5E Advanced Materials (FEAM) 10-K/A 2 Feb 24 2023 FY Annual report (amended) Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Feb. 02, 2024	Dec. 31, 2022
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	true
Entity Registrant Name	5E ADVANCED MATERIALS, INC.
Entity Central Index Key	0001888654
Document Annual Report	true
Document Period End Date	Jun. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-30
Document Transition Report	false
Securities Act File Number	001-41279
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-3426517
Entity Address, Address Line One	9329 Mariposa Road
Entity Address, Address Line Two	Suite 210
Entity Address, City or Town	Hesperia
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92344
City Area Code	442
Local Phone Number	221-0225
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	FEAM
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Public Float				$ 304.4
Entity Common Stock, Shares Outstanding			63,285,836
Auditor Name	PricewaterhouseCoopers, LLP	BDO USA, LLP
Auditor Firm ID	238	243
Auditor Location	Denver, Colorado	Spokane, Washington
Amendment Description	Explanatory NoteAmendment No. 2 to Form 10-K. In connection with the amendment of our Technical Report Summary, this Amendment No. 2 on Form 10-K/A amends and restates only Part I, Items 1 and 2 (solely to update our disclosures regarding our mineral resource estimate), amends Part IV, Item 15, and amends and replaces the Technical Report Summary included as Exhibit 96.1 to both our Form 10-K originally filed with the SEC on August 30, 2023 (the "Original Form 10-K") and our Amendment No. 1 to Form 10-K/A filed with the SEC on October 27, 2023 (the "Amendment No. 1 to Form 10-K"). No other Items included in either the Original Form 10-K or Amendment No. 1 to Form 10-K have been amended or revised in this Amendment No. 2 to Form 10-K, and all such other Items shall be as set forth in either the Original Form 10-K filing or Amendment No. 1 to Form 10-K, respectively. In addition, no other information has been updated for any subsequent events occurring after August 30, 2023, or October 27, 2023, the dates the Original Form 10-K and Amendment No. 1 to Form 10-K were filed with the SEC, respectively. As used in this Amendment No. 2 to Form 10-K, references to “5E,” the “Company,” “we,” “our,” or “us” mean 5E Advanced Materials, Inc., our predecessors and consolidated subsidiaries, or any one or more of them, as the context requires.