the sum of the consideration transferred, the excess is recognized immediately in profit or loss as a bargain purchase gain. When the consideration transferred by the Company in a business combination includes an asset or liability resulting from a contingent consideration arrangement, the contingent consideration is measured at its acquisition-date fair value and included as part of the consideration transferred in a business combination. Contingent consideration that is classified as equity is not remeasured at subsequent reporting dates and its subsequent settlement is accounted for within equity. Contingent consideration that is classified as an asset or a liability is remeasured at subsequent reporting dates at fair value with the corresponding gain or loss being recognized in profit or loss. Changes in fair value of the contingent consideration that qualify as measurement period adjustments are adjusted retrospectively, with corresponding adjustments against goodwill. Measurement period adjustments are adjustments that arise from additional information obtained during the ‘measurement period’ (which cannot exceed one year from the acquisition date) about facts and circumstances that existed at the acquisition date. Ferroglobe has not recorded any business combination in 2022 and 2021.

Segment reporting

Segment reporting	12 Months Ended
Segment reporting	Dec. 31, 2022
Disclosure of operating segments [abstract]
Segment reporting	6. Segment reporting Operating segments are based upon the Company’s management reporting structure. During 2022, the Company has revised its operating segments to reflect the way its Chief Operating Decision Maker (“CODM”) is currently managing the business. Our revised organizational structure includes the following ten operating segments: ● Canada – Silicon Metals ● Canada – Silicon Alloys ● US – Silicon Metals ● US - Silicon Alloys ● Europe – Manganese Alloys ● Europe – Silicon Metals ● Europe - Silicon Alloys ● South Africa – Silicon Metals ● South Africa – Silicon Alloys; and ● Other segments The operating segments described above are those components whose operating results are regularly reviewed by the entity’s Chief Operating Decision Maker to make decisions about resources to be allocated to the segment and assess its performance, and for which discrete financial information is available. This is due to the integrated operations within each region and product family and the ability to reallocate production based on the individual capacity of each plant. Additionally, economic factors that may impact our results of operations, such as currency fluctuations and energy costs, are also assessed at a region and product level. The Company’s North America- Silicon Metal and North America – Silicon Alloys reportable segments are the result of the aggregation of the operating segments of the United States and Canada Silicon Metals and the operating segments of the United States and Canada Silicon Alloys. These operating segments have been aggregated as they have similar long-term economic characteristics and there is similarity of competitive and operating risks and the political environment in the United States and Canada. The Europe-Silicon Metals, the Europe-Silicon Alloys, the Europe -Manganese, the South Africa – Silicon Metals and South Africa – Silicon Alloys reportable segments are equal to each related Operating segment. All other segments that do not meet the quantitative threshold for separate reporting have been grouped as “Other segments”, mainly includes holding entities in United Kingdom and subsidiary OPCO in Spain. The consolidated income statements as of December 31, 2022, 2021 and 2020, by reportable segment, are as follows: 2022 North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations () Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 671,290 339,414 701,140 536,753 259,419 17,337 122,262 81,560 (131,259) 2,597,916 Raw materials and energy consumption for production (305,545) (68,490) (541,034) (241,936) (139,687) (9,270) (65,373) (46,759) 133,008 (1,285,086) Other operating income 6,464 122 42,882 76,255 23,622 156 66 59,840 (62,051) 147,356 Staff costs (61,378) (41,923) (28,996) (81,175) (50,467) (1,736) (11,652) (37,483) — (314,810) Other operating expense (33,708) (37,859) (111,741) (99,513) (33,265) (2,649) (13,193) (74,626) 60,302 (346,252) Depreciation and amortization charges, operating allowances and write-downs (33,708) (15,135) (13,005) (4,605) (8,086) (748) (5,278) (994) — (81,559) Impairment (loss) gain — — (33,222) — (26,028) 5,357 2,408 (5,514) — (56,999) Net gain due to changes in the value of assets — — — — — — — 349 — 349 (Loss) gain on disposal of non-current assets (522) (126) (189) 230 82 — — 66 — (459) Other (loss) — — 11 — — — — 80 — 91 Operating Profit 242,893 176,003 15,846 186,009 25,590 8,447 29,240 (23,481) — 660,547 () The amounts correspond to transactions between segments that are eliminated in the consolidation process. 2021() North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations () Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 370,109 154,699 476,287 437,533 227,804 12,604 104,591 43,568 (48,287) 1,778,908 Raw materials and energy consumption for production (265,653) (57,663) (326,257) (303,811) (170,073) (8,240) (68,377) (33,445) 48,623 (1,184,896) Other operating income 5,089 296 34,142 48,828 16,924 278 485 49,901 (45,858) 110,085 Staff costs (51,163) (31,300) (33,696) (77,608) (42,679) (1,542) (11,726) (31,203) — (280,917) Other operating expense (22,222) (20,848) (105,290) (105,712) (23,043) (1,904) (11,352) (51,960) 45,522 (296,809) Depreciation and amortization charges, operating allowances and write-downs (40,489) (15,281) (18,634) (7,330) (9,522) (546) (4,535) (991) — (97,328) Impairment (loss) gain — — (376) 14 (455) 288 2,396 (1,730) — 137 Net gain due to changes in the value of assets — — — — — — — 758 — 758 (Loss) gain on disposal of non-current assets (347) 741 — 733 296 — — (37) — 1,386 Other (loss) — — — — — — — — — — Operating (loss) profit (4,676) 30,644 26,176 (7,353) (749) 938 11,482 (25,076) — 31,386 () Our operating segments have been revised in 2022 to reflect the way its chief operating decision maker (“CODM”) is currently managing and viewing the business. Accordingly, the results of 2021 and 2020 have been restated to report results according to the operating segments revised in 2022. (*) The amounts correspond to transactions between segments that are eliminated in the consolidation process. 2020() North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations (*) Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 289,485 135,792 240,142 321,632 146,096 17,631 62,941 25,334 (94,619) 1,144,434 Raw materials and energy consumption for production (205,260) (75,597) (204,063) (255,798) (113,332) (12,267) (43,796) (19,518) 94,145 (835,486) Other operating income 2,804 113 9,199 19,971 5,078 127 3 24,587 (28,255) 33,627 Staff costs (48,219) (25,769) (28,337) (52,236) (32,064) (2,497) (8,516) (17,144) — (214,782) Other operating expense (18,990) (15,325) (33,884) (35,415) (16,397) (3,515) (10,583) (26,679) 28,729 (132,059) Depreciation and amortization charges, operating allowances and write-downs (48,691) (12,973) (19,086) (8,900) (10,352) (1,563) (5,578) (1,046) — (108,189) Impairment (loss) gain (26,861) (8,824) 305 — (17,942) (1,899) (6,777) (11,346) — (73,344) Net gain due to changes in the value of assets — — — — — — — 158 — 158 (Loss) gain on disposal of non-current assets (641) (227) 1,154 682 319 — — 5 — 1,292 Other (loss) gain — — 4 — — — — (5) — (1) Operating (loss) (56,373) (2,810) (34,566) (10,064) (38,594) (3,983) (12,306) (25,654) — (184,350) () Our operating segments have been revised in 2022 to reflect the way its chief operating decision maker (“CODM”) is currently managing and viewing the business. Accordingly, the results of 2021 and 2020 have been restated to report results according to the operating segments revised in 2022. (**) The amounts correspond to transactions between segments that are eliminated in the consolidation process. Other disclosures Sales by product line Sales by product line are as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Silicon metal 1,116,193 637,695 463,217 Manganese-based alloys 525,483 469,138 267,469 Ferrosilicon 561,539 337,833 176,447 Other silicon-based alloys 192,409 161,750 126,817 Silica fume 32,290 32,409 25,888 Other 170,002 140,083 84,596 Total 2,597,916 1,778,908 1,144,434 Information about major customers Total sales of $1,322,724 thousand, $870,039 thousand, and $580,570 thousand were attributable to the Company’s top ten customers in 2022, 2021, and 2020 respectively. During 2022, 2021, and, 2020 sales corresponding to Dow Silicones Corporation represented 16.8%, 12.2% and 13.2%, respectively of the Company’s sales. Sales to Dow Silicones Corporation are included partially in the North America – Silicon Metal segment and partially in the Europe - Silicon Metal segment. Non current assets by geographical area The non-current assets by geographical area are as follows: Year ended December 31, 2022 2021 US$´000 US$´000 United States of America 231,565 230,356 Europe Spain 109,759 146,405 France 133,684 138,842 Other EU Countries 55,835 71,612 Total non-current assets in Europe 299,278 356,859 Rest of the World 133,040 124,839 Total 663,883 712,054

Goodwill

Goodwill	12 Months Ended
Goodwill	Dec. 31, 2022
Disclosure of reconciliation of changes in goodwill [abstract]
Goodwill	7. Goodwill Changes in the carrying amount of goodwill during the years ended December 31, are as follows: January 1, Impairment Exchange December 31, Impairment Exchange December 31, 2021 (Note 26.5) differences 2021 (Note 26.5) differences 2022 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 U.S. Silicon Metal cash generating unit 17,230 — — 17,230 — — 17,230 U.S. Silicon Based Alloys cash generating unit 12,472 — — 12,472 — — 12,472 Total 29,702 — — 29,702 — — 29,702 On December 23, 2015, Ferroglobe PLC consummated the acquisition of 100% of the equity interests of Globe Specialty Metals, Inc. (GSM) and subsidiaries and FerroAtlántica. This Business Combination was accounted for using the acquisition method of accounting for business combinations under IFRS 3 Business Combinations, with FerroAtlántica treated as the accounting acquirer and GSM as the acquiree. The excess of the cost of acquisition over the Company’s interest in the fair value of the identifiable assets and liabilities assumed at the date of acquisition was recorded as goodwill. During the years ended December 31, 2022 and December 31, 2021, in connection with our annual goodwill impairment test, the Company did not recognize an impairment charge. Ferroglobe operates in a cyclical market, and silicon and silicon-based alloy index pricing and foreign import pressure into the U.S. markets impact the future projected cash flows used in our impairment analysis. Recoverable value was estimated based on discounted cash flows. Estimates under the Company’s discounted income based approach involve numerous variables including anticipated sales price and volumes, cost structure, discount rates and long term growth, and therefore could impact fair values in the future. As of December 31, 2022, and 2021 the remaining goodwill for the U.S Silicon Metal and U.S Silicon Alloys cash-generating units is $29,702 thousand. Key assumptions used in the determination of recoverable value In determining the asset recoverability through value in use, management makes estimates, judgments and assumptions on uncertain matters. For each cash-generating units to which goodwill has been allocated, the value in use is determined based on economic assumptions and forecasted operating conditions as follows: 2022 2021 2020 U.S. U.S. U.S. Weighted average cost of capital (pre-tax) 14.6 % 13.2 % 10.3 % Long-term growth rate 2.0 % 2.3 % 2.0 % Normalized tax rate 21.0 % 21.0 % 21.0 % These assumptions have been used in the impairment test for the two Cash Generating Units Our approach in determining the recoverable amount utilises a discounted cash flow methodology, which necessarily involves making numerous estimates and assumptions regarding, operating costs, appropriate discount rates and working capital requirements. The key assumptions used for estimating cash flow projections in the Group’s impairment testing are those relating to discount rate, revenue, operating cost, operating margin and carrying amount. Carrying amount for the cash-generating units is determined by allocating individual balances to each of the cash-generating units, when a balance split is not possible an allocation key is applied based on the estimated production for the following 5 year period. The key assumptions take account of the business’s expectations for the projection period. These expectations consider the macroeconomic environment, industry and market conditions, the CGU’s historical performance and any other circumstances particular to the unit, such as business strategy and product mix. In particular in the case of sales prices assumptions the Company has used the latest forward prices published by a reputable industry analyst. These estimates will likely differ from future actual results of operations and cash flows, and it is possible that these differences could be material. In addition, judgements are applied in determining the level of CGU identified for impairment testing and the criteria used to determine which assets should be aggregated. Changes in our business activities or structure may also result in additional changes to the level of testing in future periods. Further, future events could cause the Group to conclude that impairment indicators exist and that the asset values associated with a given operation have become impaired. The Company has defined a financial model which considers the revenues, expenditures, cash flows, pre tax payments and capital expenditures on a five year period (2023-2027), and perpetuity beyond this period. The financial projections to determine the net present value of future cash flows are modeled considering the principal variables that determine the historic flows of each group of cash-generating units including prices, volumes, costs, CAPEX and net working capital. The Company has assumed that the average Operating profit margin for the five year period is 23.8 % and a Compound Annual Growth Rate of (11.0) %.

Other intangible assets

Other intangible assets	12 Months Ended
Other intangible assets	Dec. 31, 2022
Disclosure of detailed information about intangible assets [abstract]
Other intangible assets	8. Other intangible assets Changes in the carrying amount of other intangible assets during the years ended December 31 are as follows: Other Accumulated Development Power Supply Computer Intangible Depreciation Impairment Expenditure Agreements Rights of Use Software Assets (Note 26.3) (Note 26.5) Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 54,874 37,836 17,049 5,249 18,872 (93,042) (20,082) 20,756 Additions 1,040 — 10 — 139,180 (7,241) (1,153) 131,836 Disposals — — (3,558) (72) (51,796) 563 3,072 (51,791) Exchange differences (4,216) — (132) (87) (540) 3,580 1,236 (159) Business disposal — — — — — — — — Balance at December 31, 2021 51,698 37,836 13,369 5,090 105,716 (96,140) (16,927) 100,642 Additions 910 — 23 522 113,159 (725) — 113,889 Disposals — — — (20) (96,869) 20 — (96,869) Exchange differences (2,914) — (153) (62) (6,102) 2,536 830 (5,865) Business disposal — — — — — — — — Balance at December 31, 2022 49,694 37,836 13,239 5,530 115,904 (94,309) (16,097) 111,797 Additions and disposals in other intangible assets in 2022 and 2021 primarily relate to the acquisition, use and expiration of rights held to emit greenhouse gasses by certain Spanish, French, Norwegian and Canadian subsidiaries (see Note During 2021 the Company recognized an impairment of $1,153 thousand in relation to our quartz mine located in Mauritania. During 2022 and 2021 the company has purchased rights to emit greenhouse gasses amounting $25,035 thousand and $44,138 thousand respectively. As a result of the Business Combination, the Company acquired a power supply agreement which provides favorable below-market power rates to the Alloy, West Virginia facility, which terminates in December 2025. At December 31, 2022 and 2021, the Company has certain intangible assets related to rights held to emit greenhouse gasses pledged as collateral for debt instruments in Canada (see Note 18).

Property, plant and equipment

Property, plant and equipment	12 Months Ended
Property, plant and equipment	Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [abstract]
Property, plant and equipment	9. Property, plant and equipment The detail of property, plant and equipment, net of the related accumulated depreciation and impairment in 2022 and 2021 is as follows: Advances and Property, Plant Other Items of Other Fixtures, and Equipment Property, Other Items Other Items Land and Plant and Tools and in the Course of Mineral Plant and of Leased of Leased Accumulated Buildings Machinery Furniture Construction Reserves Equipment Land and Plant and Depreciation Impairment Total Buildings machinery (Note 26.3) (Note 26.5) US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 208,025 1,331,585 8,422 124,029 59,325 33,188 17,588 24,446 (995,507) (191,066) 620,034 Additions 166 6,054 199 33,409 — — 576 4,113 (90,087) 1,663 (43,907) Disposals and other (1,131) (106,295) (618) (9,374) — (55) — — 73,601 39,972 (3,900) Transfers from/(to) other accounts 65 21,883 112 (23,621) — (20) — 730 867 (17) (1) Exchange differences (9,911) (50,603) (636) (10,481) (306) 476 (1,008) (1,527) 49,048 7,636 (17,312) Balance at December 31, 2021 197,214 1,202,624 7,479 113,962 59,019 33,589 17,156 27,762 (962,078) (141,811) 554,914 Additions 3,170 15,329 2,883 59,532 131 4,714 4,624 (80,834) (56,999) (47,450) Disposals and other — (18,544) (122) (595) — — — — 17,685 (90) (1,666) Transfers from/(to) other accounts 505 28,295 (349) (33,485) — 1,212 — — 3,822 — — Exchange differences (7,291) (48,278) (731) (6,021) (215) (725) (625) (1,028) 42,157 4,273 (18,484) Transfer to assets and disposal groups classified as held for sale (see Note 30) (18,108) (56,571) (470) (320) — — — — 56,297 18,105 (1,067) Balance at December 31, 2022 175,490 1,122,855 8,690 133,073 58,804 34,207 21,245 31,358 (922,951) (176,522) 486,247 In order to ascertain whether its assets have become impaired, Ferroglobe compares their carrying amount with their recoverable amount if there are indications that the assets might have become impaired. Where the asset itself does not generate cash flows that are independent from other assets, Ferroglobe estimates the recoverable amount of the cash generating unit to which the asset belongs. Recoverable amount is the higher of fair value less cost of disposal and value in use, which is the present value of the future cash flows that are expected to be derived from continuing use of the asset and from its ultimate disposal at the end of its useful life, discounted at a rate which reflects the time value of money and the risks specific to the business to which the asset belongs. If the recoverable amount of an asset or segments unit is less than its carrying amount, the carrying amount of the asset is reduced to its recoverable amount, and an impairment loss is recognized as an expense under “net impairment losses” in the consolidated income statement. The increased carrying amount of an asset due to a reversal of an impairment loss should not exceed the carrying amount that would have been determined (net of amortisation or depreciation) had no impairment loss been recognized for the asset in prior years. A reversal of an impairment is recognized as “impairment (loss) gain” in the consolidated income statement. The basis for depreciation or amortization is the carrying amount of the assets, deemed to be the acquisition cost less any accumulated impairment losses. As of December 31, 2022 the Company tested property, plant and equipment for impairment related to our solar-grade silicon metal project based in Puertollano, Spain, as the plant was shutdown at the end of 2022, the recoverable value was determined at fair value and the key assumptions used in the measurement of fair value measurements has been categorized within level “3”. Therefore, OPCO recorded an impairment of $5,515 thousand in 2022. During 2022, the Company identified indicators of impairment for some plants within the Manganese and European Silicon Alloys segments (reduction of the spread as inferred from the forward prices and increase in the energy prices). As of December 31, 2022 the Company tested property, plant and equipment for impairment, estimating the recoverable value of the cash-generating units requires significant judgment in developing and applying key underlying assumptions concerning future market and conditions (volumes, sale prices, cost structure and capital expenditure - “capex” and operating margins) for the periods projected, as well as the determination of an appropriate discount rate and terminal value assumptions (including terminal value growth rate) based on management’s business plans. An impairment was recorded according to the analysis performed. Therefore, the plant and machinery for Cee, Boo, Moi Rana and Monzon facilities were fully impaired by $20,034 thousand, $11,559 thousand, $15,749 thousand and $5,915 thousand respectively. As of December 31, 2022 the Company tested property, plant and equipment for impairment related to our silicon metal plant in Polokwane, South Africa, which has restarted in October 2022, for which the recoverable value was estimated by determining the value in use for its assets. Therefore, the company recorded an impairment reversal of $5,017 thousand for the plant in Polokwane, South Africa. As of December 31, 2022, assets related to Chateau Feuillet facility in France have been transferred to asset held for sale. The asset has been measured at the lower of carrying amount and fair value less costs to sell, and is presented separately as an asset held for sale in the current position of the financial statements. As fair value is lower than the carrying amount, the company recognized an impairment of $5,994 thousand (see Note 30). The investments in property plant and equipment in 2022 and 2021 amounted to $59,532 thousand and $33,409 thousand, respectively. The investments were in connection with productivity and efficiency improvements. In addition to the impairments indicated in the paragraphs above, the Company recorded at South Africa mines an impairment reversal of $2,750 thousand in 2022. As of December 31, 2021 the Company tested property, plant and equipment for impairment related to our solar-grade silicon metal project based in Puertollano, Spain, Château-Feuillet plants in France and our silicon metal plant in Polokwane, South Africa for which the recoverable value was determined at fair value less cost of disposal. During year ended December 31, 2021 the Company recognized an impairment reversal of $2,681 thousand in relation to our Polokwane facility in South Africa, an impairment at Château Feuillet facility in Europe $441 thousand and an impairment related to our quartz mine located in Mauritania amounting $573 thousand. Fair value for Polokwane facility as of December 31, 2021 was $7,130 thousand. As this amount is higher than the carrying amount ($4,449 thousand), the company recognized an impairment reversal of $2,681 thousand. Fair value for Chateau Feuillet facility as of December 31, 2021 was $7,285 thousand. As this amount is lower than the carrying amount ($7,726 thousand), the company recognized an impairment of $441 thousand. During 2021, as a consequence of the sale of the Niagara facility, which had a net book value of nil (an impairment had been recognized in previous periods amounting to $34,229) the Company wrote off these amounts During year ended December 31, 2020 the Company recognized an impairment of $71,929 thousand in relation to our idled capacity at the Niagara facilities in the United States $34,270 thousand, at the Polokwane facility in South Africa $8,677 thousand, at Château Feuillet facility in Europe $17,941 thousand and an impairment of $11,041 thousand in relation to our solar-grade silicon metal project in Puertollano, Spain. At December 31, 2022 and 2021, the Company has property, plant and equipment ($278,796 thousand in 2022 and $305,298 thousand in 2021) pledged as security for debt instruments in Canada, France, Norway, Spain and USA (see Note 18). Commitments At December 31, 2022 and 2021, the Company has capital expenditure commitments totaling $16,607 thousand and $3,834 thousand, respectively, primarily related to improvement works at plants.

Financial assets and other rece

Financial assets and other receivables	12 Months Ended
Financial assets and other receivables	Dec. 31, 2022
Financial assets and other receivables
Financial assets and other receivables	10. Financial assets and other receivables The company’s financial assets and their classification under IFRS 9 are as follows: 2022 classification Note Amortized cost Fair value through profit or loss - mandatorily measured Fair value through other comprehensive income - designated Total US$'000 US$'000 US$'000 US$'000 Other financial assets 10.1 13,253 936 — 14,189 Receivables from related parties 24 4,275 — — 4,275 Trade receivables 10.2 294,491 — — 294,491 Other receivables 10.2 6,039 — — 6,039 Cash and cash equivalents 317,935 — — 317,935 Restricted cash 5,008 — — 5,008 Total financial assets 641,001 936 — 641,937 2021 classification Note Amortized cost Fair value through profit or loss - mandatorily measured Fair value through other comprehensive income - designated Total US$'000 US$'000 US$'000 US$'000 Other financial assets 10.1 3,348 847 — 4,195 Receivables from related parties 24 4,540 — — 4,540 Trade receivables 10.2 321,929 — — 321,929 Other receivables 10.2 6,199 — — 6,199 Cash and cash equivalents 114,391 — — 114,391 Restricted cash 2,272 — — 2,272 Total financial assets 452,679 847 — 453,526 Restrictions on the use of group assets As of year ended December 31, 2022 and 2021, Cash and cash equivalents and restricted cash comprise the following: 2022 2021 US$'000 US$'000 Cash and cash equivalents 317,935 114,391 Non Current restricted cash presented as Cash 2,133 2,272 Current restricted cash presented as Cash 2,875 — Escrow: Hydro sale 2,133 2,272 NMTC Program 2,875 — Total 322,943 116,663 As of December 31, 2022, non-current restricted cash comprises cash in relation to the guarantees taken over escrow amounting $2,133 thousand ($2,272 thousand in 2021). The escrow was constituted in August 30, 2019, in consideration of previous FerroAtlántica; under agreement terms, the Purchaser and the Seller deposited in a restricted bank account a part of the share purchase price, guaranteeing any compensation to the purchaser for any claim under the contract. On October 30, 2021, both parts agreed the release of an amount of $3,494 thousand (€3,000 thousand) out of the Escrow funds in order to offset part of the amount that the Company owes to the buyer derived the new tolling agreement. As of December 31, 2022, current restricted cash comprises cash in relation to the NMTC program. The New Markets Tax Credit Program (NMTC Program) helps economically distressed communities attract private capital by providing investors with a federal tax credit. The net grant received by Globe Metallurgical, Inc. from the NMTC program amounts to $2,875 thousand and it will be invested in CAPEX at the Selma plant throughout fiscal year 2023 as per the investment plan of the group. The Company also has restrictions for the disposal of cash in the joint ventures with Dow Silicones Corporation. When the Company wants to access excess cash available in the joint ventures, it is necessary to organize a board meeting and approve a dividend payment. 10.1 Other financial assets As of December 31, 2022, other financial assets comprise the following: 2022 Non- Current Current Total US$'000 US$'000 US$'000 Other financial assets held with third parties: Other financial assets at amortised cost 3,344 — 3,344 Other financial assets 9,909 — 9,909 Equity securities 933 3 936 Total 14,186 3 14,189 At December 31, 2021, other financial assets comprise the following: 2021 Non- Current Current Total US$'000 US$'000 US$'000 Other financial assets held with third parties: Other financial assets at amortised cost 3,348 — 3,348 Equity securities 743 104 847 Total 4,091 104 4,195 Other financial assets at amortized cost mainly comprises deposits given to French government by Ferropem ($2,770 thousand in 2022 and 2,718 thousand in 2021), a Ferroglobe subsidiary, in respect of effort de construction The carrying amount of other financial assets at amortised cost is considered to approximate their fair value. Other financial assets comprise the investment fund of $9,909 thousand in Selma Globe Investment Fund, LLC as a result of the NMTC Program. The New Markets Tax Credit Program (NMTC Program) helps economically distressed communities attract private capital by providing investors with a federal tax credit. Investments made through the NMTC Program are used to finance businesses, breathing new life into neglected, underserved low-income communities. The reactivation of the plant in Selma, Alabama, has been granted with a $13,230 thousand allocation by the end of fiscal year 2022 under the NMTC Program (See Note 16 The loan was granted on December, 2022 therefore its carrying amount equals to its fair value as of December 31, 2022. Listed equity securities comprises investments held by Globe Argentina Metales in Pampa Energía. For those assets measured at fair value at the balance sheet date, further information on fair value measurement is provided in Note 29. 10.2 Trade and other receivables Trade and other receivables comprise the following at December 31: 2022 2021 US$'000 US$'000 Trade receivables 295,678 322,935 Less – allowance for doubtful debts (1,187) (1,006) 294,491 321,929 Tax receivables (1) 36,852 25,244 Government grant receivables 88,092 27,701 Other receivables 6,039 6,199 Total 425,474 381,073 (1) “Tax receivables” is primarily related to VAT receivables, which are recovered either by offsetting against VAT payables or are expected to be refunded by the tax authorities in the relevant jurisdictions. The trade and other receivables disclosed above are short-term in nature and therefore their carrying amount is considered to approximate their fair value. The changes in the allowance for doubtful debts during 2022 and 2021 were as follows: Allowance US$'000 Balance at January 1, 2021 1,697 Impairment losses/(reversal) recognized (580) Exchange differences (111) Balance at December 31, 2021 1,006 Impairment losses/(reversal) recognized 361 Amounts used credited to income (124) Exchange differences (56) Balance at December 31, 2022 1,187 Factoring of trade receivables On October 2, 2020, the Company signed a factoring agreement with a financial institution, to anticipate the collection of receivables issued by the Company’s European entities (Grupo FerroAtlántica, S.A. and FerroPem S.AS). The main characteristics of the factoring agreement are the following: - the maximum cash consideration advanced for the financing facility is up to € 60,000 thousand; - over collateralization of 10% of accounts receivable as guarantee provided to the Agent until payment has been satisfied; - a 0.18% to 0.25% fee charged on the total of invoices and credit notes sold to the factor; - a financing commission set at Euribor 3-month + 1% charged on the drawdowns; Other conditions are set in relation to credit insurance policy which has been structured in an excess of loss policy where the first €5,000 thousand of bad debt losses are not covered by the insurance provider. The Company has assumed the cash collateralization for the entire excess of loss, as agreed in contractual terms. On February 2022 Grupo FerroAtlántica, S.A. signed an additional factoring agreement with an additional Spanish Bank. This program offers the possibility to sell the receivables corresponding to nine customers pre-approved by the bank and its credit insurer. Receivables are pre-financed at 100% of their face value. The main characteristics of this program are the following: - the maximum cash consideration advanced for the financing facility is up to €30,000 thousand; - a service fee set at 0.25% of the receivable face value; - a cost of financing set at Euribor 12-month + 1% ; - a closing fee set at 0.25% of the financing; - an annual renewal fee set at 0.25% of the financing; - invoices that remain unpaid by the customers to the factor at due date are subject to a late payment interest charge set at Euribor 12-month + 15% , with a grace period during the first 30 days . During 2022, factoring agreements provided upfront cash consideration of approximately $895,264 thousand ($659,083 thousand in 2021). The Company has repaid $ 918,070 thousand ($640,168 thousand in 2021), showing at December 31, 2022, an on-balance sheet bank borrowing debt of $60,976 thousand (2021: $$93,090 thousand), see Note 16. At December 31, 2022, the Company held $80,112 thousand of accounts receivables recognized in consolidated balance sheet in respect of factoring agreements ($115,684 thousand at December 31, 2021). Finance costs incurred during the year ended December 31, 2022, amounts $3,426 thousand ($3,202 thousand at December 31, 2021) recognized in finance costs in the consolidated income statement. Judgements relating to the accounting for the factoring agreement The Company has assessed whether it has transferred substantially all risks and rewards, continuing to be exposed to the variable returns from its involvement in the factoring agreements as it is exposed to credit risk and late-payment risk, so the conclusion is that the derecognition criteria is not met and therefore, the account receivables sold are not derecognized from the balance sheet and an obligation is recognized as bank borrowings for the amount of cash advanced by the Leasing and Factoring Agent and by Bankinter. The amount repayable under the factoring agreements is presented as on-balance sheet factoring and the debt assigned to factoring is showed as bank borrowings. See Note 16. Government grants receivables The Company has been awarded a compensation for the indirect CO 2 During the year ended December 31, 2022, the Company recognized $72,251 thousand of income related to these compensations. The amount was deducted against the related expense in Raw Materials and energy consumption for production (2021: $31,588 thousand of income). The Company has no unfulfilled conditions in relation to government grants, but certain grants would be repayable if the Company were to substantially curtail production or employment at certain plants.

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2022
Inventories.
Inventories	11. Inventories Inventories comprise the following at December 31: 2022 2021 US$'000 US$'000 Finished goods 169,956 118,080 Raw materials in progress and industrial supplies 266,348 110,965 Other inventories 44,257 42,815 Advances to suppliers 19,519 17,937 Total 500,080 289,797 During 2022 the Company recognized an expense of $29,865 thousand, of which $17,523 related to finished goods (2021: $1,095 thousand) and $12,342 to raw material (nil in 2021) in respect of write-downs of inventory to net realizable value. The Company records expense for the write-down of inventories to Raw Materials and energy consumption for production in the consolidated income statement, see Note As of December 31, 2022 and 2021, inventories in the Company’s subsidiaries in the United States, Canada, Norway, France and Spain ($435,347 thousand in 2022 and $180,575 thousand in 2021) were pledged forming part of the collateral for debt instruments, see Note

Other assets

Other assets	12 Months Ended
Other assets	Dec. 31, 2022
Other assets abstract
Other assets	12. Other assets Other assets comprise the following at December 31: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Guarantees and deposits given 17,492 293 17,785 18,020 299 18,319 Prepayments and accrued income 37 5,925 5,962 27 3,213 3,240 Other assets 689 24,390 25,079 687 4,896 5,583 Total 18,218 30,608 48,826 18,734 8,408 27,142 As of December 31, 2022, the figure in Prepayments and accrued income increased due to prepayments recorded in “Grupo FerroAtántica S.A.U”. In 2022, a provision of $18,000 thousand was recognized at Globe Metallurgical Inc. (see Note 15) with respect to civil lawsuits arising out of a 2018 incident at Globe Metallurgical Inc.’s Selma, Alabama, facility in which two employees were injured and one of whom later died. At the time, Globe Metallurgical Inc. also recorded an expected reimbursement from the Company’s insurer as other assets for the same amount. In the first quarter of 2023, the Company reached full and final settlements of the lawsuits and all amounts were paid directly by the insurer. During 2022 and 2021, the amount in Guarantees and deposits is mainly due to a cash deposit made during 2021 with TAC ( Tennessee Valley Authority

Equity

Equity	12 Months Ended
Equity	Dec. 31, 2022
Equity [abstract]
Equity	13. Equity Share capital Ferroglobe PLC was incorporated on February 5, 2015 and issued one ordinary share with a face value of $1.00. The share was issued but uncalled. On October 13, 2015, the Company increased its share capital by £50,000 by issuing 50,000 sterling non-voting redeemable preference shares (the “Non-voting Shares”) as well as 14 ordinary shares with a par value of $1.00. Subsequently on October 13, 2015, the Company consolidated the 15 ordinary shares at a par value of $1.00 to two ordinary shares with a par value of $7.50, for a total amount of $15.00. On December 23, 2015, the Company acquired all of the issued and outstanding ordinary shares from Grupo Villar Mir, S.A.U., par value €1,000 per share, of Grupo FerroAtlántica, S.A.U. in exchange for 98,078,161 newly-issued Ferroglobe Class A ordinary shares, nominal value $7.50 per share, making Grupo FerroAtlántica, S.A.U. a wholly-owned subsidiary of the Company. The company subsequently redeemed all Non-voting Shares. Subsequently on December 23, 2015, Gordon Merger Sub, Inc., a wholly owned subsidiary of the Company, merged with Globe Specialty Metals, Inc., and all outstanding shares of GSM common stock, par value $0.0001 per share were converted to the right to receive one newly-issued Ferroglobe ordinary share, nominal value $7.50 per share. The ordinary shares were registered by the Company pursuant to a registration statement on Form F-4, which was declared effective by the SEC on August 11, 2015, and trade on the NASDAQ Global Select Market under the ticker symbol “GSM.” On June 22, 2016 the Company completed a reduction of the share capital and as such the nominal value of each share has been reduced from $7.50 to $0.01, with the amount of the capital reduction being credited to a distributable reserve. On November 18, 2016, Class A Ordinary Shares were converted into ordinary shares of Ferroglobe as a result of the distribution of beneficial interest units in the Ferroglobe Representation and Warranty Insurance Trust to certain Ferroglobe shareholders. During the years ended December 31, 2019 and December 31, 2020, the Company did not issue new ordinary shares of any class. Upon the closing of the financing transaction at July 29, 2021, the company issued 8,918,618 new ordinary shares to Rubric Capital Management LP on behalf of certain managed or sub-managed funds and accounts and Grupo Villar Mir, S.A.U for a total issued share capital of $40 million, and 1,900,000 shares and 7,013,872 shares par value $0.01 amounting to $51,522 thousand as equity work fee and bondholder equity stake related to the financing transactions. The transaction fees incurred in the issuance of the share capital of $40 million amounting to $6,647 thousand were accounted for as a deduction from equity. On October 6, 2021, the Company has entered into an equity distribution agreement (the “Equity Distribution Agreement”) with B. Riley Securities, Inc. and Cantor Fitzgerald & Co. relating to the ordinary shares, par value $0.01 per share, of Ferroglobe PLC, by which the Company may offer and sell ordinary shares having an aggregate offering price of up to $100,000,000 from time to time through B. Riley Securities, Inc. and Cantor Fitzgerald & Co. as our sales agents. The company sold 186,053 ordinary shares with net proceeds of $1.4 million in 2021 (no sales were made in 2022). At December 31, 2022, there were 188,882,316 ordinary shares in issue with a par value of $0.01, for a total issued share capital of $1,962 thousand, (2021: 188,882,316 ordinary shares in issue with a par value of $0.01, for a total issued share capital of $1,784 At December 31, 2022, the Company’s largest shareholders are as follows: Number of Shares Percentage of Name Beneficially Owned Outstanding Shares () Grupo Villar Mir, S.A.U. 81,924,822 43.7 % Cooper Creek Partners Management LLC 11,144,337 5.9 % () 187,433,543 ordinary shares were outstanding at 31 December 2022, comprising 188,882,316 shares in issue less 1,448,773 shares held in treasury Valuation adjustments Valuation adjustments comprise the following at December 31: 2022 2021 US$'000 US$'000 Actuarial gains and losses 12,817 5,525 Deferred Tax Income (See Note 23) (2,082) — Total 10,735 5,525 Note Capital management The Company’s primary objective is to maintain a balanced and sustainable capital structure through the industry’s economic cycles, while keeping the cost of capital at competitive levels so as to fund the Company’s growth. The main sources of financing are as follows: 1. cash flow from operations; 2. bank borrowings, 3. debt instruments, including the Reinstated Senior Notes due 2025. 4. factoring and forfaiting of receivables 5. Asset-Based Lending facility Capital Raising and Extension of the Maturity of the Notes On March 27, 2021, Ferroglobe and Globe and certain other members of our group entered into the Lock-Up Agreement with the Ad Hoc Group Noteholders, Grupo VM and affiliates of Tyrus Capital that set forth a plan to refinance the Notes and restructure our balance sheet. On July 30,2021 the company announced the occurrence of the “Transaction Effective Date” under the lock-up agreement dated March 27, 2021 (the “Lock-Up Agreement”) between the Parent and the financial stakeholders. The Transaction Effective Date marked the completion of the financing proposal. The principal elements of the restructuring, are set forth below: ● Issuance of $60 million of new senior secured notes ● Issuance of $40 million in new equity of Ferroglobe ● Extension of the maturity date of the Notes from March 31, 2022 to December 31, 2025 and amendment of certain other terms. On July 21, 2022, the $60 million of the new Senior secured Notes maturing on June 30, 2025 were redeemed at 100% of the principal amount thereof plus accrued interest. The Company manages its capital structure and makes adjustments in light of changes in economic conditions. To maintain or adjust the capital structure, the Company may restructure or issue new borrowings or debt, make dividend payments, return capital to shareholders or issue new shares. Management’s review of the Company’s capital structure includes monitoring of the leverage ratio. Dividends There have not been dividends paid or proposed by the Company during the year ended December 31, 2022 neither during the year ended December 31, 2021. There were earnings distributed by a Joint Venture participated by a Globe Speciality Metals, Inc subsidiary to non-controlling interests, classified as cash from operating activities, during the years ended December 31, 2022 and 2021. Non-controlling interests The changes in non-controlling interests in the consolidated statements of financial position in 2022 and 2021 were as follows: Balance US$'000 Balance at January 1, 2021 114,504 (Loss) Profit for the year (4,750) Dividends paid to joint venture partner (5,880) Translation differences 166 Other 2,013 Balance at December 31, 2021 106,053 (Loss) Profit for the year 3,514 Dividends paid to joint venture partner (3,430) Translation differences (1,873) Other 2,487 Balance at December 31, 2022 106,751 The stand-alone statutory information regarding the largest non-controlling interests, in accordance with IFRS 12 Disclosure of Interests in Other Entities, is as follows: The New Markets Tax Credit Program (NMTC Program) helps economically distressed communities attract private capital by providing investors with a federal tax credit. Investments made through the NMTC Program are used to finance businesses, breathing new life into neglected, underserved low-income communities. The reactivation of the plant in Selma, Alabama, has been granted with a $13.5 million allocation by the end of fiscal year 2022 under the NMTC Program. This allocation has been subscribed by Globe Metallurgical, Inc. (GMI) as owner of the plant and United Bank as investor and beneficiary of the tax credit resulting from this grant. As a result of the structure implemented for the NMTC, (i) Globe Specialty Metals, Inc. (GSM) has granted a loan to a special purpose vehicle (SPV I) (Leveraged Loan) and (ii) GMI has received two qualify low-income community investment loans (QLICI Loans) from another special purposes vehicle (SPV II) wholly owned by SPV I. The lender to structure this program created the two SPVs described above. The Company has no exposure, risk, commitment, or obligation with these SPVs. The Company neither has any share in the equity of these vehicles (SPV I and SPV II). Accordingly, the Company has concluded that it does not control the SPV I and SPV II and does not include the special purposes vehicles in the Company’s consolidation. WVA Manufacturing, LLC (WVA) was formed on October 28, 2009 as a wholly-owned subsidiary of Globe. On November 5, 2009, Globe sold a 49% membership interest in WVA to Dow Corning Corporation (currently named “Dow”), an unrelated third party. As part of the sale of the 49% membership interest to Dow, an operating agreement and an output and supply agreement were established. The output and supply agreement states that of the silicon metal produced by WVA, 49% will be sold to Dow and 51% to Globe, which represents each member’s ownership interest, at a price equal to WVA’s actual production cost plus $100 per metric ton. The agreement will automatically terminate upon the dissolution or liquidation of WVA in accordance with the joint venture agreement between Globe and Dow. As of December 31, 2022 and 2021, the balance of Non-controlling interest related to WVA was $62,630 thousand and $61,912 thousand, respectively. Quebec Silicon Limited Partnership (QSLP), formed under the laws of the Province of Québec on August 20, 2010 is managed by its general partner, Quebec Silicon General Partner Inc., which is 51% property of Globe. QSLP owns and operates the silicon metal operations in Bécancour, Québec. QSLP’s production output is subject to a supply agreement, which sells 51% of the production output to Globe and 49% to Dow, which represents each member’s ownership interest, at a price equal to QSLP’s actual production cost plus 250 Canadian dollars per metric ton. As of December 31, 2022 and 2021, the balance of non-controlling interest related to QSLP was $39,023 thousand and $37,682 thousand, respectively. 2022 2021 2020 WVA QSLP WVA QSLP WVA QSLP US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Statements of Financial Position Non-current assets 78,992 64,291 83,176 63,088 99,235 67,806 Current assets 86,847 53,830 73,883 46,186 65,703 37,095 Non-current liabilities 7,108 18,719 8,654 19,005 8,982 18,529 Current liabilities 53,680 21,201 43,577 14,671 33,378 16,320 Income Statements Sales 187,854 102,865 165,660 89,446 156,995 70,637 Operating profit 8,306 2,897 (4,871) 2,093 (7,503) 3,113 Profit before taxes 8,155 2,195 (5,062) 1,237 (7,503) 2,898 Net (loss) income 3,075 1,015 (3,362) 613 (2,970) 1,666 Cash Flow Statements Cash flows from operating activities (5,934) (10,037) 11,981 8,997 28,683 15,387 Cash flows from investing activities (8,304) (1,525) (3,893) (4,956) (7,977) (5,227) Cash flows from financing activities — 905 — — — — Exchange differences on cash and cash equivalents in foreign currencies — 10 — 31 — 45 Beginning balance of cash and cash equivalents 35,360 16,596 27,272 12,524 6,566 2,319 Ending balance of cash and cash equivalents 21,122 5,949 35,360 16,596 27,272 12,524

Earnings (loss) per ordinary sh

Earnings (loss) per ordinary share	12 Months Ended
Earnings (loss) per ordinary share	Dec. 31, 2022
Earnings per share [abstract]
Earnings (loss) per ordinary share	14. Earnings (loss) per ordinary share Basic earnings (loss) per ordinary share are calculated by dividing the consolidated profit (loss) for the year attributable to the Parent by the weighted average number of ordinary shares outstanding during the year, excluding the average number of treasury shares held in the year, if any. Dilutive earnings (loss) per share assumes the exercise of stock options, provided that the effect is dilutive. 2022 2021 2020 US$'000 US$'000 US$'000 Profit (Loss) for the year from continuing operations 443,828 (115,374) (244,359) (Loss) for the year from discontinued operations — — (5,399) Total Profit (Loss) for the year 443,828 (115,374) (249,758) Attributable to the Parent 440,314 (110,624) (246,339) Attributable to non-controlling interests 3,514 (4,750) (3,419) Earnings per share 2022 2021 2020 Numerator: (Loss) attributable to the Parent (US$'000) 440,314 (110,624) (246,339) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) 2.34 (0.63) (1.46) Diluted profit (loss) earnings per ordinary share (US$) 2.32 (0.63) (1.46) Numerator: (Loss) for the year from continuing operations attributable to the Parent (US$'000) 440,314 (110,624) (240,940) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) 2.34 (0.63) (1.42) Diluted profit (loss) earnings per ordinary share (US$) 2.32 (0.63) (1.42) Numerator: (Loss) profit for the year from discontinued operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) — — (0.03) Diluted (loss) earnings per ordinary share (US$) — — (0.03) No potential ordinaries shares were excluded from the calculation of diluted earnings (loss) per ordinary share because their effect would be anti-dilutive. Potential ordinary shares of 4,359,436 and of 3,411,974 were excluded from the calculation in 2021 and 2020 respectively for this reason.

Provisions

Provisions	12 Months Ended
Provisions	Dec. 31, 2022
Provisions [abstract]
Provisions	15. Provisions Provisions comprise the following as of December 31: 2022 2021 Non- Current Current Total Non- Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Provision for pensions 25,546 180 25,726 41,238 180 41,418 Environmental provision 168 1,396 1,564 2,562 1,133 3,695 Provisions for litigation — 23,142 23,142 — 1,952 1,952 Provisions for third-party liability 5,960 — 5,960 8,905 — 8,905 Provisions for C02 emissions allowances 7,956 94,800 102,756 3,033 107,213 110,246 Provision for restructuring cost — 21,539 21,539 — 22,350 22,350 Other provisions 8,040 4,450 12,490 5,220 4,797 10,017 Total 47,670 145,507 193,177 60,958 137,625 198,583 As of December 31, 2022 the restructuring provision corresponds to the restructuring process in Château-Feuillet facility in France amounting $21,539 thousand ($21,717 thousand as of December, 2021) and Monzon facility in Spain reversed with a credit to income amounting $591 thousand as of December 31, 2022. The changes in the various line items of provisions in 2022 and 2021 were as follows: Provisions for Provisions for Provisions for Provisions for Provision for Environmental Litigation Third CO2 Emissions Restructuring Other Pensions Provision in Progress Party Liability Allowances Cost Provisions Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 56,586 4,166 1,355 10,759 40,161 2 50,754 163,783 Charges for the year 5,990 28 934 588 97,982 31,838 (12) 137,348 Provisions reversed with a credit to income (1,419) (189) — — (7,830) — (9,419) (18,857) Amounts used (9,911) (1) (233) (535) (18,420) (9,534) (269) (38,903) Provision against equity (6,847) — — (1,081) — — — (7,928) Transfers from/(to) other accounts — (33) — — — 44 (28,437) (28,426) Exchange differences and others (2,981) (276) (104) (826) (1,647) — (2,600) (8,434) Balance at December 31, 2021 41,418 3,695 1,952 8,905 110,246 22,350 10,017 198,583 Charges for the year 1,405 13 22,134 454 114,185 9,092 7,022 154,305 Provisions reversed with a credit to income (3,417) — (48) — (2,435) (591) (890) (7,381) Amounts used (1,181) (345) (798) (2,863) (112,485) (8,012) (2,516) (128,200) Provision against equity (9,394) — — — — — — (9,394) Transfers from/(to) other accounts — (1,510) — — — — (666) (2,176) Exchange differences and others (3,105) (289) (98) (536) (6,755) (1,300) (477) (12,560) Balance at December 31, 2022 25,726 1,564 23,142 5,960 102,756 21,539 12,490 193,177 The main provisions relating to employee pensions are as follows: France These relate to various obligations assumed by FerroPem, SAS with various groups of employees relate to long-service benefits, medical insurance supplements and retirement obligations, all of which are defined unfunded benefit obligations, whose changes in 2022 and 2021 were as follows: 2022 2021 US$'000 US$'000 Obligations at the beginning of year 25,950 34,496 Current service cost (1,159) 1,082 Borrowing costs 310 212 Actuarial differences (4,821) (3,003) Benefits paid (1,181) (995) Exchange differences (1,253) (2,412) Others (1,508) (3,430) Obligations at the end of year 16,338 25,950 At December 31, 2022 and 2021 the effect of a 1% change in discount rate would have resulted in a change to the provision of approximately $1,695 thousand and $3,288 thousand, respectively. The following table reflects the gross benefit payments that are expected to be paid for the benefit plans for the year ended December 31, 2021: 2022 US$'000 2023 1,087 2024 1,279 2025 1,339 2026 1,316 2027 1,349 Years 2028-2032 7,237 The subsidiary recognized provisions in this connection based on an actuarial study performed by an independent expert. South Africa Defined benefit plans relate to Retirement medical aid obligations and Retirement benefits. Actuarial valuations are performed periodically by independent third parties and in the actuary’s opinion the fund was in a sound financial position. The valuation was based upon the amounts as per the latest valuation report received from third party experts. Retirement medical aid obligations The Company provides post-retirement benefits by way of medical aid contributions for employees and dependents. Retirement benefits It is the policy of the Company to provide retirement benefits to all its employees and therefore membership of the retirement fund is compulsory. The Company has both defined contribution and defined benefit plans. The pension fund obligation is recognized in current provisions as the Company will contribute the difference to the plan assets within the next 12 months. In this regard, the changes of this provision in 2022 and 2021 were as follows: 2022 2021 US$'000 US$'000 Obligations at beginning of year 3,779 3,461 Current service cost 34 32 Borrowing costs 411 390 Actuarial differences (861) 526 Benefits paid (219) (232) Exchange differences (132) (398) 3,012 3,779 At December 31, 2022 and 2021, the effect of a 1% change in the cost of the medical aid would have resulted in a change to the provision of approximately $352 thousand and $481 thousand, respectively. The breakdown, in percentage, of the plan assets are as follows: 2022 2021 Cash 56.37 % 2.85 % Equity — % 47.21 % Bond 43.63 % 17.32 % Property — % 2.79 % International — % 28.42 % Others — % 1.41 % Total 100.00 % 100.00 % As of December 31, 2022 and 2021 the Plan assets amounted to $94 thousand and $1,706 thousand, respectively. Changes in the fair value of plan assets linked to the defined benefit plans in South Africa were as set forth in the following table: 2022 2021 US$'000 US$'000 Fair value of plan assets at the beginning of the year 1,706 2,204 Interest income on assets 93 172 Benefits paid (1,619) (775) Actuarial differences (84) 223 Other (2) (118) Fair value of plan assets at the end of the year 94 1,706 Actual return on assets 9 395 Venezuela Benefit Plan The company FerroVen has pension obligations to all of its employees who, once reaching retirement age, have accumulated at least 15 years of service to the company and receive a Venezuelan Social Security Institute (IVSS) pension. In addition to the pension paid by the IVSS, 80% of the basic salary accrued when the pension benefit is awarded is guaranteed and paid by means of a lifelong monthly pension. The most recent of the present value of the defined benefit obligation actuarial valuation was determined as of December 31, 2022 by independent actuaries. The present value of the obligation for defined unfunded benefit cost, the current service cost and past service cost were determined using the projected unit credit method. In this regards, the changes of this provision in 2022 and 2021 2022 2021 US$'000 US$'000 Obligations at the beginning of year 190 22 Current service cost 66 102 Borrowing costs 748 115 Benefits paid (24) (2) Exchange differences (578) (47) Obligations at the end of year 402 190 The summary of the main actuarial assumptions used to calculate the aforementioned obligations is as follows: France South Africa Venezuela 2022 2021 2022 2021 2022 2021 Salary increase 1.60%-6.10% 1.60%-6.10% N/A N/A % 180 % 500 % Discount rate 3.84% 0.75% 8.2-12.8% 10.60-11.60% % 202.4 % 536 % Expected inflation rate 2.20% 1.60% 4.0-7.30% 5.80-7.10% % 200 % 550 % Mortality TGH05/TGF05 TGH05/TGF05 SA 85-90 / PA (90) SA 85-90 / PA (90) GAM 83 GAM 83 Retirement age 65 65 63 63 63-64 63-64 High percentages are driven by hyperinflationary economy in Venezuela. North America a. Defined Benefit Retirement and Post-retirement Plans Globe Metallurgical Inc. (“GMI”) sponsored three non-contributory defined benefit pension plans covering certain employees, which were all frozen in 2003. Core Metals sponsored a non-contributory defined benefit pension plan covering certain employees, which was closed to new participants in April 2009. The Plan’s liabilities were completely settled as a result of the amendment terminating the plan. There are no remaining participants due to the plan termination effective September 30, 2021. All obligations were satisfied due to the plan termination. The total settlement payment was $2,784 thousand and resulted in a net income of $1,027 thousand recognized in 2021. Quebec Silicon Limited partnership (“QSLP”) sponsors a contributory defined benefit pension plan and postretirement benefit plan for certain employees, based on length of service and remuneration. Post-retirement benefits consist of a group insurance plan covering plan members for life insurance, disability, hospital, medical, and dental benefits. The contributory defined benefit pension plan was closed to new participants in December 2013. On December 27, 2013, the Communications, Energy and Paper Workers Union of Canada (“CEP”) ratified a new collective bargaining agreement, which resulted in a curtailment pertaining to the closure of the postretirement benefit plan for union employees retiring after January 31, 2016. The Company’s funding policy has been to contribute, as necessary, an amount in excess of the minimum requirements in order to achieve the Company’s long-term funding targets. Benefit Obligations and Funded Status 2022 2021 USA Canada Total USA Canada Total Post- Post- Pension Pension retirement Pension Pension retirement Plans Plans Plans Plans Plans Plans US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Benefit obligation — 18,266 5,497 23,763 — 25,349 8,569 33,918 Fair value of plan assets — (17,777) — (17,777) (14) (22,417) — (22,431) Provision for pensions — 489 5,497 5,986 (14) 2,932 8,569 11,487 All North American pension and post-retirement plans are underfunded. At December 31, 2022 and 2021, the accumulated benefit obligation was $18,266 thousand and $25,349 thousand for the defined pension plan and $5,497 thousand and $8,569 thousand for the post-retirement plans, respectively. The assumptions used to determine benefit obligations as of December 31, 2022 and 2021 for the North American plans are as follows: North America – 2022 North America – 2021 USA Canada USA Canada Pension Pension Postretirement Pension Pension Postretirement Plan Plan Plan Plan Plan Plan Salary increase N/A 2.75% - 3.00% N/A N/A 2.75% - 3.00% N/A Discount rate N/A 5.25% 5.25% N/A 3.21% 3.30% Expected inflation rate N/A N/A N/A N/A N/A N/A Mortality N/A CPM2014-Private Scale CPM-B CPM2014-Private Scale CPM-B N/A CPM2014-Private Scale CPM-B CPM2014-Private Scale CPM-B Retirement age N/A 58-60 58-60 N/A 58-60 58-60 The discount rate used in calculating the present value of our pension plan obligations is developed based on the BPS&M Pension Discount Curve for 2022 and 2021 and the Mercer Proprietary Yield Curve for 2022 and 2021 for QSLP Pension and post-retirement benefit plans and the expected cash flows of the benefit payments. The Company expects to make discretionary contributions of approximately $648 thousand to the defined benefit pension and post-retirement plans for the year ending December 31, 2022. The pension plan exposes the Company to the following risks: (i) Investment risk: The defined benefit obligation is calculated using a discount rate. If the return on plan assets is below this rate, a plan deficit occurs (ii) Interest rate risk: Variation in bond rates will affect the value of the defined benefit obligation. (iii) Inflation risk: The defined benefit obligation is calculated assuming a certain level of inflation. An actual inflation higher than expected will have the effect of increasing the value of the defined benefit obligation. The following reflects the gross benefit payments that are expected to be paid in future years for the benefit plans for the year ended December 31: Non-pension Postretirement Pension Plans Plans US$'000 US$'000 2023 985 180 2024 1,027 186 2025 1,110 207 2026 1,154 227 2027 1,203 247 Years 2027-2031 6,212 1,535 The accumulated non-pension post-retirement benefit obligation has been determined by application of the provisions of the Company’s health care and life insurance plans including established maximums, relevant actuarial assumptions and health care cost trend rates projected at 5.0% for 2022 and decreasing to an ultimate rate of 4.0% in fiscal 2040. At December, 31 2022 and 2021, the effect of a 1% increase in health care cost trend rate on the non-pension post-retirement benefit obligation is $848 thousand and $1,735 thousand, respectively. At December, 31 2022 and 2021 the effect of a 1% decrease in health care cost trend rate on the non-pension post-retirement benefit obligation is ($689) thousand and ($1,327) thousand. The changes to these obligations in the current year ended December 31, 2022 were as follows: 2022 USA Canada Total Pension Pension Post-retirement Plans Plans Plans US$'000 US$'000 US$'000 US$'000 Obligations at the beginning of year — 25,349 8,569 33,918 Service cost — 162 301 463 Borrowing cost — 773 271 1,044 Actuarial differences — (5,774) (3,040) (8,814) Benefits paid — (870) (162) (1,032) Exchange differences — (1,374) (442) (1,816) Expenses — — — — Plan settlement — — — — Obligations at the end of year — 18,266 5,497 23,763 The plan assets of the defined benefit and retirement and post-retirement plans in North America are comprised of assets that have quoted market prices in an active market. The breakdown as of December 31, 2022 and 2021 of the assets by class are: 2022 2021 Cash — % — % Equity Mutual Funds 31 % 31 % Fixed Income Securities 14 % 14 % Assets held by insurance company 55 % 55 % Total 100 % 100 % For the year ended December 31, 2022, the changes in plan assets were as follows: 2022 USA Canada Pension Pension Plans Plans Total US$'000 US$'000 US$'000 Fair value of plan assets at the beginning of the year — 22,417 22,417 Interest income on assets 690 690 Benefits paid (870) (870) Actuarial return on plan assets (3,496) (3,496) Exchange differences (1,269) (1,269) Other 305 305 Plan Settlement — — Fair value of plan assets at the end of the year — 17,777 17,777 b. Other Benefit Plans The Company administers healthcare benefits for certain retired employees through a separate welfare plan requiring reimbursement from the retirees. Environmental provision Environmental provisions related to $168 thousand of non-current environmental rehabilitation obligations as of December 31, 2022 (2021: $2,562 thousand) and $1,396 thousand of current environmental rehabilitation obligations as of December 31, 2022 (2021: $1,133 thousand). A significant part of these provisions is related to residues disposal, such as the remediation costs required to comply with government regulations. Provisions for litigation Certain employees of FerroPem, SAS, then known as Pechiney Electrometallurgie, S.A., may have been exposed to asbestos at its plants in France in the decades prior to FerroAtlántica’s purchase of that business in December 2004. The Company has recognized a provision of $955 thousand during the year ended December 31, 2022 as part of the current portion of Provisions for litigation (2021: $1,143 thousand). See Note 25 for further information. The timing and amounts potential liabilities arising from such exposures is uncertain. The provision reflects the Company’s best estimate of the expenditure required to meet resulting obligations. In 2022, a provision of $18,000 thousand was recognized at Globe Metallurgical Inc. with respect to civil lawsuits arising out of a 2018 incident at Globe Metallurgical Inc.’s Selma, Alabama, facility in which two employees were injured and one of whom later died. At the time, Globe Metallurgical Inc. also recorded an expected reimbursement from the Company’s insurer as other assets for the same amount (see Note 12). In the first quarter of 2023, the Company reached full and final settlements of the lawsuits and all amounts were paid directly by the insurer. Provisions for third-party liability Provisions for third-party liability presented as non-current obligations $5,960 thousand relate to health costs for retired employees (2021: $8,905 thousand) in the Company’s subsidiary, FerroPem, SAS. The following table reflects the gross benefit payments that are expected to be paid for the benefit plans for the year ended December 31, 2022: 2022 US$'000 2023 - 2024 529 2025 270 2026 275 2027 282 Years 2028-2032 1458 The recognized provisions are based on an actuarial study performed by an independent expert. Other provisions Included in other provisions are current obligations arising from past actions that involve a probable outflow of resources that can be reliably estimated. Other provisions include taxes of $1,998 thousand (2021: $2,506 thousand) and $7,551 thousand are related to the accrued estimated costs of reclaiming the land after it has been mined for gravel or coal ($6,422 thousand as of December 31, 2021).

Bank borrowings

Bank borrowings	12 Months Ended
Bank borrowings	Dec. 31, 2022
Bank borrowings
Bank borrowings	16. Bank borrowings Bank borrowings comprise the following at December 31: 2022 Non-Current Current Limit Amount Amount Total US$'000 US$'000 US$'000 US$'000 Borrowings carried at amortised cost: Credit facilities 100,000 — — — Borrowings from receivable factoring facility 95,994 — 60,976 60,976 Other loans — 15,774 1,083 16,857 Total 15,774 62,059 77,833 2021 Non-Current Current Limit Amount Amount Total US$'000 US$'000 US$'000 US$'000 Borrowings carried at amortised cost: Credit facilities — — — — Borrowings from receivable factoring facility 67,956 — 93,090 93,090 Other loans — 3,670 2,207 5,877 Total 3,670 95,297 98,967 Credit facilities On October, 11, 2019, Ferroglobe subsidiaries Globe Specialty Metals, Inc., and QSIP Canada ULC, as borrowers, entered into a Credit and Security Agreement for a new $100 million north American asset-based revolving credit facility (the “ABL Revolver”), with PNC Bank, N.A., as lender. On March 16, 2021, the Company repaid in its entirety the remaining balance at the date for an amount equal to $39,476 thousand, cancelling its obligations derived from the contract. On June 30, 2022, The Company closed a new, five-year $100 million North American asset-based revolving credit facility (the “ABL Revolver”), involving Ferroglobe’s subsidiary, Globe Specialty Metals, Inc. (“Globe”), and its wholly owned North American subsidiaries, as borrowers, and Bank of Montreal (“BMO”), as lender and agent. At closing, there was no drawing under the ABL Revolver. Going forward, potential drawings under the ABL Revolver will be used for general corporate purposes. The ABL Revolver is subject to a borrowing base comprising North American inventory and accounts receivable of Globe (and certain of its subsidiaries) and bears interest of SOFR plus a spread of 150-175 basis points depending on the level of utilization. Under the ABL credit agreement, the borrowers commit to respect usual affirmative covenants, among others communicating any default or event of default, a change of control, the creation of acquisition of subsidiaries, a casualty or damage to any material used as a collateral, maintenance of the insurance, the compliance with ERISA and the Canadian Pension Laws, the compliance with environmental laws. The borrowers commit not to create or incur any indebtedness, capital leases in excess of a $7.5m, create liens, merge, dissolve, divide any borrowers, change the nature of the business, pay dividends, repay indebtedness for the account of holder of Equity Interests of any Loan Party or its affiliates, maintain a financial covenant consolidated fixed charge coverage ratio to be less than 1.00 Borrowings from receivable factoring facility On October 2, 2020, the Company signed a factoring agreement with a financial institution, to anticipate the collection of receivables issued by the Company’s European entities (See Note The main characteristics of the agreement are the following: - the maximum cash consideration advanced for the financing facility is up to €60,000 thousand; - over collateralization of 10% of accounts receivable as guarantee provided to the Agent until payment has been satisfied; - a 0.18% to 0.25% fee charged on the total of invoices and credit notes sold to the factor; - a financing commission set at Euribor 3-month + 1% charged on the drawdowns; Other conditions are set in relation to credit insurance policy which has been structured in an excess of loss policy where the first EUR 5,000 thousand of bad debt losses are not covered by the insurance provider. The Company has assumed the cash collateralization for the entire excess of loss, as agreed in contractual terms. On February 2022 Grupo FerroAtlántica, S.A. signed an additional factoring agreement with an additional Spanish Bank. This program offers the possibility to sell the receivables corresponding to nine customers pre-approved by the bank and its credit insurer. Receivables are pre-financed at 100% of their face value. The main characteristics of this program are the following: - the maximum cash consideration advanced for the financing facility is up to €30,000 thousand; - a service fee set at 0.25% of the receivable face value; - a cost of financing set at Euribor 12-month + 1% ; - a closing fee set at 0.25% of the financing; - an annual renewal fee set at 0.25% of the financing; - invoices that remain unpaid by the customers to the factor at due date are subject to a late payment interest charge set at Euribor 12-month + 15% , with a grace period during the first 30 days . Judgements relating to the accounting for the factoring agreement The Company has assessed whether it has transferred substantially all risks and rewards, continuing to be exposed to the variable returns from its involvement in the factoring agreement as it is exposed to credit risk, so the conclusion is that the derecognition criteria is not met and therefore, the account receivables sold are not derecognized from the balance sheet and an obligation is recognized as bank borrowings for the amount of cash advanced. The borrowings from receivable factoring facility disclosed above are short-term in nature and therefore their carrying amount is considered to approximate their fair value. Other Loans Include loans held by the Company to finance their current activities in France and in the United States. The loan related to France was signed in July 2020 for an amount of $5,277 thousand. The balance as of December 31, 2022 is $2,544 thousand ($3,670 thousand as of December 31, 2021). The loan is zero interest rate, guaranteed by French government, and the initial period is one year duration, with repayment of up to five years. The fair value of this loan as of December 31, 2022, based on discounted cash flows at a market interest rate (Level 2), amounts to $2,959 thousand. The loan related to the United States relates to the NMTC program, which has been signed in December by Globe Metallurgical, Inc, as owner of the Selma plant, for an amount of $13.230 Note 10 GSM into GMI. The loan was granted on December, 2022 therefore its carrying amount equals to its fair value as of December 31, 2022. Since December 2019, the Company entered into a forfaiting program where some of the Company’s French and Spanish entities may assign their rights to receive payments under the Contracts with the customer “ArcelorMittal Sourcing s.c.a.” in accordance with a forfaiting scheme. Foreign currency exposure of bank borrowings The breakdown by currency of bank borrowings at December 31, is as follows: 2022 Non-Current Current Principal Principal Amount Amount Total US$'000 US$'000 US$'000 Borrowings in US Dollars 13,230 170 13,400 Borrowings in Euros 2,544 61,889 64,433 Total 15,774 62,059 77,833 2021 Non-Current Current Principal Principal Amount Amount Total US$'000 US$'000 US$'000 Borrowings in US Dollars — 1,245 1,245 Borrowings in other currencies 3,670 94,052 97,722 Total 3,670 95,297 98,967 Contractual maturity of non-current bank borrowings The contractual maturity of bank borrowings at December 31, 2022, was as follows: 2022 2023 2026 2029 Total US$'000 US$'000 US$'000 US$'000 Borrowings from supplier factoring facility 60,976 — — 60,976 Other loans 1,083 2,544 13,230 16,857 Total 62,059 2,544 13,230 77,833

Leases

Leases	12 Months Ended
Leases	Dec. 31, 2022
Leases
Leases	17. Leases Lease obligations Lease obligations as at December 31 are as follows: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Other leases 12,942 8,929 21,871 9,968 8,390 18,358 Total 12,942 8,929 21,871 9,968 8,390 18,358 As of December 31, 2022 and 2021 Ferroglobe holds short-term leases and low-value leases for which it has elected to recognize right of use assets and lease liabilities. Each lease is reflected in the statement of financial position as a right of use asset and a lease liability. As of December 31, 2022 and 2021 Ferroglobe has not recorded any expense relating to variable lease payments. As of December 31, 2022 and 2021 the company has not identified any indicator for impairment in relation to the right-of-use assets. The detail, by maturity, of the non-current payment obligations under leases as of December 31, 2022 is as follows: 2024 2025 2026 2027 2028 and after Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Other leases 4,420 2,930 1,739 1,506 3,643 14,238 Total 4,420 2,930 1,739 1,506 3,643 14,238 IFRS 16 has had the following effect on components of the consolidated financial statements: 2022 2021 US$'000 US$'000 Balance at January 1, (18,358) (22,536) Additions (14,979) (7,761) Disposals and other 713 517 Interest (1,587) (1,100) Lease payments 11,590 11,285 Exchange differences 750 1,237 Balance at December 31, (21,871) (18,358) Lease liabilities were discounted at the average incremental borrowing rate of 5.3%. Leases are presented as follows in the Statement of financial position: 2022 2021 US$'000 US$'000 Non-current assets Leased land and buildings 21,245 17,156 Leased plant and machinery 31,358 27,762 Accumulated depreciation (34,622) (29,855) Non-current liabilities Lease liabilities (12,942) (9,968) Current liabilities Lease liabilities (8,929) (8,390) Leases are presented as follows in the Consolidated income statement: 2022 2021 US$'000 US$'000 Depreciation and amortization charges, operating allowances and write-downs Depreciation of right of use assets 4,767 7,357 Finance costs Interest expense on lease liabilities 1,587 1,100 Exchange differences Currency translation losses on lease liabilities 750 1,237 Currency translation gains on right of use assets (812) (1,838) Leases are presented as follows in the Statement of cash flows: 2022 2021 US$'000 US$'000 Payments for: Principal 10,003 10,185 Interest 1,587 1,100

Debt instruments

Debt instruments	12 Months Ended
Debt instruments	Dec. 31, 2022
Bank borrowings
Debt instruments	18. Debt instruments Debt instruments comprise the following at December 31: 2022 2021 US$'000 US$'000 Notes carried at amortised cost (financial liability) Secured Super Senior Notes — 60,000 Secured Reinstated Senior Notes 349,704 351,003 Unsecured Stub Notes — 4,942 Unamortised issuance costs — (6,064) Accrued coupon interest 13,569 30,416 Notes carried at amortised cost (financial asset) Secured Reinstated Senior Notes 19,048 — Accrued coupon interest 783 — Total net debt instruments 343,442 440,297 Amount due for settlement within 12 months 12,787 35,359 Amount due for settlement after 12 months 330,655 404,938 Total 343,442 440,297 On February 15, 2017, Ferroglobe and Globe (together, the “Issuers”) co-issued $350,000 thousand aggregate principal amount of 9.375% senior unsecured notes due March 1, 2022 (the “Notes”). The proceeds were used primarily to repay existing indebtedness, including borrowings, certain credit facilities and other loans. Interest on the Notes is payable semi-annually on March 1 and September 1 of each year, commencing on September 1, 2017. On March 27, 2021, Ferroglobe and Globe and certain other members of our group entered into the Lock-Up Agreement with the Ad Hoc Group Noteholders, Grupo VM and affiliates of Tyrus Capital that set forth a plan to implement a debt restructuring plan. On July 30,2021 the company announced the occurrence of the “Transaction Effective Date” under the lock-up agreement dated March 27, 2021 (the “Lock-Up Agreement”) between the Parent and the financial stakeholders. The Transaction Effective Date marks the completion of the financing process. As part of the transaction: ● The Company completed the exchange of 98.588% of the 9 ⅜% Senior Notes due 2022 (the “Stub Notes”) issued by the Ferroglobe and Globe for a total consideration per $1,000 principal amount of Old Notes comprising (i) $1,000 aggregate principal amount of new 9 ⅜% senior secured notes due 2025 issued by Ferroglobe Finance Company, PLC and Globe ( “the Issuers”) (the “Reinstated Senior Notes”) plus (ii) a fee amounting to $51,611 thousand. Notes not exchanged (the “Stub Notes”) were repaid on March 1, 2022. ● Ferroglobe Finance Company, PLC (a new, subsidiary of the Company) issued $60 million in aggregate proceeds of new 9% senior secured notes due 2025 (the “Super Senior Notes”). At the completion of the comprehensive refinancing, we recognized a charge of $90.8 million. This related to all the advisory fees and expenses, including equity granted to the noteholders, incurred during the refinancing of the prior 9.375% Senior Notes due 2022, which were deemed to be extinguished at closing and replaced with new 9.375% million Senior Notes due 2025. For accounting purposes the refinancing of the Senior Notes was considered a debt extinguishment. As a consequence: (i) We recognized a finance expense amounting to $31.7 million related to the advisory fees incurred in the exchange of the notes, (ii) Similarly to the transaction fees, the shares issued to the bondholders and the work fee were recognized as a one-off expense, amounting $51.6 million at market value. (iii) In the case of an extinguishment, any outstanding upfront fees that had been capitalized at the issuance of the original notes needs to be recycled through profit and loss, this amounted $1 million. Additionally, as a result of the refinancing, the gross carrying amount of the amortized cost of the Reinstated Notes was adjusted to reflect actual and revised estimated contractual cash flows. The gross carrying amount of the Reinstated Notes was recalculated as the present value of the estimated future contractual cash flows that are discounted at the effective interest rate of 9.096%. The adjustment amounted to $6,462 and it was recognized as an expense in the income statement. After the exchange the Senior notes were accounted under the amortized cost method. On June, 2022 Globe repurchased $19.05 million of the Reinstated Senior Notes and the corresponding accrued interest coupon amounting to $641 thousand as of the purchase date. The fair value of the Notes at the purchase date was $19.12 million and the purchase price was $1.01 per bond. Since the Company has a legally enforceable right to offset the financial liability and the financial asset, and has the intention to settle these financial instruments on a net basis, the Company has elected to offset these financial instruments and presents the net amount on the balance sheet. On July 21, 2022, the Super Senior Notes maturing on June 30, 2025 were redeemed at 100% of the principal amount thereof plus accrued interest. The remaining unamortised issuance cost amounting to $6 million have been recognized as a finance expense. The fair value of the Reinstated Senior Notes maturing on December 31, 2025, determined by reference to the closing market price on the last trading day of the year (Level 1), was $349,609 thousand. Super Senior Notes On May 17, 2021, Ferroglobe Finance Company, PLC (a new, subsidiary of the Company, “The UK issuer”) issued a tranche of the Super Senior Notes, comprising an initial $40 million of an aggregate of $60 million 9.0% senior secured notes due 2025. Additional Super Senior Notes were issued on July 29, 2021 such that a total of $60 million in aggregate principal amount was outstanding on such date. The Super Senior Notes are governed by an indenture (the “Super Senior Notes Indenture”) entered into by, among others, the UK Issuer, GLAS Trustees Limited, as trustee, Global Loan Agency Services Limited, as paying agent, GLAS Trust Corporation Limited, as security agent, and the guarantors named therein (the “Super Senior Notes Guarantors”). The Super Senior Notes mature on June 30, 2025 and are secured by certain share pledges, bank account pledges, intercompany receivables pledges, inventory pledges and security over certain mine concessions, real property, leases and other assets. The Super Senior Notes, and the guarantees thereof, are general secured, senior obligations of the UK Issuer and the Super Senior Notes Guarantors, as applicable, and rank senior in right of payment to any and all of the existing and future indebtedness of the UK Issuer and the Super Senior Notes Guarantors, as applicable, that is expressly subordinated in right of payment to the Super Senior Notes and such guarantees, as applicable. The Super Senior Notes Indenture require us to offer to repurchase all or any part of each holder’s Super Senior Notes upon the occurrence of a change of control, as defined in the Super Senior Notes Indenture, at a purchase price equal to 101% of the principal amount, plus accrued and unpaid interest thereon, to the date of purchase. The Super Senior Notes Indenture restricts, among other things, the ability of Ferroglobe and its restricted subsidiaries to: o borrow or guarantee additional indebtedness; o pay dividends, repurchase shares and make distributions of certain other payments; o make certain investments; o create certain liens; o merge or consolidate with other entities; o enter into certain transactions with affiliates; o sell, lease or transfer certain assets, including shares of any restricted subsidiary of Ferroglobe; and o guarantee certain types of other indebtedness of Ferroglobe and its restricted subsidiaries without also guaranteeing the Super Senior Notes. On July 21, 2022, the Super Senior Notes maturing on June 30, 2025 were redeemed at 100% of the principal amount thereof plus accrued interest. Reinstated Senior Notes Pursuant to the Exchange Offer, Ferroglobe PLC, the UK Issuer and Globe offered to eligible holders of the Old Notes the opportunity to exchange any and all of the Old Notes for new 9 The Reinstated Notes are governed by an indenture (the “Reinstated Notes Indenture”) entered into by, among others, Ferroglobe Finance Company PLC and Globe, as issuers, GLAS Trustees Limited, as trustee, Global Loan Agency Services Limited, as paying agent, GLAS Trust Corporation Limited, as security agent, and the guarantors named therein. The Reinstated Notes are guaranteed on a senior basis by Ferroglobe and each subsidiary of Ferroglobe that guarantees the UK Issuer’s obligations under the Super Senior Notes (other than Globe) (the “Reinstated Notes Guarantors”). The Reinstated Notes mature on December 31, 2025 and are secured by the same collateral that secures the Super Senior Notes. The Reinstated Notes, and the guarantees thereof, are general secured, senior obligations of Ferroglobe Finance Company PLC and Globe and the Reinstated Notes Guarantors, as applicable, and will rank senior in right of payment to any and all of the existing and future indebtedness of Ferroglobe, Globe and the Reinstated Notes Guarantors, as applicable, that is expressly subordinated in right of payment to the Reinstated Notes and such guarantees, as applicable. The Reinstated Notes Indenture require us to offer to repurchase all or any part of each holder’s Reinstated Notes upon the occurrence of a change of control, as defined in the Reinstated Notes Indenture, at a purchase price equal to 101% of the principal amount, plus accrued and unpaid interest thereon, to the date of purchase. The Reinstated Notes Indenture restricts, among other things, the ability of Ferroglobe and its restricted subsidiaries to: o borrow or guarantee additional indebtedness; o pay dividends, repurchase shares and make distributions of certain other payments; o make certain investments; o create certain liens; o merge or consolidate with other entities; o enter into certain transactions with affiliates; o sell, lease or transfer certain assets, including shares of any restricted subsidiary of Ferroglobe; and o guarantee certain types of other indebtedness of Ferroglobe and its restricted subsidiaries without also guaranteeing the Reinstated Notes. Compared to the Old Notes Indenture (prior to certain amendments on July 29, 2021) the Reinstated Notes Indenture have generally more stringent restrictive covenants. Some of these differences include, among others, the following: o the elimination of baskets or a reduction of basket sizes in the debt covenant, restricted payment covenant, permitted investments, o permitted liens and asset disposition; o the addition of a net leverage test in the debt covenant and reduced flexibility in financial calculations; o requirement to apply certain excess proceeds to repay debt in accordance with the applicable intercreditor agreement; o lower event of default thresholds; and o a 90% guarantor coverage test. Stub Notes The Stub Notes are senior unsecured obligations of the Issuers and are guaranteed on a senior basis by certain subsidiaries of Ferroglobe. The Notes are listed on the Irish Stock Exchange. As of December 31, 2021 $4.9 million in aggregate principal amount of the Old Notes was outstanding. This balance was settled on March 1, 2022. The Old Notes are governed by the Old Notes Indenture entered into by, among others, Ferroglobe and Globe, as issuers, Wilmington Trust, National Association, as trustee, registrar and paying agent, and the guarantors named therein (the “Old Notes Guarantors”). The Old Notes and the guarantees thereof are general unsecured, senior obligations of Ferroglobe and Globe and the Old Notes Guarantors, as applicable, and rank senior in right of payment to any and all of the existing and future indebtedness of Ferroglobe, Globe and the Old Notes Guarantors, as applicable, that is expressly subordinated in right of payment to the Old Notes and such guarantees, as applicable. Ferroglobe and Globe may redeem all or, from time to time, part of the Old Notes at a redemption price of 100% of the principal amount of the Old Notes being redeemed plus accrued and unpaid interest and additional amounts, if any, to, but not including, the applicable redemption date.

Other financial Liabilities

Other financial Liabilities	12 Months Ended
Other financial Liabilities	Dec. 31, 2022
Disclosure of financial liabilities [abstract]
Other financial liabilities	19. Other financial liabilities Other financial liabilities comprise the following at December 31: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Financial loans from government agencies 38,279 60,382 98,661 4,549 62,464 67,013 Total 38,279 60,382 98,661 4,549 62,464 67,013 Financial loans from government agencies On September 8, 2016, FerroAtlántica, S.A.U (“FAU”), as borrower, and the Spanish Ministry of Industry, Tourism and Commerce (the “Ministry”), as lender, entered into a loan agreement under which the Ministry made available to the borrower a loan in aggregate principal amount of €44,999 thousand and €26,909 thousand in connection with industrial development projects relating silicon purification project. FAU transferred the loan to OPCO before its sale. The loan is contractually due to be repaid in seven installments over a 10-year The agreement governing the loan contain the following limitations on the use of the proceeds of the outstanding loan: (1) the investment of the proceeds must occur between January 1, 2016 and February 24, 2019; (2) the allocation of the proceeds must adhere to certain approved budget categories; (3) if the final investment cost is lower than the budgeted amount, the borrower must reimburse the Ministry proportionally; and (4) the borrower must comply with certain statutory restrictions regarding related party transactions and the procurement of goods and services. On May 24, 2019, a report on uses of the loan was presented to the Ministry. On January 26, 2021, the Company received a decision from the Administration under which it was agreed to extend the grace period and the term of loan, and it will be completed by 2030. In January 25, 2022, the Ministry opened a procedure to decide about the potential reimbursement of the loan. The company presented its allegations on February 15, 2022. Based on those allegations, in January 19, 2023, a new resolution was signed by the Ministry terminating the total reimbursement procedure initiated in January 2022. Once that procedure was definitively closed, the company decided to proceed with the foreseen partial early repayment of €16.3 million in February 10, 2023. In March 3, 2022, Grupo FerroAtlántica and Grupo FerroAtlántica de Servicios (together the “Beneficiaries”) and the Sociedad Estatal de Participaciones Industriales (“SEPI”), a Spanish state-owned industrial holding company affiliated with the Ministry of Finance and Administration, entered into a loan agreement of €34.5 million. This loan is part of the SEPI fund intended to provide assistance to non-financial companies operating in strategically important sectors within Spain in the wake of the COVID-19 pandemic. The €34.5M was funded using a dual-tranche loan, with €17.25M maturing in February 2025 and €17.25M maturing in June 2025. €16.9M of the loan carries a fixed interest rate of 2% per annum, and interest on the remaining €17.6M is calculated as IBOR plus a spread of 2.5% in the first year, 3.5% in the second and third years and 5.0% in the fourth year, plus an additional 1.0% payable if the result before taxes of the Beneficiaries is positive. The loans are secured by corporate joint guarantees from Ferroglobe, Ferroglobe Holding Company and Ferroglobe Finance Company and certain share pledges, bank account pledges, intercompany receivables pledges, inventory pledges and security over certain real property, and other assets from Grupo FerroAtlántica and certain of its subsidiaries. These loans are granted at rates that are considered to be below-market rates. The company has calculated the fair value of the loans liability, based on discounted cash flows at a market interest rate (Level 2) , SEPI loan fair value as of December 31, 2022 based on discounted cash flows at a market interest rate (Level 2), amounts to $48,066 thousand. Until the loans have been fully repaid, the Beneficiaries are subject to several restrictions, including the following prohibited payments: (1) payment of dividends; (2) payment of management fee; (3) repayment of intra-group loans; (4) payment of intercompany net commercial balances as of June 30, 2021 (denominated “legacy”), with the exception of $20M of those balances. (Intercompany commercial balances generated after Jun-21 are permitted); and (5) payment of interest on intercompany loans corresponding to the years 2021 and 2022. If GFAT fails to make the payments to which it is obliged, FASEE shall have the option (but never the obligation) to convert all or part of the Participating Loan into share capital of GFAT. The loan contains a change of control clause stating that it will be considered change of control and therefore will suppose an early repayment event of the loan: with respect to GFAT, (a) if Ferroglobe Plc ceases to hold, directly or indirectly, an interest of at least 51% of the voting share capital or, (b) if Grupo Villar Mir, S.A.U. ceases to hold a stake of at least 35% of the voting share capital of Ferroglobe Plc, or loses the rights to which it is entitled as holder of such stake or more by virtue of the shareholders' agreement of Ferroglobe Plc or (c) if GFAT ceases to be the holder, directly or indirectly, of hundred percent (100%) shareholding in Grupo FerroAtlántica de Servicios. Finally, the loan contains a cross-default clause meaning that (A) If any of GFAT or GFAT de Servicios: (a) defaults on any payment obligation arising from Indebtedness contracted with any other entity for amounts exceeding, during a fiscal year, €2,500,000; or (b) defaults on due and payable payment obligations of a commercial (non-financial) nature assumed with third parties for an individual or cumulative amount exceeding €2,500,000 unless such defaults are below the average of the customary commercial defaults that the Beneficiaries or Guarantors have had between fiscal years 2016 to 2019 or (B) If any creditor that has granted Indebtedness to GFAT or GFAT de Servicios for an amount equal to or greater than €5,000,000 , is entitled to declare it liquid, due and payable before its ordinary maturity date upon a default of its obligations by GFAT or GFAT de Servicios. The remaining non-current and current balances are related to loans granted mainly by Canadian and Spanish government agencies.

Trade and other payables

Trade and other payables	12 Months Ended
Trade and other payables	Dec. 31, 2022
Trade and other payables.
Trade and other payables	20. Trade and other payables Trade and other payables comprise the following at December 31: 2022 2021 US$'000 US$'000 Payable to suppliers 219,020 200,999 Trade notes and bills payable 646 5,001 Total 219,666 206,000

Other Obligations

Other Obligations	12 Months Ended
Other Obligations	Dec. 31, 2022
Other Obligations
Other Obligations	21. Other Obligations Other obligations comprise the following at December 31: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Payable to non-current asset suppliers 183 4,149 4,332 135 2,677 2,812 Guarantees and deposits 12 235 247 14 4,554 4,568 Contingent consideration 3,893 1,945 5,838 13,504 13,023 26,527 Tolling agreement liability 33,414 3,251 36,665 24,429 2,589 27,018 Total 37,502 9,580 47,082 38,082 22,843 60,925 In 2021 we disaggregated “Other liabilities” into an additional line to the balance sheet “Other obligations“ to separately present certain contractual obligations whose nature and function differs from other items presented in the “Other liabilities line”, so as to allow a better understanding of the Company´s financial position. Contingent consideration On February 1, 2018 the Company acquired 100% of the outstanding ordinary shares of Kintuck (France) SAS and Kintuck AS from a wholly-owned subsidiary of Glencore International AG (“Glencore”) and obtained control of both entities. The new subsidiaries were renamed as Ferroglobe Mangan Norge AS and Ferroglobe Manganèse France SAS. The Company completed the acquisition through its wholly-owned subsidiary Ferroatlántica., see Note The contingent consideration arrangement requires the Company to pay the former owners of Kintuck (France) SAS and Kintuck AS a sliding scale commission based on the silicomanganese and ferromanganese sales spreads of Ferroglobe Mangan Norge and Ferroglobe Manganèse France, up to a maximum amount of $60,000 thousand (undiscounted). The contingent consideration applies to sales made up to eight The potential undiscounted amount of all future payments that the Company could be required to make under the contingent consideration arrangement is between $nil The fair value of the contingent consideration arrangement as at December, 31, 2022 of $5,838 thousand (2021: $26,527 thousand) was estimated by applying the income approach based on a Monte Carlo simulation considering various scenarios of fluctuation of future manganese alloy spreads as well at the cyclicality of manganese alloy pricing. The fair value measurement is based on significant inputs that are not observable in the market, which IFRS 13 Fair Value Measurement refers to as Level 3 inputs. Key assumptions include discount rates of 10.7 percent and 11.5 percent for Ferroglobe Mangan Norge and Ferroglobe Manganèse France respectively (2021: 10.7 percent and 10.9 percent), volumes and manganese spread. Average simulated revenues in Ferroglobe Mangan Norge and Ferroglobe Manganèse France are between $137,871 thousand and $124,999 thousand per year (2021: between $245,292 thousand and $311,050 thousand). The liability has decreased primarily driven by a reduction in the manganese spread driven by higher manganese ore costs and lower selling prices combined with higher operational costs and impact of FX and inflation forecasts. Changes in the value of contingent consideration are presented in the income statement - other operating expense. Sensitivity to changes in assumptions Changing assumptions, could significantly affect the evaluation of the fair value of the contingent consideration. The following changes to the assumptions used in the Monte Carlo simulation could lead to the following changes in the fair value: Sensibility on Sensibility on Sensibility on discount rate volumes Mn Spread Contigent consideration Decrease Increase Decrease Increase 40% 60% December 31, 2022 by 10% by 10% by 10% by 10% percentil percentil Fair value contingent consideration 5,838 5,880 5,672 4,398 7,209 1,856 12,795 Tolling agreement liability On August 30, 2019, Grupo FerroAtlántica, S.A.U. sold its 100% interest in the remainder of FerroAtlántica, S.A.U. to Kehlen Industries Management, S.L.U., an affiliate of U.S.-based TPG Sixth Street Partners. The FerroAtlántica, S.A.U. assets transferred by means of this transaction included ten hydroelectric power plants and the Cee-Dumbría ferroalloys manufacturing plant, all located in the province of A Coruña, Spain. Under the terms of the transaction, the Group will become exclusive off taker of finished products produced at the smelting plant at Cee and supplier of key raw materials to that facility pursuant to a tolling agreement expiring in 2060. In November 2020, the Tribunal Superior de Justicia de Galicia dismissed the request of separation of the Cee-Dumbria's hydroelectric plants and the ferroalloys plants. Grupo FerroAtlantica, S.A.U. appealed to the Supreme Court, in 2021 the appeal was dismissed. As of December 31, 2022, the liability recognized amounts to $36,665 thousand (€34,375 thousand). The liability recognized is considered the fair value of the tolling agreement liability as of December 31, 2022 since is approximately the amount to pay by the contract as penalty fee for an early termination of the agreement.

Other liabilities

Other liabilities	12 Months Ended
Other liabilities	Dec. 31, 2022
Other liabilities
Other liabilities	22. Other liabilities Other liabilities comprise the following at December 31: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Remuneration payable — 55,791 55,791 — 36,046 36,046 Tax payables — 37,628 37,628 — 17,613 17,613 Other liabilities 12 11,113 11,125 1,476 20,669 22,145 Total 12 104,532 104,544 1,476 74,328 75,804 Tax payables Tax payables comprise the following at December 31: 2022 2021 Current Total Current Total US$'000 US$'000 US$'000 US$'000 VAT 20,905 20,905 4,839 4,839 Accrued social security taxes payable 6,195 6,195 6,251 6,251 Personal income tax withholding payable 896 896 820 820 Other 9,632 9,632 5,703 5,703 Total 37,628 37,628 17,613 17,613

Tax matters

Tax matters	12 Months Ended
Tax matters	Dec. 31, 2022
Tax matters
Tax matters	23. Tax matters The components of current and deferred income tax expense (benefit) are as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Consolidated income statement Current income tax Current income tax charge 144,246 5,284 4,307 Adjustments in current income tax in respect of prior years (5,681) — 901 Total 138,565 5,284 5,208 Deferred tax Origination and reversal of temporary differences 15,032 (9,954) (20,961) Impact of tax rate changes 460 — — Write-down of deferred tax assets (1,448) — 37,660 Adjustments in deferred tax in respect of prior years (4,626) 108 32 Total 9,418 (9,846) 16,731 Income tax expense (benefit) 147,983 (4,562) 21,939 As the Company has significant business operations in Spain, France, South Africa and the United States, a weighted blended statutory tax rate is considered to be appropriate in estimating the Company’s expected tax rate. The following is a reconciliation of tax expense based on a weighted blended statutory income tax rate to our effective income tax expense for the years ended December 31, 2022, 2021, and 2020: 2022 2021 2020 US$'000 US$'000 US$'000 Accounting profit/(loss) before income tax 602,660 (119,936) (222,420) Adjustment for discontinued operations — — (5,399) Accounting profit/(loss) before income tax 602,660 (119,936) (227,819) At weighted statutory tax rate of 26% (2021: 19% and 2020: 24%) 157,620 (22,650) (54,294) Non-deductible income/ (expenses) (5,920) (11,399) 6,779 Differing territorial tax rates 591 2,603 3,064 Adjustments in respect of prior periods 1,368 — (50) Other items 7,539 27,884 70,123 Elimination of effect of interest in joint ventures (913) (782) 899 Other permanent differences 159 (673) (389) Incentives and deductions (11,740) 88 (2,456) US State taxes (721) 367 (1,737) Income tax expense (benefit) 147,983 (4,562) 21,939 Other items mainly comprise unrecognized temporary differences for tax losses. Deferred tax assets and liabilities For the year ended December 31,2022: Opening Recognized in Write-down of Exchange Closing Balance P&L OCI Deferred Tax Assets Differences Balance US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Intangible assets (451) (14,014) — 496 (9) (13,978) Provisions 21,672 9,090 (1,416) 9,347 (682) 38,011 Property, plant & equipment (52,231) 3,920 — (8,089) 1,670 (54,730) Inventories — 480 — 708 (2) 1,186 Tax losses 6,353 (5,894) — 2,595 205 3,259 Incentives & credits 9,333 (254) — (8,542) (505) 32 Partnership interest (8,514) — — 8,514 — — Other 5,703 (2,746) (666) (4,425) (364) (2,498) Total (18,135) (9,418) (2,082) 604 313 (28,718) For the year ended December 31, 2021: Opening Prior Year Recognized in Reclassifications Exchange Closing Balance Charge P&L Differences Balance US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Intangible assets (458) 21 (34) — 20 (451) Biological assets (1) — 1 — — — Provisions 14,235 (7) 8,503 (986) (73) 21,672 Property, plant & equipment (48,263) (585) (7,481) 3,238 860 (52,231) Inventories 64 — (64) — — Tax losses 9,525 — 1,491 (3,959) (704) 6,353 Incentives & credits 1,426 — 7,906 — 1 9,333 Partnership interest (8,983) — 469 — — (8,514) Other 4,674 — (266) 1,256 39 5,703 Total (27,781) (571) 10,524 (451) 143 (18,135) Presented in the statement of financial position as follows: 2022 2021 US$'000 US$'000 Deferred tax assets 44,644 45,246 Deferred tax liabilities (73,362) (63,381) Offset between deferred tax assets and deferred tax liabilities 37,508 38,236 Total deferred tax assets due to temporary differences recognized in the statement of financial position 7,136 7,010 Total deferred tax liabilities due to temporary differences recognized in the statement of financial position (35,854) (25,145) Unrecognized deductible temporary differences, unused tax losses and unused tax credits 2022 2021 US$'000 US$'000 Unused tax losses 587,495 624,635 Unused tax credits 6,761 8,487 Unrecognized deductible temporary differences 208,011 135,174 Total 802,267 768,296 In general terms, neither the NOLs nor the tax credits have an expiration date in the jurisdictions where they derive from. Unused tax losses and unused tax credits have decreased in 2022 compared to 2021 because of the significant positive results obtained in all jurisdictions. Unrecognized deductible temporary differences have increased in 2022 compared to 2021 due to ordinary liquidation of the tax. Management has decided to book the respective deferred tax assets corresponding to the jurisdictions where taxable profit is expected to be generated in the short and mid-term. Management of tax risks The Company is committed to conducting its tax affairs consistent with the following objectives: (i) to comply with relevant laws, rules, regulations, and reporting and disclosure requirements in whichever jurisdiction it operates; (ii) to maintain mutual trust, transparency, and respect in its dealings with all tax authorities; and (iii) to adhere with best practice and comply with the Company's internal corporate governance procedures, including but not limited to its Code of Conduct For further details please refer to the group's tax strategy which can be found here: http://investor.ferroglobe.com/corporate-governance. The Group's tax department maintains a tax risk register on a jurisdictional basis. In the jurisdictions in which the Company operates, tax returns cannot be deemed final until they have been audited by the tax authorities or until the statute-of-limitations has expired. The number of open tax years subject to examination varies depending on the tax jurisdiction. In general, the Company has the last four years open to review. The criteria that the tax authorities might adopt in relation to the years open for review could give rise to tax liabilities which cannot be quantified.

Related party transactions and

Related party transactions and balances	12 Months Ended
Related party transactions and balances	Dec. 31, 2022
Related party transactions and balances
Related party transactions and balances	24. Related party transactions and balances Balances with related parties at December 31 are as follows: 2022 Receivables Payables Non-Current Current Non-Current Current US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — 2,675 — — Villar Mir Energía, S.L.U. 1,600 — — (10) Enérgya VM Gestión de la Energía, S.L. — — — 1,800 Total 1,600 2,675 — 1,790 2021 Receivables Payables Non-Current Current Non-Current Current US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — 2,841 — — Villar Mir Energía, S.L.U. 1,699 — — 8,808 Espacio Information Technology, S.A.U. — — — 737 Total 1,699 2,841 — 9,545 The loan granted to Inmobiliaria Espacio, S.A. accrues a market interest (EURIBOR three-month rate plus 2.75%) and has a maturity in the short-term that is renewed tacitly upon maturity. Unless the parties agree the repayment, the loan is extended it automatically for one year. The balance with the other related parties arose as a result of the commercial transactions performed with them (see explanation of main transactions below). Additionally in 2022, as a result of a tax audit of the IESA tax group, a reassessment of its net operating losses (NOLs) was made within the members of the tax group with respect to fiscal years 2008 through 2012. In particular, additional NOLs were attributed to Grupo Ferroatlántica, S.A.U. (GFAT) and Ferroatlántica, S.A.U. (FAT). GFAT, as top parent company of a tax group to which FAT belonged to until fiscal year 2019, filed an amending corporate income tax (CIT) return of fiscal years 2016 and 2017. By way of this amending returns, the reassigned NOLs of FAT have been partially applied and consequently partial refund of the CIT paid in such fiscal years has been in the amount of $592,378. To the extent that the negative results obtained by GFAT and FAT when forming part of the IESA tax group were duly paid each year, this refund corresponds to IESA. GFAT has granted to IESA a loan in the amount of the CIT refund requested (the CIT loan). Therefore, upon receiving the CIT refund, the CIT loan will be canceled under an assignment and offsetting agreement between GFAT and IESA. The CIT loan bears interest annually at 5.25% fix rate for one-year loan under Ferroglobe transfer pricing policy. The Company shows a tax receivable amounting in its balance for this concept. Transactions with related parties in 2022, 2021 and 2020 are as follows: 2022 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — — Villar Mir Energía, S.L.U. — 128,211 1,612 — Espacio Information Technology, S.A.U. — — 1,008 — Enérgya VM Gestión, S.L — 4,506 646 — Other related parties — — 101 — Total — 132,717 3,367 — 2021 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — — Villar Mir Energía, S.L.U. — 132,566 1,365 — Espacio Information Technology, S.A.U. — — 3,266 — Enérgya VM Gestión, S.L — — 120 — Aurinka — — 111 — Other related parties — — 68 — Total — 132,566 4,930 — 2020 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — 16 Villar Mir Energía, S.L.U. — 39,900 647 — Espacio Information Technology, S.A.U. — — 3,171 — Enérgya VM Gestión, S.L — — 79 — Aurinka — 1 308 — Other related parties — — 3 — Total — 39,901 4,208 16 “Raw Materials and energy consumption for production” of the related parties vis-à-vis Villar Mir Energía, S.L.U. relates to the purchase of energy from the latter by the Company’s Europe – Manganese Alloys and Europe – Silicon Metals & Silicon Alloys segment. FerroAtlántica pays VM Energía a service charge in addition to paying for the cost of energy purchase from the market. Under contracts entered into with FAU on June 22, 2010 and December 29, 2010 (assigned to FerroAtlántica de Boo, S.L.U. (“FAU Boo”) and to FerroAtlántica de Sabon, S.L.U. (“FAU Sabon”) in August 2019 in anticipation of the FAU Disposal), and with Hidro Nitro Española on December 27, 2012 (assigned to FerroAtlántica del Cinca when Hidro Nitro Española was sold in December 2018), VM Energía supplies the energy needs of the Boo, Sabón and Monzón electrometallurgy facilities, as a broker for FAU BOO or FAU Sabon (now Grupo FerroAtlántica) and Hidro Nitro Española (now FerroAtlántica del Cinca) in the wholesale power market. The contracts allow FAU Boo or FAU Sabon (now Grupo FerroAtlántica) and Hidro Nitro Española (now FerroAtlántica del Cinca) to buy energy from the grid at market conditions without incurring costs normally associated with operating in the complex wholesale power market, as well as to apply for fixed price arrangements in advance from VM Energía, based on the energy markets for the power, period and profile applied for. For the fiscal year ended December 31, 2021, Grupo FerroAtlántica and FerroAtlántica del Cinca’s obligations to make payments to VM Energía under their respective agreements for the purchase of energy plus the service charge amounted to $102,066 thousand and $30,501 thousand, respectively. The contracts have a term of one year, which can be extended by the mutual consent of the parties to the contract. The contracts were renewed in January 2019 and will renew annually for up to three years unless terminated. The contracts were again renewed in January 2020. In January 2021, the contracts were renewed for two years with the possibility to extend it for additional one-year periods unless terminated with thirty days’ notice. On September 30, 2021 Grupo FerroAtlántica, S.A.U absorbed its subsidiaries FAU Boo and FAU Sabón assuming all the rights and obligations derived from those contracts. Those contracts were assigned from Villar Mir Energía SLU to Energya VM Gestión de Energía, SLU (“Energya VM”) on October 15, 2022. Therefore, since the assignment the payments for the service charge was done to Energya VM, amounting $4,506 thousand in 2022. On December 22, 2022, Grupo FerroAtlántica and VM Energía entered into a Power Purchase Agreement (PPA). Under this PPA, VM Energía would supply to Sabón plant 65 GW on a pay as produced “Other operating expenses" corresponds to the payment to Espacio Information Technology, S.A. (“Espacio I.T.”), provides information technology and data processing services to Ferroglobe PLC and certain of its direct and indirect subsidiaries: FAU (until shortly prior to the FAU Disposal when such services were assigned to Grupo FerroAtlántica de Servicios, S.L.U. (“Servicios”)), FerroAtlántica de Mexico, Silicon Smelters (Pty), Ltd. and FerroPem, SAS pursuant to several contracts. Additionally corresponds to the Payment to Villar Mir Energia, S.L.U that provides the energy needs of the mining facilities operated by RAMSA and CISA in the wholesale power market. On April 2022, Grupo VM sold its interest in Espacio I.T. so those transactions do not involve a Grupo VM subsidiary and therefore as of that date should no longer be considered as related party transactions.

Guarantee commitments to third

Guarantee commitments to third parties and contingent liabilities	12 Months Ended
	Dec. 31, 2022
Guarantee commitments to third parties and contingent liabilities
Guarantee commitments to third parties and contingent liabilities	25. Guarantee commitments to third parties and contingent liabilities Guarantee commitments to third parties As of December 31, 2022 and 2021, the Company has provided bank guarantees commitments to third parties amounting $7,905 thousand and $11,948 thousand, respectively. Management believes that any unforeseen liabilities at December 31, 2022 and 2021 that might arise from the guarantees given would not be material. Contingent liabilities In the ordinary course of its business, Ferroglobe is subject to lawsuits, investigations, claims and proceedings, including, but not limited to, contractual disputes and employment, environmental, health and safety matters. Although we cannot predict with certainty the ultimate resolution of lawsuits, investigations, claims and proceedings asserted against it, we do not believe any currently pending legal proceeding to which it is a party will have a material adverse effect on its business, prospects, financial condition, cash flows, results of operations or liquidity. Stamp Tax litigation procedure On February 2021 the Central Economic-Administrative Court ruled against the interest of Ferroglobe in a stamp duty litigation procedure initiated in 2015, where the taxpayer is Abanca. Ferroglobe agreed with Abanca that it continues the litigation at the judiciary level by filing an appeal before the Audiencia Nacional. This filing was completed in April 2021. As a result of the continuation of this litigation process, with the appropriate granting of bank guarantee by the taxpayer (Abanca), neither payment of the tax reassessment (circa 1.4MM Euro plus delay interest) nor of the penalty proposed (circa 600K Euro) are due at this stage of the process. We anticipate this stage will take between two of Ferroglobe, the full amount of the tax reassessment and the penalty would be payable by Ferroglobe in applying a compensation agreement in place between Abanca and Ferroglobe. Asbestos-related claims Certain employees of FerroPem, SAS, then known as Pechiney Electrometallurgie, S.A. (“PEM”), may have been exposed to asbestos at its plants in France in the decades prior to FerroAtlántica Group’s purchase of that business in December 2004. During the period in question, PEM was wholly-owned by Pechiney Bâtiments, S.A., which had certain indemnification obligations to FerroAtlántica pursuant to the 2004 Share Sale and Purchase Agreement under which our FerroAtlántica acquired PEM. As of December 31, 2022, approximately 100 such employees have “declared” asbestos-related injury to the French social security agencies. Approximately three Environmental matters Since 2016, GMI has been negotiating with the U.S. Department of Justice (the “DOJ”) and the U.S. Environmental Protection Agency (the “EPA”) to resolve two Notices of Violation/Findings of Violation (“NOV/FOV”) that the EPA issued to the Beverly facility. The first NOV/FOV was issued on July 1, 2015 and alleges certain violations of the Prevention of Significant Deterioration (“PSD”) and New Source Performance Standards provisions of the Clean Air Act associated with a 2013 project performed at GMI’s Beverly facility. Specifically, the July 2015 NOV/FOV alleges violations of the facility’s existing operating and construction permits, including allegations related to opacity emissions, sulfur dioxide and particulate matter emissions, and failure to keep necessary records and properly monitor certain equipment. The second NOV/FOV was issued on December 6, 2016, and arises from the same facts as the July 2015 NOV/FOV and subsequent EPA inspections. The second NOV/FOV alleges opacity exceedances at certain units, failure to prevent the release of particulate emissions through the use of furnace hoods at a certain unit, and the failure to install Reasonably Available Control Measures (as defined) at certain emission units at the Beverly facility. To resolve the NOV/FOVs, GMI likely will be required to install additional pollution control equipment, implement other measures to reduce emissions from the facility, as well as pay a civil penalty. Should the DOJ and GMI be unable to reach a negotiated resolution of the NOVs/FOVs, the authorities could institute formal legal proceedings for injunctive relief and civil penalties. The statutory maximum penalty is $93,750 per day per violation, from April 2013 to December 2021, and $109,024 per day thereafter. Liabilities in respect these claims have been recorded at December 31, 2022 at an estimated amount of $2,800 thousand in Provisions for litigation in progress. Other legal procedures In the first quarter of 2023, the Company reached full and final settlements of civil lawsuits arising out of 2018 incident at Globe Metallurgical Inc.’s Selma, Alabama, facility in which two employees were injured, one of whom later died. The Company’s insurer settled those claims for $18 m and paid the amounts directly.

Income and expenses

Income and expenses	12 Months Ended
Income and expenses	Dec. 31, 2022
Income and expenses
Income and expenses	26. Income and expenses 26.1 Sales Sales by geographical area for the years ended December 31 are as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Spain 282,387 251,528 133,370 Germany 442,331 292,774 191,107 Italy 111,887 76,721 42,067 France 148,741 130,811 79,491 Other EU Countries 162,374 176,046 88,443 USA 966,161 515,095 404,633 Rest of World 484,035 335,933 205,323 Total 2,597,916 1,778,908 1,144,434 26.2 Raw materials and energy consumption for production Raw materials and energy consumption for production are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Purchases of raw materials, supplies and goods 793,014 581,991 366,532 Variation in stocks of finished goods, raw materials, supplies and goods (163,430) (74,361) 61,827 Others 625,637 676,171 405,188 Write-down of raw materials 12,342 — — Write-down of finished goods 17,523 1,095 1,939 Total 1,285,086 1,184,896 835,486 26.3 Other operating income Other operating income are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Energy (53,802) — — C02 (88,952) (103,044) (25,702) Others (4,602) (7,041) (7,925) Total (147,356) (110,085) (33,627) The Company recognizes emission rights (allowances) allocated by government as intangible assets. The intangible asset recognized is initially measured at fair value (current market value). The allowances are granted for less than fair value, the difference between the fair value and the nominal amount paid is recognized as a government grant. The grant is initially recognized as deferred income in the statement of financial position and subsequently recognized as “other operating income” on a systematic basis on the proportion of the CO2 emitted over total CO2 expected to be emitted for the compliance period, during 2022 the Company has recorded an amount of $88,952 thousand, $103,044 thousand in 2021 and $25,702 thousand in 2020. As the Company emits CO2, it recognizes a provision for its obligation to deliver the CO2 emissions at the end of the compliance period. The provision is remeasured and recorded as an expense at the end of each reporting period at historical cost for the emission rights (allowances). Provision for its obligation to deliver the CO2 emissions is presented in the income statement - other operating expense. 26.4 Staff costs The average monthly number of employees (including Executive Directors) was: 2022 2021 2020 Directors 9 8 6 Senior Managers 288 289 291 Employees 3,173 2,997 3,020 Total 3,470 3,294 3,317 Staff costs are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Wages, salaries and similar expenses 232,880 214,374 161,957 Pension plan contributions 7,977 7,571 3,641 Employee benefit costs 73,953 58,972 49,184 Total 314,810 280,917 214,782 Share-based compensation a. Equity Incentive Plan On May 29, 2016, the board of Ferroglobe PLC adopted the Ferroglobe PLC Equity Incentive Plan (the “Plan”) and on June 29, 2016 the Plan was approved by the shareholders of the Company. The Plan is a discretionary benefit offered by Ferroglobe PLC for the benefit of selected senior employees of Ferroglobe PLC and its subsidiaries. The Plan’s main purpose is to reward and foster performance through share ownership. Awards under the plan may be structured either as conditional share awards or options with a $nil exercise price (nil cost options), except the options granted in 2021 which have a strike of 0.01. The awards are subject to a service condition of three years from the date of grant in the case of the options granted in 2017, 2018, 2019 and 2022, and four years from the date of grant in the case of the options granted in 2020, in each case to the extent that performance conditions are satisfied, and subject to continued service with the Company, remain exercisable until the tenth anniversary of their grant date. In the case of the options granted in 2021 the options vest on January 1, 2024. Details of the Plan awards during the current and prior years are as follows: Number of awards Outstanding as of December 31, 2020 3,411,974 Granted during the period 1,307,934 Exercised during the period (309,462) Expired/forfeited during the period (51,010) Outstanding as of December 31, 2021 4,359,436 Granted during the period 848,710 Exercised during the period (208,076) Expired/forfeited during the period (1,198,364) Outstanding as of December 31, 2022 3,801,706 Exercisable as of December 31, 2022 344,385 The awards outstanding under the Plan at December 31, 2022 and December 31, 2021 were as follows: Fair Value at Grant Date Performance Period Expiration Date Exercise Price Grant Date 2022 2021 September 22, 2022 December 31, 2024 September 9, 2032 nil 8.53 848,710 — September 9, 2021 December 31, 2021 September 9, 2031 nil $ 8.83 1,255,824 1,307,934 December 16, 2020 December 31, 2020 December 16, 2030 nil $ 1.23 1,352,788 1,411,271 March 13, 2019 December 31, 2021 March 13, 2029 nil $ 2.69 136,682 1,184,441 June 14, 2018 N/A June 13, 2028 nil $ 9.34 44,650 70,774 March 21, 2018 December 31, 2020 March 20, 2028 nil $ 22.56 52,819 136,434 June 20, 2017 December 31, 2019 June 20, 2027 nil $ 15.90 — — June 1, 2017 N/A June 1, 2027 nil $ 10.96 — 834 June 1, 2017 December 31, 2019 June 1, 2027 nil $ 16.77 77,712 168,469 November 24, 2016 December 31, 2018 November 24, 2026 nil $ 16.66 32,521 79,279 3,801,706 4,359,436 The awards outstanding as of December 31, 2022 had a weighted average remaining contractual life of 8.33 years (2021: 8.37 years). The weighted average share price at the date of exercise for stock options exercised in the year ended December 31, 2022 was $6.46 ($5.28 in 2021). As of December 31, 2022, 3,757,056 of the of the outstanding awards were subject to performance conditions (2021: 4,287,828 awards). For those awards subject to performance conditions, upon completion of the three years service period, the recipient will receive a number of shares or nil cost options of between 0% and 200% of the above award numbers, depending on the financial performance of the Company during the performance period. The performance conditions for the shares granted in 2022 can be summarized as follows: Vesting Conditions 40% based cumulative earnings before interest and tax (EBIT) 40% based on cumulative operational cash flow 20% based on total shareholder return (TSR) relative to a comparator group There were no performance obligations linked to 44,650 of the outstanding awards at December 31, 2022 (2021: 71,608 awards). These awards were issued as deferred bonus awards and vested subject to remaining in employment for three years . Fair Value The weighted average fair value of the awards granted during the year ended December 31, 2022 was $8.53 (2021: $8.83). The Company estimates the fair value of the awards using Stochastic and Black-Scholes option pricing models (Level 3). Where relevant, the expected life used in the model has been adjusted for the remaining time from the date of valuation until options are expected to be received, exercise restrictions (including the probability of meeting market conditions attached to the option), and performance considerations. Expected volatility is calculated over the period commensurate with the remainder of the performance period immediately prior to the date of grant. The following assumptions were used to estimate the fair value of the awards: Grant date September 22, 2022 September 9, 2021 Fair value at grant date $ 8.53 $ 8.83 Grant date share price $ 5.76 $ 8.57 Exercise price Nil 0.01 Expected volatility 94.28 % 104.75 % Option life 3.00 years 2.31 years Dividend yield — — Risk-free interest rate 4.12 % 0.28 % Remaining performance period at grant date (years) 3.00 2.31 Company TSR at grant date (27.2) % NA Median comparator group TSR at grant date 10.5 NA The Company’s TSR relative to the median comparator group TSR and median index TSR at grant date may impact the grant date fair value; starting from an advantaged position increases the fair value and starting from a disadvantaged position decreases the fair value. To model the impact of the TSR performance conditions, we have calculated the volatility of the comparator group using the same method used to calculate the Company’s volatility, using historical data, where available, which matches the length of the remaining performance period grant date. The Company’s correlation with its comparator group was assessed on the basis of all comparator group correlations, regardless of the degree of correlation, have been incorporated into the valuation model. For the year ended December 31, 2022, share-based compensation expense related to all non-vested awards amounted to $5,836 thousand, which is recorded in staff costs (2021: $3,627 thousand). b. Executive bonus plan assumed under business combination with Globe Prior to the business combination, shares of Globe Specialty Metals common stock were registered pursuant to Section 12(b) of the Exchange Act and listed on NASDAQ. As a result of the business combination between Ferroglobe and Globe, each share of Globe common stock was converted into the right to receive one Ferroglobe ordinary share. The shares of Globe common stock were suspended from trading on NASDAQ effective as of the opening of trading on December 24, 2015. Ferroglobe ordinary shares were approved for listing on The NASDAQ Global Market. At the effective time of the business combination, GSM stock and stock-based awards were replaced with stock and stock-based awards of Ferroglobe in a one to one exchange. There were not options exercised or expired during the year ended December 31, 2022 and 2021. A summary of options outstanding is as follows: Weighted- Average Weighted- Remaining Average Contractual Aggregate Number of Exercise Term in Intrinsic Options Price Years Value Outstanding as of December 31, 2020 26,268 $ 16.70 0.16 $ — Expired/forfeited during the period Outstanding as of December 31, 2021 26,268 $ 16.70 0.16 $ — Expired/forfeited during the period — Outstanding as of December 31, 2022 26,268 $ 16.70 0.16 $ — Exercisable as of December 31, 2022 26,268 $ 16.70 0.16 $ — For the year ended December 31, 2022, share based compensation expense related to stock options under this plan was $101 thousand (2021: $120 thousand). The expense is reported within staff costs in the consolidated income statement. Prior to the business combination, Globe also issued restricted stock units under the Company’s Executive Bonus Plan. The fair value of restricted stock units is based on quoted market prices of the Company’s stock at the end of each reporting period. These restricted stock units proportionally vest over three years, but are not delivered until the end of the third year. The Company will settle these awards by cash transfer, based on the Company’s stock price on the date of transfer. For the year ended December 31, 2022 and 2021 no restricted options were exercised. As of December 31, 2022, and 2021, restricted stock units of 26,268 were outstanding. 26.5 Depreciation and amortization charges, operating allowances and write-downs Depreciation and amortization charges, operating allowances and write-downs are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Amortization of intangible assets (Note 8) 725 7,241 7,183 Depreciation of property, plant and equipment (Note 9) 80,834 90,087 101,006 Total 81,559 97,328 108,189 26.6 Finance income and finance costs Finance income is comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Finance income of related parties (Note 24) — — 16 Other finance income 2,274 253 161 Total 2,274 253 177 Finance costs are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Interest on debt instruments 40,913 42,579 34,989 Interest on loans and credit facilities 9,482 12,584 8,404 Interest on note and bill discounting 125 88 363 Interest on leases 1,587 1,100 1,358 Trade receivables securitization expense (Note 10) 26 399 15,044 Other finance costs 8,882 92,439 6,810 Total 61,015 149,189 66,968 At the completion of the comprehensive refinancing, the Company recorded a finance cost of $90.8 million as of December 31, 2021 (See Note 18). 26.7 Impairment losses and net (loss) gain due to changes in the value of assets Impairment losses and net loss gain due to changes in the value of assets are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Impairment of intangible assets (Note 8) — (1,153) — Impairment of property, plant and equipment (Note 9) (56,999) 1,663 (71,929) Impairment of non-current financial assets — (373) — Impairment of other — — (1,415) Impairment reversal/(losses) (56,999) 137 (73,344) Other (loss) / profit 349 758 158 Net (loss) gain due to changes in the value of assets 349 758 158 26.8 (Loss) gain on disposal of non-current assets Loss (gain) on disposal of non-current assets is comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Gain on disposal of intangible assets — — 1,692 Loss on disposal of intangible assets (190) — — Gain on disposal of property, plant and equipment 485 2,462 473 Loss on disposal of property, plant and equipment (754) (1,123) (873) Gain on disposal of other non-current assets — 47 — Total (459) 1,386 1,292 During 2022,the French subsidiary FerroPem has sold property of Chateau-Feuillet facility, amounting to $312 thousand fully depreciated ($1,092 thousand as of December 31, 2021). During 2021, Ferroglobe has sold the assets related to Niagara facility, the Company received net cash proceeds of $1,370 thousand and recognized a gain on disposal for the same amount (zero was the net book value of Niagara assets as of December 31, 2020). Loss on disposal during 2022 and 2021 is mainly due to asset disposals in American and Canadian subsidiaries. During 2020, Ferroglobe sold CO2 emissions rights that were derecognized from the balance sheet against the cash received, as the carrying amount price per emission right was lower to the sales price per CO2 emission right, an income of $1,692 thousand was recognized on the disposal of intangible assets. 26.9 Contractual assets and liabilities Contractual assets and liabilities are comprised of the following for the years ended December 31: 2022 2021 2020 US$'000 US$'000 US$'000 Contractual Liabilities 775 5,047 1,687 Total 6,708 10,832 6,839 Contractual liabilities are recorded within “Trade and other payable” and relate to advances from customers.

Remuneration of key management

Remuneration of key management personnel	12 Months Ended
Remuneration of key management personnel	Dec. 31, 2022
Remuneration of key management personnel
Remuneration of key management personnel	27. Remuneration of key management personnel The remuneration of the key management personnel, which comprises the Company’s management committee, during the years ended December 31 is as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Fixed remuneration 5,404 5,244 5,086 Variable remuneration 5,199 1,209 756 Contributions to pension plans and insurance policies 315 373 319 Share-based compensation 5,937 3,627 2,017 Termination benefits 316 119 1,886 Other remuneration 16 17 9 Total 17,187 10,589 10,073 During 2022, 2021 and 2020, no loans and advances have been granted to key management personnel.

Financial risk management

Financial risk management	12 Months Ended
Financial risk management	Dec. 31, 2022
Financial risk management
Financial risk management	28. Financial risk management Ferroglobe operates in an international and cyclical industry which exposes it to a variety of financial risks such as currency risk, liquidity risk, interest rate risk, credit risk and risks relating to the price of finished goods, raw materials and power. The Company’s management model aims to minimize the potential adverse impact of such risks upon the Company’s financial performance. Risk is managed by the Company’s executive management, supported by the Risk Management, Treasury and Finance functions. The risk management process includes identifying and evaluating financial risks in conjunction with the Company’s operations and quantifying them by project, region and subsidiary. Management provides written policies for global risk management, as well as for specific areas such as foreign currency risk, credit risk, interest rate risk, liquidity risk, the use of hedging instruments and derivatives, and investment of surplus liquidity. The financial risks to which the Company is exposed in carrying out its business activities are as follows: a) Market risk Market risk is the risk that the Company’s future cash flows or the fair value of its financial instruments will fluctuate because of changes in market prices. The primary market risks to which the Company is exposed comprise foreign currency risk, interest rate risk and risks related to power. Foreign currency risk Ferroglobe generates sales revenue and incurs operating costs in various currencies. The prices of finished goods are to a large extent determined in international markets, primarily in US dollars and Euros. Foreign currency risk is partly mitigated by the generation of sales revenue, the purchase of raw materials and other operating costs being denominated in the same currencies. Although it has done so on occasions in the past, and may decide to do so in the future, the Company does not generally enter into foreign currency derivatives in relation to its operating cash flows. As of December 31, 2022 and December 31, 2021, the Company was not party to any foreign currency forward contracts. In July 2021 the Company completed a restructuring of its $350,000 thousand of senior unsecured Notes due 2022. This included the issue of additionally $60,000 thousand (which have been fully repaid in June 2022) of super senior secured Notes due 2025 (see Note During the year ended December 31, 2022 and 2021 the Company did not enter into any cross currency swaps. Foreign currency Sensitivity analysis The Company’s exposure to foreign currency risk arises from the translation of the foreign currency exchange gains and losses on cash and cash equivalents, accounts receivable, accounts payable and inventories that are denominated in foreign currency. Depreciation or appreciation of the USD by 10% against EUR, CAD and ZAR at December 31, 2022, while all other variables were remained constant, would have increased or (decreased) the net profit before tax of $62,764 thousand. Interest rate risk Ferroglobe is exposed to interest rate risk in respect of its financial liabilities that bear interest at floating rates. These primarily comprise credit facilities (see Note Note 17 During the year ended December 31, 2022 and 2021, the Company did not enter into any interest rate derivatives in relation to its interest bearing credit facilities. Interest Rate Sensitivity analysis At December 31, 2022, an increase of 1% in interest rates would have given rise to additional borrowing costs of $812 thousand (2021: $990 thousand). Power risk Power constitutes one of the single largest expenses for most of Ferroglobe’s products. Ferroglobe focuses on minimizing energy prices and unit consumption throughout its operations by concentrating its silicon and manganese-based alloy production during periods when energy prices are lower. In 2022, Ferroglobe’s total power consumption was 6,431 gigawatt-hours, with power contracts that vary across its operations. b) Credit risk Credit risk refers to the risk that a customer or counterparty will default on its contractual obligations resulting in financial loss. The Company’s main credit risk exposure related to financial assets is set out in Note 10 and includes trade receivables, other receivables and other financial assets. Trade receivables consist of a large number of customers, spread across diverse industries and geographical areas. The Company has established policies, procedures and controls relating to customer credit risk management. Ongoing credit evaluation is performed on the financial condition of accounts receivable and, where appropriate, the Company insures its trade receivables with reputable credit insurance companies. Since October 2020, the Company entered into a factoring program where the receivables of some of the Company’s French and Spanish entities are prefinanced by a factor (see Note Since December 2019, the Company entered into a forfaiting program where some of the Company’s French and Spanish entities may assign their rights to receive payments under the Contracts with the customer “ArcelorMittal Sourcing s.c.a.” in accordance with a forfaiting scheme. c) Liquidity risk The purpose of the Company’s liquidity and financing policy is to ensure that the Company keeps sufficient funds available to meet its financial obligations as they fall due. The Company’s main sources of financing are as follows: ● $345,058 thousand aggregate principal amount of 9.375% senior secured notes due December 31, 2025 (the “Reinstated Senior Notes”). Interest is payable semi-annually on January 31 and July 31 of each year. ● $60,000 thousand aggregate principal amount of 9% super senior secured notes due June 30, 2025 (the “Super Senior Notes”). Interest is payable semi-annually on January 31 and July 31 of each year. On July 21, 2022, the Super Senior Notes were redeemed at 100% of the principal amount. ● On September 8, 2016, FerroAtlántica, S.A.U, as borrower, and the Spanish Ministry of Industry, Tourism and Commerce (the “Ministry”), as lender, entered into a loan agreement under which the Ministry made available to the borrower loans in aggregate principal amount of €44,999 thousand in connection with industrial development projects relating silicon purification project. FAU transferred the loan to OPCO before its sale. The loan is contractually due to be repaid in 7 instalments starting in 2023 and completing by 2030. Interest on outstanding amounts under the loan accrues at an annual rate of 3.55% . As of December 31, 2022, the amortized cost of the loan was €54,989 thousand (equivalent to $58,651 thousand) (2021: €54,578 thousand and $61,815 thousand)., see Note 19. ● On October 2, 2020, the Company ended the receivables funding agreement and cancelled the securitization program, signing a new factoring agreement with a financial institution, for anticipating the collection of receivables of the Company’s European entities (Grupo FerroAtlántica, S.A. and FerroPem S.AS). On February 2022 Grupo FerroAtlántica, S.A. signed an additional factoring agreement with Bankinter. This program offers the possibility to sell the receivables corresponding to ten customers pre-approved by the bank and its credit insurer. During 2022, the factoring agreements provided upfront cash consideration of approximately $895,264 thousand ( $659,083 thousand in 2021). The Company has repaid $ 918,070 thousand ( $640,168 thousand in 2021), showing at December 31, 2022, an on-balance sheet bank borrowing debt of $ 60,976 thousand (2021: $ $93,090 thousand) (see Note 10 and 16). ● On October 11, 2019, Ferroglobe subsidiaries Globe Specialty Metals, Inc., and QSIP Canada ULC, as borrowers, entered into a Credit and Security Agreement for a new $100 million north American asset-based revolving credit facility (the “ABL Revolver”), with PNC Bank, N.A., as lender. On March 16, 2021, the Company repaid in its entirety the remaining balance at the date for an amount equal to $39,476 thousand, cancelling its obligations derived from the contract. On June 30, 2022, The Company closed a new, five-year $100 million North American asset-based revolving credit facility (the “ABL Revolver”), involving Ferroglobe’s subsidiary, Globe Specialty Metals, Inc. (“Globe”), and its wholly owned North American subsidiaries, as borrowers, and Bank of Montreal (“BMO”), as lender and agent. ● On July 23, 2020, Ferroglobe subsidiary, Ferropem, S.A.S., as borrower, contracted a loan with BNP Paribas, as lender, amounting to €4,456 thousand, to finance Company’s activities in France. The loan is guaranteed by the French government as part of the COVID-19 relief measures. Repayment of principal and payment of interest and accessories offer the possibility for the Borrower to extend the amortization of the amounts due at maturity for an additional period of 1 to 5 years . Interest rate is zero percent and the borrower is liable to pay a 0.50% fee calculated on the capital borrowed equivalent to an amount of €22 thousand. ● On June 2, 2020, Ferroglobe subsidiary, Silicium Québec, as borrower, contracted a $7,000 thousand loan with Investissement Québec, a regional government loan & investment agency, as lender, to finance its capital expenditures activities in Canada. The loan is to be repaid in 84 installments over a 10 year period with the first three years as a grace period. Interest rate on outstanding amounts is zero percent. ● On March 3, 2022, Grupo FerroAtlántica and Grupo FerroAtlántica de Servicios (together the “Beneficiaries”) and the Sociedad Estatal de Participaciones Industriales (“SEPI”), a Spanish state-owned industrial holding company affiliated with the Ministry of Finance and Administration, entered into a loan agreement of €34.5 million. This loan is part of the SEPI fund intended to provide assistance to non-financial companies operating in strategically important sectors within Spain in the wake of the COVID-19 pandemic. The funds are subject to certain governance conditions that imply, among others, the prohibition of distributing dividends, paying non-mandatory coupons or acquiring own shares and the prohibition of the use of the funds for financing economic activities of the group subsidiaries that are not beneficiaries. Quantitative information i. Interest rate risk: At December 31, the Company’s interest-bearing financial liabilities were as follows: 2022 Fixed rate Floating rate Total US$'000 US$'000 US$'000 Bank borrowings 16,857 60,976 77,833 Obligations under leases — 21,872 21,872 Debt instruments 343,443 — 343,443 Other financial liabilities () 80,388 18,273 98,661 440,688 101,121 541,809 () Note 2021 Fixed rate Floating rate Total US$'000 US$'000 US$'000 Bank borrowings — 98,967 98,967 Obligations under leases — 18,358 18,358 Debt instruments 440,297 — 440,297 Other financial liabilities () 67,013 — 67,013 507,310 117,325 624,635 () Note ii. Foreign currency risk: Notes and cross currency swap In 2021, due to an occurrence of events and conditions that reduce the number of transactions in euros, management conducted a review of the functional currency of the Parent Company and concluded that there has been a change in its functional currency from Euro to US Dollars, effective since October 1, 2021 (see Note 3.3). Therefore, The Parent Company is no longer exposed to exchange rate fluctuations. Foreign currency swaps in relation to trade receivables and trade payables At December 31, 2022 and 2021, the Company has no foreign currency swaps in place in respect of foreign currency accounts receivable and accounts payable. iii. Liquidity risk: The table below summarizes the maturity profile of the Company’s financial liabilities at December 31, 2022, based on contractual undiscounted payments. The table includes both interest and principal cash flows. The cash flows for debt instruments assume that principal of Reinstated Senior Notes is repaid at maturity in December 2025 (see Note 2022 Less than 1 year Between 1-2 years Between 2-5 years After 5 years Total US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 61,888 — 2,544 13,230 77,662 Leases 8,928 7,349 6,888 — 23,166 Debt instruments 32,439 423,235 — — 455,674 Financial loans from government agencies 61,796 4,336 41,239 2,792 110,163 Payables to related parties 1,790 — — — 1,790 Payable to non-current asset suppliers 4,149 183 — — 4,332 Contingent consideration 1,945 3,930 1,257 — 7,132 Tolling agreement liability 3,555 7,110 10,665 113,759 135,089 Trade and other payables 219,666 — — — 219,666 396,156 446,143 62,593 129,781 1,034,674 2021 Less than 1 year Between 1-2 years Between 2-5 years After 5 years Total US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 95,899 — 3,670 — 99,569 Leases 8,092 5,897 3,251 1,289 18,529 Debt instruments 57,440 37,749 493,585 — 588,774 Financial loans from government agencies 63,868 4,304 245 68,417 Payables to related parties 9,545 — — — 9,545 Payable to non-current asset suppliers 2,677 135 — — 2,812 Contingent consideration 13,023 10,684 6,844 — 30,551 Tolling agreement liability 2,589 2,367 5,952 18,379 29,287 Trade and other payables 206,000 — — — 206,000 459,133 61,136 513,547 19,668 1,053,484 Additionally, as of December 31, 2022, the Company has long-term power purchase commitments amounting to $526,841 thousand ($294,557 thousand in 2021), which represents minimum charges that are enforceable and legally binding, and do not represent total anticipated purchase. Changes in liabilities arising from financing activities The changes in liabilities arising from financing activities during the year ended December 31, 2022 and 2021 were as follows: January 1, 2022 Changes from financing cash flows Effect of changes in foreign exchange rates Changes in fair values Interest expenses Other changes December 31, 2022 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 98,967 (24,529) (5,991) — 3,185 6,201 77,833 Obligations under leases (Note 17) 18,358 (11,590) (750) — 1,587 14,266 21,871 Debt instruments 440,297 (136,260) — 190 34,404 4,811 343,442 Financial loans from government agencies (Note 19) 67,013 35,924 (5,289) — 5,239 (4,226) 98,661 Total liabilities from financing activities 624,635 (136,455) (12,030) 190 44,415 21,052 541,807 Other amounts paid due to net financing activities (4,003) Net cash (used) by financing activities (140,458) January 1, 2021 Changes from financing cash flows Effect of changes in foreign exchange rates Changes in fair values Interest expenses Other changes December 31, 2021 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 107,607 (15,604) 1,927 — — 5,037 98,967 Obligations under leases (Note 17) 22,536 (11,232) (1,188) — — 8,242 18,358 Debt instruments () 357,508 43,295 — 6,462 36,233 (3,201) 440,297 Financial loans from government agencies (Note 19) 63,896 (2,252) (702) — 6,071 — 67,013 Total liabilities from financing activities 551,547 14,207 37 6,462 42,304 10,078 624,635 Other amounts paid due to net financing activities () (3,755) Net cash provided by financing activities 10,452 () Changes from financing cash flows in debt instruments include payments due to interest amounting to $16,705 thousand and proceeds from debt issuances of $60,000 thousand. (**) Other amounts paid due to financing activities include payments due to equity issuance costs amounting to $43,755 thousand and proceeds from equity issuance of $40,000 thousand.

Fair value measurement

Fair value measurement	12 Months Ended
Fair value measurement	Dec. 31, 2022
Disclosure of financial liabilities [abstract]
Fair value measurement	29. Fair value measurement Fair value of assets and liabilities that are measured at fair value on a recurring basis The following table provides the fair value measurement hierarchy of the Company’s assets and liabilities that are carried at fair value in the statement of financial position: December 31, 2022 Quoted prices in active markets Significant observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) US$'000 US$'000 US$'000 US$'000 Other financial assets (Note 10): Listed equity securities 936 936 — — Other obligations (Note 21) Contingent consideration in a business combination (5,838) — — (5,838) December 31, 2021 Quoted prices in active markets Significant observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) US$'000 US$'000 US$'000 US$'000 Other financial assets (Note 10): Listed equity securities 847 847 — — Other obligations (Note 21) Contingent consideration in a business combination (26,527) — — (26,527) A reconciliation of the beginning and ending balances of all liabilities at fair value on recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2022, presented as follows: Total US$'000 Fair value at December 31, 2020 (16,632) Changes in fair value through profit or loss (13,168) Payments 3,273 Fair value at December 31, 2021 (26,527) Changes in fair value through profit or loss 1,758 Payments 18,931 Fair value at December 31, 2022 (5,838)

Assets and disposal groups clas

Assets and disposal groups classified as held for sale and discontinued operations	12 Months Ended
	Dec. 31, 2022
Assets and disposal groups classified as held for sale and discontinued operations
Assets and disposal groups classified as held for sale and discontinued operations	30. Assets and disposal groups classified as held for sale and discontinued operations Assets and disposal groups classified as held for sale At the end of 2022, the Company received two offers to sale the assets related to Chateau Feuillet facility in France, stopped operations since March 202 and the Board approved the sale. Consequently, the assets were classified as held for sale in the balance sheet as of December 31, 2022. In accordance with IFRS 5, the Company ceased to recognize depreciation expense in relation to its assets in Chateau Feuillet while it is classified as held for sale. The assets transferred to held for sale have been measured at the lower of carrying amount and fair value less costs to sell and are presented separately in the statement of financial position. The fair value, according to the offers received, as of December 31, 2022 was $1,067 thousand and carrying value $7,061 thousand, since fair value is lower than the carrying amount, the company recognized an impairment of $5,994 thousand. The Company expect to achieve a sale agreement during first half of 2023. Discontinued operations As of December, 31 2022 and 2021, there were not discontinued operations. For the year ended December, 31 2020, the Company recorded $5,399 thousand related to price adjustment on the sale of Group’s hydro-electric assets in 2019. The amount was recognized in Discontinued operations in Consolidated Income Statement. Analysis of the result for the period from the discontinued operations The results of the discontinued operations included in the (loss) profit after taxes from discontinued operations are set out below. The profit and loss statement from discontinued operations is as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Sales — — — Raw materials and energy consumption for production — — — Other operating income — — — Staff costs — — — Other operating expense — — — Depreciation and amortization charges, operating allowances and write-downs — — — Impairment losses — — — Operating Profit (loss) — — — Net finance expense — — — (LOSS) PROFIT BEFORE TAXES FROM DISCONTINUED OPERATIONS — — — Income tax expense — — — Gain on sale of discontinued operation — — (5,399) (LOSS) PROFIT AFTER TAXES FROM DISCONTINUED OPERATIONS — — (5,399) Basic earnings (loss) per ordinary share are calculated by dividing the consolidated profit (loss) for the year attributable to the Discontinued Operations by the weighted average number of ordinary shares outstanding during the year, excluding the average number of treasury shares held in the year, if any. Dilutive earnings (loss) per share assumes the exercise of stock options, provided that the effect is dilutive. The Earnings per share is showed as follows: 2022 2021 2020 Basic earnings (loss) per ordinary share computation Numerator: Profit (loss) attributable to Discontinued Operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding — — 169,269,281 Basic earnings (loss) per ordinary share (US$) — — (0.03) Diluted earnings (loss) per ordinary share computation Numerator: Profit (loss) attributable to Discontinued Operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding — — 169,269,281 Effect of dilutive securities — — — Weighted average dilutive shares outstanding — — 169,269,281 Diluted earnings (loss) per ordinary share (US$) — — (0.03) The statement of cash flows from discontinued operations is showed as follows: 2022 2021 2020 US$'000 US$'000 US$'000 Cash flows from operating activities: Profit for the period — — (5,399) Adjustments to reconcile net (loss) profit to net cash provided by operating activities: Income tax expense (benefit) — — — Depreciation and amortization charges, operating allowances and write-downs — — — Net Finance expense — — — Gains on disposals of non-current and financial assets — — 5,399 Changes in working capital Decrease / (increase) in accounts receivable — — — Decrease / (increase) in inventories — — — Increase / (Decrease) in accounts payable — — — Other changes in operating assets and liabilities Other, net — — (24) Income tax paid — — — Interest paid — — — Total cash flow from operating activities — — (24) Cash flows from investing activities: Payments due to investments: Property, plant and equipment — — — Disposals: Disposal of business, net of cash — — — Total cash flow from investing activities — — — Cash flows from financing activities: Other financing activities — — — Total cash flow from financing activities — — — INCREASE / (DECREASE) IN CASH — — (24) CASH AT BEGINNING OF PERIOD — — 24 CASH AT END OF PERIOD — — —

Other disclosures

Other disclosures	12 Months Ended
Other disclosures	Dec. 31, 2022
Other Disclosures [Abstract]
Other disclosures	31. Other disclosures Restricted Net Assets Certain of our entities are restricted from remitting certain funds to us in the form of cash dividends or loans by a variety of, contractual requirements. These restrictions are related to standard covenant requirements included in our bank borrowings and debt instruments, such as the SEPI loan and the ABL Revolver. Additionally, the Company has restrictions for the disposal of cash in the joint ventures. Consequently, net assets from Ferroglobe subsidiaries Globe Specialty Metals, Inc., and other subsidiaries in the USA, QSIP Canada ULC, Grupo Ferroatlántica and the Joint Ventures are restricted. Please refer to Notes 10, 16 and 19 for further details of these restrictions. As of December 31, 2022, the restricted net assets of the Ferroglobe Group’s subsidiaries were approximately $496,983 thousand. The Company performed a test on the restricted net assets of combined subsidiaries in accordance with Securities and Exchange Commission Regulation rule 5-04 (c) ‘what schedules are to be filed’ and concluded the restricted net assets exceed 25% of the consolidated net assets of the Company at December 31, 2022. Therefore the separate condensed financial statements, as per SEC rule S-X 12-04, of Ferroglobe PLC are presented (see Appendix I, considered to be part of the footnotes, for details.) Additionally, the Super Senior Notes restricts the ability of Ferroglobe PLC to pay dividends.

Events after the reporting peri

Events after the reporting period	12 Months Ended
Events after the reporting period	Dec. 31, 2022
Events after the reporting period
Events after the reporting period	3 2. Events after the reporting period REINDUS loan On January 19, 2023, a new resolution was signed by the Ministry terminating the total reimbursement procedure initiated in January 2022. Once that procedure was definitively closed, the company decided to proceed with the foreseen partial early repayment of €16.3 million on February 10, 2023 Grupo Villar Mir On February 28, 2023 Grupo Villar Mir has reduced the number of shares owned from 81,924,822 to 76,265,434 shares, representing approximately 40.72% of the capital of the company. Reinstated Senior Notes On March 1, 2023 Globe repurchased $25.7 million of the Reinstated Senior Notes and the corresponding accrued interest coupon amounting to $207 thousand as of the purchase date. The fair value of the Notes at the purchase date was $26.1 million and the purchase price was $1.01 per bond.

Schedule I

Schedule I	12 Months Ended
Schedule I	Dec. 31, 2022
Schedule I
Schedule I	Appendix I Schedule I has been provided pursuant to the requirements of Rule 12- 04(a) of Regulation S-X, of the US Securities and Exchange Commission (SEC) which require condensed financial information as to the financial position, cash flows and results of operations of Ferroglobe PLC, as of the same dates and for the same periods for which audited consolidated financial statements have been presented when the restricted net assets of consolidated subsidiaries exceed 25 percent of consolidated net assets as of the end of the most recently completed fiscal year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with International Financial Reporting Standards have been condensed or omitted. The footnote disclosures contain supplementary information only and, as such, these statements should be read in conjunction with the notes to the accompanying consolidated financial statements. Basis of Presentation. The presentation of Ferroglobe PLC separate condensed financial statements have been prepared using the same accounting policies as set out in the accompanying consolidated financial statements except that, in the separate condensed financial statements the investments in subsidiaries are being recorded at historic cost. SCHEDULE I - FERROGLOBE PLC (Parent company) CONDENSED STATEMENT OF FINANCIAL POSITION AS OF DECEMBER 31, 2022 AND 2021 Thousand of US dollars 2022 2021 US$'000 US$'000 ASSETS Non-current assets Investment in subsidiaries 629,284 629,284 Intangible assets 522 — Property, plant and equipment 449 105 Trade and other receivables from subsidiaries 263,058 227,865 Total non-current assets 893,313 857,254 Current assets Trade and other receivables 797 350 Trade and other receivables from subsidiaries 118,210 159,874 Other current assets 435 441 Cash and cash equivalents 605 1,311 Total current assets 120,047 161,976 Total assets 1,013,360 1,019,230 EQUITY AND LIABILITIES Equity Share capital 1,964 1,964 Other Reserves (158,958) (164,783) Retained earnings 734,095 774,531 Total equity 577,101 611,712 Non-current liabilities Lease liabilities 372 25 Trade and other payables 183,721 — Other non-current liabilities 11 — Total non-current liabilities 184,104 25 Current liabilities Debt instruments 2,181 Lease liabilities 550 568 Trade and other payables 10,634 11,221 Trade and other payables to subsidiaries 240,753 392,803 Current income tax liabilities 115 490 Other current liabilities 103 230 Total current liabilities 252,155 407,493 Total equity and liabilities 1,013,360 1,019,230 The accompanying notes are an integral part of these Condensed Financial Statements. SCHEDULE I - FERROGLOBE PLC (Parent company) CONDENSED INCOME STATEMENT FOR THE PERIODS ENDING DECEMBER 31, 2022, 2021 and 2020 Thousand of US dollars 2022 2021 2020 US$'000 US$'000 US$'000 Other operating income 41,816 32,037 13,618 Staff costs (5,864) (4,983) (6,379) Other operating expense (51,864) (36,859) (18,166) Depreciation and amortization charges, operating allowances and write-downs (104) (109) (3) Finance income 4,029 77,232 8,976 Finance costs (26,444) (96,581) (22,069) Exchange differences (2,005) (15,227) 25,516 Financial derivative (gain) loss — — 3,168 (Loss) before tax (40,436) (44,490) 4,661 Income tax benefit (expense) — (515) Total (Loss) profit for the year (40,436) (44,490) 4,146 The accompanying notes are an integral part of these Condensed Financial Statements. SCHEDULE I - FERROGLOBE PLC (Parent company) CONDENSED STATEMENT OF CASH FLOWS FOR THE PERIODS ENDING DECEMBER 31 Thousand of US dollars 2022 2021 2020 US$'000 US$'000 US$'000 Cash flows from operating activities: (Loss) for the year (40,436) (44,490) 4,146 Adjustments to reconcile net profit (loss) to net cash provided by operating activities: Income tax expense — — 515 Depreciation and amortization charges, operating allowances and write-downs 104 109 3 Finance income (loss) (4,029) (77,232) (8,976) Finance costs 26,444 96,581 22,069 Exchange differences 2,005 15,227 (25,516) Financial derivative gain (loss) — — (3,168) Share-based compensation 5,836 3,627 2,017 Changes in operating assets and liabilities: (Increase) decrease in trade and other receivables 7,138 1,431 (21,300) Increase (decrease) in trade and other payables 5,205 (22,169) 47,456 Other changes in operating assets and liabilities (492) (548) (10,146) Net used cash provided (used) by operating activities 1,775 (27,464) 7,100 Cash flows from investing activities: Payments due to investments: Other intangible assets (522) — — Net cash provided (used) by investing activities (522) — — Cash flows from financing activities: Payment for equity issuance costs — (6,647) — Proceeds from equity issuance — 41,440 — Bank borrowings — 218 — Repayment of debt instruments (2,181) — — Amounts paid due to leases (123) (111) (733) Interest paid — (7,031) (6,590) Net cash provided (used) by financing activities (2,304) 27,869 (7,323) Total net cash flows for the year (1,051) 405 (223) Beginning balance of cash and cash equivalents 1,311 1,065 1,199 Exchange differences on cash and cash equivalents in foreign currencies 345 (159) 89 Ending balance of cash and cash equivalents 605 1,311 1,065 The accompanying notes are an integral part of these Condensed Financial Statements. SCHEDULE I - FERROGLOBE PLC (Parent company only) Notes to Condensed Financial Statements 1. Basis for presentation The presentation of Ferroglobe PLC separate condensed financial statements have been prepared using the same accounting policies as set out in the accompanying consolidated financial statements except that, in the separate condensed financial statements the investments in subsidiaries are being recorded at historic cost. The Parent Company prepared these unconsolidated financial statements in accordance with International Accounting Standards 27, "Separate Financial Statements", as issued by the International Accounting Standards Board. 2. Commitments, long term obligations and contingencies Commitments and long term obligations On February 15, 2017, Ferroglobe PLC and Globe (together, the “Issuers”) co-issued $350,000 thousand aggregate principal amount of 9.375% senior unsecured notes due March 1, 2022 (the “Notes”). On March 27, 2021, Ferroglobe PLC and Globe and certain other members of the group entered into the Lock-Up Agreement with the Ad Hoc Group Noteholders, Grupo VM and affiliates of Tyrus Capital that set forth a plan to implement a debt restructuring plan. On July 30, 2021, the Group completed the exchange of 98.588% of the 9 9 ( Notes not exchanged (the “Stub Notes”) were repaid on March 1, 2022. As of December 31, 2022, Ferroglobe PLC only has long-term obligations related to intercompany loans. These main long- term obligations are the following: - - - Contingencies and guarantees Ferroglobe PLC is guarantor of the following material obligations: ● $60 million Super Senior Notes issued by Ferroglobe Finance Company (the “UK Issuer”), which were redeemed on July 21, 2022; ● $345 million in Reinstated Notes issued by the UK issuer; ● €34.5 million in indebtedness issued by Grupo FerroAtlántica and Grupo FerroAtlántica de Servicios under the agreement with the Sociedad Estatal de Participaciones Industriales (“SEPI”), a Spanish state-owned industrial holding company affiliated with the Ministry of Finance and Administration; and ● Up to $7 million in connection with the New Markets Tax Credit Program in relation to our Selma, Alabama, plant and due in the event any tax credits under the Program are disallowed or recaptured. As of December 31, 2022, 2021 and 2020, Ferroglobe PLC has no material contingencies. 3.Dividends from subsidiaries For the years ending December 31, 2022, 2021 and 2020 Ferroglobe PLC did not receive cash dividends from its subsidiaries.

Accounting policies (Policies)

Accounting policies (Policies)	12 Months Ended
Accounting policies (Policies)	Dec. 31, 2022
Disclosure of initial application of standards or interpretations [abstract]
Goodwill	4.1 Goodwill Goodwill arising on consolidation represents the excess of the cost of acquisition over the Company’s interest in the fair value of the identifiable assets and liabilities of a subsidiary at the date of acquisition. On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal.
Other intangible assets	4.2 Other intangible assets Other intangible assets are assets without physical substance which can be individually identified either because they are separable or because they arise as a result of a legal or contractual right or of a legal transaction or were developed by the consolidated companies. Only intangible assets whose value can be measured reliably and from which the Company expects to obtain future economic benefits are recognized in the consolidated statement of financial position. Intangible assets are recognized initially at acquisition cost. The aforementioned cost is amortized systematically over each asset’s useful life. At each reporting date, these assets are measured at acquisition cost less accumulated amortization and any accumulated impairment losses, if any. The Company reviews amortization periods and amortization methods for finite-lived intangible assets at the end of each fiscal year. The Company’s main intangible assets are as follows: Development expenditures Development expenditures are capitalized if they meet the requirements of identifiability, reliability in cost measurement and high probability that the assets created will generate economic benefits. Developmental expenditures are amortized on a straight-line basis over the useful lives of the assets, which are between four Expenditures on research activities are recognized as expenses in the years in which they are incurred. Power supply agreements Power supply agreements at rates below market acquired in business combinations are amortized on a straight-line basis over the term in which the agreement is effective. Rights of use Rights of use granted are amortized on a straight-line basis over the term in which the right of use was granted from the date it is considered that use commenced. Rights of use are generally amortized over a period ranging from 10 Computer software Computer software includes the costs incurred in acquiring or developing computer software, including the related installation. Computer software is amortized on a straight-line basis over two Computer system maintenance costs are recognized as expenses in the years in which they are incurred. Other intangible assets Other intangible assets include: ● Supply agreements which are amortized in accordance with their estimated useful lives (see Note 8). ● CO 2 emissions allowances (“rights held emit greenhouse gasses”) which are not amortized, but rather are expensed when used (see Note 4.22).
Property, plant and equipment	4.3 Property, plant and equipment Cost Property, plant and equipment for our own use are initially recognized at acquisition or production cost and are subsequently measured at acquisition or production cost less accumulated depreciation and any accumulated impairment losses. When the construction and start-up of non-current assets require a substantial period of time, the borrowing costs incurred over that period are capitalized. In 2022, 2021 and 2020 no material borrowing cost were capitalized. The costs of expansion, modernization or improvements leading to increased productivity, capacity or efficiency or to a lengthening of the useful lives of the assets are capitalized. Repair, upkeep and maintenance expenses are recognized in the consolidated income statement for the year in which they are incurred. Mineral reserves are recorded at fair value at the date of acquisition. Depletion of mineral reserves is computed using the units-of-production method utilizing only proven and probable reserves (as adjusted for recoverability factors) in the depletion base. Property, plant and equipment in the course of construction are transferred to property, plant and equipment in use at the end of the related development period. Depreciation The Company depreciates property, plant and equipment using the straight-line method at annual rates based on the following years of estimated useful life: Years of Estimated Useful Life Properties for own use 25-50 Plant and machinery 8-20 Tools 12.5-15 Furniture and fixtures 10-15 Computer hardware 4-8 Transport equipment 10-15 Land included within property, plant and equipment is considered to be an asset with an indefinite useful life and, as such, is not depreciated, but rather it is tested for impairment annually. The Company reviews residual value, useful lives, and the depreciation method for property, plant and equipment annually. Environment The costs arising from the activities aimed at protecting and improving the environment are accounted for as an expense for the year in which they are incurred. When they represent additions to property, plant and equipment aimed at minimizing the environmental impact and protecting and enhancing the environment, they are capitalized to non-current assets.
Impairment of property, plant and equipment, intangible assets, right-of-use assets and goodwill	4.4 Impairment of property, plant and equipment, intangible assets, right-of-use assets and goodwill In order to ascertain whether its assets have become impaired, the Company compares their carrying amount with their recoverable amount; goodwill - the CGUs are tested for impairment annually, and whenever there is an indication of impairment and property, plant and equipment. Where the asset itself does not generate cash flows that are independent from other assets, the Company estimates the recoverable amount of the cash-generating unit to which the asset belongs. Recoverable amount is the higher of: ● Fair value less costs of disposal: the price that would be agreed upon by two independent parties, less estimated costs to sell, and ● Value in use: the present value of the future cash flows that are expected to be derived from continuing use of the asset and from its ultimate disposal at the end of its useful life, discounted at a rate which reflects the time value of money and the risks specific to the business to which the asset belongs. If the recoverable amount of an asset (or cash-generating unit) is less than its carrying amount, the carrying amount of the asset is reduced to its recoverable amount, and an impairment loss is recognized as an expense under “Impairment losses” in the consolidated income statement. Where an impairment loss subsequently reverses (not permitted in the case of goodwill), the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset in prior years. A reversal of an impairment loss is recognized as “Impairment (loss)/gain” in the consolidated income statement. The basis for depreciation is the carrying amount of the assets, deemed to be the acquisition cost less any accumulated impairment losses.
Financial instruments	4.5 Financial instruments Financial assets and financial liabilities are recognized in the Company’s statement of financial position when the Company becomes a party to the contractual provisions of the instrument. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition or issue of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through profit or loss) are added to or deducted from the fair value of the financial assets or financial liabilities, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through profit or loss are recognized immediately in profit or loss. Financial assets The Company classifies its financial assets into the following categories: those to be measured subsequently at fair value (either through other comprehensive income or through profit or loss) and those to be measured at amortized cost. The classification depends on the entity’s business model for managing the financial assets and the contractual terms of the cash flows. Financial assets measured at amortized cost Financial assets are classified as measured at amortized cost when they are held in a business model whose objective is to collect contractual cash flows and the contractual terms of the financial asset give rise on specific dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Such assets are carried at amortized cost using the effective interest method if the time value of money is significant. Gains and losses are recognized in profit or loss when the assets are derecognized or impaired and when interest is recognized using the effective interest method. This category of financial assets includes trade receivables, receivables from related parties and cash and cash equivalents. Financial assets measured at fair value through other comprehensive income Debt instruments are classified as measured at fair value through other comprehensive income when they are held in a business model whose objective is achieved by both collecting contractual cash flows and selling the financial assets, and the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. All movements in the fair value of these financial assets are taken through other comprehensive income, except for the recognition of impairment gains or losses, interest income calculated using the effective interest method and foreign exchange gains and losses. When the financial asset is derecognized, the cumulative fair value gain or loss previously recognized in other comprehensive income is reclassified to the income statement. Equity instruments are classified as measured at fair value through other comprehensive income if, on initial recognition, the Company makes an irrevocable election to designate the instrument as at fair value through other comprehensive income. The election is made on an instrument-by-instrument basis and is not permitted if the equity investment is held for trading. Fair value gains or losses on revaluation of such equity investments are recognized in other comprehensive income and accumulated in the valuation adjustments reserve. When the equity investment is derecognized, there is no reclassification of fair value gains or losses previously recognized in other comprehensive income to the income statement. Dividends are recognized in the income statement when the right to receive payment is established. Financial assets measured at fair value through profit or loss. Financial assets are classified as measured at fair value through profit or loss when the asset does not meet the criteria to be measured at amortized cost or at fair value through other comprehensive income. Such assets are carried on the balance sheet at fair value with gains or losses recognized in the income statement. Derecognition of financial assets The Company derecognizes a financial asset when: - the rights to receive cash flows from the asset have expired; or - the Company has transferred its rights to receive cash flows from the asset or has assumed an obligation to pay the received cash flows in full without material delay to a third party under a ‘pass-through’ arrangement; and either (a) the Company has transferred substantially all the risks and rewards of the asset, or (b) the Company has neither transferred nor retained substantially all the risks and rewards of the asset, but has transferred control of the asset. On derecognition of a financial asset in its entirety, the difference between the asset’s carrying amount and the sum of the consideration received and receivable is recognized in profit or loss. If the Company retains substantially all of the risks and rewards of ownership of a transferred financial asset, the Company continues to recognize the financial asset and also recognizes a collateralized borrowing for the proceeds received. Impairment of financial assets The expected credit loss model is applied for recognition and measurement of impairments in financial assets measured at amortized cost and debt instruments held at fair value through other comprehensive income. The loss allowance for the financial asset is measured at an amount equal to the 12-month expected credit losses. If the credit risk on the financial asset has increased significantly since initial recognition, the loss allowance for the financial asset is measured at an amount equal to the lifetime expected credit losses. Changes in loss allowances are recognized in profit and loss. For trade receivables, a simplified impairment approach is applied recognizing expected lifetime losses from initial recognition. For this purpose, the Company has established a provision matrix that is based on its historical credit loss experience, adjusted for forward-looking factors specific to the debtors and the economic environment. The Company writes off a financial asset when there is information indicating that the debtor is in severe financial difficulty and there is no realistic prospect of recovery, e.g. when the debtor has been placed under liquidation or has entered into bankruptcy proceedings, or in the case of trade receivables, when the amounts are over two years past due, whichever occurs sooner. Financial assets written off may still be subject to enforcement activities under the Company’s recovery procedures, considering legal advice where appropriate. Any recoveries made are recognized in profit or loss. Financial liabilities The subsequent measurement of financial liabilities depends on their classification, as described below: Financial liabilities measured at fair value through profit or loss Financial liabilities that meet the definition of held for trading are classified as measured at fair value through profit or loss. Such liabilities are carried on the balance sheet at fair value with gains or losses recognized in the income statement. This category includes contingent consideration and derivatives, other than those designated as hedging instruments in an effective hedge. Financial liabilities measured at amortized cost This is the category most relevant to the Company and comprises all other financial liabilities, including bank borrowings, debt instruments, financial loans from government agencies, payables to related parties and trade and other payables. After initial recognition, other financial liabilities are subsequently measured at amortized cost using the effective interest method. Amortized cost is calculated by considering any issue costs and any discount or premium on settlement. Derecognition of financial liabilities The Company derecognizes financial liabilities when, and only when, the Company’s obligations are discharged, cancelled or have expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable is recognized in profit or loss. When the Company exchanges with the existing lender one debt instrument into another one with substantially different terms, such exchange is accounted for as an extinguishment of the original financial liability and the recognition of a new financial liability. Similarly, the Company accounts for substantial modification of terms of an existing liability or part of it as an extinguishment of the original financial liability and the recognition of a new liability. It is assumed that the terms are substantially different if the discounted present value of the cash flows under the new terms, including any fees paid net of any fees received and discounted using the original effective rate is at least 10 per cent different from the discounted present value of the remaining cash flows of the original financial liability. If the modification is not substantial, the difference between the carrying amount of the liability before the modification and the present value of the cash flows after modification are recognized in profit or loss as a modification gain or loss.
Derivative financial instruments and hedging activities	4.6 Derivative financial instruments and hedging activities In order to mitigate the economic effects of exchange rate and interest rate fluctuations to which it is exposed as a result of its business activities, the Company uses derivative financial instruments, such as cross currency swaps and interest rate swaps. The Company’s derivative financial instruments are set out in Note 19 to these consolidated financial statements and the Company’s financial risk management policies are set out in Note 28. Derivatives are initially recognized at fair value at the date a derivative contract is entered into and are subsequently remeasured to their fair value at each balance sheet date. The resulting gain or loss is recognized in profit or loss immediately unless the derivative is designated and effective as a hedging instrument, in which event the timing of the recognition of profit or loss depends on the nature of the hedge relationship. The gain or loss recognized in respect of derivatives that are not designated and effective as a hedging instrument is recognized in the consolidated income statement in the line item financial derivative gain (loss). A derivative with a positive fair value is recognized as a financial asset within the line item other financial assets whereas a derivative with a negative fair value is recognized as a financial liability within the line item other financial liabilities. A derivative is presented as a non-current asset or non-current liability if the remaining maturity of the instrument is more than 12 months and it is not expected to be realized or settled within 12 months. Hedge accounting The Company designates certain derivatives as cash flow hedges. For further details, see Note At the inception of the hedge relationship, the Company documents the relationship between the hedging instrument and the hedged item, along with its risk management objectives and its strategy for undertaking the hedge transaction. Furthermore, at the inception of the hedge and on an ongoing basis, the Company documents whether the hedging instrument is effective in offsetting changes in fair values or cash flows of the hedged item attributable to the hedged risk. The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income. The gain or loss relating to any ineffective portion is recognized immediately in profit or loss and is included in the financial derivative gain (loss) line item. Amounts previously recognized in other comprehensive income and accumulated in equity in the valuation adjustments reserve are reclassified to profit or loss in the periods when the hedged item is recognized in profit or loss, in the same line of the income statement as the recognized hedged item. Hedge accounting is discontinued when the Company revokes the hedging relationship, the hedging instrument expires or is sold, terminated, or exercised, or no longer qualifies for hedge accounting. Any gain or loss recognized in other comprehensive income at that time is accumulated in equity and is recognized when the forecast transaction is ultimately recognized in profit or loss. When a forecast transaction is no longer expected to occur, the gain or loss accumulated in equity is recognized immediately in profit or loss.
Fair value measurement	4.7 Fair value measurement Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either: in the principal market for the asset or liability; or in the absence of a principal market, in the most advantageous market for the asset or liability. The fair value of an asset or a liability is measured using the assumptions that market participants would use when pricing the asset or liability, assuming that market participants act in their economic best interest. The Company uses valuation techniques that are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. All assets and liabilities for which fair value is measured or disclosed in the financial statements are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole: ● Level 1 — Quoted (unadjusted) market prices in active markets for identical assets or liabilities. ● Level 2 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is directly or indirectly observable. ● Level 3 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is unobservable. For those assets and liabilities measured at fair value at the balance sheet date, further information on fair value measurement is provided in Note 29.
Inventories	4.8 Inventories Inventories comprise assets (goods) which: ● Are held for sale in the ordinary course of business (finished goods); or ● Are in the process of production for such sale (work in progress); or ● Will be consumed in the production process or in the rendering of services (raw materials and spare parts). Inventories are stated at the lower of acquisition or production cost and net realizable value. The cost of each inventory item is generally calculated as follows: ● Raw materials, spare parts and other consumables and replacement parts: the lower of weighted average acquisition cost and net realizable value. ● Work in progress, finished goods and semi-finished goods: the lower of production cost (which includes the cost of materials, labor costs, direct and indirect manufacturing expenses) or net realizable value in the market. Obsolete, defective or slow-moving inventories have been reduced to net realizable value. Net realizable value is the estimated selling price less all the estimated costs of selling and distribution. The amount of any write-down of inventories (as a result of damage, obsolescence or decrease in the selling price) to their net realizable value and all losses of inventories are recognized as expenses in the year in which the write-down or loss occurs. Any subsequent reversals are recognized as income in the year in which they arise. The consumption of inventories is recognized as an expense in “Raw Materials and energy consumption for production” in the consolidated income statement in the period in which the revenue from their sale is recognized.
Raw materials and energy consumption for production	4.9 Raw materials and energy consumption for production Raw materials and energy consumption for production comprise raw materials, energy, other direct costs, inventory write-downs and changes in inventory.
Cash and cash equivalents	4.10 Cash and cash equivalents The Company classifies under “Cash and cash equivalents” any liquid financial assets, such as for example cash on hand and at banks, deposits and liquid investments, that can be converted into known amounts of cash within three months and are subject to an insignificant risk of changes in value.
Restricted cash and cash equivalents	4.11 Restricted cash and cash equivalents The Company classifies under “restricted cash and cash equivalents” any liquid financial assets, which meet the definition of cash and cash equivalents but the use or withdrawal is restricted by financial agreements. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements and/or contracts entered into with others; however, time deposits and short-term certificates of deposit are not included in legally restricted deposits. In cases where compensating balance arrangements exist but are not agreements which legally restrict the use of cash amounts shown on the balance sheet, those arrangements and the amount involved are disclosed in the notes. Compensating balances that are maintained under an agreement to assure future credit availability are also disclosed in the notes. As discussed in Note 31, certain of the Company´s credit agreements restrict the transfer of assets in the form of loans or dividends to other affiliates. The amount of cash and cash equivalents in subsidiaries subject to such restrictions amounted to $253,085 as of December 31, 2022, and is not presented as Restricted cash and equivalents in the balance sheet because it can be withdrawn or used except for transfers to affiliates.
Provisions and contingencies	4.12 Provisions and contingencies When preparing the consolidated financial statements, the Parent’s directors made a distinction between: ● Provisions: present obligations, either legal, contractual, constructive or assumed by the Company, arising from past events, the settlement of which is expected to give rise to an outflow of economic benefits the amount or timing of which are uncertain; and ● Contingent liabilities: possible obligations that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more future events not wholly within the control of the Company, or present obligations arising from past events the amount of which cannot be estimated reliably or whose settlement is not likely to give rise to an outflow of economic benefits. ● Contingent assets: possible assets that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within the control of the entity. The consolidated financial statements include all the material provisions with respect to which it is considered that it is probable that the obligation will have to be settled. Contingent liabilities are not recognized in the consolidated financial statements, but rather are disclosed, as required by IAS 37 (see Note Provisions are classified as current or non-current based on the estimated period of time in which the obligations covered by them will have to be met. They are recognized when the liability or obligation giving rise to the indemnity or payment arises, to the extent that its amount can be estimated reliably. “Provisions” includes the provisions for pension and similar obligations assumed; provisions for contingencies and charges, such as for example those of an environmental nature and those arising from litigation in progress or from outstanding indemnity payments or obligations, and collateral and other similar guarantees provided by the Company; and provisions for medium- and long- term employee incentives. Contingent assets are not recognized, but are disclosed where an inflow of economic benefits is probable. If it has become virtually certain that an inflow of economic benefits will arise, the asset and the related income are recognized in the financial statements in the period in which the change occurs. Defined contribution plans Certain employees have defined contribution plans which conform to the Spanish Pension Plans and Funds Law. The main features of these plans are as follows: ● They are mixed plans covering the benefits for retirement, disability and death of the participants. ● The sponsor undertakes to make monthly contributions of certain percentages of current employees’ salaries to external pension funds. The annual cost of these plans is recognized under Staff costs in the consolidated income statement. Defined benefit plans IAS 19, Employee Benefits requires defined benefit plans to be accounted for: ● Using actuarial techniques to make a reliable estimate of the amount of benefits that employees have earned in return for their service in the current and prior periods. ● Discounting those benefits in order to determine the present value of the obligation. ● Determining the fair value of any plan assets. ● Determining the total amount of actuarial gains and losses and the amount of those actuarial gains and losses that must be recognized. The amount recognized as a benefit liability arising from a defined benefit plan is the total net sum of: ● The present value of the obligations. ● Minus the fair value of plan assets (if any) out of which the obligations are to be settled directly. The Company recognizes provisions for these benefits as the related rights vest and on the basis of actuarial studies. These amounts are recognized under “Provisions” in the consolidated statement of financial position, on the basis of their expected due payment dates. Environmental provisions Provisions for environmental obligations are estimated by analyzing each case separately and observing the relevant legal provisions. The best possible estimate is made on the basis of the information available and a provision is recognized provided that the aforementioned information suggests that it is probable that the loss or expense will arise and it can be estimated in a sufficiently reliable manner. The balance of provisions and disclosures disclosed in Notes 15 and 24 reflects management’s best estimation of the potential exposure as of the date of preparation of these financial statements.
Leases	4.13 Leases The Company assesses if a contract is or contains a lease at inception of the contract. A contract is or contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use asset and a lease liability at the commencement date. The lease liability is initially measured at the present value of the minimum future lease payments, discounted using the interest rate implicit in the lease, or, if not readily determinable, the incremental borrowing rate. Lease payments include fixed payments, variable payments that depend on an index or rate, as well as any extension or purchase options, if the Company is reasonably certain to exercise these options. The lease liability is subsequently measured at amortized cost using the effective interest method and remeasured with a corresponding adjustment to the related right-of-use asset when there is a change in future lease payments. The right-of-use asset comprises, at inception, the initial lease liability, any initial direct costs and, when applicable, the obligations to refurbish the asset, less any incentives granted by the lessors. The right-of-use asset is subsequently depreciated, on a straight-line basis, over the lease term or, if the lease transfers the ownership of the underlying asset to the Company at the end of the lease term or, if the cost of the right-of-use asset reflects that the lessee will exercise a purchase option, over the estimated useful life of the underlying asset. Right-of-use assets are also subject to testing for impairment if there is an indicator for impairment. Variable lease payments not included in the measurement of the lease liabilities are expensed to the consolidated income statement in the period in which the events or conditions which trigger those payments occur. In the statement of financial position, right-of-use assets and lease liabilities are classified, respectively, as part of property, plant and equipment and current and non-current lease liabilities.
Current assets and liabilities	4.14 Current assets and liabilities In general, assets and liabilities are classified as current or non-current based on the Company’s operating cycle. However, in view of the diverse nature of the activities carried on by the Company, in which the duration of the operating cycle differs from one activity to the next, in general assets and liabilities expected to be settled or fall due within twelve months from the end of the reporting period are classified as current items and those which fall due or will be settled within more than twelve months are classified as non-current items.
Income taxes	4.15 Income taxes Income tax expense represents the sum of current tax and deferred tax. Income tax is recognized in the income statement except to the extent that it relates to items recognized in other comprehensive income or directly in equity, in which case the related tax is recognized in other comprehensive income or directly in equity. The current income tax expense is based on domestic and international statutory income tax rates in the tax jurisdictions where the Company operates related to taxable profit for the period. The taxable profit differs from net profit as reported in the income statement because it is determined in accordance with the rules established by the applicable tax authorities which includes temporary differences, permanent differences, and available credits and incentives. The Company’s deferred tax assets and liabilities are provided on temporary differences at the balance sheet date between financial reporting and the tax basis of assets and liabilities, then applying enacted tax rates expected to be in effect for the year in which the differences are expected to reverse. Deferred tax assets are recognized for deductible temporary differences, carry-forward of unused tax credits and losses, to the extent that it is probable, that taxable profit will be available against which the deductible temporary difference and carryforwards of unused tax credits and losses can be utilized. The deferred tax assets and liabilities that have been recognized are reassessed at the end of each closing period in order to ascertain whether they still exist, and adjustments are made on the basis of the findings of the analyses performed. Income tax payable is the result of applying the relevant tax rate in force to each tax-paying entity, in accordance with the tax laws in force in the country in which the entity is registered. Additionally, tax deductions and credits are available to certain entities, primarily relating to inter-company trades and tax treaties between various countries to prevent double taxation. Income tax expense is recognized in the consolidated income statement, except to the extent that it arises from a transaction which is recognized directly to “consolidated equity”, in which case the tax is recognized directly to “consolidated equity.” Deferred tax assets and liabilities are offset only when there is a legally enforceable right to set off current tax assets against current tax liabilities and when the deferred tax assets and liabilities relate to income taxes levied by the same taxation authority or either the same taxable entity or different taxable entities where there is an intention to settle the current tax assets and liabilities on a net basis or to realize the assets and settle the liabilities simultaneously.
Foreign currency transactions	4.16 Foreign currency transactions Foreign currency transactions are initially recognized in the functional currency of the subsidiary by applying the exchange rates prevailing at the date of the transaction. Subsequently, at each reporting date, monetary assets and liabilities denominated in foreign currencies are translated to dollars at the rates prevailing on that date. Any exchange differences arising on settlement or translation at the closing rates of monetary items are recognized in the consolidated income statement for the year. Note 4.6 details the Company’s accounting policies for derivative financial instruments. Also, Note 28 to these consolidated financial statements details the financial risk policies of Ferroglobe.
Revenue recognition	4.17 Revenue recognition The Company recognizes sales revenue related to the transfer of promised goods or services when control of the goods or services passes to the customer. The amount of revenue recognized reflects the consideration to which the Company is or expects to be entitled in exchange for those goods or services. In the Company’s electrometallurgy business, revenue is principally generated from the sale of goods, including silicon metal and silicon- and manganese-based specialty alloys. The Company mainly satisfies its performance obligations at a point in time; the amounts of revenue recognized relating to performance obligations satisfied over time are not significant. The point in time at which control is transferred to the buyer is determined based on the agreed delivery terms, which follow Incoterms 2022 issued by International Chamber of Commerce. In most instances, control passes and sales revenue is recognized when the product is delivered to the vessel or vehicle on which it will be transported, the destination port or the customer’s premises. There may be circumstances when judgment is required based on the five indicators of control below. ● The customer has the significant risks and rewards of ownership and has the ability to direct the use of, and obtain substantially all of the remaining benefits from, the goods or service. ● The customer has a present obligation to pay in accordance with the terms of the sales contract. ● The customer has accepted the asset. Sales revenue may be subject to adjustment if the product specification does not conform to the terms specified in the sales contract, but this does not impact the passing of control. Specification adjustments have been immaterial historically. ● The customer has legal title to the asset. The Company may retain legal title until payment is received but this is for credit risk purposes only. ● The customer has physical possession of the asset. This indicator may be less important as the customer may obtain control of an asset prior to obtaining physical possession, which may be the case for goods in transit. Where the Company sells on ‘C’ terms (e.g., CIF, CIP, CFR and CPT), the Company is responsible (acts as principal) for providing shipping services and, in some instances, insurance after the date at which control of goods passes to the customer at the loading point. The Company therefore has separate performance obligations for freight and insurance services that are provided solely to facilitate sale of the commodities it produces. Revenue attributable to freight and insurance services is not usually material. Where the Company sells on ‘D’ terms (e.g., DDP, DAP and DAT), the Company arranges and pays for the carriage and retains the risk of the goods until delivery at an agreed destination, where ownership and control is transferred. Where the Company sells on ‘F’ terms (e.g., FCA and FOB), the customer arranges and pays for the main transportation. Risk and control are transferred to the customer when the goods are handed to the carrier engaged by the customer. The Company’s products are sold to customers under contracts which vary in tenure and pricing mechanisms. The majority of pricing terms are either fixed or index-based for monthly, quarterly or annual periods, with a smaller proportion of volumes being sold on the spot market. Within each sales contract, each unit of product shipped is a separate performance obligation. Revenue is generally recognized at the contracted price as this reflects the stand-alone selling price. Sales revenue excludes any applicable sales taxes. Physical exchanges with counterparties in the same line of business in order to facilitate sales to customers are reported net, as are sales and purchases made with a common counterparty, as part of an arrangement similar to a physical exchange. Revenue from the energy business is based on the power generated and put on the market at regulated prices and is recognized when the energy produced is transferred to the power network. Interest income is recognized as the interest accrues using the effective interest rate, the rate that exactly discounts estimated future cash receipts through the expected life of the financial instrument to the net carrying amount of the financial asset. Dividend income from investments is recognized when the shareholders’ right to receive the payment is established.
Expense recognition	4.18 Expense recognition Expenses are recognized on an accrual basis, i.e. when the actual flow of the related goods and services occurs, regardless of when the resulting monetary or financial flow arises. An expense is recognized in the consolidated income statement when there is a decrease in the future economic benefits related to a reduction of an asset, or an increase in a liability, which can be measured reliably. This means that an expense is recognized simultaneously with the recognition of the increase in a liability or the reduction of an asset. Additionally, an expense is recognized immediately in the consolidated income statement when a disbursement does not give rise to future economic benefits or when the requirements for recognition as an asset are not met. Also, an expense is recognized when a liability is incurred and no asset is recognized, as in the case of a liability relating to a guarantee.
Grants	4.19 Grants Government grants are recognized where there is reasonable assurance that the grant will be received and all attached conditions will be complied with. When the grant relates to an expense item, it is recognized as income on a systematic basis over the periods that the related costs, for which it is intended to compensate, are expensed. When the grant relates to an asset, it is recognized as income in equal amounts over the expected useful life of the related asset.
Termination benefits	4.20 Termination benefits Under current labour legislation, the Company is required to pay termination benefits to employees whose employment relationship is terminated under certain conditions. The cost of providing employee benefits is recognized in the period in which the benefit is earned by the employee, rather than when it is paid or payable.
CO2 emission allowances	4.21 CO2 emission allowances The Company recognizes emission rights (allowances) received, whether allocated by government or purchased, as intangible assets. The intangible asset recognized is initially measured at fair value, being the consideration paid (if purchased on the open market) or the current market value (if granted for less than fair value). When allowances are granted for less than fair value, the difference between the fair value and the nominal amount paid is recognized as a government grant. The grant is initially recognized as deferred income in the statement of financial position and subsequently recognized as “other operating income” on a systematic basis on the proportion of the CO2 emitted over total CO2 expected to be emitted for the compliance period. In the case that a better estimate of the expected CO2 emissions for the compliance period is available, the deferred income to be recognized in the statement of financial position is adjusted prospectively. As the Company emits CO2, it recognizes a provision for its obligation to deliver the CO2 allowances at the end of the compliance period. The provision is remeasured and recorded as an expense at the end of each reporting period at historical cost for the emission rights (allowances) received and at acquisition cost for the CO2 purchased and at fair value for the CO2 pending to be purchased. Intangible assets recognized for emissions allowances are not amortized and remain valued at historical cost until either sold or surrendered in satisfaction of the Company’s obligation to deliver the allowances to the relevant authority. Sale of emission rights In those cases that it is decided to sell some or even all of its rights in the expectation of later buying rights equal to its actual emissions, the accounting will be as follows. The emission rights sold would be derecognized from the balance sheet against the cash received. In those cases, where the price per emission right is different to the fair value per emission right at the time they were granted, a gain or a loss on the disposal of assets will be recognized. The deferred income originally recognized for the free emission rights granted at the beginning of the compliance period that still remain in the balance sheet at the time of sale, will continue to be amortized over the remaining compliance period.
Share-based compensation	4.22 Share-based compensation The Company recognizes share-based compensation expense based on the estimated grant date fair value of share-based awards using a Black-Scholes option pricing model. Prior to vesting, cumulative compensation cost equals the proportionate amount of the award earned to date. The Company has elected to treat each award as a single award and recognize compensation cost on a straight-line basis over the requisite service period of the entire award. If the terms of an award are modified in a manner that affects both the fair value and vesting of the award, the total amount of remaining unrecognized compensation cost (based on the grant-date fair value) and the incremental fair value of the modified award are recognized over the amended vesting period.
Assets and disposal groups classified as held for sale, liabilities associated with assets held for sale and discontinued operations	4.23 Assets and disposal groups classified as held for sale, liabilities associated with assets held for sale and discontinued operations Assets and disposal groups classified as held for sale include the carrying amount of individual items, disposal groups or items forming part of a business unit earmarked for disposal (discontinued operations), whose sale in their present condition is highly likely to be completed within one year from the reporting date. Therefore, the carrying amount of these items, which may or may not be of a financial nature, will likely be recovered through the proceeds from their disposal. Liabilities associated with non-current assets held for sale include the balances payable arising from the assets held for sale or disposal groups and from discontinued operations. Assets and disposal groups classified as held for sale are measured at the lower of fair value less costs to sell and their carrying amount at the date of classification in this category. Non-Current assets held for sale are not depreciated as long as they remain in this category.
Consolidated statement of cash flows	4.24 Consolidated statement of cash flows The following terms are used in the consolidated statement of cash flows, prepared using the indirect method, with the meanings specified as follows: 1. Cash flows: inflows and outflows of cash and cash equivalents, which are short-term, highly liquid investments that are subject to an insignificant risk of changes in value. 2. Operating activities: activities constituting the object of the subsidiaries forming part of the consolidated Company and other activities that are not investing or financing activities. 3. Investing activities: the acquisition and disposal of long-term assets and other investments not included in cash and cash equivalents. 4. Financing activities: activities that result in changes in the size and composition of the equity and borrowings of the Company that are not operating or investing activities. Interest payments and principal payments are presented separately.

Organization and Subsidiaries (

Organization and Subsidiaries (Tables)	12 Months Ended
Organization and Subsidiaries (Tables)	Dec. 31, 2022
Disclosure Of Organization and Subsidiaries [Abstract]
Schedule of subsidiaries by business activity	Percentage of Ownership Direct Total Reporting Segment Registered Alabama Sand and Gravel, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Sales Corporation, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Core Metals Group Holdings, LLC — 100.0 North America – Silicon Alloys Delaware - USA Core Metals Group, LLC — 100.0 North America – Silicon Alloys Delaware - USA ECPI, Inc. — 100.0 North America – Silicon Alloys Delaware - USA Gatliff Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe BG, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Financial LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Holdings, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metallurgical Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metals Enterprises, Inc. — 100.0 North America – Silicon Alloys Delaware - USA GSM Alloys I, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Alloys II, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Enterprises Holdings, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Enterprises, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Sales, Inc. — 100.0 North America – Silicon Metal Delaware - USA Laurel Ford Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA LF Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Metallurgical Process Materials, LLC — 100.0 North America – Silicon Alloys Delaware - USA Norchem, Inc. — 100.0 North America – Silicon Metal and Alloys Florida - USA QSIP Canada ULC — 100.0 North America – Silicon Metal Canada Quebec Silicon General Partner — 51.0 North America – Silicon Metal Canada Quebec Silicon Limited Partnership — 51.0 North America – Silicon Metal Canada Tennessee Alloys Company, LLC — 100.0 North America – Silicon Alloys Delaware - USA West Virginia Alloys, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA WVA Manufacturing, LLC — 51.0 North America – Silicon Metal Delaware - USA Cuarzos Industriales, S.A.U. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Ferroatlántica del Cinca, S.L. — 99.9 Europe – Manganese Madrid - Spain Ferroglobe Mangan Norge A.S. — 100.0 Europe – Manganese Norway Ferroglobe Manganese France S.A.S. — 100.0 Europe – Manganese France FerroPem, S.A.S. — 100.0 Europe – Silicon Metal and Alloys France Grupo FerroAtlántica, S.A.U. — 100.0 Europe – Manganese and Silicon Metal Madrid - Spain Grupo FerroAtlántica de Servicios, S.L.U. — 100.0 Other segments Madrid - Spain Kintuck (France) S.A.S. — 100.0 Europe – Manganese France Kintuck A.S. — 100.0 Europe – Manganese Norway Rocas, Arcillas y Minerales, S.A. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Rebone Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Smelters (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Technology (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys South Africa Thaba Chueu Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Cuarzos Industriales de Venezuela, S.A. — 100.0 Other segments Venezuela Emix, S.A.S. — 100.0 Other segments France Ferroatlántica de México, S.A. de C.V. — 100.0 Other segments Nueva León - Mexico Ferroatlántica de Venezuela (FerroVen), S.A. — 99.9 Other segments Venezuela Ferroatlántica Deutschland, GmbH — 100.0 Other segments Germany Ferroatlántica do Brasil Mineraçao Ltda. — 70.0 Other segments Brazil Ferroglobe Holding Company, LTD 100 100.0 Other segments United Kingdom Ferroglobe Finance Company, PLC — 100.0 Other segments United Kingdom FerroManganese Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferroquartz Holdings, Ltd. (Hong Kong) — 100.0 Other segments Hong Kong FerroQuartz Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferrosolar OPCO Group S.L. — 100.0 Other segments Spain Ferrosolar R&D S.L. — 50.0 Other segments Spain FerroTambao, S.A.R.L. — 90.0 Other segments Burkina Faso Globe Metales S.R.L. — 100.0 Other segments Argentina Globe Specialty Metals, Inc. — 100.0 Other segments Delaware - USA GSM Financial, Inc. — 100.0 Other segments Delaware - USA GSM Netherlands, B.V. — 100.0 Other segments Netherlands Hidroelectricité de Saint Beron, S.A.S. — 100.0 Other segments France Mangshi FerroAtlántica Mining Industry Service Company Limited — 100.0 Other segments Mangshi, Dehong -Yunnan -China Ningxia Yonvey Coal Industrial Co., Ltd. — 98.0 Other segments China Photosil Industries, S.A.S. — 100.0 Other segments France Ferroglobe Innovation, S.L.U — 100.0 Other segments Spain Solsil, Inc. — 92.4 Other segments Delaware - USA Ultracore Energy S.A. — 100.0 Other segments Argentina 2021 Subsidiaries Percentage of Ownership Direct Total Reporting Segment Registered Alabama Sand and Gravel, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Alden Sales Corporation, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Resources, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA ARL Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Core Metals Group Holdings, LLC — 100.0 North America – Silicon Alloys Delaware - USA Core Metals Group, LLC — 100.0 North America – Silicon Alloys Delaware - USA ECPI, Inc. — 100.0 North America – Silicon Alloys Delaware - USA Gatliff Services, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe BG, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Financial LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GBG Holdings, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metallurgical Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Globe Metals Enterprises, Inc. — 100.0 North America – Silicon Alloys Delaware - USA GSM Alloys I, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Alloys II, Inc. — 100.0 North America – Silicon Metal Delaware - USA GSM Enterprises Holdings, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Enterprises, LLC — 100.0 North America – Silicon Metal and Alloys Delaware - USA GSM Sales, Inc. — 100.0 North America – Silicon Metal Delaware - USA Laurel Ford Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA LF Resources, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA Metallurgical Process Materials, LLC — 100.0 North America – Silicon Alloys Delaware - USA Norchem, Inc. — 100.0 North America – Silicon Metal and Alloys Florida - USA QSIP Canada ULC — 100.0 North America – Silicon Metal Canada Quebec Silicon General Partner — 51.0 North America – Silicon Metal Canada Quebec Silicon Limited Partnership — 51.0 North America – Silicon Metal Canada Tennessee Alloys Company, LLC — 100.0 North America – Silicon Alloys Delaware - USA West Virginia Alloys, Inc. — 100.0 North America – Silicon Metal and Alloys Delaware - USA WVA Manufacturing, LLC — 51.0 North America – Silicon Metal Delaware - USA Cuarzos Industriales, S.A.U. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Ferroatlántica del Cinca, S.L. — 99.9 Europe – Manganese Madrid - Spain Ferroatlántica Participaciones, S.L.U. — 100.0 Other segments Madrid - Spain Ferroglobe Mangan Norge A.S. — 100.0 Europe – Manganese Norway Ferroglobe Manganese France S.A.S. — 100.0 Europe – Manganese France FerroPem, S.A.S. — 100.0 Europe – Silicon Metal and Alloys France Grupo FerroAtlántica, S.A.U. — 100.0 Europe – Manganese and Silicon Metal Madrid - Spain Grupo FerroAtlántica de Servicios, S.L.U. — 100.0 Other segments Madrid - Spain Kintuck (France) S.A.S. — 100.0 Europe – Manganese France Kintuck A.S. — 100.0 Europe – Manganese Norway Rocas, Arcillas y Minerales, S.A. — 100.0 Europe – Silicon Metal and Alloys A Coruña - Spain Rebone Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Smelters (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Silicon Technology (Pty.), Ltd. — 100.0 South Africa – Silicon Metal and Alloys South Africa Thaba Chueu Mining (Pty.), Ltd. — 74.0 South Africa – Silicon Metal and Alloys Polokwane - South Africa Cuarzos Indus. de Venezuela (Cuarzoven), S.A. — 100.0 Other segments Venezuela Emix, S.A.S. — 100.0 Other segments France Ferroatlántica de México, S.A. de C.V. — 100.0 Other segments Nueva León - Mexico Ferroatlántica de Venezuela (FerroVen), S.A. — 99.9 Other segments Venezuela Ferroatlántica Deutschland, GmbH — 100.0 Other segments Germany Ferroatlántica do Brasil Mineraçao Ltda. — 70.0 Other segments Brazil Ferroglobe Holding Company, LTD 100 100.0 Other segments United Kingdom Ferroglobe Finance Company, PLC — 100.0 Other segments United Kingdom FerroManganese Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferroquartz Holdings, Ltd. (Hong Kong) — 100.0 Other segments Hong Kong FerroQuartz Mauritania S.A.R.L. — 90.0 Other segments Mauritania Ferrosolar OPCO Group S.L. — 100.0 Other segments Spain Ferrosolar R&D S.L. — 50.0 Other segments Spain FerroTambao, S.A.R.L. — 90.0 Other segments Burkina Faso Globe Argentina Holdco, LLC — 100.0 Other segments Delaware - USA Globe Metales S.R.L. — 100.0 Other segments Argentina Globe Specialty Metals, Inc. 100 100.0 Other segments Delaware - USA GSM Financial, Inc. — 100.0 Other segments Delaware - USA GSM Netherlands, B.V. — 100.0 Other segments Netherlands Hidroelectricité de Saint Beron, S.A.S. — 100.0 Other segments France Mangshi FerroAtlántica Mining Industry Service Company Limited — 100.0 Other segments Mangshi, Dehong -Yunnan -China Ningxia Yonvey Coal Industrial Co., Ltd. — 98.0 Other segments China Photosil Industries, S.A.S. — 100.0 Other segments France Ferroglobe Innovation, S.L.U — 100.0 Other segments Spain Solsil, Inc. — 92.4 Other segments Delaware - USA Ultracore Energy S.A. — 100.0 Other segments Argentina

Accounting policies (Tables)

Accounting policies (Tables)	12 Months Ended
Accounting policies (Tables)	Dec. 31, 2022
Disclosure of initial application of standards or interpretations [abstract]
Schedule of useful lives of property, plant and equipment	Years of Estimated Useful Life Properties for own use 25-50 Plant and machinery 8-20 Tools 12.5-15 Furniture and fixtures 10-15 Computer hardware 4-8 Transport equipment 10-15

Segment reporting (Tables)

Segment reporting (Tables)	12 Months Ended
Segment reporting (Tables)	Dec. 31, 2022
Disclosure of operating segments [abstract]
Schedule of consolidated statements of income and financial position by reportable segment	2022 North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations () Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 671,290 339,414 701,140 536,753 259,419 17,337 122,262 81,560 (131,259) 2,597,916 Raw materials and energy consumption for production (305,545) (68,490) (541,034) (241,936) (139,687) (9,270) (65,373) (46,759) 133,008 (1,285,086) Other operating income 6,464 122 42,882 76,255 23,622 156 66 59,840 (62,051) 147,356 Staff costs (61,378) (41,923) (28,996) (81,175) (50,467) (1,736) (11,652) (37,483) — (314,810) Other operating expense (33,708) (37,859) (111,741) (99,513) (33,265) (2,649) (13,193) (74,626) 60,302 (346,252) Depreciation and amortization charges, operating allowances and write-downs (33,708) (15,135) (13,005) (4,605) (8,086) (748) (5,278) (994) — (81,559) Impairment (loss) gain — — (33,222) — (26,028) 5,357 2,408 (5,514) — (56,999) Net gain due to changes in the value of assets — — — — — — — 349 — 349 (Loss) gain on disposal of non-current assets (522) (126) (189) 230 82 — — 66 — (459) Other (loss) — — 11 — — — — 80 — 91 Operating Profit 242,893 176,003 15,846 186,009 25,590 8,447 29,240 (23,481) — 660,547 () The amounts correspond to transactions between segments that are eliminated in the consolidation process. 2021() North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations () Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 370,109 154,699 476,287 437,533 227,804 12,604 104,591 43,568 (48,287) 1,778,908 Raw materials and energy consumption for production (265,653) (57,663) (326,257) (303,811) (170,073) (8,240) (68,377) (33,445) 48,623 (1,184,896) Other operating income 5,089 296 34,142 48,828 16,924 278 485 49,901 (45,858) 110,085 Staff costs (51,163) (31,300) (33,696) (77,608) (42,679) (1,542) (11,726) (31,203) — (280,917) Other operating expense (22,222) (20,848) (105,290) (105,712) (23,043) (1,904) (11,352) (51,960) 45,522 (296,809) Depreciation and amortization charges, operating allowances and write-downs (40,489) (15,281) (18,634) (7,330) (9,522) (546) (4,535) (991) — (97,328) Impairment (loss) gain — — (376) 14 (455) 288 2,396 (1,730) — 137 Net gain due to changes in the value of assets — — — — — — — 758 — 758 (Loss) gain on disposal of non-current assets (347) 741 — 733 296 — — (37) — 1,386 Other (loss) — — — — — — — — — — Operating (loss) profit (4,676) 30,644 26,176 (7,353) (749) 938 11,482 (25,076) — 31,386 () Our operating segments have been revised in 2022 to reflect the way its chief operating decision maker (“CODM”) is currently managing and viewing the business. Accordingly, the results of 2021 and 2020 have been restated to report results according to the operating segments revised in 2022. (*) The amounts correspond to transactions between segments that are eliminated in the consolidation process. 2020() North America North America Europe Europe Europe South Africa South Africa Adjustments/ Silicon Metal Silicon Alloys Manganese Silicon Metal Silicon Alloys Silicon Metal Silicon Alloys Other segments Eliminations (*) Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Sales 289,485 135,792 240,142 321,632 146,096 17,631 62,941 25,334 (94,619) 1,144,434 Raw materials and energy consumption for production (205,260) (75,597) (204,063) (255,798) (113,332) (12,267) (43,796) (19,518) 94,145 (835,486) Other operating income 2,804 113 9,199 19,971 5,078 127 3 24,587 (28,255) 33,627 Staff costs (48,219) (25,769) (28,337) (52,236) (32,064) (2,497) (8,516) (17,144) — (214,782) Other operating expense (18,990) (15,325) (33,884) (35,415) (16,397) (3,515) (10,583) (26,679) 28,729 (132,059) Depreciation and amortization charges, operating allowances and write-downs (48,691) (12,973) (19,086) (8,900) (10,352) (1,563) (5,578) (1,046) — (108,189) Impairment (loss) gain (26,861) (8,824) 305 — (17,942) (1,899) (6,777) (11,346) — (73,344) Net gain due to changes in the value of assets — — — — — — — 158 — 158 (Loss) gain on disposal of non-current assets (641) (227) 1,154 682 319 — — 5 — 1,292 Other (loss) gain — — 4 — — — — (5) — (1) Operating (loss) (56,373) (2,810) (34,566) (10,064) (38,594) (3,983) (12,306) (25,654) — (184,350) () Our operating segments have been revised in 2022 to reflect the way its chief operating decision maker (“CODM”) is currently managing and viewing the business. Accordingly, the results of 2021 and 2020 have been restated to report results according to the operating segments revised in 2022. (**) The amounts correspond to transactions between segments that are eliminated in the consolidation process.
Schedule of sales by product line	2022 2021 2020 US$'000 US$'000 US$'000 Silicon metal 1,116,193 637,695 463,217 Manganese-based alloys 525,483 469,138 267,469 Ferrosilicon 561,539 337,833 176,447 Other silicon-based alloys 192,409 161,750 126,817 Silica fume 32,290 32,409 25,888 Other 170,002 140,083 84,596 Total 2,597,916 1,778,908 1,144,434
Schedule of non-current assets by geographical area	Year ended December 31, 2022 2021 US$´000 US$´000 United States of America 231,565 230,356 Europe Spain 109,759 146,405 France 133,684 138,842 Other EU Countries 55,835 71,612 Total non-current assets in Europe 299,278 356,859 Rest of the World 133,040 124,839 Total 663,883 712,054

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
Goodwill (Tables)	Dec. 31, 2022
Disclosure of reconciliation of changes in goodwill [abstract]
Schedule of changes in the carrying amount of goodwill	Changes in the carrying amount of goodwill during the years ended December 31, are as follows: January 1, Impairment Exchange December 31, Impairment Exchange December 31, 2021 (Note 26.5) differences 2021 (Note 26.5) differences 2022 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 U.S. Silicon Metal cash generating unit 17,230 — — 17,230 — — 17,230 U.S. Silicon Based Alloys cash generating unit 12,472 — — 12,472 — — 12,472 Total 29,702 — — 29,702 — — 29,702
Schedule of key assumptions used in the determination of recoverable value	2022 2021 2020 U.S. U.S. U.S. Weighted average cost of capital (pre-tax) 14.6 % 13.2 % 10.3 % Long-term growth rate 2.0 % 2.3 % 2.0 % Normalized tax rate 21.0 % 21.0 % 21.0 %

Other intangible assets (Tables

Other intangible assets (Tables)	12 Months Ended
Other intangible assets (Tables)	Dec. 31, 2022
Disclosure of detailed information about intangible assets [abstract]
Schedule of changes in the carrying amount of other intangible assets	Other Accumulated Development Power Supply Computer Intangible Depreciation Impairment Expenditure Agreements Rights of Use Software Assets (Note 26.3) (Note 26.5) Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 54,874 37,836 17,049 5,249 18,872 (93,042) (20,082) 20,756 Additions 1,040 — 10 — 139,180 (7,241) (1,153) 131,836 Disposals — — (3,558) (72) (51,796) 563 3,072 (51,791) Exchange differences (4,216) — (132) (87) (540) 3,580 1,236 (159) Business disposal — — — — — — — — Balance at December 31, 2021 51,698 37,836 13,369 5,090 105,716 (96,140) (16,927) 100,642 Additions 910 — 23 522 113,159 (725) — 113,889 Disposals — — — (20) (96,869) 20 — (96,869) Exchange differences (2,914) — (153) (62) (6,102) 2,536 830 (5,865) Business disposal — — — — — — — — Balance at December 31, 2022 49,694 37,836 13,239 5,530 115,904 (94,309) (16,097) 111,797

Property, plant and equipment (

Property, plant and equipment (Tables)	12 Months Ended
Property, plant and equipment (Tables)	Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [abstract]
Schedule of property, plant and equipment, net of related accumulated depreciation and impairment	Advances and Property, Plant Other Items of Other Fixtures, and Equipment Property, Other Items Other Items Land and Plant and Tools and in the Course of Mineral Plant and of Leased of Leased Accumulated Buildings Machinery Furniture Construction Reserves Equipment Land and Plant and Depreciation Impairment Total Buildings machinery (Note 26.3) (Note 26.5) US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 208,025 1,331,585 8,422 124,029 59,325 33,188 17,588 24,446 (995,507) (191,066) 620,034 Additions 166 6,054 199 33,409 — — 576 4,113 (90,087) 1,663 (43,907) Disposals and other (1,131) (106,295) (618) (9,374) — (55) — — 73,601 39,972 (3,900) Transfers from/(to) other accounts 65 21,883 112 (23,621) — (20) — 730 867 (17) (1) Exchange differences (9,911) (50,603) (636) (10,481) (306) 476 (1,008) (1,527) 49,048 7,636 (17,312) Balance at December 31, 2021 197,214 1,202,624 7,479 113,962 59,019 33,589 17,156 27,762 (962,078) (141,811) 554,914 Additions 3,170 15,329 2,883 59,532 131 4,714 4,624 (80,834) (56,999) (47,450) Disposals and other — (18,544) (122) (595) — — — — 17,685 (90) (1,666) Transfers from/(to) other accounts 505 28,295 (349) (33,485) — 1,212 — — 3,822 — — Exchange differences (7,291) (48,278) (731) (6,021) (215) (725) (625) (1,028) 42,157 4,273 (18,484) Transfer to assets and disposal groups classified as held for sale (see Note 30) (18,108) (56,571) (470) (320) — — — — 56,297 18,105 (1,067) Balance at December 31, 2022 175,490 1,122,855 8,690 133,073 58,804 34,207 21,245 31,358 (922,951) (176,522) 486,247

Financial assets and other re_2

Financial assets and other receivables (Tables)	12 Months Ended
Financial assets and other receivables (Tables)	Dec. 31, 2022
Financial assets and other receivables
Schedule of classification financial assets	2022 classification Note Amortized cost Fair value through profit or loss - mandatorily measured Fair value through other comprehensive income - designated Total US$'000 US$'000 US$'000 US$'000 Other financial assets 10.1 13,253 936 — 14,189 Receivables from related parties 24 4,275 — — 4,275 Trade receivables 10.2 294,491 — — 294,491 Other receivables 10.2 6,039 — — 6,039 Cash and cash equivalents 317,935 — — 317,935 Restricted cash 5,008 — — 5,008 Total financial assets 641,001 936 — 641,937 2021 classification Note Amortized cost Fair value through profit or loss - mandatorily measured Fair value through other comprehensive income - designated Total US$'000 US$'000 US$'000 US$'000 Other financial assets 10.1 3,348 847 — 4,195 Receivables from related parties 24 4,540 — — 4,540 Trade receivables 10.2 321,929 — — 321,929 Other receivables 10.2 6,199 — — 6,199 Cash and cash equivalents 114,391 — — 114,391 Restricted cash 2,272 — — 2,272 Total financial assets 452,679 847 — 453,526
Schedule of restricted cash and cash equivalents	2022 2021 US$'000 US$'000 Cash and cash equivalents 317,935 114,391 Non Current restricted cash presented as Cash 2,133 2,272 Current restricted cash presented as Cash 2,875 — Escrow: Hydro sale 2,133 2,272 NMTC Program 2,875 — Total 322,943 116,663
Schedule of other financial assets	2022 Non- Current Current Total US$'000 US$'000 US$'000 Other financial assets held with third parties: Other financial assets at amortised cost 3,344 — 3,344 Other financial assets 9,909 — 9,909 Equity securities 933 3 936 Total 14,186 3 14,189 2021 Non- Current Current Total US$'000 US$'000 US$'000 Other financial assets held with third parties: Other financial assets at amortised cost 3,348 — 3,348 Equity securities 743 104 847 Total 4,091 104 4,195
Schedule of trade and other receivables	2022 2021 US$'000 US$'000 Trade receivables 295,678 322,935 Less – allowance for doubtful debts (1,187) (1,006) 294,491 321,929 Tax receivables (1) 36,852 25,244 Government grant receivables 88,092 27,701 Other receivables 6,039 6,199 Total 425,474 381,073 (1) “Tax receivables” is primarily related to VAT receivables, which are recovered either by offsetting against VAT payables or are expected to be refunded by the tax authorities in the relevant jurisdictions.
Schedule of changes in the allowance for doubtful debts	Allowance US$'000 Balance at January 1, 2021 1,697 Impairment losses/(reversal) recognized (580) Exchange differences (111) Balance at December 31, 2021 1,006 Impairment losses/(reversal) recognized 361 Amounts used credited to income (124) Exchange differences (56) Balance at December 31, 2022 1,187

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2022
Inventories.
Schedule of Inventory	2022 2021 US$'000 US$'000 Finished goods 169,956 118,080 Raw materials in progress and industrial supplies 266,348 110,965 Other inventories 44,257 42,815 Advances to suppliers 19,519 17,937 Total 500,080 289,797

Other assets (Tables)

Other assets (Tables)	12 Months Ended
Other assets (Tables)	Dec. 31, 2022
Other assets abstract
Schedule of other non current and current assets	2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Guarantees and deposits given 17,492 293 17,785 18,020 299 18,319 Prepayments and accrued income 37 5,925 5,962 27 3,213 3,240 Other assets 689 24,390 25,079 687 4,896 5,583 Total 18,218 30,608 48,826 18,734 8,408 27,142

Equity (Tables)

Equity (Tables)	12 Months Ended
Equity (Tables)	Dec. 31, 2022
Equity [abstract]
Summary of majority shareholders	Number of Shares Percentage of Name Beneficially Owned Outstanding Shares () Grupo Villar Mir, S.A.U. 81,924,822 43.7 % Cooper Creek Partners Management LLC 11,144,337 5.9 % () 187,433,543 ordinary shares were outstanding at 31 December 2022, comprising 188,882,316 shares in issue less 1,448,773 shares held in treasury
Summary of valuation adjustments.	Valuation adjustments comprise the following at December 31: 2022 2021 US$'000 US$'000 Actuarial gains and losses 12,817 5,525 Deferred Tax Income (See Note 23) (2,082) — Total 10,735 5,525
Schedule of changes in non-controlling interests	Balance US$'000 Balance at January 1, 2021 114,504 (Loss) Profit for the year (4,750) Dividends paid to joint venture partner (5,880) Translation differences 166 Other 2,013 Balance at December 31, 2021 106,053 (Loss) Profit for the year 3,514 Dividends paid to joint venture partner (3,430) Translation differences (1,873) Other 2,487 Balance at December 31, 2022 106,751
Summary of financial information for non-controlling interests	2022 2021 2020 WVA QSLP WVA QSLP WVA QSLP US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Statements of Financial Position Non-current assets 78,992 64,291 83,176 63,088 99,235 67,806 Current assets 86,847 53,830 73,883 46,186 65,703 37,095 Non-current liabilities 7,108 18,719 8,654 19,005 8,982 18,529 Current liabilities 53,680 21,201 43,577 14,671 33,378 16,320 Income Statements Sales 187,854 102,865 165,660 89,446 156,995 70,637 Operating profit 8,306 2,897 (4,871) 2,093 (7,503) 3,113 Profit before taxes 8,155 2,195 (5,062) 1,237 (7,503) 2,898 Net (loss) income 3,075 1,015 (3,362) 613 (2,970) 1,666 Cash Flow Statements Cash flows from operating activities (5,934) (10,037) 11,981 8,997 28,683 15,387 Cash flows from investing activities (8,304) (1,525) (3,893) (4,956) (7,977) (5,227) Cash flows from financing activities — 905 — — — — Exchange differences on cash and cash equivalents in foreign currencies — 10 — 31 — 45 Beginning balance of cash and cash equivalents 35,360 16,596 27,272 12,524 6,566 2,319 Ending balance of cash and cash equivalents 21,122 5,949 35,360 16,596 27,272 12,524

Earnings (loss) per ordinary _2

Earnings (loss) per ordinary share (Tables)	12 Months Ended
Earnings (loss) per ordinary share (Tables)	Dec. 31, 2022
Earnings per share [abstract]
Schedule of earnings (loss) per share calculation	2022 2021 2020 US$'000 US$'000 US$'000 Profit (Loss) for the year from continuing operations 443,828 (115,374) (244,359) (Loss) for the year from discontinued operations — — (5,399) Total Profit (Loss) for the year 443,828 (115,374) (249,758) Attributable to the Parent 440,314 (110,624) (246,339) Attributable to non-controlling interests 3,514 (4,750) (3,419) Earnings per share 2022 2021 2020 Numerator: (Loss) attributable to the Parent (US$'000) 440,314 (110,624) (246,339) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) 2.34 (0.63) (1.46) Diluted profit (loss) earnings per ordinary share (US$) 2.32 (0.63) (1.46) Numerator: (Loss) for the year from continuing operations attributable to the Parent (US$'000) 440,314 (110,624) (240,940) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) 2.34 (0.63) (1.42) Diluted profit (loss) earnings per ordinary share (US$) 2.32 (0.63) (1.42) Numerator: (Loss) profit for the year from discontinued operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding 187,815,672 176,508,144 169,269,281 Weighted average dilutive shares outstanding 189,625,195 176,508,144 169,269,281 Basic profit (loss) earnings per ordinary share (US$) — — (0.03) Diluted (loss) earnings per ordinary share (US$) — — (0.03)

Provisions - (Tables)

Provisions - (Tables)	12 Months Ended
Provisions - (Tables)	Dec. 31, 2022
Disclosure of other provisions [line items]
Schedule showing breakdown of non-current and current provisions	2022 2021 Non- Current Current Total Non- Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Provision for pensions 25,546 180 25,726 41,238 180 41,418 Environmental provision 168 1,396 1,564 2,562 1,133 3,695 Provisions for litigation — 23,142 23,142 — 1,952 1,952 Provisions for third-party liability 5,960 — 5,960 8,905 — 8,905 Provisions for C02 emissions allowances 7,956 94,800 102,756 3,033 107,213 110,246 Provision for restructuring cost — 21,539 21,539 — 22,350 22,350 Other provisions 8,040 4,450 12,490 5,220 4,797 10,017 Total 47,670 145,507 193,177 60,958 137,625 198,583
Schedule of changes in provisions	The changes in the various line items of provisions in 2022 and 2021 were as follows: Provisions for Provisions for Provisions for Provisions for Provision for Environmental Litigation Third CO2 Emissions Restructuring Other Pensions Provision in Progress Party Liability Allowances Cost Provisions Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Balance at January 1, 2021 56,586 4,166 1,355 10,759 40,161 2 50,754 163,783 Charges for the year 5,990 28 934 588 97,982 31,838 (12) 137,348 Provisions reversed with a credit to income (1,419) (189) — — (7,830) — (9,419) (18,857) Amounts used (9,911) (1) (233) (535) (18,420) (9,534) (269) (38,903) Provision against equity (6,847) — — (1,081) — — — (7,928) Transfers from/(to) other accounts — (33) — — — 44 (28,437) (28,426) Exchange differences and others (2,981) (276) (104) (826) (1,647) — (2,600) (8,434) Balance at December 31, 2021 41,418 3,695 1,952 8,905 110,246 22,350 10,017 198,583 Charges for the year 1,405 13 22,134 454 114,185 9,092 7,022 154,305 Provisions reversed with a credit to income (3,417) — (48) — (2,435) (591) (890) (7,381) Amounts used (1,181) (345) (798) (2,863) (112,485) (8,012) (2,516) (128,200) Provision against equity (9,394) — — — — — — (9,394) Transfers from/(to) other accounts — (1,510) — — — — (666) (2,176) Exchange differences and others (3,105) (289) (98) (536) (6,755) (1,300) (477) (12,560) Balance at December 31, 2022 25,726 1,564 23,142 5,960 102,756 21,539 12,490 193,177
France
Disclosure of other provisions [line items]
Schedule of changes in obligation	2022 2021 US$'000 US$'000 Obligations at the beginning of year 25,950 34,496 Current service cost (1,159) 1,082 Borrowing costs 310 212 Actuarial differences (4,821) (3,003) Benefits paid (1,181) (995) Exchange differences (1,253) (2,412) Others (1,508) (3,430) Obligations at the end of year 16,338 25,950
Schedule of estimated future benefit payments	The following table reflects the gross benefit payments that are expected to be paid for the benefit plans for the year ended December 31, 2021: 2022 US$'000 2023 1,087 2024 1,279 2025 1,339 2026 1,316 2027 1,349 Years 2028-2032 7,237
South Africa
Disclosure of other provisions [line items]
Schedule of changes in obligation	In this regard, the changes of this provision in 2022 and 2021 were as follows: 2022 2021 US$'000 US$'000 Obligations at beginning of year 3,779 3,461 Current service cost 34 32 Borrowing costs 411 390 Actuarial differences (861) 526 Benefits paid (219) (232) Exchange differences (132) (398) 3,012 3,779
Schedule of breakdown in percentage of plan assets	The breakdown, in percentage, of the plan assets are as follows: 2022 2021 Cash 56.37 % 2.85 % Equity — % 47.21 % Bond 43.63 % 17.32 % Property — % 2.79 % International — % 28.42 % Others — % 1.41 % Total 100.00 % 100.00 %
Schedule showing fair value rollforward of plan assets	2022 2021 US$'000 US$'000 Fair value of plan assets at the beginning of the year 1,706 2,204 Interest income on assets 93 172 Benefits paid (1,619) (775) Actuarial differences (84) 223 Other (2) (118) Fair value of plan assets at the end of the year 94 1,706 Actual return on assets 9 395
Venezuela
Disclosure of other provisions [line items]
Schedule of changes in obligation	In this regards, the changes of this provision in 2022 and 2021 2022 2021 US$'000 US$'000 Obligations at the beginning of year 190 22 Current service cost 66 102 Borrowing costs 748 115 Benefits paid (24) (2) Exchange differences (578) (47) Obligations at the end of year 402 190
Summary of the main actuarial assumptions used to calculate obligations	The summary of the main actuarial assumptions used to calculate the aforementioned obligations is as follows: France South Africa Venezuela 2022 2021 2022 2021 2022 2021 Salary increase 1.60%-6.10% 1.60%-6.10% N/A N/A % 180 % 500 % Discount rate 3.84% 0.75% 8.2-12.8% 10.60-11.60% % 202.4 % 536 % Expected inflation rate 2.20% 1.60% 4.0-7.30% 5.80-7.10% % 200 % 550 % Mortality TGH05/TGF05 TGH05/TGF05 SA 85-90 / PA (90) SA 85-90 / PA (90) GAM 83 GAM 83 Retirement age 65 65 63 63 63-64 63-64
North America
Disclosure of other provisions [line items]
Schedule of changes in obligation	The changes to these obligations in the current year ended December 31, 2022 were as follows: 2022 USA Canada Total Pension Pension Post-retirement Plans Plans Plans US$'000 US$'000 US$'000 US$'000 Obligations at the beginning of year — 25,349 8,569 33,918 Service cost — 162 301 463 Borrowing cost — 773 271 1,044 Actuarial differences — (5,774) (3,040) (8,814) Benefits paid — (870) (162) (1,032) Exchange differences — (1,374) (442) (1,816) Expenses — — — — Plan settlement — — — — Obligations at the end of year — 18,266 5,497 23,763
Schedule of estimated future benefit payments	The following reflects the gross benefit payments that are expected to be paid in future years for the benefit plans for the year ended December 31: Non-pension Postretirement Pension Plans Plans US$'000 US$'000 2023 985 180 2024 1,027 186 2025 1,110 207 2026 1,154 227 2027 1,203 247 Years 2027-2031 6,212 1,535
Schedule of breakdown in percentage of plan assets	2022 2021 Cash — % — % Equity Mutual Funds 31 % 31 % Fixed Income Securities 14 % 14 % Assets held by insurance company 55 % 55 % Total 100 % 100 %
Schedule showing fair value rollforward of plan assets	For the year ended December 31, 2022, the changes in plan assets were as follows: 2022 USA Canada Pension Pension Plans Plans Total US$'000 US$'000 US$'000 Fair value of plan assets at the beginning of the year — 22,417 22,417 Interest income on assets 690 690 Benefits paid (870) (870) Actuarial return on plan assets (3,496) (3,496) Exchange differences (1,269) (1,269) Other 305 305 Plan Settlement — — Fair value of plan assets at the end of the year — 17,777 17,777
Summary of the main actuarial assumptions used to calculate obligations	North America – 2022 North America – 2021 USA Canada USA Canada Pension Pension Postretirement Pension Pension Postretirement Plan Plan Plan Plan Plan Plan Salary increase N/A 2.75% - 3.00% N/A N/A 2.75% - 3.00% N/A Discount rate N/A 5.25% 5.25% N/A 3.21% 3.30% Expected inflation rate N/A N/A N/A N/A N/A N/A Mortality N/A CPM2014-Private Scale CPM-B CPM2014-Private Scale CPM-B N/A CPM2014-Private Scale CPM-B CPM2014-Private Scale CPM-B Retirement age N/A 58-60 58-60 N/A 58-60 58-60
Schedule showing reconciliation of benefit obligations, plan assets and funded status	Benefit Obligations and Funded Status 2022 2021 USA Canada Total USA Canada Total Post- Post- Pension Pension retirement Pension Pension retirement Plans Plans Plans Plans Plans Plans US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Benefit obligation — 18,266 5,497 23,763 — 25,349 8,569 33,918 Fair value of plan assets — (17,777) — (17,777) (14) (22,417) — (22,431) Provision for pensions — 489 5,497 5,986 (14) 2,932 8,569 11,487
FerroPem, S.A.S.
Disclosure of other provisions [line items]
Schedule of estimated future benefit payments	The following table reflects the gross benefit payments that are expected to be paid for the benefit plans for the year ended December 31, 2022: 2022 US$'000 2023 - 2024 529 2025 270 2026 275 2027 282 Years 2028-2032 1458

Bank borrowings - (Tables)

Bank borrowings - (Tables)	12 Months Ended
Bank borrowings - (Tables)	Dec. 31, 2022
Bank borrowings
Schedule of non-current and current bank borrowings	2022 Non-Current Current Limit Amount Amount Total US$'000 US$'000 US$'000 US$'000 Borrowings carried at amortised cost: Credit facilities 100,000 — — — Borrowings from receivable factoring facility 95,994 — 60,976 60,976 Other loans — 15,774 1,083 16,857 Total 15,774 62,059 77,833 2021 Non-Current Current Limit Amount Amount Total US$'000 US$'000 US$'000 US$'000 Borrowings carried at amortised cost: Credit facilities — — — — Borrowings from receivable factoring facility 67,956 — 93,090 93,090 Other loans — 3,670 2,207 5,877 Total 3,670 95,297 98,967
Schedule of non-current and current bank borrowings by currency	2022 Non-Current Current Principal Principal Amount Amount Total US$'000 US$'000 US$'000 Borrowings in US Dollars 13,230 170 13,400 Borrowings in Euros 2,544 61,889 64,433 Total 15,774 62,059 77,833 2021 Non-Current Current Principal Principal Amount Amount Total US$'000 US$'000 US$'000 Borrowings in US Dollars — 1,245 1,245 Borrowings in other currencies 3,670 94,052 97,722 Total 3,670 95,297 98,967
Schedule of non-current bank borrowings by maturity	2022 2023 2026 2029 Total US$'000 US$'000 US$'000 US$'000 Borrowings from supplier factoring facility 60,976 — — 60,976 Other loans 1,083 2,544 13,230 16,857 Total 62,059 2,544 13,230 77,833

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Dec. 31, 2022
Leases
Schedule of lease obligations	Lease obligations as at December 31 are as follows: 2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Other leases 12,942 8,929 21,871 9,968 8,390 18,358 Total 12,942 8,929 21,871 9,968 8,390 18,358
Schedule of non-current payment obligations under leases by maturity	The detail, by maturity, of the non-current payment obligations under leases as of December 31, 2022 is as follows: 2024 2025 2026 2027 2028 and after Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Other leases 4,420 2,930 1,739 1,506 3,643 14,238 Total 4,420 2,930 1,739 1,506 3,643 14,238
Schedule of effect on components of consolidated financial statements	2022 2021 US$'000 US$'000 Balance at January 1, (18,358) (22,536) Additions (14,979) (7,761) Disposals and other 713 517 Interest (1,587) (1,100) Lease payments 11,590 11,285 Exchange differences 750 1,237 Balance at December 31, (21,871) (18,358)
Schedule of leases presented in the statement of financial position	2022 2021 US$'000 US$'000 Non-current assets Leased land and buildings 21,245 17,156 Leased plant and machinery 31,358 27,762 Accumulated depreciation (34,622) (29,855) Non-current liabilities Lease liabilities (12,942) (9,968) Current liabilities Lease liabilities (8,929) (8,390)
Schedule of leases presented in the consolidated income statement	2022 2021 US$'000 US$'000 Depreciation and amortization charges, operating allowances and write-downs Depreciation of right of use assets 4,767 7,357 Finance costs Interest expense on lease liabilities 1,587 1,100 Exchange differences Currency translation losses on lease liabilities 750 1,237 Currency translation gains on right of use assets (812) (1,838)
Schedule of leases presented in the statement of cash flows	2022 2021 US$'000 US$'000 Payments for: Principal 10,003 10,185 Interest 1,587 1,100

Debt instruments (Tables)

Debt instruments (Tables)	12 Months Ended
Debt instruments (Tables)	Dec. 31, 2022
Bank borrowings
Schedule of debt instruments	Debt instruments comprise the following at December 31: 2022 2021 US$'000 US$'000 Notes carried at amortised cost (financial liability) Secured Super Senior Notes — 60,000 Secured Reinstated Senior Notes 349,704 351,003 Unsecured Stub Notes — 4,942 Unamortised issuance costs — (6,064) Accrued coupon interest 13,569 30,416 Notes carried at amortised cost (financial asset) Secured Reinstated Senior Notes 19,048 — Accrued coupon interest 783 — Total net debt instruments 343,442 440,297 Amount due for settlement within 12 months 12,787 35,359 Amount due for settlement after 12 months 330,655 404,938 Total 343,442 440,297

Other financial liabilities (Ta

Other financial liabilities (Tables)	12 Months Ended
Other financial liabilities (Tables)	Dec. 31, 2022
Disclosure of financial liabilities [abstract]
Schedule of other financial liabilities	2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Financial loans from government agencies 38,279 60,382 98,661 4,549 62,464 67,013 Total 38,279 60,382 98,661 4,549 62,464 67,013

Trade and other payables (Table

Trade and other payables (Tables)	12 Months Ended
Trade and other payables (Tables)	Dec. 31, 2022
Trade and other payables.
Schedule of trade and other payables	Trade and other payables comprise the following at December 31: 2022 2021 US$'000 US$'000 Payable to suppliers 219,020 200,999 Trade notes and bills payable 646 5,001 Total 219,666 206,000

Other Obligation (Tables)

Other Obligation (Tables)	12 Months Ended
Other Obligation (Tables)	Dec. 31, 2022
Other Obligations
Summary of other obligation	2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Payable to non-current asset suppliers 183 4,149 4,332 135 2,677 2,812 Guarantees and deposits 12 235 247 14 4,554 4,568 Contingent consideration 3,893 1,945 5,838 13,504 13,023 26,527 Tolling agreement liability 33,414 3,251 36,665 24,429 2,589 27,018 Total 37,502 9,580 47,082 38,082 22,843 60,925
Schedule of sensitivity to changes in assumptions to determine fair value of the contingent consideration	Sensibility on Sensibility on Sensibility on discount rate volumes Mn Spread Contigent consideration Decrease Increase Decrease Increase 40% 60% December 31, 2022 by 10% by 10% by 10% by 10% percentil percentil Fair value contingent consideration 5,838 5,880 5,672 4,398 7,209 1,856 12,795

Other liabilities (Tables)

Other liabilities (Tables)	12 Months Ended
Other liabilities (Tables)	Dec. 31, 2022
Other liabilities
Schedule of other liabilities	2022 2021 Non- Non- Current Current Total Current Current Total US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Remuneration payable — 55,791 55,791 — 36,046 36,046 Tax payables — 37,628 37,628 — 17,613 17,613 Other liabilities 12 11,113 11,125 1,476 20,669 22,145 Total 12 104,532 104,544 1,476 74,328 75,804
Schedule of tax payables	2022 2021 Current Total Current Total US$'000 US$'000 US$'000 US$'000 VAT 20,905 20,905 4,839 4,839 Accrued social security taxes payable 6,195 6,195 6,251 6,251 Personal income tax withholding payable 896 896 820 820 Other 9,632 9,632 5,703 5,703 Total 37,628 37,628 17,613 17,613

Tax matters (Tables)

Tax matters (Tables)	12 Months Ended
Tax matters (Tables)	Dec. 31, 2022
Tax matters
Schedule of income taxes	2022 2021 2020 US$'000 US$'000 US$'000 Consolidated income statement Current income tax Current income tax charge 144,246 5,284 4,307 Adjustments in current income tax in respect of prior years (5,681) — 901 Total 138,565 5,284 5,208 Deferred tax Origination and reversal of temporary differences 15,032 (9,954) (20,961) Impact of tax rate changes 460 — — Write-down of deferred tax assets (1,448) — 37,660 Adjustments in deferred tax in respect of prior years (4,626) 108 32 Total 9,418 (9,846) 16,731 Income tax expense (benefit) 147,983 (4,562) 21,939
Schedule of statutory income tax rate	2022 2021 2020 US$'000 US$'000 US$'000 Accounting profit/(loss) before income tax 602,660 (119,936) (222,420) Adjustment for discontinued operations — — (5,399) Accounting profit/(loss) before income tax 602,660 (119,936) (227,819) At weighted statutory tax rate of 26% (2021: 19% and 2020: 24%) 157,620 (22,650) (54,294) Non-deductible income/ (expenses) (5,920) (11,399) 6,779 Differing territorial tax rates 591 2,603 3,064 Adjustments in respect of prior periods 1,368 — (50) Other items 7,539 27,884 70,123 Elimination of effect of interest in joint ventures (913) (782) 899 Other permanent differences 159 (673) (389) Incentives and deductions (11,740) 88 (2,456) US State taxes (721) 367 (1,737) Income tax expense (benefit) 147,983 (4,562) 21,939
Schedule of changes in deferred tax assets and liabilities	For the year ended December 31,2022: Opening Recognized in Write-down of Exchange Closing Balance P&L OCI Deferred Tax Assets Differences Balance US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Intangible assets (451) (14,014) — 496 (9) (13,978) Provisions 21,672 9,090 (1,416) 9,347 (682) 38,011 Property, plant & equipment (52,231) 3,920 — (8,089) 1,670 (54,730) Inventories — 480 — 708 (2) 1,186 Tax losses 6,353 (5,894) — 2,595 205 3,259 Incentives & credits 9,333 (254) — (8,542) (505) 32 Partnership interest (8,514) — — 8,514 — — Other 5,703 (2,746) (666) (4,425) (364) (2,498) Total (18,135) (9,418) (2,082) 604 313 (28,718) For the year ended December 31, 2021: Opening Prior Year Recognized in Reclassifications Exchange Closing Balance Charge P&L Differences Balance US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Intangible assets (458) 21 (34) — 20 (451) Biological assets (1) — 1 — — — Provisions 14,235 (7) 8,503 (986) (73) 21,672 Property, plant & equipment (48,263) (585) (7,481) 3,238 860 (52,231) Inventories 64 — (64) — — Tax losses 9,525 — 1,491 (3,959) (704) 6,353 Incentives & credits 1,426 — 7,906 — 1 9,333 Partnership interest (8,983) — 469 — — (8,514) Other 4,674 — (266) 1,256 39 5,703 Total (27,781) (571) 10,524 (451) 143 (18,135) Presented in the statement of financial position as follows: 2022 2021 US$'000 US$'000 Deferred tax assets 44,644 45,246 Deferred tax liabilities (73,362) (63,381) Offset between deferred tax assets and deferred tax liabilities 37,508 38,236 Total deferred tax assets due to temporary differences recognized in the statement of financial position 7,136 7,010 Total deferred tax liabilities due to temporary differences recognized in the statement of financial position (35,854) (25,145)
Schedule of unrecognized deductible temporary differences, unused tax losses and unused tax credits	2022 2021 US$'000 US$'000 Unused tax losses 587,495 624,635 Unused tax credits 6,761 8,487 Unrecognized deductible temporary differences 208,011 135,174 Total 802,267 768,296

Related party transactions an_2

Related party transactions and balances (Tables)	12 Months Ended
Related party transactions and balances (Tables)	Dec. 31, 2022
Related party transactions and balances
Schedule of balances with related parties	2022 Receivables Payables Non-Current Current Non-Current Current US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — 2,675 — — Villar Mir Energía, S.L.U. 1,600 — — (10) Enérgya VM Gestión de la Energía, S.L. — — — 1,800 Total 1,600 2,675 — 1,790 2021 Receivables Payables Non-Current Current Non-Current Current US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — 2,841 — — Villar Mir Energía, S.L.U. 1,699 — — 8,808 Espacio Information Technology, S.A.U. — — — 737 Total 1,699 2,841 — 9,545
Schedule of transactions with related parties and other related parties	2022 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — — Villar Mir Energía, S.L.U. — 128,211 1,612 — Espacio Information Technology, S.A.U. — — 1,008 — Enérgya VM Gestión, S.L — 4,506 646 — Other related parties — — 101 — Total — 132,717 3,367 — 2021 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — — Villar Mir Energía, S.L.U. — 132,566 1,365 — Espacio Information Technology, S.A.U. — — 3,266 — Enérgya VM Gestión, S.L — — 120 — Aurinka — — 111 — Other related parties — — 68 — Total — 132,566 4,930 — 2020 Sales and Raw materials Other Finance Operating and energy Operating Income Income consumption for production Expenses (Note 26.4) US$'000 US$'000 US$'000 US$'000 Inmobiliaria Espacio, S.A. — — — 16 Villar Mir Energía, S.L.U. — 39,900 647 — Espacio Information Technology, S.A.U. — — 3,171 — Enérgya VM Gestión, S.L — — 79 — Aurinka — 1 308 — Other related parties — — 3 — Total — 39,901 4,208 16

Income and expenses (Tables)

Income and expenses (Tables)	12 Months Ended
Income and expenses (Tables)	Dec. 31, 2022
Income and expenses
Sales by geographical area	2022 2021 2020 US$'000 US$'000 US$'000 Spain 282,387 251,528 133,370 Germany 442,331 292,774 191,107 Italy 111,887 76,721 42,067 France 148,741 130,811 79,491 Other EU Countries 162,374 176,046 88,443 USA 966,161 515,095 404,633 Rest of World 484,035 335,933 205,323 Total 2,597,916 1,778,908 1,144,434
Schedule of raw materials and energy consumption for production	2022 2021 2020 US$'000 US$'000 US$'000 Purchases of raw materials, supplies and goods 793,014 581,991 366,532 Variation in stocks of finished goods, raw materials, supplies and goods (163,430) (74,361) 61,827 Others 625,637 676,171 405,188 Write-down of raw materials 12,342 — — Write-down of finished goods 17,523 1,095 1,939 Total 1,285,086 1,184,896 835,486
Schedule of other operating income	2022 2021 2020 US$'000 US$'000 US$'000 Energy (53,802) — — C02 (88,952) (103,044) (25,702) Others (4,602) (7,041) (7,925) Total (147,356) (110,085) (33,627)
Schedule of average monthly number of employees	2022 2021 2020 Directors 9 8 6 Senior Managers 288 289 291 Employees 3,173 2,997 3,020 Total 3,470 3,294 3,317
Schedule of staff costs	2022 2021 2020 US$'000 US$'000 US$'000 Wages, salaries and similar expenses 232,880 214,374 161,957 Pension plan contributions 7,977 7,571 3,641 Employee benefit costs 73,953 58,972 49,184 Total 314,810 280,917 214,782
Schedule of Plan awards	Number of awards Outstanding as of December 31, 2020 3,411,974 Granted during the period 1,307,934 Exercised during the period (309,462) Expired/forfeited during the period (51,010) Outstanding as of December 31, 2021 4,359,436 Granted during the period 848,710 Exercised during the period (208,076) Expired/forfeited during the period (1,198,364) Outstanding as of December 31, 2022 3,801,706 Exercisable as of December 31, 2022 344,385
Schedule of share based payment arrangements	Fair Value at Grant Date Performance Period Expiration Date Exercise Price Grant Date 2022 2021 September 22, 2022 December 31, 2024 September 9, 2032 nil 8.53 848,710 — September 9, 2021 December 31, 2021 September 9, 2031 nil $ 8.83 1,255,824 1,307,934 December 16, 2020 December 31, 2020 December 16, 2030 nil $ 1.23 1,352,788 1,411,271 March 13, 2019 December 31, 2021 March 13, 2029 nil $ 2.69 136,682 1,184,441 June 14, 2018 N/A June 13, 2028 nil $ 9.34 44,650 70,774 March 21, 2018 December 31, 2020 March 20, 2028 nil $ 22.56 52,819 136,434 June 20, 2017 December 31, 2019 June 20, 2027 nil $ 15.90 — — June 1, 2017 N/A June 1, 2027 nil $ 10.96 — 834 June 1, 2017 December 31, 2019 June 1, 2027 nil $ 16.77 77,712 168,469 November 24, 2016 December 31, 2018 November 24, 2026 nil $ 16.66 32,521 79,279 3,801,706 4,359,436
Schedule of performance condition of share options granted	Vesting Conditions 40% based cumulative earnings before interest and tax (EBIT) 40% based on cumulative operational cash flow 20% based on total shareholder return (TSR) relative to a comparator group
Schedule of assumptions used to estimate the fair value of Ferroglobe stock option	Grant date September 22, 2022 September 9, 2021 Fair value at grant date $ 8.53 $ 8.83 Grant date share price $ 5.76 $ 8.57 Exercise price Nil 0.01 Expected volatility 94.28 % 104.75 % Option life 3.00 years 2.31 years Dividend yield — — Risk-free interest rate 4.12 % 0.28 % Remaining performance period at grant date (years) 3.00 2.31 Company TSR at grant date (27.2) % NA Median comparator group TSR at grant date 10.5 NA
Schedule of options outstanding	Weighted- Average Weighted- Remaining Average Contractual Aggregate Number of Exercise Term in Intrinsic Options Price Years Value Outstanding as of December 31, 2020 26,268 $ 16.70 0.16 $ — Expired/forfeited during the period Outstanding as of December 31, 2021 26,268 $ 16.70 0.16 $ — Expired/forfeited during the period — Outstanding as of December 31, 2022 26,268 $ 16.70 0.16 $ — Exercisable as of December 31, 2022 26,268 $ 16.70 0.16 $ —
Schedule of depreciation and amortization charges, operating allowances and write-downs	2022 2021 2020 US$'000 US$'000 US$'000 Amortization of intangible assets (Note 8) 725 7,241 7,183 Depreciation of property, plant and equipment (Note 9) 80,834 90,087 101,006 Total 81,559 97,328 108,189
Schedule of finance income	2022 2021 2020 US$'000 US$'000 US$'000 Finance income of related parties (Note 24) — — 16 Other finance income 2,274 253 161 Total 2,274 253 177
Schedule of finance costs	2022 2021 2020 US$'000 US$'000 US$'000 Interest on debt instruments 40,913 42,579 34,989 Interest on loans and credit facilities 9,482 12,584 8,404 Interest on note and bill discounting 125 88 363 Interest on leases 1,587 1,100 1,358 Trade receivables securitization expense (Note 10) 26 399 15,044 Other finance costs 8,882 92,439 6,810 Total 61,015 149,189 66,968
Schedule of changes in impairment losses	2022 2021 2020 US$'000 US$'000 US$'000 Impairment of intangible assets (Note 8) — (1,153) — Impairment of property, plant and equipment (Note 9) (56,999) 1,663 (71,929) Impairment of non-current financial assets — (373) — Impairment of other — — (1,415) Impairment reversal/(losses) (56,999) 137 (73,344) Other (loss) / profit 349 758 158 Net (loss) gain due to changes in the value of assets 349 758 158
Schedule of (loss) gain on disposal of non-current assets	2022 2021 2020 US$'000 US$'000 US$'000 Gain on disposal of intangible assets — — 1,692 Loss on disposal of intangible assets (190) — — Gain on disposal of property, plant and equipment 485 2,462 473 Loss on disposal of property, plant and equipment (754) (1,123) (873) Gain on disposal of other non-current assets — 47 — Total (459) 1,386 1,292
Schedule of contractual assets and liabilities	2022 2021 2020 US$'000 US$'000 US$'000 Contractual Liabilities 775 5,047 1,687 Total 6,708 10,832 6,839

Remuneration of key managemen_2

Remuneration of key management personnel (Tables)	12 Months Ended
Remuneration of key management personnel (Tables)	Dec. 31, 2022
Remuneration of key management personnel
Schedule of remuneration of key management personal	2022 2021 2020 US$'000 US$'000 US$'000 Fixed remuneration 5,404 5,244 5,086 Variable remuneration 5,199 1,209 756 Contributions to pension plans and insurance policies 315 373 319 Share-based compensation 5,937 3,627 2,017 Termination benefits 316 119 1,886 Other remuneration 16 17 9 Total 17,187 10,589 10,073

Financial risk management (Tabl

Financial risk management (Tables)	12 Months Ended
Financial risk management (Tables)	Dec. 31, 2022
Financial risk management
Schedule of interest bearing financial liabilities	2022 Fixed rate Floating rate Total US$'000 US$'000 US$'000 Bank borrowings 16,857 60,976 77,833 Obligations under leases — 21,872 21,872 Debt instruments 343,443 — 343,443 Other financial liabilities () 80,388 18,273 98,661 440,688 101,121 541,809 () Note 2021 Fixed rate Floating rate Total US$'000 US$'000 US$'000 Bank borrowings — 98,967 98,967 Obligations under leases — 18,358 18,358 Debt instruments 440,297 — 440,297 Other financial liabilities () 67,013 — 67,013 507,310 117,325 624,635 () Note
Schedule of undiscounted cash flow maturities	2022 Less than 1 year Between 1-2 years Between 2-5 years After 5 years Total US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 61,888 — 2,544 13,230 77,662 Leases 8,928 7,349 6,888 — 23,166 Debt instruments 32,439 423,235 — — 455,674 Financial loans from government agencies 61,796 4,336 41,239 2,792 110,163 Payables to related parties 1,790 — — — 1,790 Payable to non-current asset suppliers 4,149 183 — — 4,332 Contingent consideration 1,945 3,930 1,257 — 7,132 Tolling agreement liability 3,555 7,110 10,665 113,759 135,089 Trade and other payables 219,666 — — — 219,666 396,156 446,143 62,593 129,781 1,034,674 2021 Less than 1 year Between 1-2 years Between 2-5 years After 5 years Total US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 95,899 — 3,670 — 99,569 Leases 8,092 5,897 3,251 1,289 18,529 Debt instruments 57,440 37,749 493,585 — 588,774 Financial loans from government agencies 63,868 4,304 245 68,417 Payables to related parties 9,545 — — — 9,545 Payable to non-current asset suppliers 2,677 135 — — 2,812 Contingent consideration 13,023 10,684 6,844 — 30,551 Tolling agreement liability 2,589 2,367 5,952 18,379 29,287 Trade and other payables 206,000 — — — 206,000 459,133 61,136 513,547 19,668 1,053,484
Schedule of changes in liabilities arising from financing activities	January 1, 2022 Changes from financing cash flows Effect of changes in foreign exchange rates Changes in fair values Interest expenses Other changes December 31, 2022 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 98,967 (24,529) (5,991) — 3,185 6,201 77,833 Obligations under leases (Note 17) 18,358 (11,590) (750) — 1,587 14,266 21,871 Debt instruments 440,297 (136,260) — 190 34,404 4,811 343,442 Financial loans from government agencies (Note 19) 67,013 35,924 (5,289) — 5,239 (4,226) 98,661 Total liabilities from financing activities 624,635 (136,455) (12,030) 190 44,415 21,052 541,807 Other amounts paid due to net financing activities (4,003) Net cash (used) by financing activities (140,458) January 1, 2021 Changes from financing cash flows Effect of changes in foreign exchange rates Changes in fair values Interest expenses Other changes December 31, 2021 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 US$'000 Bank borrowings 107,607 (15,604) 1,927 — — 5,037 98,967 Obligations under leases (Note 17) 22,536 (11,232) (1,188) — — 8,242 18,358 Debt instruments () 357,508 43,295 — 6,462 36,233 (3,201) 440,297 Financial loans from government agencies (Note 19) 63,896 (2,252) (702) — 6,071 — 67,013 Total liabilities from financing activities 551,547 14,207 37 6,462 42,304 10,078 624,635 Other amounts paid due to net financing activities () (3,755) Net cash provided by financing activities 10,452 () Changes from financing cash flows in debt instruments include payments due to interest amounting to $16,705 thousand and proceeds from debt issuances of $60,000 thousand. (**) Other amounts paid due to financing activities include payments due to equity issuance costs amounting to $43,755 thousand and proceeds from equity issuance of $40,000 thousand.

Fair value measurement (Tables)

Fair value measurement (Tables)	12 Months Ended
Fair value measurement (Tables)	Dec. 31, 2022
Disclosure of financial liabilities [abstract]
Schedule of assets and liabilities measured at fair value	December 31, 2022 Quoted prices in active markets Significant observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) US$'000 US$'000 US$'000 US$'000 Other financial assets (Note 10): Listed equity securities 936 936 — — Other obligations (Note 21) Contingent consideration in a business combination (5,838) — — (5,838) December 31, 2021 Quoted prices in active markets Significant observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) US$'000 US$'000 US$'000 US$'000 Other financial assets (Note 10): Listed equity securities 847 847 — — Other obligations (Note 21) Contingent consideration in a business combination (26,527) — — (26,527)
Schedule of changes fair value on recurring basis using significant unobservable inputs Level 3	Total US$'000 Fair value at December 31, 2020 (16,632) Changes in fair value through profit or loss (13,168) Payments 3,273 Fair value at December 31, 2021 (26,527) Changes in fair value through profit or loss 1,758 Payments 18,931 Fair value at December 31, 2022 (5,838)

Assets and disposal classified

Assets and disposal classified as held for sale and discontinued operations (Tables)	12 Months Ended
	Dec. 31, 2022
Assets and disposal groups classified as held for sale and discontinued operations
Schedule of profit and loss statement from discontinued operations	2022 2021 2020 US$'000 US$'000 US$'000 Sales — — — Raw materials and energy consumption for production — — — Other operating income — — — Staff costs — — — Other operating expense — — — Depreciation and amortization charges, operating allowances and write-downs — — — Impairment losses — — — Operating Profit (loss) — — — Net finance expense — — — (LOSS) PROFIT BEFORE TAXES FROM DISCONTINUED OPERATIONS — — — Income tax expense — — — Gain on sale of discontinued operation — — (5,399) (LOSS) PROFIT AFTER TAXES FROM DISCONTINUED OPERATIONS — — (5,399)
Schedule of earnings per share from discontinued operations	2022 2021 2020 Basic earnings (loss) per ordinary share computation Numerator: Profit (loss) attributable to Discontinued Operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding — — 169,269,281 Basic earnings (loss) per ordinary share (US$) — — (0.03) Diluted earnings (loss) per ordinary share computation Numerator: Profit (loss) attributable to Discontinued Operations (US$'000) — — (5,399) Denominator: Weighted average basic shares outstanding — — 169,269,281 Effect of dilutive securities — — — Weighted average dilutive shares outstanding — — 169,269,281 Diluted earnings (loss) per ordinary share (US$) — — (0.03)
Schedule of cash flows from discontinued operations	2022 2021 2020 US$'000 US$'000 US$'000 Cash flows from operating activities: Profit for the period — — (5,399) Adjustments to reconcile net (loss) profit to net cash provided by operating activities: Income tax expense (benefit) — — — Depreciation and amortization charges, operating allowances and write-downs — — — Net Finance expense — — — Gains on disposals of non-current and financial assets — — 5,399 Changes in working capital Decrease / (increase) in accounts receivable — — — Decrease / (increase) in inventories — — — Increase / (Decrease) in accounts payable — — — Other changes in operating assets and liabilities Other, net — — (24) Income tax paid — — — Interest paid — — — Total cash flow from operating activities — — (24) Cash flows from investing activities: Payments due to investments: Property, plant and equipment — — — Disposals: Disposal of business, net of cash — — — Total cash flow from investing activities — — — Cash flows from financing activities: Other financing activities — — — Total cash flow from financing activities — — — INCREASE / (DECREASE) IN CASH — — (24) CASH AT BEGINNING OF PERIOD — — 24 CASH AT END OF PERIOD — — —

Organization and Subsidiaries -

Organization and Subsidiaries - Percentage of ownership (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Alabama Sand and Gravel, Inc \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Alden Resources, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Alden Sales Corporation, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
ARL Resources, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
ARL Services, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Core Metals Group Holdings, LLC \| North America Silicon Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Core Metals Group, LLC \| North America Silicon Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
ECPI, Inc. \| North America Silicon Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Gatliff Services, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Globe BG, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GBG Financial LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GBG Holdings, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Globe Metallurgical Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Globe Metals Enterprises, Inc. \| North America Silicon Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Alloys I, Inc. \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Alloys II, Inc. \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Enterprises Holdings, Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Enterprises, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Sales, Inc. \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Laurel Ford Resources, Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
LF Resources, Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Metallurgical Process Materials, LLC \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Norchem, Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
QSIP Canada ULC \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Quebec Silicon General Partner
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	51%
Quebec Silicon General Partner \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	51%	51%
Quebec Silicon LP \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	51%	51%
Tennessee Alloys Company, LLC \| North America Silicon Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
West Virginia Alloys, Inc. \| North America Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
WVA Manufacturing, LLC \| North America Silicon Metal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	51%	51%
Cuarzos Industriales, S.A.U. \| Europe Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
FerroPem, S.A.S. \| Europe Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Rocas, Arcillas y Minerales, S.A. \| Europe Silicon Metal and Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroatlantica del Cinca, S.L. \| Europe Manganese
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	99.90%	99.90%
Ferroglobe Mangan Norge AS \| Europe Manganese
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroglobe Manganese France SAS \| Europe Manganese
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Grupo FerroAtlantica, S.A.U \| Europe - Manganese and Silicon
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Grupo FerroAtlantica, S.A.U \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%
Kintuck (France) SAS \| Europe Manganese
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Kintuck AS \| Europe Manganese
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Rebone Mining (Pty.), Ltd. \| South Africa Silicon Metal And Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	74%	74%
Silicon Smelters (Pty.), Ltd. \| South Africa Silicon Metal And Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Silicon Technology (Pty.), Ltd. \| South Africa Silicon Metal And Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Thaba Chueu Mining (Pty.), Ltd. \| South Africa Silicon Metal And Alloys
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	74%	74%
Cuarzos Industriales de Venezuela (Cuarzoven), S.A. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Emix, S.A.S. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroatlantica de Mexico, S.A. de C.V. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroatlantica Participaciones, S.L.U. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100%
Grupo FerroAtlantica de Servicios, S.A.U \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100%
Ferroatlantica de Venezuela (FerroVen), S.A. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	99.90%	99.90%
Ferroatlantica Deutschland, GmbH \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroatlantica Brasil Mineracao Ltda. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	70%	70%
Ferroglobe Holding Company, LTD [Member] \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary - Direct	100%	100%
Proportion of ownership interest in subsidiary	100%	100%
Ferroglobe Finance Company, PLC [Member] \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
FerroManganese Mauritania SARL \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	90%	90%
Ferroquartz Holdings, Ltd (Hong Kong) \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
FerroQuartz Mauritania SARL \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	90%	90%
Ferrosolar OPCO Group SL. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferrosolar R&D SL. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	50%	50%
FerroTambao, SARL \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	90%	90%
Globe Argentina Holdco, LLC \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100%
Globe Metales S.R.L. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Globe Specialty Metals, Inc. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary - Direct		100%
Proportion of ownership interest in subsidiary	100%	100%
GSM Financial, Inc. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
GSM Netherlands, BV \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Hidroelectricite de Saint Beron, S.A.S \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Mangshi FerroAtlantica Mining Industry Service Company Ltd \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ningxia Yonvey Coal Industrial Co., Ltd. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	98%	98%
Photosil Industries, SAS \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Ferroglobe Innovation, S.L.U [Member] \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%
Solsil, Inc. \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	92.40%	92.40%
Ultracore Energy SA \| Other segments
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	100%	100%

Basis of Presentation and Bas_2

Basis of Presentation and Basis of Consolidation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Basis Of Presentation And Basis Of Consolidation [Abstract]
Profit (loss)	$ 443,828	$ (115,374)	$ (249,758)

Accounting policies (Details)

Accounting policies (Details) $ in Thousands	12 Months Ended
Accounting policies (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Useful lives
Cash and cash equivalents in subsidiaries subject to credit agreement restrictions	$ 253,085
Capitalised development expenditure \| Minimum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	4 years
Capitalised development expenditure \| Maximum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	10 years
Rights of use \| Minimum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	10 years
Rights of use \| Maximum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	20 years
Computer software \| Minimum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	2 years
Computer software \| Maximum
Disclosure of intangible assets material to entity [abstract]
Amortisation period of intangible assets	5 years
Properties for own use \| Minimum
Useful lives
Years of Estimated Useful Life	25 years
Properties for own use \| Maximum
Useful lives
Years of Estimated Useful Life	50 years
Plant and machinery \| Minimum
Useful lives
Years of Estimated Useful Life	8 years
Plant and machinery \| Maximum
Useful lives
Years of Estimated Useful Life	20 years
Tools \| Minimum
Useful lives
Years of Estimated Useful Life	12 years 6 months
Tools \| Maximum
Useful lives
Years of Estimated Useful Life	15 years
Furniture and fixtures \| Minimum
Useful lives
Years of Estimated Useful Life	10 years
Furniture and fixtures \| Maximum
Useful lives
Years of Estimated Useful Life	15 years
Computer hardware \| Minimum
Useful lives
Years of Estimated Useful Life	4 years
Computer hardware \| Maximum
Useful lives
Years of Estimated Useful Life	8 years
Transport equipment \| Minimum
Useful lives
Years of Estimated Useful Life	10 years
Transport equipment \| Maximum
Useful lives
Years of Estimated Useful Life	15 years

Segment reporting - Consolidate

Segment reporting - Consolidated income statements (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Disclosure of operating segments [line items]
Number of Segments \| segment	10
Profit (loss) [abstract]
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Raw materials and energy consumption for production	(1,285,086)	(1,184,896)	(835,486)
Other operating income	147,356	110,085	33,627
Staff costs	(314,810)	(280,917)	(214,782)
Other operating expense	(346,252)	(296,809)	(132,059)
Depreciation and amortization charges, operating allowances and write-downs	(81,559)	(97,328)	(108,189)
Impairment (loss) gain	(56,999)	137	(73,344)
Net gain due to changes in the value of assets	349	758	158
(Loss) gain on disposal of non-current assets	(459)	1,386	1,292
Other (loss) gain	91	62	(1)
Operating (loss) profit	660,547	31,386	(184,350)
Operating segments \| North America Silicon Metal
Profit (loss) [abstract]
Sales	671,290	370,109	289,485
Raw materials and energy consumption for production	(305,545)	(265,653)	(205,260)
Other operating income	6,464	5,089	2,804
Staff costs	(61,378)	(51,163)	(48,219)
Other operating expense	(33,708)	(22,222)	(18,990)
Depreciation and amortization charges, operating allowances and write-downs	(33,708)	(40,489)	(48,691)
Impairment (loss) gain			(26,861)
(Loss) gain on disposal of non-current assets	(522)	(347)	(641)
Operating (loss) profit	242,893	(4,676)	(56,373)
Operating segments \| North America Silicon Alloys
Profit (loss) [abstract]
Sales	339,414	154,699	135,792
Raw materials and energy consumption for production	(68,490)	(57,663)	(75,597)
Other operating income	122	296	113
Staff costs	(41,923)	(31,300)	(25,769)
Other operating expense	(37,859)	(20,848)	(15,325)
Depreciation and amortization charges, operating allowances and write-downs	(15,135)	(15,281)	(12,973)
Impairment (loss) gain			(8,824)
(Loss) gain on disposal of non-current assets	(126)	741	(227)
Operating (loss) profit	176,003	30,644	(2,810)
Operating segments \| Europe Manganese
Profit (loss) [abstract]
Sales	701,140	476,287	240,142
Raw materials and energy consumption for production	(541,034)	(326,257)	(204,063)
Other operating income	42,882	34,142	9,199
Staff costs	(28,996)	(33,696)	(28,337)
Other operating expense	(111,741)	(105,290)	(33,884)
Depreciation and amortization charges, operating allowances and write-downs	(13,005)	(18,634)	(19,086)
Impairment (loss) gain	(33,222)	(376)	305
(Loss) gain on disposal of non-current assets	(189)		1,154
Other (loss) gain	11		4
Operating (loss) profit	15,846	26,176	(34,566)
Operating segments \| Europe Silicon Metals
Profit (loss) [abstract]
Sales	536,753	437,533	321,632
Raw materials and energy consumption for production	(241,936)	(303,811)	(255,798)
Other operating income	76,255	48,828	19,971
Staff costs	(81,175)	(77,608)	(52,236)
Other operating expense	(99,513)	(105,712)	(35,415)
Depreciation and amortization charges, operating allowances and write-downs	(4,605)	(7,330)	(8,900)
Impairment (loss) gain		14
(Loss) gain on disposal of non-current assets	230	733	682
Operating (loss) profit	186,009	(7,353)	(10,064)
Operating segments \| Europe Silicon Alloys
Profit (loss) [abstract]
Sales	259,419	227,804	146,096
Raw materials and energy consumption for production	(139,687)	(170,073)	(113,332)
Other operating income	23,622	16,924	5,078
Staff costs	(50,467)	(42,679)	(32,064)
Other operating expense	(33,265)	(23,043)	(16,397)
Depreciation and amortization charges, operating allowances and write-downs	(8,086)	(9,522)	(10,352)
Impairment (loss) gain	(26,028)	(455)	(17,942)
(Loss) gain on disposal of non-current assets	82	296	319
Operating (loss) profit	25,590	(749)	(38,594)
Operating segments \| South Africa Silicon Metals
Profit (loss) [abstract]
Sales	17,337	12,604	17,631
Raw materials and energy consumption for production	(9,270)	(8,240)	(12,267)
Other operating income	156	278	127
Staff costs	(1,736)	(1,542)	(2,497)
Other operating expense	(2,649)	(1,904)	(3,515)
Depreciation and amortization charges, operating allowances and write-downs	(748)	(546)	(1,563)
Impairment (loss) gain	5,357	288	(1,899)
Operating (loss) profit	8,447	938	(3,983)
Operating segments \| South Africa Silicon Alloys
Profit (loss) [abstract]
Sales	122,262	104,591	62,941
Raw materials and energy consumption for production	(65,373)	(68,377)	(43,796)
Other operating income	66	485	3
Staff costs	(11,652)	(11,726)	(8,516)
Other operating expense	(13,193)	(11,352)	(10,583)
Depreciation and amortization charges, operating allowances and write-downs	(5,278)	(4,535)	(5,578)
Impairment (loss) gain	2,408	2,396	(6,777)
Operating (loss) profit	29,240	11,482	(12,306)
Operating segments \| Other segments
Profit (loss) [abstract]
Sales	81,560	43,568	25,334
Raw materials and energy consumption for production	(46,759)	(33,445)	(19,518)
Other operating income	59,840	49,901	24,587
Staff costs	(37,483)	(31,203)	(17,144)
Other operating expense	(74,626)	(51,960)	(26,679)
Depreciation and amortization charges, operating allowances and write-downs	(994)	(991)	(1,046)
Impairment (loss) gain	(5,514)	(1,730)	(11,346)
Net gain due to changes in the value of assets	349	758	158
(Loss) gain on disposal of non-current assets	66	(37)	5
Other (loss) gain	80		(5)
Operating (loss) profit	(23,481)	(25,076)	(25,654)
Adjustments/Eliminations
Profit (loss) [abstract]
Sales	(131,259)	(48,287)	(94,619)
Raw materials and energy consumption for production	133,008	48,623	94,145
Other operating income	(62,051)	(45,858)	(28,255)
Other operating expense	$ 60,302	$ 45,522	$ 28,729

Segment reporting - Sales by pr

Segment reporting - Sales by product line (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of products and services [abstract]
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Silicon Metal Product Line
Disclosure of products and services [abstract]
Sales	1,116,193	637,695	463,217
Manganese Alloys Product Line
Disclosure of products and services [abstract]
Sales	525,483	469,138	267,469
Ferrosilicon Product Line
Disclosure of products and services [abstract]
Sales	561,539	337,833	176,447
Other Silicon Based Alloys Product Line
Disclosure of products and services [abstract]
Sales	192,409	161,750	126,817
Silica Fume Product Line
Disclosure of products and services [abstract]
Sales	32,290	32,409	25,888
Other Product Lines
Disclosure of products and services [abstract]
Sales	$ 170,002	$ 140,083	$ 84,596

Segment reporting - Major custo

Segment reporting - Major customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of major customers [abstract]
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Top Ten Customers
Disclosure of major customers [abstract]
Sales	$ 1,322,724	$ 870,039	$ 580,570
Dow Silicones Corporation
Disclosure of major customers [abstract]
Percentage of Company's sales	16.80%	12.20%	13.20%

Segment reporting - Non-current

Segment reporting - Non-current assets by Geographical Area (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of operating segments [line items]
Total non-current assets	$ 663,883	$ 712,054
USA
Disclosure of operating segments [line items]
Total non-current assets	231,565	230,356
Europe
Disclosure of operating segments [line items]
Total non-current assets	299,278	356,859
Spain
Disclosure of operating segments [line items]
Total non-current assets	109,759	146,405
France
Disclosure of operating segments [line items]
Total non-current assets	133,684	138,842
Other EU Countries
Disclosure of operating segments [line items]
Total non-current assets	55,835	71,612
Rest of World
Disclosure of operating segments [line items]
Total non-current assets	$ 133,040	$ 124,839

Goodwill - Changes in carrying

Goodwill - Changes in carrying amount and impairment testing (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 23, 2015
Reconciliation of changes in goodwill [abstract]
Goodwill at beginning of period	$ 29,702	$ 29,702
Impairment	0	0
Exchange differences	0	0
Goodwill at end of period	29,702	29,702
Globe Specialty Metals Inc
Reconciliation of changes in goodwill [abstract]
Percentage of equity interests acquired			100%
U.S Silicon Metal and U.S Silicon Alloys
Reconciliation of changes in goodwill [abstract]
Goodwill at beginning of period	29,702
Goodwill at end of period	29,702	29,702
U.S. Silicon Metal
Reconciliation of changes in goodwill [abstract]
Goodwill at beginning of period	17,230	17,230
Impairment	0	0
Exchange differences	0	0
Goodwill at end of period	17,230	17,230
U.S. Silicon Based Alloys
Reconciliation of changes in goodwill [abstract]
Goodwill at beginning of period	12,472	12,472
Impairment	0	0
Exchange differences	0	0
Goodwill at end of period	$ 12,472	$ 12,472

Goodwill - Key assumptions used

Goodwill - Key assumptions used in the determination of recoverable value (Details)	12 Months Ended
	Dec. 31, 2022 segment	Dec. 31, 2021	Dec. 31, 2020 USD ($)
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Number of cash generating units	2
Financial Model Period	5 years
Average Operating Profit Margin	23.80%
Compound Annual Growth Rate	(11.00%)
Silicon Metals And Silicon Alloys United States Segment [Member]
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Long-Term Growth Rate	0.020	0.023	2
Normalized Tax Rate	0.210	0.210	21
Silicon Metals And Silicon Alloys United States Segment [Member] \| Weighted average cost of capital (pre-tax)
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.146	0.132	10.3

Other intangible assets (Detail

Other intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
Other intangible assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	$ 100,642	$ 20,756
Additions	113,889	131,836
Disposals	(96,869)	(51,791)
Exchange differences	(5,865)	(159)
Other intangible assets at end of the year	111,797	100,642
Impairment charge related to intangible assets		1,153
Accumulated depreciation and amortisation
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	(96,140)	(93,042)
Additions	(725)	(7,241)
Disposals	20	563
Exchange differences	2,536	3,580
Other intangible assets at end of the year	(94,309)	(96,140)
Accumulated impairment
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	(16,927)	(20,082)
Additions		(1,153)
Disposals		3,072
Exchange differences	830	1,236
Other intangible assets at end of the year	(16,097)	(16,927)
Capitalised development expenditure \| Gross carrying amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	51,698	54,874
Additions	910	1,040
Exchange differences	(2,914)	(4,216)
Other intangible assets at end of the year	49,694	51,698
Power Supply Agreements \| Gross carrying amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	37,836	37,836
Other intangible assets at end of the year	37,836	37,836
Rights of use \| Gross carrying amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	13,369	17,049
Additions	23	10
Disposals		(3,558)
Exchange differences	(153)	(132)
Other intangible assets at end of the year	13,239	13,369
Computer software \| Gross carrying amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	5,090	5,249
Additions	522
Disposals	(20)	(72)
Exchange differences	(62)	(87)
Other intangible assets at end of the year	5,530	5,090
Other intangible assets \| Gross carrying amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Other intangible assets at beginning of the year	105,716	18,872
Additions	113,159	139,180
Disposals	(96,869)	(51,796)
Exchange differences	(6,102)	(540)
Other intangible assets at end of the year	115,904	105,716
Other intangible assets \| Mauritania facility
Reconciliation of changes in intangible assets other than goodwill [abstract]
Impairment charge related to intangible assets		1,153
Rights Held to Emit Greenhouse Gasses
Reconciliation of changes in intangible assets other than goodwill [abstract]
Additions	$ 25,035	$ 44,138

Property, plant and equipment -

Property, plant and equipment - Detail net of accumulated depreciation and impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	$ 554,914	$ 620,034
Additions	(47,450)	43,907
Disposals and other	(1,666)
Disposals and other		(3,900)
Transfers from/(to) other accounts		(1)
Exchange differences	(18,484)	(17,312)
Transfer to assets and disposal groups classified as held for sale	(1,067)
Property, plant and equipment at end of the year	486,247	554,914
Gross carrying amount \| Land and buildings
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	197,214	208,025
Additions	3,170	(166)
Disposals and other		(1,131)
Transfers from/(to) other accounts	505	65
Exchange differences	(7,291)	(9,911)
Transfer to assets and disposal groups classified as held for sale	(18,108)
Property, plant and equipment at end of the year	175,490	197,214
Gross carrying amount \| Plant and Machinery
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	1,202,624	1,331,585
Additions	15,329	(6,054)
Disposals and other	(18,544)
Disposals and other		(106,295)
Transfers from/(to) other accounts	28,295	21,883
Exchange differences	(48,278)	(50,603)
Transfer to assets and disposal groups classified as held for sale	(56,571)
Property, plant and equipment at end of the year	1,122,855	1,202,624
Gross carrying amount \| Fixtures and fittings [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	7,479	8,422
Additions	2,883	(199)
Disposals and other	(122)
Disposals and other		(618)
Transfers from/(to) other accounts	(349)	112
Exchange differences	(731)	(636)
Transfer to assets and disposal groups classified as held for sale	(470)
Property, plant and equipment at end of the year	8,690	7,479
Gross carrying amount \| Construction in progress [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	113,962	124,029
Additions	59,532	(33,409)
Disposals and other	(595)
Disposals and other		(9,374)
Transfers from/(to) other accounts	(33,485)	(23,621)
Exchange differences	(6,021)	(10,481)
Transfer to assets and disposal groups classified as held for sale	(320)
Property, plant and equipment at end of the year	133,073	113,962
Gross carrying amount \| Mineral Reserves [Member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	59,019	59,325
Exchange differences	(215)	(306)
Property, plant and equipment at end of the year	58,804	59,019
Gross carrying amount \| Other property, plant and equipment [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	33,589	33,188
Additions	131
Disposals and other		(55)
Transfers from/(to) other accounts	1,212	(20)
Exchange differences	(725)	476
Property, plant and equipment at end of the year	34,207	33,589
Gross carrying amount \| Leased Land And Machinery [Member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	27,762	24,446
Additions	4,624	(4,113)
Transfers from/(to) other accounts		730
Exchange differences	(1,028)	(1,527)
Property, plant and equipment at end of the year	31,358	27,762
Gross carrying amount \| Leased Land And Buildings [Member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	17,156	17,588
Additions	4,714	(576)
Exchange differences	(625)	(1,008)
Property, plant and equipment at end of the year	21,245	17,156
Accumulated depreciation and amortisation
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	(962,078)	(995,507)
Additions	(80,834)	90,087
Disposals and other	17,685
Disposals and other		73,601
Transfers from/(to) other accounts	3,822	867
Exchange differences	42,157	49,048
Transfer to assets and disposal groups classified as held for sale	56,297
Property, plant and equipment at end of the year	(922,951)	(962,078)
Accumulated impairment
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment at beginning of the year	(141,811)	(191,066)
Additions	(56,999)	(1,663)
Disposals and other	(90)
Disposals and other		39,972
Transfers from/(to) other accounts		(17)
Exchange differences	4,273	7,636
Transfer to assets and disposal groups classified as held for sale	18,105
Property, plant and equipment at end of the year	$ (176,522)	$ (141,811)

Property, plant and equipment_2

Property, plant and equipment - Impairment, disposals and pledged as security (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of impairment loss and reversal of impairment loss [abstract]
Property, plant and equipment	$ 486,247	$ 554,914	$ 620,034
Impairment charges			71,929
Property, plant and equipment pledged as security for outstanding bank loans and other payables	278,796	305,298
Puertollano silicon metal project
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges			11,041
Polokwane facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Fair value of facility		7,130
Carrying value of facility before impairment analysis		4,449
Impairment charges			8,677
Reversed impairment	5,017	2,681
Cee Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges	20,034
Boo Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges	11,559
Moi Ran Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges	15,749
Monzon Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges	5,915
Chateau Feuillet Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Fair value of facility		7,285
Carrying value of facility before impairment analysis		7,726
Impairment charges	5,994	441	17,941
Niagara Facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Property, plant and equipment			0
Net book value of certain assets		0
Impairment charges			$ 34,270
Write off property, plant and equipment		34,229
Mauritania facility
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges		573
South Africa Mines
Disclosure of impairment loss and reversal of impairment loss [abstract]
Reversed impairment	2,750
Ferrosolar OPCO \| Puertollano silicon metal project
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charges	5,515
Construction in progress [member]
Disclosure of impairment loss and reversal of impairment loss [abstract]
Additions	$ 59,532	$ 33,409

Property, plant and equipment_3

Property, plant and equipment - Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of joint ventures [abstract]
Capital expenditure commitments	$ 16,607	$ 3,834

Financial assets and other re_3

Financial assets and other receivables - Financial assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of financial assets [line items]
Total financial assets	$ 641,937	$ 453,526
Other financial assets
Disclosure of financial assets [line items]
Total financial assets	14,189	4,195
Receivables from related parties
Disclosure of financial assets [line items]
Total financial assets	4,275	4,540
Trade receivables
Disclosure of financial assets [line items]
Total financial assets	294,491	321,929
Other receivables
Disclosure of financial assets [line items]
Total financial assets	6,039	6,199
Cash and cash equivalents.
Disclosure of financial assets [line items]
Total financial assets	317,935	114,391
Restricted cash
Disclosure of financial assets [line items]
Total financial assets	5,008	2,272
Amortized cost
Disclosure of financial assets [line items]
Total financial assets	641,001	452,679
Amortized cost \| Other financial assets
Disclosure of financial assets [line items]
Total financial assets	13,253	3,348
Amortized cost \| Receivables from related parties
Disclosure of financial assets [line items]
Total financial assets	4,275	4,540
Amortized cost \| Trade receivables
Disclosure of financial assets [line items]
Total financial assets	294,491	321,929
Amortized cost \| Other receivables
Disclosure of financial assets [line items]
Total financial assets	6,039	6,199
Amortized cost \| Cash and cash equivalents.
Disclosure of financial assets [line items]
Total financial assets	317,935	114,391
Amortized cost \| Restricted cash
Disclosure of financial assets [line items]
Total financial assets	5,008	2,272
Fair value through profit or loss - mandatorily measured
Disclosure of financial assets [line items]
Total financial assets	936	847
Fair value through profit or loss - mandatorily measured \| Other financial assets
Disclosure of financial assets [line items]
Total financial assets	$ 936	$ 847

Financial assets and other re_4

Financial assets and other receivables - Cash and cash equivalents and Restricted cash (Details) € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Disclosure of financial assets [line items]
Cash and cash equivalents	$ 317,935	$ 114,391
Non Current restricted cash presented as Cash	2,133	2,272
Current restricted cash presented as Cash	2,875
Total	322,943	116,663			$ 131,557	$ 123,175
Amount of funds released out of escrow deposits			$ 3,494	€ 3,000
Globe Metallurgical Inc
Disclosure of financial assets [line items]
Federal grant received	2,875
Escrow: Hydro sale
Disclosure of financial assets [line items]
Non Current restricted cash presented as Cash	2,133	$ 2,272
NMTC Program
Disclosure of financial assets [line items]
Current restricted cash presented as Cash	2,875
NMTC Program \| Globe Metallurgical Inc
Disclosure of financial assets [line items]
Federal grant received	$ 2,875

Financial assets and other re_5

Financial assets and other receivables - Other financial assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) entity loan	Dec. 31, 2021 USD ($)
Disclosure of financial assets [line items]
Other non-current financial assets held with third parties	$ 14,186	$ 4,091
Other current financial assets held with third parties	3	104
Other total financial assets held with third parties	$ 14,189	4,195
Number of QLICI loans \| loan	2
Bank borrowings	$ 77,833	98,967
Leveraged Loan
Disclosure of financial assets [line items]
Bank borrowings	$ 9,909
Term of loan	26 years
Interest rate (as a percent)	4.27%
Number of entities liquidation and dissolution \| entity	2
QLICI Loan A
Disclosure of financial assets [line items]
Bank borrowings	$ 9,909
Term of loan	30 years
Interest rate (as a percent)	3.57%
QLICI Loan B
Disclosure of financial assets [line items]
Bank borrowings	$ 3,300
Term of loan	30 years
Interest rate (as a percent)	3.57%
Globe Metallurgical Inc
Disclosure of financial assets [line items]
Federal grant received	$ 2,875
Other financial assets
Disclosure of financial assets [line items]
Other non-current financial assets held with third parties	9,909
Other total financial assets held with third parties	9,909
NMTC Program
Disclosure of financial assets [line items]
Amount allocated for reactivation	$ 13,230
Term of new markets tax credit program	7 years
NMTC Program \| Globe Metallurgical Inc
Disclosure of financial assets [line items]
Federal grant received	$ 2,875
Amortized cost \| Other financial assets
Disclosure of financial assets [line items]
Other non-current financial assets held with third parties	3,344	3,348
Other total financial assets held with third parties	3,344	3,348
Amortized cost \| Other financial assets \| FerroPem SAS
Disclosure of financial assets [line items]
Deposits given to the French government	$ 2,770	2,718
Period for return of deposits	20 years
Fair value through other comprehensive income - designated \| Equity securities
Disclosure of financial assets [line items]
Other non-current financial assets held with third parties	$ 933	743
Other current financial assets held with third parties	3	104
Other total financial assets held with third parties	$ 936	$ 847

Financial assets and other re_6

Financial assets and other receivables - Trade and other receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Trade and other current receivables [abstract]
Trade receivables	$ 295,678	$ 322,935
Less - allowance for doubtful debts	(1,187)	(1,006)
Trade receivables, net	294,491	321,929
Tax receivables(1)	36,852	25,244
Government grant receivables	88,092	27,701
Other receivables	6,039	6,199
Trade and other receivables	$ 425,474	$ 381,073

Financial assets and other re_7

Financial assets and other receivables - Changes in impairment losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of changes in allowance account for credit losses of financial assets [abstract]
Financial assets at beginning of period	$ (453,526)
Financial assets at end of period	(641,937)	$ (453,526)
Accumulated impairment
Reconciliation of changes in allowance account for credit losses of financial assets [abstract]
Financial assets at beginning of period	1,006	1,697
Impairment losses recognized	(361)
Impairment reversal recognized		(580)
Amounts used credited to income	(124)
Exchange differences	(56)	(111)
Financial assets at end of period	$ 1,187	$ 1,006

Financial assets and other re_8

Financial assets and other receivables - Factoring of trade receivables (Details) € in Thousands, $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 02, 2020 EUR (€)	Feb. 28, 2022 EUR (€) customer	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Disclosure of financial assets [line items]
Repaid			$ 919,932	$ 671,467	$ 235,296
Borrowings			77,833	98,967
Finance costs			61,015	149,189	$ 66,968
Factoring of receivables
Disclosure of financial assets [line items]
Upfront Cash Consideration			895,264	659,083
Cash consideration advanced for the financing facility \| €	€ 60,000
Percentage of accounts receivable	10%
Repaid			918,070	640,168
Borrowings			60,976	93,090
Bad debt losses \| €	€ 5,000
Accounts receivables			80,112	115,684
Finance costs			$ 3,426	$ 3,202
Number of preapproved customer \| customer		9
Prefinanced receivables		100%
Receivable service fee		0.25%
Financing closing fees		0.25%
Annual renewal fee percentage		0.25%
Grace period		30 days
Factoring of receivables \| Minimum
Disclosure of financial assets [line items]
Percentage of annual agent fee	0.18%
Factoring of receivables \| Maximum
Disclosure of financial assets [line items]
Percentage of annual agent fee	0.25%
Factoring of receivables \| EURIBOR.
Disclosure of financial assets [line items]
Percentage of financing commission	1%
Financing cost percentage		1%
Late payment interest percentage		15%
Factoring of receivables \| Ferroglobe Finance Company, PLC [Member]
Disclosure of financial assets [line items]
Cash consideration advanced for the financing facility \| €		€ 30,000

Financial assets and other re_9

Financial assets and other receivables - Government Grants (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financial assets and other receivables
Income from government grants	$ 72,251	$ 31,588

Inventories - Schedule (Details

Inventories - Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventories.
Finished goods	$ 169,956	$ 118,080
Raw materials in progress and industrial supplies	266,348	110,965
Other inventories	44,257	42,815
Advances to suppliers	19,519	17,937
Total inventories	$ 500,080	$ 289,797

Inventories - Narrative (Detail

Inventories - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Inventories - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Write-downs (reversals of write-downs) of inventories [abstract]
Inventory write-down	$ 29,865
Inventory write-down finished goods	17,523	$ 1,095	$ 1,939
Inventory write-down raw materials	12,342	0
Purchase Commitments And Collateral [Abstract]
Inventories pledged as collateral	$ 435,347	$ 180,575

Other assets - Non-current and

Other assets - Non-current and current assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) employee	Dec. 31, 2021 USD ($)
Other assets
Guarantees and deposits given - Non-Current	$ 17,492	$ 18,020
Guarantees and deposits given - Current	293	299
Guarantees and deposits given - Total	17,785	18,319
Prepayments and accrued income - Non-Current	37	27
Prepayments and accrued income - Current	5,925	3,213
Prepayments and accrued income - Total	5,962	3,240
Other assets - Non-Current	689	687
Other assets - Current	24,390	4,896
Other assets - Total	25,079	5,583
Non-Current	18,218	18,734
Current	30,608	8,408
Total	$ 48,826	$ 27,142
Provisions for litigation [member] \| Globe Metallurgical Inc.
Other assets
Number of employees impacted \| employee	2
Provisions	$ 18,000

Equity - Share capital (Details

Equity - Share capital (Details) € / shares in Units, $ / shares in Units, € in Thousands				12 Months Ended
	Oct. 06, 2021 USD ($) $ / shares	Jul. 29, 2021 USD ($) $ / shares shares	Oct. 13, 2015 EUR (€)	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 shares	Jun. 22, 2016 $ / shares	Jun. 21, 2016 $ / shares	Dec. 23, 2015 $ / shares shares	Dec. 23, 2015 € / shares shares	Oct. 14, 2015 $ / shares	Oct. 13, 2015 USD ($) $ / shares shares	Feb. 05, 2015 $ / shares shares
Disclosure of classes of share capital [line items]
Issue of equity			€ 50,000		$ 86,398,000
Par value per share \| $ / shares				$ 0.01	$ 0.01			$ 0.01	$ 7.50
Par value per consolidated share \| $ / shares													$ 1
Share issuance costs \| $					$ 43,755,000
Proceeds from equity issuance \| $					$ 40,000,000
Number of shares outstanding				187,433,543
Number of shares outstanding, including treasury shares				188,882,316	188,882,316
Treasury shares				1,448,773
Issued capital \| $				$ 1,962,000	$ 1,962,000
Number of ordinary shares issued						0	0
Equity \| $				$ 756,813,000	$ 320,031,000	$ 365,719,000
Equity Distribution Agreement With B. Riley Securities, Inc. and Cantor Fitzgerald & Co
Disclosure of classes of share capital [line items]
Shares issued (in shares)				0	186,053
Proceeds from equity issuance \| $					$ 1,400,000
Equity Distribution Agreement With B. Riley Securities, Inc. and Cantor Fitzgerald & Co \| Maximum
Disclosure of classes of share capital [line items]
Issue of equity \| $	$ 100,000,000
Globe Specialty Metals Inc
Disclosure of classes of share capital [line items]
Par value per share \| $ / shares										$ 0.0001
Ordinary shares [member]
Disclosure of classes of share capital [line items]
Shares issued (in shares)										1	1		14	1
Par value per share \| $ / shares										$ 7.50		$ 7.50	$ 1	$ 1
Shares consolidated													15
New shares issued after consolidation													2
Equity \| $													$ 15
Ordinary shares [member] \| Equity Distribution Agreement With B. Riley Securities, Inc. and Cantor Fitzgerald & Co
Disclosure of classes of share capital [line items]
Par value per share \| $ / shares	$ 0.01
Class A
Disclosure of classes of share capital [line items]
Shares issued (in shares)										98,078,161	98,078,161
Par value per share \| $ / shares										$ 7.50
Preference shares [member]
Disclosure of classes of share capital [line items]
Shares issued (in shares)													50,000
Grupo Villar Mir SAU
Disclosure of classes of share capital [line items]
The number of beneficially shares owned				81,924,822
Outstanding shares owned by main shareholders (as a percentage)				43.70%
Grupo Villar Mir SAU \| Grupo FerroAtlantica S.A.U.
Disclosure of classes of share capital [line items]
Par value per share \| € / shares											€ 1,000
Cooper Creek Partners Management LLC
Disclosure of classes of share capital [line items]
The number of beneficially shares owned				11,144,337
Outstanding shares owned by main shareholders (as a percentage)				5.90%
Rubric Capital Management LP [Member]
Disclosure of classes of share capital [line items]
Issue of equity \| $		$ 40,000,000
Share issuance costs \| $		$ 6,647,000
Rubric Capital Management LP [Member] \| Ordinary shares [member]
Disclosure of classes of share capital [line items]
Shares issued (in shares)		8,918,618
Issue of equity \| $		$ 40,000,000
Par value per share \| $ / shares		$ 0.01
Number of shares issued as equity work fee		1,900,000
Number of shares issued to bondholders related to financing transactions		7,013,872
Issue of equity work fee and bondholder equity stake \| $		$ 51,522,000

Equity - Valuation adjustments

Equity - Valuation adjustments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Equity [abstract]
Actuarial gains and losses	$ 12,817	$ 5,525
Deferred Tax Income	(2,082)
Valuation adjustments	$ 10,735	$ 5,525

Equity - Capital Raising (Detai

Equity - Capital Raising (Details) € in Thousands, $ in Thousands				12 Months Ended
	Jul. 21, 2022 USD ($)	Mar. 27, 2021 USD ($)	Oct. 13, 2015 EUR (€)	Dec. 31, 2021 USD ($)
Events after the reporting period
Issue of equity			€ 50,000	$ 86,398
Redeemed Senior Notes
Events after the reporting period
Principal amount	$ 60,000
Redemption price of notes	100%
Agreement in Principle on the Terms of Financing Proposal
Events after the reporting period
Issue of equity		$ 40,000
Agreement in Principle on the Terms of Financing Proposal \| Super Senior Notes
Events after the reporting period
Principal amount		$ 60,000

Equity - Dividends (Details)

Equity - Dividends (Details)	12 Months Ended
Equity - Dividends (Details)	Dec. 31, 2021 $ / shares
Equity [abstract]
Dividends paid, per share	$ 0

Equity - Changes in non-control

Equity - Changes in non-controlling interests (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Equity at beginning of period	$ 320,031	$ 365,719
(Loss) Profit for the year	3,514	(4,750)	$ (3,419)
Dividends paid to joint venture partner	(3,430)	(5,880)
Equity at end of period	756,813	320,031	365,719
Noncontrolling interests
Equity at beginning of period	106,053	114,504
(Loss) Profit for the year	3,514	(4,750)
Dividends paid to joint venture partner	(3,430)	(5,880)
Translation differences	(1,873)	166
Other	2,487	2,013
Equity at end of period	$ 106,751	$ 106,053	$ 114,504

Equity - Non-controlling intere

Equity - Non-controlling interests financial information (Details)		12 Months Ended
	Nov. 05, 2009 USD ($)	Dec. 31, 2022 USD ($) loan	Dec. 31, 2022 CAD ($) loan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
CONSOLIDATED STATEMENTS OF FINANCIAL POSITION
Non-current assets		$ 671,019,000		$ 719,064,000
Current assets		1,286,821,000		804,274,000
Non-current liabilities		522,530,000		549,681,000
Current liabilities		678,497,000		653,626,000
CONSOLIDATED INCOME STATEMENTS
Sales		2,597,916,000		1,778,908,000	$ 1,144,434,000
Operating profit		660,547,000		31,386,000	(184,350,000)
Profit before taxes		591,811,000		(119,936,000)	(222,420,000)
Profit (loss)		443,828,000		(115,374,000)	(249,758,000)
CONSOLIDATED STATEMENTS OF CASH FLOWS
Cash flows from operating activities		405,018,000		(1,341,000)	154,268,000
Cash flows from investing activities		(51,774,000)		(23,848,000)	(31,940,000)
Cash flows from financing activities		(140,458,000)		10,452,000	(113,333,000)
Exchange differences on cash and cash equivalents in foreign currencies		(6,506,000)		(157,000)	(613,000)
Beginning balance of cash and cash equivalents		114,391,000
Ending balance of cash and cash equivalents		317,935,000		114,391,000
Non-controlling interests		$ 106,751,000		106,053,000
Number of QLICI loans \| loan		2	2
NMTC Program
CONSOLIDATED STATEMENTS OF CASH FLOWS
Grant allocated for reactivation		$ 13,500,000
Quebec Silicon General Partner
CONSOLIDATED STATEMENTS OF CASH FLOWS
Additional cost per operating agreement			$ 250
Proportion of ownership interest in subsidiary		51%	51%
Globe Specialty Metals Inc \| NMTC Program
CONSOLIDATED STATEMENTS OF CASH FLOWS
Number of QLICI loans \| loan		2	2
WVA Manufacturing, LLC
CONSOLIDATED STATEMENTS OF CASH FLOWS
Additional cost per operating agreement	$ 100
WVA Manufacturing, LLC \| Globe Specialty Metals Inc
CONSOLIDATED STATEMENTS OF CASH FLOWS
Non-controlling interests		$ 62,630,000		61,912,000
Production output sold (as a percentage)	51%
WVA Manufacturing, LLC \| Globe Specialty Metals Inc \| Noncontrolling interests
CONSOLIDATED STATEMENTS OF FINANCIAL POSITION
Non-current assets		78,992,000		83,176,000	99,235,000
Current assets		86,847,000		73,883,000	65,703,000
Non-current liabilities		7,108,000		8,654,000	8,982,000
Current liabilities		53,680,000		43,577,000	33,378,000
CONSOLIDATED INCOME STATEMENTS
Sales		187,854,000		165,660,000	156,995,000
Operating profit		8,306,000		(4,871,000)	(7,503,000)
Profit before taxes		8,155,000		(5,062,000)	(7,503,000)
Profit (loss)		3,075,000		(3,362,000)	(2,970,000)
CONSOLIDATED STATEMENTS OF CASH FLOWS
Cash flows from operating activities		(5,934,000)		11,981,000	28,683,000
Cash flows from investing activities		(8,304,000)		(3,893,000)	(7,977,000)
Beginning balance of cash and cash equivalents		35,360,000		27,272,000	6,566,000
Ending balance of cash and cash equivalents		21,122,000		35,360,000	27,272,000
WVA Manufacturing, LLC \| Dow Corning Corporation [Member]
CONSOLIDATED STATEMENTS OF CASH FLOWS
Production output sold (as a percentage)	49%
WVA Manufacturing, LLC \| Dow Corning Corporation [Member] \| Globe Specialty Metals Inc
CONSOLIDATED STATEMENTS OF CASH FLOWS
Membership interest sold (as a percentage)	49%
Quebec Silicon Limited Partnership [Member] \| Globe Specialty Metals Inc
CONSOLIDATED STATEMENTS OF CASH FLOWS
Non-controlling interests		$ 39,023,000		37,682,000
Production output sold (as a percentage)		51%	51%
Quebec Silicon Limited Partnership [Member] \| Globe Specialty Metals Inc \| Noncontrolling interests
CONSOLIDATED STATEMENTS OF FINANCIAL POSITION
Non-current assets		$ 64,291,000		63,088,000	67,806,000
Current assets		53,830,000		46,186,000	37,095,000
Non-current liabilities		18,719,000		19,005,000	18,529,000
Current liabilities		21,201,000		14,671,000	16,320,000
CONSOLIDATED INCOME STATEMENTS
Sales		102,865,000		89,446,000	70,637,000
Operating profit		2,897,000		2,093,000	3,113,000
Profit before taxes		2,195,000		1,237,000	2,898,000
Profit (loss)		1,015,000		613,000	1,666,000
CONSOLIDATED STATEMENTS OF CASH FLOWS
Cash flows from operating activities		(10,037,000)		8,997,000	15,387,000
Cash flows from investing activities		(1,525,000)		(4,956,000)	(5,227,000)
Cash flows from financing activities		905,000
Exchange differences on cash and cash equivalents in foreign currencies		10,000		31,000	45,000
Beginning balance of cash and cash equivalents		16,596,000		12,524,000	2,319,000
Ending balance of cash and cash equivalents		$ 5,949,000		$ 16,596,000	$ 12,524,000
Quebec Silicon Limited Partnership [Member] \| Dow Corning Corporation [Member]
CONSOLIDATED STATEMENTS OF CASH FLOWS
Production output sold (as a percentage)		49%	49%

Earnings (loss) per ordinary _3

Earnings (loss) per ordinary share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share Continued And Discontinued Operations [Abstract]
(Loss) Profit for the year from continuing operations	$ 443,828	$ (115,374)	$ (244,359)
(Loss) Profit for the year from discontinued operations			(5,399)
Total (Loss) Profit for the year	443,828	(115,374)	(249,758)
Attributable to the Parent	440,314	(110,624)	(246,339)
Attributable to non-controlling interests	3,514	(4,750)	(3,419)
Numerator:
Attributable to the Parent	440,314	(110,624)	(246,339)
(Loss) Profit for the year from continuing operations attributable to parent	$ 440,314	$ (110,624)	(240,940)
(Loss) Profit for the year from discontinued operations			$ (5,399)
Denominator:
Weighted average basic shares outstanding	187,815,672	176,508,144	169,269,281
Weighted average dilutive shares outstanding	189,625,195	176,508,144	169,269,281
Basic profit (loss) earnings per ordinary share (US$)	$ 2.34	$ (0.63)	$ (1.46)
Diluted profit (loss) earnings per ordinary share (US$)	2.32	(0.63)	(1.46)
Basic profit (loss) earnings per ordinary share - continuing operations (US$)	2.34	(0.63)	(1.42)
Diluted profit (loss) earnings per ordinary share - continuing operations (US$)	$ 2.32	$ (0.63)	(1.42)
Basic (loss) earnings per ordinary share - discontinued operations (US$)			(0.03)
Diluted (loss) earnings per ordinary share - discontinued operations (US$)			$ (0.03)

Earnings (loss) per ordinary _4

Earnings (loss) per ordinary share - Antidilutive (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings per share [abstract]
Potential ordinary shares excluded from calculation of diluted (loss) earnings per share because their effect would be anti-dilutive	0	4,359,436	3,411,974

Provisions (Details)

Provisions (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of other provisions [line items]
Non-current provisions	$ 47,670	$ 60,958
Current provisions	145,507	137,625
Provisions	193,177	198,583	$ 163,783
Provisions For Pensions [Member]
Disclosure of other provisions [line items]
Non-current provisions	25,546	41,238
Current provisions	180	180
Provisions	25,726	41,418	56,586
Environment provision [member]
Disclosure of other provisions [line items]
Non-current provisions	168	2,562
Current provisions	1,396	1,133
Provisions	1,564	3,695	4,166
Provisions for litigation [member]
Disclosure of other provisions [line items]
Current provisions	23,142	1,952
Provisions	23,142	1,952	1,355
Provisions for third-party liability
Disclosure of other provisions [line items]
Non-current provisions	5,960	8,905
Provisions	5,960	8,905	10,759
Provisions for C02 emissions allowances [Member]
Disclosure of other provisions [line items]
Non-current provisions	7,956	3,033
Current provisions	94,800	107,213
Provisions	102,756	110,246	40,161
Restructuring provision [member]
Disclosure of other provisions [line items]
Current provisions	21,539	22,350
Provisions	21,539	22,350	2
Restructuring provision [member] \| France
Disclosure of other provisions [line items]
Provisions	21,539	21,717
Other provisions [member]
Disclosure of other provisions [line items]
Non-current provisions	8,040	5,220
Current provisions	4,450	4,797
Provisions	$ 12,490	$ 10,017	$ 50,754

Provisions - Changes - (Details

Provisions - Changes - (Details) - USD ($) $ in Thousands	12 Months Ended
Provisions - Changes - (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	$ 198,583	$ 163,783
Changes for the year	154,305	137,348
Provisions reversed with a credit to income	(7,381)	(18,857)
Amounts used	(128,200)	(38,903)
Provision against equity	(9,394)	(7,928)
Transfers from/(to) other accounts	(2,176)	(28,426)
Exchange differences and others	(12,560)	(8,434)
Balance at end of period	193,177	198,583
Provisions For Pensions [Member]
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	41,418	56,586
Changes for the year	1,405	5,990
Provisions reversed with a credit to income	(3,417)	(1,419)
Amounts used	(1,181)	(9,911)
Provision against equity	(9,394)	(6,847)
Exchange differences and others	(3,105)	(2,981)
Balance at end of period	25,726	41,418
Environment provision [member]
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	3,695	4,166
Changes for the year	13	28
Provisions reversed with a credit to income		(189)
Amounts used	(345)	(1)
Transfers from/(to) other accounts	(1,510)	(33)
Exchange differences and others	(289)	(276)
Balance at end of period	1,564	3,695
Provisions for litigation [member]
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	1,952	1,355
Changes for the year	22,134	934
Provisions reversed with a credit to income	(48)
Amounts used	(798)	(233)
Exchange differences and others	(98)	(104)
Balance at end of period	23,142	1,952
Provisions for third-party liability
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	8,905	10,759
Changes for the year	454	588
Amounts used	(2,863)	(535)
Provision against equity		(1,081)
Exchange differences and others	(536)	(826)
Balance at end of period	5,960	8,905
Provisions for C02 emissions allowances [Member]
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	110,246	40,161
Changes for the year	114,185	97,982
Provisions reversed with a credit to income	(2,435)	(7,830)
Amounts used	(112,485)	(18,420)
Exchange differences and others	(6,755)	(1,647)
Balance at end of period	102,756	110,246
Provision for restructuring cost
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	22,350	2
Changes for the year	9,092	31,838
Provisions reversed with a credit to income	(591)
Amounts used	(8,012)	(9,534)
Transfers from/(to) other accounts		44
Exchange differences and others	(1,300)
Balance at end of period	21,539	22,350
Provision for restructuring cost \| Spain
Reconciliation of changes in other provisions [abstract]
Provisions reversed with a credit to income	(591)
Other provisions [member]
Reconciliation of changes in other provisions [abstract]
Balance at beginning of period	10,017	50,754
Changes for the year	7,022	(12)
Provisions reversed with a credit to income	(890)	(9,419)
Amounts used	(2,516)	(269)
Transfers from/(to) other accounts	(666)	(28,437)
Exchange differences and others	(477)	(2,600)
Balance at end of period	$ 12,490	$ 10,017

Provisions - Employee obligatio

Provisions - Employee obligations - France - (Details) - France - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Changes in net defined benefit liability (asset) [abstract]
Percentage change in cost of provision	1%	1%
Change in obligation	$ 1,695	$ 3,288
Not later than one year
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,087
Later than one year and not later than two years
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,279
Later than two years and not later than three years
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,339
Later than three years and not later than four years
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,316
Later than four years and not later than five years
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,349
Later than five years and not later than ten years
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	7,237
FerroPem SAS \| Present value of defined benefit obligation [member]
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	25,950	34,496
Current service cost	(1,159)	1,082
Borrowing costs	310	212
Actuarial differences	(4,821)	(3,003)
Benefits paid	(1,181)	(995)
Exchange differences	(1,253)	(2,412)
Others	(1,508)	(3,430)
Obligations at end of year	$ 16,338	$ 25,950

Provisions - Employee obligat_2

Provisions - Employee obligations - South Africa - (Details) - South Africa - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Changes in net defined benefit liability (asset) [abstract]
Percentage change in cost of medical aid	1%	1%
Change in provision due to reasonably possible change in the cost of medical aid	$ 352	$ 481
Disclosure of fair value of plan assets [abstract]
Cash	56.37%	2.85%
Equity		47.21%
Fixed Income Securities	43.63%	17.32%
Property		2.79%
International		28.42%
Others		1.41%
Total	100%	100%
Present value of defined benefit obligation [member]
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	$ 3,779	$ 3,461
Current service cost	34	32
Borrowing costs	411	390
Actuarial differences	(861)	526
Benefits paid	(219)	(232)
Exchange differences	(132)	(398)
Obligations at end of year	3,012	3,779
Plan assets [member]
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	1,706	2,204
Interest income on assets	93	172
Benefits paid	(1,619)	(775)
Actuarial differences	(84)	223
Other	(2)	(118)
Fair value of plan assets at the end of the year	94	1,706
Actual return on assets	$ 9	$ 395

Provisions - Employee obligat_3

Provisions - Employee obligations - Venezuela - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Venezuela
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Salary increase	180%	500%
Discount rate	202.40%	536%
Expected inflation rate	200%	550%
Venezuela \| Minimum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Actuarial assumption of retirement age	63 years	63 years
Venezuela \| Maximum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Actuarial assumption of retirement age	64 years	64 years
France
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discount rate	3.84%	0.75%
Expected inflation rate	2.20%	1.60%
Actuarial assumption of retirement age	65 years	65 years
France \| Minimum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Salary increase	1.60%	1.60%
France \| Maximum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Salary increase	6.10%	6.10%
South Africa
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Actuarial assumption of retirement age	63 years	63 years
South Africa \| Minimum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discount rate	8.20%	10.60%
Expected inflation rate	4%	5.80%
South Africa \| Maximum
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discount rate	12.80%	11.60%
Expected inflation rate	7.30%	7.10%
FerroAtlantica De Venezuela SA \| Venezuela
Disclosure of defined benefit plans [line items]
Years of service	15 years
Percentage of basic salary guaranteed by IVSS	80%
Present value of defined benefit obligation [member] \| South Africa
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	$ 3,779	$ 3,461
Current service cost	34	32
Borrowing costs	411	390
Actuarial differences	861	(526)
Benefits paid	219	232
Exchange differences	(132)	(398)
Obligations at end of year	3,012	3,779
Present value of defined benefit obligation [member] \| FerroAtlantica De Venezuela SA \| Venezuela
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	190	22
Current service cost	66	102
Borrowing costs	748	115
Benefits paid	(24)	(2)
Exchange differences	(578)	(47)
Obligations at end of year	$ 402	$ 190

Provisions - Employee obligat_4

Provisions - Employee obligations - North America - Provisions (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) plan
Actuarial assumption of medical cost trend rates [member]
Estimated Future Benefit Payments [Abstract]
Health care cost trend rate	5%
Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Percentage of reasonably possible increase in actuarial assumption	1%	1%
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption	$ 848	$ 1,735
Percentage of reasonably possible decrease in actuarial assumption	1%	1%
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption	$ (689)	$ (1,327)
North America
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Benefit obligation	23,763	33,918
Fair value of plan assets	(17,777)	(22,431)
Provision for pensions	5,986	11,487
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discretionary contributions to the defined benefit pension and postretirement plans	648
North America \| Pension Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Benefit obligation	18,266	25,349
North America \| Post Retirement Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Benefit obligation	5,497	8,569
USA \| Pension Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Fair value of plan assets		(14)
Provision for pensions		(14)
CANADA \| Pension Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Benefit obligation	18,266	25,349
Fair value of plan assets	(17,777)	(22,417)
Provision for pensions	$ 489	$ 2,932
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discount rate	5.25%	3.21%
CANADA \| Post Retirement Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Benefit obligation	$ 5,497	$ 8,569
Provision for pensions	$ 5,497	$ 8,569
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Discount rate	5.25%	3.30%
Minimum \| CANADA \| Pension Plans
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Salary increase	2.75%	2.75%
Retirement age	58 years	58 years
Minimum \| CANADA \| Post Retirement Plans
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Retirement age	58 years	58 years
Maximum \| CANADA \| Pension Plans
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Salary increase	3%	3%
Retirement age	60 years	60 years
Maximum \| CANADA \| Post Retirement Plans
Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]
Retirement age	60 years	60 years
Not later than one year \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	$ 985
Not later than one year \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	180
Later than one year and not later than two years \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,027
Later than one year and not later than two years \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	186
Later than two years and not later than three years \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,110
Later than two years and not later than three years \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	207
Later than three years and not later than four years \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,154
Later than three years and not later than four years \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	227
Later than four years and not later than five years \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	1,203
Later than four years and not later than five years \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	247
Later than five years and not later than ten years \| North America \| Pension Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	6,212
Later than five years and not later than ten years \| North America \| Post Retirement Plans
Estimated Future Benefit Payments [Abstract]
Estimated future benefit payments	$ 1,535
Later Than Seventeen Years And Not Later Than Eighteen Years [Member] \| Actuarial assumption of medical cost trend rates [member]
Estimated Future Benefit Payments [Abstract]
Health care cost trend rate	4%
Globe Metallurgical Inc \| North America
Disclosure of defined benefit plans [line items]
Number of defined benefit plans sponsored \| plan		3
Globe Metallurgical Inc \| North America \| Pension Plans
Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]
Total settlement payment from plan termination		$ 2,784
Net income recognized from plan termination		$ 1,027

Provisions - Employee obligat_5

Provisions - Employee obligations - North America plan assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
North America
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	$ 33,918
Service cost	463
Borrowing costs	1,044
Actuarial differences	(8,814)
Benefits paid	(1,032)
Exchange differences	(1,816)
Obligations at end of year	$ 23,763	$ 33,918
Disclosure of fair value of plan assets [abstract]
Equity	31%	31%
Fixed Income Securities	14%	14%
Assets held by insurance company	55%	55%
Total	100%	100%
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	$ 22,431
Fair value of plan assets at the end of the year	17,777	$ 22,431
North America \| Pension Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	25,349
Obligations at end of year	18,266	25,349
North America \| Post Retirement Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	8,569
Obligations at end of year	5,497	8,569
USA \| Pension Plans
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	14
Fair value of plan assets at the end of the year		14
CANADA \| Pension Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	25,349
Obligations at end of year	18,266	25,349
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	22,417
Fair value of plan assets at the end of the year	17,777	22,417
CANADA \| Post Retirement Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	8,569
Obligations at end of year	5,497	8,569
Present value of defined benefit obligation [member] \| CANADA \| Pension Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	25,349
Service cost	162
Borrowing costs	773
Actuarial differences	(5,774)
Benefits paid	(870)
Exchange differences	(1,374)
Obligations at end of year	18,266	25,349
Present value of defined benefit obligation [member] \| CANADA \| Post Retirement Plans
Changes in net defined benefit liability (asset) [abstract]
Obligations at beginning of year	8,569
Service cost	301
Borrowing costs	271
Actuarial differences	(3,040)
Benefits paid	(162)
Exchange differences	(442)
Obligations at end of year	5,497	8,569
Plan assets [member] \| North America
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	22,417
Interest income on assets	690
Benefits paid	(870)
Actuarial return (loss) on plan assets	(3,496)
Exchange Differences	(1,269)
Other	305
Fair value of plan assets at the end of the year	17,777	22,417
Plan assets [member] \| CANADA
Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	22,417
Interest income on assets	690
Benefits paid	(870)
Actuarial return (loss) on plan assets	(3,496)
Exchange Differences	(1,269)
Other	305
Fair value of plan assets at the end of the year	$ 17,777	$ 22,417

Provisions - Third-Party Liabil

Provisions - Third-Party Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other provisions [abstract]
Non-current provisions	$ 47,670	$ 60,958
Current provisions	145,507	137,625
Environmental rehabilitation
Other provisions [abstract]
Non-current provisions	168	2,562
Current provisions	1,396	1,133
Provision for Litigation \| Globe Metallurgical Inc
Other provisions [abstract]
Current provisions	18,000
Provision for Litigation \| FerroPem, S.A.S.
Other provisions [abstract]
Current provisions	955	1,143
Provisions for third-party liability
Other provisions [abstract]
Non-current provisions	5,960	$ 8,905
Later than one year and not later than two years \| Provisions for third-party liability \| FerroPem, S.A.S.
Other Benefit Plans [Abstract]
Estimated future benefit payments	529
Later than two years and not later than three years \| Provisions for third-party liability \| FerroPem, S.A.S.
Other Benefit Plans [Abstract]
Estimated future benefit payments	270
Later than three years and not later than four years \| Provisions for third-party liability \| FerroPem, S.A.S.
Other Benefit Plans [Abstract]
Estimated future benefit payments	275
Later than four years and not later than five years \| Provisions for third-party liability \| FerroPem, S.A.S.
Other Benefit Plans [Abstract]
Estimated future benefit payments	282
Later than five years and not later than ten years \| Provisions for third-party liability \| FerroPem, S.A.S.
Other Benefit Plans [Abstract]
Estimated future benefit payments	$ 1,458

Provisions - Other Benefit Plan

Provisions - Other Benefit Plans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other provisions [abstract]
Provisions	$ 193,177	$ 198,583	$ 163,783
Other Provisions Provisions For Taxes
Other provisions [abstract]
Provisions	1,998	2,506
Other Provisions for Reclaiming Land
Other provisions [abstract]
Provisions	$ 7,551	$ 6,422

Bank borrowings - (Details)

Bank borrowings - (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Borrowings [abstract]
Non-Current Amount	$ 15,774	$ 3,670
Current Amount	62,059	95,297
Total	77,833	98,967
Credit facilities
Borrowings [abstract]
Principal amount	100,000
Receivable Factoring Facility
Borrowings [abstract]
Principal amount	95,994	67,956
Current Amount	60,976	93,090
Total	60,976	93,090
Other Loans
Borrowings [abstract]
Non-Current Amount	15,774	3,670
Current Amount	1,083	2,207
Total	$ 16,857	$ 5,877

Bank borrowings - Credit and Se

Bank borrowings - Credit and Security Agreement - (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Mar. 16, 2021	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 10, 2019	Oct. 11, 2019
Bank Borrowings
Repayment of debt			$ 919,932	$ 671,467	$ 235,296
Minimum \| SOFR
Bank Borrowings
Applicable margin (as a percent)		1.50%
Maximum \| SOFR
Bank Borrowings
Applicable margin (as a percent)		1.75%
ABL Revolver
Bank Borrowings
Maximum borrowing capacity		$ 100,000				$ 100,000	$ 100,000
Credit facility term		5 years
Repayment of debt	$ 39,476
Threshold of capital leases			$ 7,500
Fixed charge coverage ratio (as a percent)			100%

Bank borrowings - Borrowings fr

Bank borrowings - Borrowings from receivable factoring facility - (Details) - Factoring of receivables € in Thousands		1 Months Ended
	Oct. 02, 2020 EUR (€)	Feb. 28, 2022 EUR (€) customer
Disclosure of detailed information about borrowings [line items]
Cash consideration advanced for the financing facility	€ 60,000
Percentage of accounts receivable	10%
Bad debt losses	€ 5,000
Number of preapproved customer \| customer		9
Prefinanced receivables		100%
Receivable service fee		0.25%
Financing closing fees		0.25%
Annual renewal fee percentage		0.25%
Grace period		30 days
EURIBOR.
Disclosure of detailed information about borrowings [line items]
Percentage of financing commission	1%
Financing cost percentage		1%
Late payment interest percentage		15%
Ferroglobe Finance Company, PLC [Member]
Disclosure of detailed information about borrowings [line items]
Cash consideration advanced for the financing facility		€ 30,000
Minimum
Disclosure of detailed information about borrowings [line items]
Percentage of annual agent fee	0.18%
Maximum
Disclosure of detailed information about borrowings [line items]
Percentage of annual agent fee	0.25%

Bank borrowings - Other Loans -

Bank borrowings - Other Loans - (Details) $ in Thousands	1 Months Ended	12 Months Ended
Bank borrowings - Other Loans - (Details) $ in Thousands	Jul. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) entity loan	Dec. 31, 2021 USD ($)
Bank Borrowings
Outstanding balance		$ 77,833	$ 98,967
Number of QLICI loans \| loan		2
Other Loans
Bank Borrowings
Outstanding balance		$ 16,857	5,877
Other Loans \| France
Bank Borrowings
Principal amount	$ 5,277
Outstanding balance		2,544	$ 3,670
Interest rate (as a percent)	0%
Fair value of borrowings		2,959
Other Loans \| Minimum \| France
Bank Borrowings
Term of loan	1 year
Other Loans \| Maximum \| France
Bank Borrowings
Term of loan	5 years
Leveraged Loan
Bank Borrowings
Outstanding balance		$ 9,909
Term of loan		26 years
Interest rate (as a percent)		4.27%
Number of entities liquidation and dissolution \| entity		2
QLICI Loan A
Bank Borrowings
Outstanding balance		$ 9,909
Term of loan		30 years
Interest rate (as a percent)		3.57%
QLICI Loan B
Bank Borrowings
Outstanding balance		$ 3,300
Term of loan		30 years
Interest rate (as a percent)		3.57%
NMTC Program
Bank Borrowings
Principal amount		$ 13,230
Amount allocated for reactivation		$ 13,230
Term of new markets tax credit program		7 years
Globe Metallurgical Inc
Bank Borrowings
Federal grant received		$ 2,875
Globe Metallurgical Inc \| NMTC Program
Bank Borrowings
Federal grant received		$ 2,875

Bank borrowings - Borrowing det

Bank borrowings - Borrowing detail by currency - (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Borrowings [abstract]
Non-Current Amount	$ 15,774	$ 3,670
Current Amount	62,059	95,297
Total	77,833	98,967
US Dollars
Borrowings [abstract]
Non-Current Amount	13,230
Current Amount	170	1,245
Total	13,400	1,245
Euros
Borrowings [abstract]
Non-Current Amount	2,544
Current Amount	61,889
Total	$ 64,433
Other.
Borrowings [abstract]
Non-Current Amount		3,670
Current Amount		94,052
Total		$ 97,722

Bank borrowings - Borrowing d_2

Bank borrowings - Borrowing detail by maturity - (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Borrowings [abstract]
Maturity of bank borrowings	$ 77,833
Not later than one year
Borrowings [abstract]
Maturity of bank borrowings	62,059
Later than three years and not later than four years
Borrowings [abstract]
Maturity of bank borrowings	2,544
Later than seven years and not later than ten years
Borrowings [abstract]
Maturity of bank borrowings	13,230
Receivable Factoring Facility
Borrowings [abstract]
Maturity of bank borrowings	60,976
Receivable Factoring Facility \| Not later than one year
Borrowings [abstract]
Maturity of bank borrowings	60,976
Other Loans
Borrowings [abstract]
Maturity of bank borrowings	16,857
Other Loans \| Not later than one year
Borrowings [abstract]
Maturity of bank borrowings	1,083
Other Loans \| Later than three years and not later than four years
Borrowings [abstract]
Maturity of bank borrowings	2,544
Other Loans \| Later than seven years and not later than ten years
Borrowings [abstract]
Maturity of bank borrowings	$ 13,230

Leases - Obligations and Maturi

Leases - Obligations and Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lease liabilities [abstract]
Non-current	$ 12,942	$ 9,968
Current	8,929	8,390
Total lease liabilities	21,871	18,358	$ 22,536
Other leases
Lease liabilities [abstract]
Non-current	12,942	9,968
Current	8,929	8,390
Total lease liabilities	21,871	$ 18,358
Later than one year and not later than two years
Lease liabilities [abstract]
Non-current	4,420
Later than one year and not later than two years \| Other leases
Lease liabilities [abstract]
Non-current	4,420
Later than two years and not later than three years
Lease liabilities [abstract]
Non-current	2,930
Later than two years and not later than three years \| Other leases
Lease liabilities [abstract]
Non-current	2,930
Later than three years and not later than four years
Lease liabilities [abstract]
Non-current	1,739
Later than three years and not later than four years \| Other leases
Lease liabilities [abstract]
Non-current	1,739
Later than four years and not later than five years
Lease liabilities [abstract]
Non-current	1,506
Later than four years and not later than five years \| Other leases
Lease liabilities [abstract]
Non-current	1,506
Later than five years
Lease liabilities [abstract]
Non-current	3,643
Later than five years \| Other leases
Lease liabilities [abstract]
Non-current	$ 3,643

Leases - IFRS 16 Impact (Detail

Leases - IFRS 16 Impact (Details) - USD ($) $ in Thousands	12 Months Ended
Leases - IFRS 16 Impact (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases
Weighted average discount rate		5.30%
Movement In Lease Liabilities [Roll Forward]
Balance	$ (18,358)	$ (22,536)
Additions	(14,979)	(7,761)
Disposals and other	713	517
Interest	(1,587)	(1,100)	$ (1,358)
Lease payments	11,590	11,285
Exchange differences	750	1,237
Balance	$ (21,871)	$ (18,358)	$ (22,536)

Leases - Financial position (De

Leases - Financial position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of quantitative information about right-of-use assets [line items]
Non-current lease liabilities	$ (12,942)	$ (9,968)
Current lease liabilities	(8,929)	(8,390)
Accumulated depreciation and amortisation
Disclosure of quantitative information about right-of-use assets [line items]
Noncurrent assets	(34,622)	(29,855)
Land and buildings
Disclosure of quantitative information about right-of-use assets [line items]
Noncurrent assets	21,245	17,156
Property, plant & equipment
Disclosure of quantitative information about right-of-use assets [line items]
Noncurrent assets	$ 31,358	$ 27,762

Leases - Income statement and c

Leases - Income statement and cash flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases
Depreciation, right-of-use assets	$ 4,767	$ 7,357
Interest expense on lease	1,587	1,100	$ 1,358
Currency translation gains on lease liabilities	750	1,237
Currency translation losses on right of use assets	(812)	(1,838)
Principal	10,003	10,185
Interest	$ 1,587	$ 1,100

Debt instruments (Details)

Debt instruments (Details) - USD ($)				12 Months Ended
Debt instruments (Details) - USD ($)	Jul. 21, 2022	Jul. 30, 2021	May 17, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2022	Feb. 15, 2017
Debt Instruments
Unamortised issuance costs					$ (6,064,000)
Accrued coupon interest				$ 13,569,000	30,416,000
Amount due for settlement within 12 months				12,787,000	35,359,000
Amount due for settlement after 12 months				330,655,000	404,938,000
Total debt instruments				343,442,000	440,297,000
Refinancing charge		$ 90,800,000			90,800,000
Effective interest rate		9.096%
Refinancing adjustment		$ 6,462,000
Proceeds from borrowings				898,586,000	659,083,000	$ 177,593,000
Advisory fees		31,700,000
Market value of shares issued to the bondholders and underwriters		51,600,000
Secured Super Senior Notes [Member] \| Financial assets at amortised cost, class [member]
Debt Instruments
Notes receivable				19,048,000
Accrued Coupon Interest [Member] \| Financial assets at amortised cost, class [member]
Debt Instruments
Notes receivable				$ 783,000
Senior Notes due 2022
Debt Instruments
Principal amount								$ 350,000,000
Fixed Interest Rate								9.375%
Secured Super Senior Notes [Member]
Debt Instruments
Unamortized issuance cost recognized as finance expense	$ 6,000,000
Principal amount		$ 60,000,000
Fixed Interest Rate		9%
Redemption price of notes	100%
Redemption price of notes at change of control	100%
Secured Super Senior Notes [Member] \| Ferroglobe Finance Company, PLC [Member]
Debt Instruments
Principal amount		$ 60,000,000	$ 60,000,000
Fixed Interest Rate		9%	9%
Proceeds from borrowings			$ 40,000,000
Percentage of Repurchase				101%
Secured Reinstated Senior Notes [Member]
Debt Instruments
Principal amount		$ 345,058,000
Fixed Interest Rate		9.375%		9.375%
Fair value of notes				$ 349,609,000
Exchange Percentage		98.588%
Debt repurchase amount							$ 19,050,000
Accrued interest							641,000
Debt repurchase, face amount							$ 19,120,000
Debt repurchase price per share							$ 1.01
Cash fee		$ 51,611,000
Conversion Price		1,000
Percentage of Repurchase				101%
Percentage of guarantor coverage test				90%
Outstanding upfront fees capitalized		$ 1,000,000
Unsecured Stub Notes [Member]
Debt Instruments
Total debt instruments					$ 4,900,000
Redemption price of notes					100%
Financial liabilities at amortised cost, category [member] \| Secured Super Senior Notes [Member]
Debt Instruments
Notes issued					$ 60,000,000
Financial liabilities at amortised cost, category [member] \| Secured Reinstated Senior Notes [Member]
Debt Instruments
Notes issued				$ 349,704,000	351,003,000
Financial liabilities at amortised cost, category [member] \| Unsecured Stub Notes [Member]
Debt Instruments
Notes issued					$ 4,942,000

Other financial Liabilities (De

Other financial Liabilities (Details) $ in Thousands			12 Months Ended
Other financial Liabilities (Details) $ in Thousands	Feb. 10, 2023 EUR (€)	Sep. 08, 2016 EUR (€) installment	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Mar. 03, 2022 USD ($)	Mar. 03, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)
Categories of financial liabilities [abstract]
Non-Current \| $			$ 38,279				$ 4,549
Current \| $			60,382				62,464
Total \| $			98,661				67,013
Modification of Contractual Terms in REINDUS Loan
Financial Loans With Governments Agencies [Abstract]
Early repayment of debt	€ 16,300,000
Sociedad Estatal de Participaciones Industriales loan
Financial Loans With Governments Agencies [Abstract]
Amortized cost \| $			34,675
Financial liabilities, at fair value			48,066		$ 34,149	€ 30,693,000
Principal amount						€ 34,500,000
Additional interest rate payable					1%	1%
Government grant					$ 4,236	€ 3,807,000
Intercompany net commercial balances \| $			20,000
Sociedad Estatal de Participaciones Industriales loan \| Loan with fixed interest rate
Financial Loans With Governments Agencies [Abstract]
Interest rate (as a percent)					2%	2%
Principal amount						€ 16,900,000
Sociedad Estatal de Participaciones Industriales loan \| Loan With Variable Interest Rate [Member]
Financial Loans With Governments Agencies [Abstract]
Principal amount						€ 17,600,000
Sociedad Estatal de Participaciones Industriales loan \| Interest Rate Spread, Fourth Year [Member]
Financial Loans With Governments Agencies [Abstract]
Applicable margin (as a percent)					5%	5%
Sociedad Estatal de Participaciones Industriales loan \| LIBOR \| Interest rate spread, first year
Financial Loans With Governments Agencies [Abstract]
Applicable margin (as a percent)					2.50%	2.50%
Sociedad Estatal de Participaciones Industriales loan \| LIBOR \| Interest rate spread, second and third years
Financial Loans With Governments Agencies [Abstract]
Applicable margin (as a percent)					3.50%	3.50%
Loan maturing in February 2025
Financial Loans With Governments Agencies [Abstract]
Principal amount						€ 17,250,000
Loan maturing in June 2025
Financial Loans With Governments Agencies [Abstract]
Principal amount						17,250,000
Financial Loans With Governments Agencies
Categories of financial liabilities [abstract]
Non-Current \| $			38,279				4,549
Current \| $			60,382				62,464
Total \| $			98,661				67,013
REINDUS Loan
Financial Loans With Governments Agencies [Abstract]
Financial liabilities, at fair value \| $			$ 48,066				44,200
Ferroatlantica, S.A.U.
Financial Loans With Governments Agencies [Abstract]
Loans received		€ 26,909,000
Ferroatlantica, S.A.U. \| Financial Loans With Governments Agencies
Financial Loans With Governments Agencies [Abstract]
Loans received		€ 44,999,000
Number of loan installments \| installment		7
Borrowings term		10 years
Grace period at start of loan		3 years
Interest rate (as a percent)			3.55%	3.55%
Default interest rate (as a percent)			3.75%	3.75%
Amortized cost			$ 58,651	€ 54,989,000			$ 61,815	€ 54,578,000
Grupo FerroAtlantica, S.A.U
Financial Loans With Governments Agencies [Abstract]
Percentage of ownership interest ceases to hold			51%
Grupo Villar Mir SAU
Financial Loans With Governments Agencies [Abstract]
Percentage of ownership interest ceases to hold			35%
Grupo FerroAtlantica de Servicios, S.A.U
Financial Loans With Governments Agencies [Abstract]
Percentage of ownership interest ceases to hold			100%
Grupo Ferroatlntica, S.A.U. and Grupo Ferrotlantica de Servicios, S.L.U.,
Financial Loans With Governments Agencies [Abstract]
Debt instrument threshold amount of default on payment obligations				2,500,000
Debt Instrument, Threshold Amount of Default on Payment Obligations on Commercial Non Financial Nature				2,500,000
Debt Instrument, Threshold Amount of Default on Payment Obligations with Creditors				€ 5,000,000
Grupo Ferroatlntica, S.A.U. and Grupo Ferrotlantica de Servicios, S.L.U., \| Sociedad Estatal de Participaciones Industriales loan
Financial Loans With Governments Agencies [Abstract]
Principal amount						€ 34,500,000

Trade and other payables (Detai

Trade and other payables (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Trade and other payables.
Payable to suppliers	$ 219,020	$ 200,999
Trade notes and bills payable	646	5,001
Total	$ 219,666	$ 206,000

Other Obligations (Details)

Other Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other Obligations
Payable to non-current asset suppliers - Non-Current	$ 183	$ 135
Payable to non-current asset suppliers - Current	4,149	2,677
Payable to non-current asset suppliers	4,332	2,812
Guarantees and deposits - non-current	12	14
Guarantees and deposits - current	235	4,554
Guarantees and deposits	247	4,568
Contingent consideration - non -current	3,893	13,504
Contingent consideration - current	1,945	13,023
Contingent consideration	5,838	26,527
Tolling agreement liability - noncurrent	33,414	24,429
Tolling agreement liability - current	3,251	2,589
Tolling agreement liability	36,665	27,018
Other obligations, Non-Current	37,502	38,082
Other obligations, Current	9,580	22,843
Other obligations	$ 47,082	$ 60,925

Other Obligations - Narratives

Other Obligations - Narratives (Details) € in Thousands, $ in Thousands			12 Months Ended
	Aug. 30, 2019 item	Feb. 01, 2018 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 EUR (€)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			$ 5,838
Ferroatlantica, S.A.U.
Disclosure of terms and conditions of share-based payment arrangement [line items]
Percentage of interest in subsidiary sold	100%
Number of hydroelectric power plants transferred. \| item	10
Sensitivity On Discount Rate, Decrease By Ten Percent
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			5,880
Sensitivity On Discount Rate, Increase By Ten Percent
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			5,672
Sensitivity on volumes, Decrease By Ten Percent [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			4,398
Sensitivity on volumes, Increase By Ten Percent [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			7,209
Sensitivity On Mn Spread, Forty Percent [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			1,856
Sensitivity On Mn Spread, Sixty Percent [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Increase (decrease) in fair value of contingent consideration.			12,795
Tolling Agreement with Cee-Dumbria Ferroalloys Plant
Disclosure of terms and conditions of share-based payment arrangement [line items]
Litigation liability			36,665		€ 34,375
Kintuk
Disclosure of terms and conditions of share-based payment arrangement [line items]
Percentage of equity interests acquired		100%
Payment of contingent consideration			18,931
Contingent consideration			5,838	$ 26,527
Ferroglobe Mangan Norge and Ferroglobe Manganese France
Disclosure of terms and conditions of share-based payment arrangement [line items]
Period for contingent consideration		8 years 6 months
Ferroglobe Mangan Norge and Ferroglobe Manganese France \| Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Contingent consideration arrangements		$ 0
Average simulated revenues			137,871	245,292
Ferroglobe Mangan Norge and Ferroglobe Manganese France \| Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Contingent consideration arrangements		$ 60,000
Average simulated revenues			$ 124,999	$ 311,050
Ferroglobe Mangan Norge
Disclosure of terms and conditions of share-based payment arrangement [line items]
Discount rates (as a percent)			10.70%	10.70%
Ferroglobe Manganese France
Disclosure of terms and conditions of share-based payment arrangement [line items]
Discount rates (as a percent)			11.50%	10.90%

Other liabilities - Other Curre

Other liabilities - Other Current and Non-current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other liabilities
Remuneration payable - current	$ 55,791	$ 36,046
Remuneration payable	55,791	36,046
Tax payables - current	37,628	17,613
Total tax payables	37,628	17,613
Other liabilities - non-current	12	1,476
Other liabilities - current	11,113	20,669
Other liabilities	11,125	22,145
Total other non current liabilities	12	1,476
Total other current liabilities	104,563	74,328
Total other liabilities	$ 104,544	$ 75,804

Other liabilities - Tax Payable

Other liabilities - Tax Payables and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other liabilities
VAT, current	$ 20,905	$ 4,839
VAT	20,905	4,839
Accrued social security taxes payable, current	6,195	6,251
Accrued social security taxes payable	6,195	6,251
Personal income tax withholding payable, current	896	820
Personal income tax withholding payable	896	820
Other tax payables, current	9,632	5,703
Other tax payables	9,632	5,703
Total current tax payables	37,628	17,613
Total tax payables	$ 37,628	$ 17,613

Tax matters - Components of cur

Tax matters - Components of current and deferred tax expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tax matters
Current income tax charge	$ 144,246	$ 5,284	$ 4,307
Adjustments in current income tax in respect of prior period years	(5,681)		901
Total	138,565	5,284	5,208
Origination and reversal of temporary differences	15,032	(9,954)	(20,961)
Impact of tax rate changes	460
Write-down of deferred tax assets	(1,448)		37,660
Adjustments in deferred tax in respect of prior years	(4,626)	108	32
Total	9,418	(9,846)	16,731
Income tax expense (benefit)	$ 147,983	$ (4,562)	$ 21,939

Tax matters - Statutory tax rat

Tax matters - Statutory tax rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tax matters
Accounting profit/(loss) before income tax	$ 602,660	$ (119,936)	$ (222,420)
Adjustment for discontinued operations			(5,399)
Accounting profit/(loss) before income tax	$ 602,660	$ (119,936)	$ (227,819)
Statutory tax rate	26%	19%	24%
At weighted statutory tax rate of 26% (2021: 19% and 2020: 24%)	$ 157,620	$ (22,650)	$ (54,294)
Non-taxable income/(expenses)	(5,920)	(11,399)	6,779
Differing territorial tax rates	591	2,603	3,064
Adjustments in respect of prior periods	1,368		(50)
Other items	7,539	27,884	70,123
Elimination of effect of interest in joint ventures	(913)	(782)	899
Other permanent differences	159	(673)	(389)
Incentives and deductions	(11,740)	88	(2,456)
US State taxes	(721)	367	(1,737)
Income tax expense (benefit)	$ 147,983	$ (4,562)	$ 21,939

Tax matters - Deferred tax asse

Tax matters - Deferred tax assets and liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets and liabilities
Opening balance	$ (18,135)	$ (27,781)
Prior Year Change		(571)
Recognized in P&L	(9,418)	10,524
Recognized in Equity/ OCI	(2,082)
Write-down of deferred tax assets	604
Reclassifications		(451)
Exchange Differences	313	143
Closing balance	(28,718)	(18,135)
Intangible assets
Deferred tax assets and liabilities
Opening balance	(451)	(458)
Prior Year Change		21
Recognized in P&L	(14,014)	(34)
Write-down of deferred tax assets	496
Exchange Differences	(9)	20
Closing balance	(13,978)	(451)
Biological assets.
Deferred tax assets and liabilities
Opening balance		(1)
Recognized in P&L		1
Other Provision
Deferred tax assets and liabilities
Opening balance	21,672	14,235
Prior Year Change		(7)
Recognized in P&L	9,090	8,503
Recognized in Equity/ OCI	(1,416)
Write-down of deferred tax assets	9,347
Reclassifications		(986)
Exchange Differences	(682)	(73)
Closing balance	38,011	21,672
Property, plant & equipment
Deferred tax assets and liabilities
Opening balance	(52,231)	(48,263)
Prior Year Change		(585)
Recognized in P&L	3,920	(7,481)
Write-down of deferred tax assets	(8,089)
Reclassifications		3,238
Exchange Differences	1,670	860
Closing balance	(54,730)	(52,231)
Inventories.
Deferred tax assets and liabilities
Opening balance		64
Recognized in P&L	480	(64)
Write-down of deferred tax assets	708
Exchange Differences	(2)
Closing balance	1,186
Tax losses
Deferred tax assets and liabilities
Opening balance	6,353	9,525
Recognized in P&L	(5,894)	1,491
Write-down of deferred tax assets	2,595
Reclassifications		(3,959)
Exchange Differences	205	(704)
Closing balance	3,259	6,353
Incentives and credits
Deferred tax assets and liabilities
Opening balance	9,333	1,426
Recognized in P&L	(254)	7,906
Write-down of deferred tax assets	(8,542)
Exchange Differences	(505)	1
Closing balance	32	9,333
Partnership Interest
Deferred tax assets and liabilities
Opening balance	(8,514)	(8,983)
Recognized in P&L		469
Write-down of deferred tax assets	8,514
Closing balance		(8,514)
Other
Deferred tax assets and liabilities
Opening balance	5,703	4,674
Recognized in P&L	(2,746)	(266)
Recognized in Equity/ OCI	(666)
Write-down of deferred tax assets	(4,425)
Reclassifications		1,256
Exchange Differences	(364)	39
Closing balance	$ (2,498)	$ 5,703

Tax matters - Significant compo

Tax matters - Significant components of deferred tax assets and liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets	$ 44,644	$ 45,246
Deferred tax liabilities	(73,362)	(63,381)
Offset between deferred tax assets and deferred tax liabilities	37,508	38,236
Total deferred tax assets due to temporary differences recognized in the statement of financial position	7,136	7,010
Total deferred tax liabilities due to temporary differences recognized in the statement of financial position	(35,854)	(25,145)
Total	$ 802,267	768,296
Number of years open to review	4 years
Unused tax losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total	$ 587,495	624,635
Unused tax credits
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total	6,761	8,487
Unrecognized deductible temporary differences
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total	$ 208,011	$ 135,174

Related party transactions an_3

Related party transactions and balances (Details) $ in Thousands		1 Months Ended	12 Months Ended
	Dec. 22, 2022 GWh	Jan. 31, 2021	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Related party transactions and balances
Receivables, Non-Current			$ 1,600	$ 1,699
Receivables, Current			2,675	2,841
Payables, Current			1,790	9,545
Partial refund of CIT paid			592,378
Raw materials and energy consumption for production			132,717	132,566	$ 39,901
Other Operating Expenses			$ 3,367	4,930	4,208
Finance Income					16
Power Purchase Agreement (PPA)
Related party transactions and balances
Power supplied per agreement \| GWh	65
Period for commencement of operation of the plants	10 years
Percentage of total power consumption of the Sabon plant	10%
CIT Loan
Related party transactions and balances
Interest rate (as a percent)			5.25%
Term of loan			1 year
Inmobiliaria Espacio, S.A.
Related party transactions and balances
Receivables, Current			$ 2,675	2,841
Related party transaction loan maturity term			1 year
Finance Income					16
Inmobiliaria Espacio, S.A. \| EURIBOR
Related party transactions and balances
Applicable margin (as a percent)			2.75%
Villar Mir Energia, S.L.U.
Related party transactions and balances
Receivables, Non-Current			$ 1,600	1,699
Payables, Non-Current			(10)
Payables, Current				8,808
Raw materials and energy consumption for production			128,211	132,566	39,900
Other Operating Expenses			$ 1,612	1,365	647
Term of contract			1 year
Renewal term annual			3 years
Renewed term		2 years
Additional Renewal extension term		1 year
Contract termination notice period		30 days
Villar Mir Energia, S.L.U. \| Grupo FerroAtlantica, S.A.U
Related party transactions and balances
Obligation for purchase of energy plus service charge				102,066
Villar Mir Energia, S.L.U. \| Ferroatlantica del Cinca, S.L.
Related party transactions and balances
Obligation for purchase of energy plus service charge				30,501
Espacio Information Technology, S.A.U.
Related party transactions and balances
Payables, Current				737
Other Operating Expenses			$ 1,008	3,266	3,171
Energya VM Gestion, S.L
Related party transactions and balances
Raw materials and energy consumption for production			4,506
Other Operating Expenses			646	120	79
Energya VM Gestion de la Energia, S.L.
Related party transactions and balances
Payables, Current			1,800
Obligation for purchase of energy plus service charge			4,506
Aurinka
Related party transactions and balances
Raw materials and energy consumption for production					1
Other Operating Expenses				111	308
Other related parties
Related party transactions and balances
Other Operating Expenses			$ 101	$ 68	$ 3

Guarantee commitments to thir_2

Guarantee commitments to third parties and contingent liabilities (Details) € in Thousands, $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Apr. 30, 2021 EUR (€)	Mar. 31, 2023 USD ($) employee	Dec. 31, 2022 USD ($) case employee	Dec. 31, 2016 item	Dec. 31, 2021 USD ($)
Guarantee commitments to third parties and other contingent assets and liabilities
Bank guarantees commitments to third parties			$ 7,905		$ 11,948
Statutory maximum penalty per day per violation, from April, 2013 to December 2021
Guarantee commitments to third parties and other contingent assets and liabilities
Statutory maximum penalty per day per violation of standard provisions			93,750
Statutory maximum penalty per day per violation, after December 2021
Guarantee commitments to third parties and other contingent assets and liabilities
Statutory maximum penalty per day per violation of standard provisions			109,024
Stamp Tax Litigation
Guarantee commitments to third parties and other contingent assets and liabilities
Loss contingency tax reassessment \| €	€ 1,400
Loss contingency tax penalty \| €	€ 600
Stamp Tax Litigation \| Minimum
Guarantee commitments to third parties and other contingent assets and liabilities
Loss contingency period	2 years
Stamp Tax Litigation \| Maximum
Guarantee commitments to third parties and other contingent assets and liabilities
Loss contingency period	4 years
Asbestos-related claims
Guarantee commitments to third parties and other contingent assets and liabilities
Accrued amount			$ 955		$ 1,143
Number of employees \| employee			100
Loss contingency claims settled percentage			75%
Number of grave cases \| case			3
Other environment related contingent liability
Guarantee commitments to third parties and other contingent assets and liabilities
Accrued amount			$ 2,800
Number of notices of violations \| item				2
Globe Metallurgical Selma, Alabama, Facility Litigation
Guarantee commitments to third parties and other contingent assets and liabilities
Number of employees impacted \| employee		2
Insurance settled and paid for claims		$ 18,000

Income and expenses - Sale by G

Income and expenses - Sale by Geographical Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Sales by Geographical Area
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Spain
Sales by Geographical Area
Sales	282,387	251,528	133,370
Germany
Sales by Geographical Area
Sales	442,331	292,774	191,107
Italy
Sales by Geographical Area
Sales	111,887	76,721	42,067
France
Sales by Geographical Area
Sales	148,741	130,811	79,491
Other EU Countries
Sales by Geographical Area
Sales	162,374	176,046	88,443
USA
Sales by Geographical Area
Sales	966,161	515,095	404,633
Rest of World
Sales by Geographical Area
Sales	$ 484,035	$ 335,933	$ 205,323

Income and expenses - Raw mater

Income and expenses - Raw materials and energy consumption for production (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income and expenses
Purchases of raw materials, supplies and goods	$ 793,014	$ 581,991	$ 366,532
Variation in stocks of finished goods, raw materials, supplies and goods	(163,430)	(74,361)	61,827
Others	625,637	676,171	405,188
Write-down of raw materials	12,342	0
Write-down of finished goods	17,523	1,095	1,939
Total cost	$ 1,285,086	$ 1,184,896	$ 835,486

Income and expenses - Other ope

Income and expenses - Other operating income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income and expenses
Energy	$ (53,802)
C02	(88,952)	$ (103,044)	$ (25,702)
Others	(4,602)	(7,041)	(7,925)
Total other operating income	$ (147,356)	$ (110,085)	$ (33,627)

Income and expenses - Staff Cos

Income and expenses - Staff Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Staff costs
Average number of employees	3,470	3,294	3,317
Wages, salaries and similar expenses	$ 232,880	$ 214,374	$ 161,957
Pension plan contributions	7,977	7,571	3,641
Employee benefit costs	73,953	58,972	49,184
Staff costs	$ 314,810	$ 280,917	$ 214,782
Directors
Staff costs
Average number of employees	9	8	6
Senior Managers
Staff costs
Average number of employees	288	289	291
Employees
Staff costs
Average number of employees	3,173	2,997	3,020

Income and expenses - Plan Awar

Income and expenses - Plan Awards (Details) - Ferroglobe PLC Equity Incentive Plan	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Term of service condition	3 years		4 years	3 years	3 years	3 years
Outstanding at beginning of the period	4,359,436	3,411,974
Granted during the period	848,710	1,307,934
Exercised during the period	(208,076)	(309,462)
Expired/forfeited during the period \| shares	(1,198,364)	(51,010)
Outstanding at end of the period	3,801,706	4,359,436	3,411,974
Exercisable as of December 31, 2020	344,385

Income and expenses - Share-bas

Income and expenses - Share-based payment arrangements (Details) - Ferroglobe PLC Equity Incentive Plan											12 Months Ended
	Sep. 22, 2022 USD ($) Y $ / shares	Sep. 09, 2021 USD ($) Y $ / shares	Dec. 16, 2020 USD ($) $ / shares	Mar. 13, 2019 USD ($) $ / shares	Jun. 14, 2018 USD ($) $ / shares	Mar. 21, 2018 USD ($) $ / shares	Jun. 20, 2017 USD ($) $ / shares	Jun. 01, 2017 USD ($) $ / shares	Nov. 24, 2016 USD ($) $ / shares	May 29, 2016 $ / shares	Dec. 31, 2022 USD ($) EquityInstruments Y $ / shares	Dec. 31, 2021 USD ($) EquityInstruments Y $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											3,801,706	4,359,436
Percentage of cumulative earnings before interest and tax (EBIT)											40%
Percentage of net cash flow											40%
Percentage of total shareholder return (TSR) relative to a comparator group, vesting condition											20%
Number of options with no performance obligations											44,650	71,608
Number of options with performance conditions											3,757,056	4,287,828
Weighted average fair value of share options granted	$ 8.53	$ 8.83									$ 8.53	$ 8.83
Grant date share price \| $ / shares	$ 5.76	$ 8.57
Exercise price \| $ / shares	$ 0	$ 0.01								$ 0		$ 0.01
Expected volatility	94.28%	104.75%
Option life \| Y	3	2.31									8.33	8.37
Risk-free interest rate	4.12%	0.28%
Performance period remaining at grant date	3 years	2 years 3 months 21 days									3 years
Company TSR at grant date	(27.20%)
Median comparator group TSR at grant date	10.50%
Share based compensation expense											$ 5,836,000	$ 3,627,000
Weighted average share price at the date of exercise for stock options exercised \| $ / shares											$ 6.46	$ 5.28
Grand date of September 22, 2022
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											848,710
Weighted average fair value of share options granted	$ 8.53
Exercise price \| $ / shares
Grant date of September 9, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											1,255,824	1,307,934
Weighted average fair value of share options granted		$ 8.83
Exercise price \| $ / shares
Grant date of December 16, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											1,352,788	1,411,271
Weighted average fair value of share options granted			$ 1.23
Exercise price \| $ / shares
Grant date of March 13, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											136,682	1,184,441
Weighted average fair value of share options granted				$ 2.69
Exercise price \| $ / shares
Grant date of June 14, 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											44,650	70,774
Weighted average fair value of share options granted					$ 9.34
Exercise price \| $ / shares
Grant date of March 21, 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											52,819	136,434
Weighted average fair value of share options granted						$ 22.56
Exercise price \| $ / shares
Grant date of June 20, 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Weighted average fair value of share options granted							$ 15.90
Exercise price \| $ / shares
Grant date of June 1, 2017 two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments												834
Weighted average fair value of share options granted								$ 10.96
Exercise price \| $ / shares
Grant date of June 1, 2017 one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											77,712	168,469
Weighted average fair value of share options granted								$ 16.77
Exercise price \| $ / shares
Grant date of November 24, 2016
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of instruments granted \| EquityInstruments											32,521	79,279
Weighted average fair value of share options granted									$ 16.66
Exercise price \| $ / shares
Minimum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Options receivable by participant depending on financial performance of the Company, as a percent											0%
Maximum
Disclosure of terms and conditions of share-based payment arrangement [line items]
Options receivable by participant depending on financial performance of the Company, as a percent											200%

Income and expenses - Options O

Income and expenses - Options Outstanding (Details) - Ferroglobe Stock Option Replacement Awards	12 Months Ended
	Dec. 31, 2022 USD ($) EquityInstruments $ / shares	Dec. 31, 2021 USD ($) EquityInstruments $ / shares	Dec. 31, 2020 EquityInstruments $ / shares	Dec. 23, 2015
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share ratio exchanged upon business combination				1
Outstanding at beginning of the period \| EquityInstruments	26,268	26,268
Outstanding at end of the period \| EquityInstruments	26,268	26,268	26,268
Exercisable \| EquityInstruments	26,268
Weighted average exercise price at the beginning of the period \| $ / shares	$ 16.70	$ 16.70
Weighted average exercise price at the end of the period \| $ / shares	16.70	$ 16.70	$ 16.70
Weighted average exercise price of share options exercisable in share-based payment arrangement \| $ / shares	$ 16.70
Weighted average remaining contractual life of outstanding share options	1 month 28 days	1 month 28 days	1 month 28 days
Weighted average remaining contractual term, exercisable	1 month 28 days
Share based compensation expense \| $	$ 101,000	$ 120,000
Number of share options exercised in share-based payment arrangement \| $	0	0
Expired \| $	0	0

Income and expenses - RSUs and

Income and expenses - RSUs and SARs (Details) - Restricted stock units - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting life of share-based awards	3 years
Share options exercised	0	0
Outstanding	26,268,000	26,268,000

Income and expenses - Depreciat

Income and expenses - Depreciation and Amortization charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Depreciation and amortization charges, operating allowances and write-downs
Amortization of intangible assets (Note 8)	$ 725	$ 7,241	$ 7,183
Depreciation of property, plant and equipment (Note 9)	80,834	90,087	101,006
Depreciation and amortization charges, operating allowances and write-downs	$ 81,559	$ 97,328	$ 108,189

Income and expenses - Finance I

Income and expenses - Finance Income and Finance Costs (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finance income
Finance income of related parties (Note 24)				$ 16
Other finance income		$ 2,274	$ 253	161
Finance income		2,274	253	177
Finance costs
Interest on debt instruments		40,913	42,579	34,989
Interest on loans and credit facilities		9,482	12,584	8,404
Interest on note and bill discounting		125	88	363
Interest on leases		1,587	1,100	1,358
Trade receivables securitization expense (Note 10)		26	399	15,044
Other finance costs		8,882	92,439	6,810
Finance costs		$ 61,015	149,189	$ 66,968
Refinancing charge	$ 90,800		$ 90,800

Income and expenses - Impairmen

Income and expenses - Impairment Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Impairment losses
Impairment of intangible assets (Note 8)		$ (1,153)
Impairment of property, plant and equipment (Note 9)	$ (56,999)	1,663	$ (71,929)
Impairment of non-current financial assets		(373)
Impairment of other			(1,415)
Impairment (reversal)/losses	(56,999)	137	(73,344)
Net (loss) gain due to changes in the value of assets
Other (loss) / profit	349	758	158
Net (loss) gain due to changes in the value of assets	349	758	158
(Loss) gain on disposal of non-current assets
Gain on disposal of intangible assets			1,692
Loss on disposal of intangible assets	(190)
Gain on disposal of property, plant and equipment	485	2,462	473
Loss on disposal of property, plant and equipment	(754)	(1,123)	(873)
Gain on disposal of other non-current assets		47
Total (loss) gain on disposal of non-current assets	$ (459)	$ 1,386	$ 1,292

Income and expenses - Gains and

Income and expenses - Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of analysis of single amount of discontinued operations [line items]
Property, plant and equipment	$ 486,247	$ 554,914	$ 620,034
Loss on disposal of intangible assets	190
Gain on disposal of intangible assets			1,692
Niagara Facility
Disclosure of analysis of single amount of discontinued operations [line items]
Proceeds from sale of assets		1,370
Property, plant and equipment			$ 0
FerroPem, S.A.S.
Disclosure of analysis of single amount of discontinued operations [line items]
Proceeds from sale of assets	$ 312	$ 1,092

Income and expenses - Contractu

Income and expenses - Contractual assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income and expenses
Contractual Liabilities	$ 775	$ 5,047	$ 1,687
Total	$ 6,708	$ 10,832	$ 6,839

Remuneration of key managemen_3

Remuneration of key management personnel (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Remuneration and other benefits paid to key management personnel
Fixed remuneration	$ 5,404	$ 5,244	$ 5,086
Variable remuneration	5,199	1,209	756
Contributions to pension plans and insurance policies	315	373	319
Share-based compensation	5,937	3,627	2,017
Termination benefits	316	119	1,886
Other remuneration	16	17	9
Total	17,187	10,589	10,073
Key management personnel
Remuneration and other benefits paid to key management personnel
Loans and advances granted	$ 0	$ 0	$ 0

Financial risk management (Deta

Financial risk management (Details) € in Thousands, $ in Thousands

1 Months Ended

12 Months Ended

Jul. 21, 2022

Mar. 16, 2021 USD ($)

Jul. 23, 2020 EUR (€)

Jun. 02, 2020 USD ($) installment

Sep. 08, 2016 EUR (€) installment

Jun. 30, 2022 USD ($)

Dec. 31, 2022 USD ($) GWh item

Dec. 31, 2021 USD ($) item

Dec. 31, 2020 USD ($)

Dec. 31, 2022 EUR (€) item

Mar. 03, 2022 EUR (€)

Feb. 28, 2022 customer

Dec. 31, 2021 EUR (€) item

Jul. 30, 2021 USD ($)

Nov. 10, 2019 USD ($)

Oct. 11, 2019 USD ($)

Feb. 15, 2017 USD ($)

Financial risk management

Repayment of debt

$ 919,932

$ 671,467

$ 235,296

Borrowings

$ 77,833

98,967

Percentage of sensitivity of currency, appreciation or depreciation

10%

Sensitivity depreciation or depreciation impact on on increase (decrease) the net profit before tax

$ 62,764

Long-term power purchase commitments

$ 526,841

294,557

Total Power Consumption | GWh

6,431

ABL Revolver

Financial risk management

Maximum borrowing capacity

$ 100,000

Repayment of debt

$ 39,476

Credit facility term

5 years

Sociedad Estatal de Participaciones Industriales loan

Financial risk management

Principal amount | €

€ 34,500

Amortized cost

$ 34,675

Secured Super Senior Notes [Member]

Financial risk management

Principal amount

$ 60,000

Fixed Interest Rate

Redemption price of notes at change of control

100%

Secured Reinstated Senior Notes [Member]

Financial risk management

Principal amount

$ 345,058

Fixed Interest Rate

9.375%

Senior Notes due 2022

Financial risk management

Principal amount

$ 350,000

Fixed Interest Rate

9.375%

Interest rate risk

Financial risk management

Borrowings

$ 77,833

98,967

Increase in floating interest rate, Percentage

Additional borrowing cost if 1% increase in floating interest rate

$ 812

$ 990

Foreign currency risk

Financial risk management

Number of swaps outstanding | item

Foreign currency risk | Secured Super Senior Notes [Member]

Financial risk management

Principal amount

$ 60,000

Foreign currency risk | Senior Notes due 2022

Financial risk management

Principal amount

$ 350,000

Factoring of receivables

Financial risk management

Upfront cash consideration

$ 895,264

$ 659,083

Repayment of debt

918,070

640,168

Borrowings

$ 60,976

93,090

Ferroatlantica, S.A.U.

Financial risk management

Loans received | €

€ 26,909

Number of customers | customer

Ferroatlantica, S.A.U. | Financial Loans With Governments Agencies

Financial risk management

Fixed Interest Rate

3.55%

Loans received | €

€ 44,999

Number of loan installments | installment

Amortized cost

$ 58,651

$ 61,815

€ 54,989

€ 54,578

Borrowings term

10 years

Grace period at start of loan

3 years

FerroPem, S.A.S. | Loan with BNP Paribas

Financial risk management

Principal amount | €

€ 4,456

Fixed Interest Rate

Percentage of capital borrowed

0.50%

FerroPem, S.A.S. | Minimum | Loan with BNP Paribas

Financial risk management

Additional amortization period

1 year

FerroPem, S.A.S. | Maximum | Loan with BNP Paribas

Financial risk management

Additional amortization period

5 years

Commitment amount | €

€ 22

Silicium Qubec | Financial Loans With Governments Agencies

Financial risk management

Principal amount

$ 7,000

Fixed Interest Rate

Number of loan installments | installment

Borrowings term

10 years

Grace period at start of loan

3 years

Grupo Ferroatlntica, S.A.U. and Grupo Ferrotlantica de Servicios, S.L.U., | Sociedad Estatal de Participaciones Industriales loan

Financial risk management

Principal amount | €

€ 34,500

Financial risk management - Int

Financial risk management - Interest-bearing financial liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of financial instruments by type of interest rate [line items]
Bank borrowings	$ 77,833	$ 98,967
Obligations under leases	21,871	18,358	$ 22,536
Debt instruments	343,442	440,297
Other financial liabilities	38,279	4,549
Interest rate risk
Disclosure of financial instruments by type of interest rate [line items]
Bank borrowings	77,833	98,967
Obligations under leases	21,872	18,358
Debt instruments	343,443	440,297
Other financial liabilities	98,661	67,013
Interest-bearing financial liabilities	541,809	624,635
Interest rate risk \| Fixed rate
Disclosure of financial instruments by type of interest rate [line items]
Bank borrowings	16,857
Debt instruments	343,443	440,297
Other financial liabilities	80,388	67,013
Interest-bearing financial liabilities	440,688	507,310
Interest rate risk \| Floating rate
Disclosure of financial instruments by type of interest rate [line items]
Bank borrowings	60,976	98,967
Obligations under leases	21,872	18,358
Other financial liabilities	18,273
Interest-bearing financial liabilities	$ 101,121	$ 117,325

Financial risk management - Liq

Financial risk management - Liquidity risk (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Net undiscounted cash flows
Payable to non-current asset suppliers	$ 4,332	$ 2,812
Liquidity risk
Net undiscounted cash flows
Bank borrowings	77,662	99,569
Leases	23,166	18,529
Debt instruments	455,674	588,774
Financial loans from government agencies	110,163	68,417
Payables to related parties	1,790	9,545
Payable to non-current asset suppliers	4,332	2,812
Contingent consideration	7,132	30,551
Tolling agreement liability	135,089	29,287
Trade and other payables	219,666	206,000
Contractual undiscounted payments	1,034,674	1,053,484
Not later than one year \| Liquidity risk
Net undiscounted cash flows
Bank borrowings	61,888	95,899
Leases	8,928	8,092
Debt instruments	32,439	57,440
Financial loans from government agencies	61,796	63,868
Payables to related parties	1,790	9,545
Payable to non-current asset suppliers	4,149	2,677
Contingent consideration	1,945	13,023
Tolling agreement liability	3,555	2,589
Trade and other payables	219,666	206,000
Contractual undiscounted payments	396,156	459,133
Later than one year and not later than two years \| Liquidity risk
Net undiscounted cash flows
Leases	7,349	5,897
Debt instruments	423,235	37,749
Financial loans from government agencies	4,336	4,304
Payable to non-current asset suppliers	183	135
Contingent consideration	3,930	10,684
Tolling agreement liability	7,110	2,367
Contractual undiscounted payments	446,143	61,136
Later than two years and not later than five years [member] \| Liquidity risk
Net undiscounted cash flows
Bank borrowings	2,544	3,670
Leases	6,888	3,251
Debt instruments		493,585
Financial loans from government agencies	41,239	245
Contingent consideration	1,257	6,844
Tolling agreement liability	10,665	5,952
Contractual undiscounted payments	62,593	513,547
Later than five years \| Liquidity risk
Net undiscounted cash flows
Bank borrowings	13,230
Leases		1,289
Financial loans from government agencies	2,792
Tolling agreement liability	113,759	18,379
Contractual undiscounted payments	$ 129,781	$ 19,668

Financial risk management - Cha

Financial risk management - Changes in liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in liabilities arising from financing activities [abstract]
Beginning of period	$ 624,635	$ 551,547
Changes from financing cash flows	(136,455)	14,207
Effect of changes in foreign exchange rates	(12,030)	37
Changes in fair value	190	6,462
Interest expense	44,415	42,304
Other changes	21,052	10,078
End of period	541,807	624,635	$ 551,547
Other amounts paid due to net financing activities	(4,003)	(3,755)
Cash flows from (used in) financing activities	(140,458)	10,452	(113,333)
Interest paid		16,705
Proceeds from debt issuance		60,000
Share issuance costs		43,755
Proceeds from equity issuance		40,000
Bank borrowings.
Changes in liabilities arising from financing activities [abstract]
Beginning of period	98,967	107,607
Changes from financing cash flows	(24,529)	(15,604)
Effect of changes in foreign exchange rates	(5,991)	1,927
Interest expense	3,185
Other changes	6,201	5,037
End of period	77,833	98,967	107,607
Obligations under leases
Changes in liabilities arising from financing activities [abstract]
Beginning of period	18,358	22,536
Changes from financing cash flows	(11,590)	(11,232)
Effect of changes in foreign exchange rates	(750)	(1,188)
Interest expense	1,587
Other changes	14,266	8,242
End of period	21,871	18,358	22,536
Debt instruments
Changes in liabilities arising from financing activities [abstract]
Beginning of period	440,297	357,508
Changes from financing cash flows	(136,260)	43,295
Changes in fair value	190	6,462
Interest expense	34,404	36,233
Other changes	4,811	(3,201)
End of period	343,442	440,297	357,508
Financial loans from government agencies
Changes in liabilities arising from financing activities [abstract]
Beginning of period	67,013	63,896
Changes from financing cash flows	35,924	(2,252)
Effect of changes in foreign exchange rates	(5,289)	(702)
Interest expense	5,239	6,071
Other changes	(4,226)
End of period	$ 98,661	$ 67,013	$ 63,896

Fair value measurement - Estima

Fair value measurement - Estimate of fair value (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other financial asset
Other financial assets	$ 14,189	$ 4,195
At fair value
Other liabilities
Contingent consideration in a business combination	(5,838)	(26,527)
Level 3 of fair value hierarchy \| At fair value
Other liabilities
Contingent consideration in a business combination	(5,838)	(26,527)
Equity securities \| At fair value
Other financial asset
Other financial assets	936	847
Equity securities \| Level 1 of fair value hierarchy \| At fair value
Other financial asset
Other financial assets	$ 936	$ 847

Fair value measurement - Signif

Fair value measurement - Significant unobservable inputs (Details) - Recurring - Level 3 of fair value hierarchy - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of changes in fair value measurement, liabilities [abstract]
Fair value, Beginning balance	$ (26,527)	$ (16,632)
Changes in fair value through profit or loss	1,758	(13,168)
Payments	18,931	3,273
Fair value, Ending balance	$ (5,838)	$ (26,527)

Assets and disposal groups cl_2

Assets and disposal groups classified as held for sale and discontinued operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2020
Disclosure of analysis of single amount of discontinued operations [line items]
Assets and disposal groups classified as held for sale	$ 1,067,000
Impairment charges		$ 71,929,000
Non-current assets held for sale [member]
Disclosure of analysis of single amount of discontinued operations [line items]
Number of offers to sell assets	2
Assets and disposal groups classified as held for sale	1,067,000
Impairment charges	5,994,000
Carrying value of facility before impairment analysis	$ 7,061,000
Spanish Hydroelectric Business, Disposal Group And Discontinued Operation
Disclosure of analysis of single amount of discontinued operations [line items]
Purchase price adjustment on sale		$ 5,399,000

Assets and disposal groups cl_3

Assets and disposal groups classified as held for sale and discontinued operations - Profit and loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Profit (loss) [abstract]
Sales	$ 2,597,916	$ 1,778,908	$ 1,144,434
Raw materials and energy consumption for production	(1,285,086)	(1,184,896)	(835,486)
Other operating income	147,356	110,085	33,627
Staff costs	(314,810)	(280,917)	(214,782)
Other operating expense	(346,252)	(296,809)	(132,059)
Depreciation and amortization charges, operating allowances and write-downs	(81,559)	(97,328)	(108,189)
Operating (loss) profit	660,547	31,386	(184,350)
(Loss) Profit before tax	$ 591,811	$ (119,936)	(222,420)
Gain on sale of discontinued operation			(5,399)
Profit (loss) attributable to Discontinued Operations			(5,399)
Spanish Hydroelectric Business, Disposal Group And Discontinued Operation
Profit (loss) [abstract]
Gain on sale of discontinued operation			(5,399)
Profit (loss) attributable to Discontinued Operations			$ (5,399)

Assets and disposal groups cl_4

Assets and disposal groups classified as held for sale and discontinued operations - EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Profit (loss) attributable to Discontinued Operations			$ (5,399)
Denominator:
Weighted average basic shares outstanding	187,815,672	176,508,144	169,269,281
Basic (loss) earnings per ordinary share - discontinued operations (US$)			$ (0.03)
Numerator:
Profit (loss) attributable to Discontinued Operations			$ (5,399)
Denominator:
Weighted average basic shares outstanding	187,815,672	176,508,144	169,269,281
Weighted average dilutive shares outstanding	189,625,195	176,508,144	169,269,281
Diluted earnings (loss) per ordinary share- discontinued operations			$ (0.03)
Spanish Hydroelectric Business, Disposal Group And Discontinued Operation
Numerator:
Profit (loss) attributable to Discontinued Operations			$ (5,399)
Denominator:
Weighted average basic shares outstanding			169,269,281
Basic (loss) earnings per ordinary share - discontinued operations (US$)			$ (0.03)
Numerator:
Profit (loss) attributable to Discontinued Operations			$ (5,399)
Denominator:
Weighted average basic shares outstanding			169,269,281
Weighted average dilutive shares outstanding			169,269,281
Diluted earnings (loss) per ordinary share- discontinued operations			$ (0.03)

Assets and disposal groups cl_5

Assets and disposal groups classified as held for sale and discontinued operations - Cash flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Profit (loss)	$ 443,828	$ (115,374)	$ (249,758)
Adjustments to reconcile net profit (loss) to net cash provided by operating activities:
Income tax expense (benefit)	147,983	(4,562)	21,939
Depreciation and amortization charges, operating allowances and write-downs	81,559	97,328	108,189
Gains on disposals of non-current and financial assets			5,399
Changes in operating assets and liabilities:
Decrease (increase) in inventories	(220,823)	(60,296)	114,585
Other, net	(56,677)	29,803	14,473
Income tax paid	(80,524)	(3,794)	11,831
Net cash provided by (used in) operating activities	405,018	(1,341)	154,268
Payments due to investments:
Property, plant and equipment	(52,153)	(27,597)	(30,257)
Net cash provided (used) by investing activities	(51,774)	(23,848)	(31,940)
Cash flows from financing activities:
Other inflows (outflows) of cash, classified as financing activities	678		(2,863)
Net cash provided (used) by financing activities	(140,458)	10,452	(113,333)
Total net cash flows for the year	212,786	(14,737)	8,995
Beginning balance of cash and cash equivalents	114,391
Ending balance of cash and cash equivalents	$ 317,935	114,391
Spanish Hydroelectric Business, Disposal Group And Discontinued Operation
Cash flows from operating activities:
Profit (loss)			(5,399)
Adjustments to reconcile net profit (loss) to net cash provided by operating activities:
Gains on disposals of non-current and financial assets			5,399
Changes in operating assets and liabilities:
Other, net			(24)
Net cash provided by (used in) operating activities			(24)
Cash flows from financing activities:
Total net cash flows for the year			(24)
Beginning balance of cash and cash equivalents		$ 0	24
Ending balance of cash and cash equivalents			$ 0

Other disclosures (Details)

Other disclosures (Details) $ in Thousands	12 Months Ended
Other disclosures (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Other Disclosures [Abstract]
Restricted net assets	$ 496,983
Percentage of restricted net assets held to disclose separate entity	25%

Events after the reporting pe_2

Events after the reporting period (Details) $ / shares in Units, $ in Thousands, € in Millions			12 Months Ended
	Feb. 28, 2023 shares	Feb. 10, 2023 EUR (€)	Dec. 31, 2022 shares	Mar. 01, 2023 USD ($) $ / shares
Grupo Villar Mir SAU
Events after the reporting period
The number of beneficially shares owned \| shares			81,924,822
Outstanding shares owned by main shareholders (as a percentage)			43.70%
Modification of Contractual Terms in REINDUS Loan
Events after the reporting period
Early repayment of debt \| €		€ 16.3
Repurchase of Reinstated Senior Notes
Events after the reporting period
Debt repurchase amount				$ 25,700
Accrued interest				207
Debt repurchase, face amount				$ 26,100
Debt repurchase price per share \| $ / shares				$ 1.01
Major ordinary share transactions \| Grupo Villar Mir SAU
Events after the reporting period
The number of beneficially shares owned \| shares	76,265,434
Outstanding shares owned by main shareholders (as a percentage)	40.72%

Schedule I - Financial Position

Schedule I - Financial Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Non-current assets
Intangible assets	$ 111,797	$ 100,642	$ 20,756
Property, plant and equipment	486,247	554,914	620,034
Total non-current assets	671,019	719,064
Current assets
Trade and other receivables	425,474	381,073
Other current assets	30,608	8,408
Cash and cash equivalents	317,935	114,391
Total current assets	1,286,821	804,274
Total assets	1,957,840	1,523,338
Equity
Share capital	1,962	1,962
Total equity	756,813	320,031	$ 365,719
Non-current liabilities
Lease liabilities	12,942	9,968
Other non-current liabilities	12	1,476
Total non-current liabilities	522,530	549,681
Current liabilities
Debt instruments	12,787	35,359
Lease liabilities	8,929	8,390
Trade and other payables	219,666	206,000
Current income tax liabilities	53,234	1,775
Other current liabilities	104,563	74,328
Total current liabilities	678,497	653,626
Total equity and liabilities	$ 1,957,840	1,523,338
Percentage of restricted net assets held to disclose separate entity	25%
Ferroglobe PLC
Non-current assets
Investment in subsidiaries	$ 629,284	629,284
Intangible assets	522
Property, plant and equipment	449	105
Trade and other receivables from subsidiaries	263,058	227,865
Total non-current assets	893,313	857,254
Current assets
Trade and other receivables	797	350
Trade and other receivables from subsidiaries	118,210	159,874
Other current assets	435	441
Cash and cash equivalents	605	1,311
Total current assets	120,047	161,976
Total assets	1,013,360	1,019,230
Equity
Share capital	1,964	1,964
Other reserves	(158,958)	(164,783)
Retained earnings	734,095	774,531
Total equity	577,101	611,712
Non-current liabilities
Lease liabilities	372	25
Trade and other payables	183,721
Other non-current liabilities	11
Total non-current liabilities	184,104	25
Current liabilities
Debt instruments		2,181
Lease liabilities	550	568
Trade and other payables	10,634	11,221
Trade and other payables to subsidiaries	240,753	392,803
Current income tax liabilities	115	490
Other current liabilities	103	230
Total current liabilities	252,155	407,493
Total equity and liabilities	$ 1,013,360	$ 1,019,230

Schedule I - Income Statement (

Schedule I - Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Profit (loss) [abstract]
Other operating income	$ 147,356	$ 110,085	$ 33,627
Staff costs	(314,810)	(280,917)	(214,782)
Other operating expense	(346,252)	(296,809)	(132,059)
Depreciation and amortization charges, operating allowances and write-downs	(81,559)	(97,328)	(108,189)
Finance income	2,274	253	177
Finance costs	(61,015)	(149,189)	(66,968)
Exchange differences	(9,995)	(2,386)	25,553
Financial derivative gain			3,168
(Loss) Profit before tax	591,811	(119,936)	(222,420)
Income tax benefit (expense)	(147,983)	4,562	(21,939)
Total (Loss) Profit for the year	443,828	(115,374)	(249,758)
Separate [member]
Profit (loss) [abstract]
Other operating income	41,816	32,037	13,618
Staff costs	(5,864)	(4,983)	(6,379)
Other operating expense	(51,864)	(36,859)	(18,166)
Depreciation and amortization charges, operating allowances and write-downs	(104)	(109)	(3)
Finance income	4,029	77,232	8,976
Finance costs	(26,444)	(96,581)	(22,069)
Exchange differences	(2,005)	(15,227)	25,516
Financial derivative gain			3,168
(Loss) Profit before tax	(40,436)	(44,490)	4,661
Income tax benefit (expense)			(515)
Total (Loss) Profit for the year	$ (40,436)	$ (44,490)	$ 4,146

Schedule I - Statement of Cash

Schedule I - Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Profit (Loss) for the year	$ 443,828	$ (115,374)	$ (249,758)
Adjustments to reconcile net profit (loss) to net cash provided by operating activities:
Income tax expense	147,983	(4,562)	21,939
Depreciation and amortization charges, operating allowances and write-downs	81,559	97,328	108,189
Finance income (loss)	(2,274)	(253)	(177)
Finance costs	61,015	149,189	66,968
Exchange differences	9,995	2,386	(25,553)
Financial derivative (gain) loss			(3,168)
Share-based compensation	5,836	3,627	2,017
Changes in operating assets and liabilities:
(Increase) decrease in trade and other receivables	(72,558)	(161,434)	71,034
Increase (decrease) in trade and other payables	30,640	64,382	(55,405)
Other changes in operating assets and liabilities	(56,677)	29,803	14,473
Net cash provided by (used in) operating activities	405,018	(1,341)	154,268
Payments due to investments:
Other intangible assets	(1,147)		(2,654)
Net cash provided (used) by investing activities	(51,774)	(23,848)	(31,940)
Cash flows from financing activities:
Proceeds from equity issuance		40,000
Borrowings	898,586	659,083	177,593
Repayment of debt instruments	(84,823)
Amounts paid due to leases	(11,590)	(11,232)	(10,315)
Interest paid	(60,822)	(22,177)	(37,912)
Net cash provided (used) by financing activities	(140,458)	10,452	(113,333)
Total net cash flows for the year	212,786	(14,737)	8,995
Beginning balance of cash and cash equivalents	116,663	131,557	123,175
Exchange differences on cash and cash equivalents in foreign currencies	(6,506)	(157)	(613)
Ending balance of cash and cash equivalents	322,943	116,663	131,557
Separate [member]
Cash flows from operating activities:
Profit (Loss) for the year	(40,436)	(44,490)	4,146
Adjustments to reconcile net profit (loss) to net cash provided by operating activities:
Income tax expense			515
Depreciation and amortization charges, operating allowances and write-downs	104	109	3
Finance income (loss)	(4,029)	(77,232)	(8,976)
Finance costs	26,444	96,581	22,069
Exchange differences	2,005	15,227	(25,516)
Financial derivative (gain) loss			(3,168)
Share-based compensation	5,836	3,627	2,017
Changes in operating assets and liabilities:
(Increase) decrease in trade and other receivables	7,138	1,431	(21,300)
Increase (decrease) in trade and other payables	5,205	(22,169)	47,456
Other changes in operating assets and liabilities	(492)	(548)	(10,146)
Net cash provided by (used in) operating activities	1,775	(27,464)	7,100
Payments due to investments:
Other intangible assets	(522)
Net cash provided (used) by investing activities	(522)
Cash flows from financing activities:
Payment for equity issuance costs		(6,647)
Proceeds from equity issuance		41,440
Borrowings		218
Repayment of debt instruments	(2,181)
Amounts paid due to leases	(123)	(111)	(733)
Interest paid		(7,031)	(6,590)
Net cash provided (used) by financing activities	(2,304)	27,869	(7,323)
Total net cash flows for the year	(1,051)	405	(223)
Beginning balance of cash and cash equivalents	1,311	1,065	1,199
Exchange differences on cash and cash equivalents in foreign currencies	345	(159)	89
Ending balance of cash and cash equivalents	$ 605	$ 1,311	$ 1,065

Schedule I - Notes to Appendix

Schedule I - Notes to Appendix (Details) € in Millions		12 Months Ended
Schedule I - Notes to Appendix (Details) € in Millions	Jul. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Jul. 21, 2022 USD ($)	Mar. 03, 2022 EUR (€)	Feb. 15, 2017 USD ($)
Senior Notes due 2022
Debt Instruments
Principal amount						$ 350,000,000
Fixed Interest Rate						9.375%
Secured Reinstated Senior Notes [Member]
Debt Instruments
Principal amount	$ 345,058,000
Fixed Interest Rate	9.375%	9.375%	9.375%
Exchange Percentage	98.588%
Conversion Price	$ 1,000
Cash fee	$ 51,611,000
Ferroglobe PLC intercompany long-term obligations		$ 147,800,000
Ferroglobe PLC guarantor obligation		345,000,000
Sociedad Estatal de Participaciones Industriales loan
Debt Instruments
Principal amount \| €					€ 34.5
Ferroglobe PLC guarantor obligation \| €			€ 34.5
Super Senior Notes
Debt Instruments
Ferroglobe PLC guarantor obligation				$ 60,000,000
NMTC Program \| Maximum
Debt Instruments
Ferroglobe PLC guarantor obligation		7,000,000
Revolving Credit Facility
Debt Instruments
Ferroglobe PLC intercompany long-term obligations		25,500,000
Loan Facility due June 2025
Debt Instruments
Ferroglobe PLC intercompany long-term obligations		$ 10,300,000