China XD Plastics (CXDC) 10-Q 14 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 10, 2020
Document And Entity Information Abstract
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Entity Registrant Name	China XD Plastics Co Ltd
Entity Central Index Key	0001353970
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Units Outstanding		66,948,841
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	NV
Entity File Number	000-53131
Document Quarterly Report	true
Document Transition Report	false

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 3,167,943	$ 17,201,775
Restricted cash	164,738,656	211,231,244
Time deposits	122,890,035
Accounts receivable, net of allowance for doubtful accounts	184,384,982	222,072,053
Inventories	678,543,004	642,509,534
Prepaid expenses and other current assets	405,418,146	171,848,122
Total current assets	1,559,142,766	1,264,862,728
Property, plant and equipment, net	813,776,106	830,319,716
Long-term prepayments to equipment and construction suppliers	502,049,222	495,570,421
Operating lease right-of-use assets, net	43,107,997	44,149,955
Other non-current assets	736,988	979,428
Total assets	2,918,813,079	2,635,882,248
Current liabilities:
Short-term bank loans, including current portion of long-term bank loans	770,943,894	680,174,859
Bills payable	331,110,954	400,671,063
Accounts payable	48,199,950	57,458,673
Amounts due to related parties	25,876,162	26,251,919
Income taxes payable	28,763,054	26,458,837
Operating lease liabilities, current	1,413,018	1,388,555
Accrued expenses and other current liabilities	76,017,727	86,550,388
Total current liabilities	1,282,324,759	1,278,954,294
Long-term bank loans, excluding current portion	575,452,134	322,456,413
Deferred income	88,298,695	92,639,620
Operating lease liabilities, non-current	14,250,090	14,429,434
Other non-current liabilities	81,846,026	91,028,376
Total liabilities	2,042,171,704	1,799,508,137
Stockholders' equity:
Series B preferred stock	100	100
Common stock, US$0.0001 par value, 500,000,000 shares authorized, 66,969,841 shares issued, 66,948,841 shares outstanding as of June 30, 2020 and December 31, 2019, respectively	6,697	6,697
Treasury stock, 21,000 shares at cost	(92,694)	(92,694)
Additional paid-in capital	184,208,447	184,208,447
Retained earnings	726,696,685	720,159,368
Accumulated other comprehensive loss	(80,085,057)	(67,907,807)
Total equity attributable to China XD Plastics Company Limited	830,734,178	836,374,111
Noncontrolling interest	45,907,197
Total stockholders' equity	876,641,375	836,374,111
Commitments and contingencies
Total liabilities and stockholders' equity	$ 2,918,813,079	$ 2,635,882,248

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	66,969,841	66,969,841
Common stock, shares outstanding	66,948,841	66,948,841
Treasury shares, shares	21,000	21,000

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Revenues	$ 283,223,987	$ 463,073,880	$ 428,061,665	$ 764,539,887
Cost of revenues	(243,332,297)	(397,813,194)	(382,932,118)	(648,949,533)
Gross profit	39,891,690	65,260,686	45,129,547	115,590,354
Selling expenses	(46,149)	(247,410)	(162,060)	(525,230)
General and administrative expenses	(3,677,030)	(5,764,593)	(9,707,156)	(14,539,978)
Research and development expenses	(5,803,128)	(9,551,721)	(9,644,920)	(19,613,907)
Total operating expenses	(9,526,307)	(15,563,724)	(19,514,136)	(34,679,115)
Operating income	30,365,383	49,696,962	25,615,411	80,911,239
Interest income	75,426	454,357	341,048	890,136
Interest expense	(15,914,544)	(12,059,242)	(33,830,733)	(29,559,519)
Foreign currency exchange gains (losses)	(177,717)	3,050,612	2,190,422	909,747
Gains on disposal of a subsidiary				518,491
Government grant	1,342,273	1,611,216	11,255,210	3,706,153
Total non-operating expense, net	(14,674,562)	(6,943,057)	(20,074,053)	(23,534,992)
Income before income taxes	15,690,821	42,753,905	5,541,358	57,376,247
Income tax benefit (expense)	1,884,990	(2,642,588)	995,959	(6,284,215)
Net income	17,575,811	40,111,317	6,537,317	51,092,032
Net income attributable to noncontrolling interest
Net income attributable to China XD Plastics Company Limited	$ 17,575,811	$ 40,111,317	$ 6,537,317	$ 51,092,032
Earnings per common share:
Basic and diluted	$ 0.26	$ 0.60	$ 0.1	$ 0.76
Net income	$ 17,575,811	$ 40,111,317	$ 6,537,317	$ 51,092,032
Other comprehensive income (loss)
Foreign currency translation adjustment, net of nil income taxes	406,160	(16,713,085)	(12,177,250)	(2,042,284)
Comprehensive income (loss)	17,981,971	23,398,232	(5,639,933)
Comprehensive income (loss) attributable to noncontrolling interest
Comprehensive income (loss) attributable to China XD Plastics Company Limited	$ 17,981,971	$ 23,398,232	$ (5,639,933)	$ 49,049,748

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net cash (used in) provided by operating activities	$ (310,823,681)	$ 92,864,032
Cash flows from investing activities:
Purchase of time deposits	(123,811,692)
Purchase of and deposits for property, plant and equipment	(24,747,038)	(52,396,204)
Proceeds from sales of a subsidiary		7,376,807
Cash disposed for sales of a subsidiary		(3,202)
Net cash used in investing activities	(148,558,730)	(45,022,599)
Cash flows from financing activities:
Proceeds from bank borrowings	638,701,758	1,400,043,299
Repayments of bank borrowings	(283,097,285)	(1,307,643,944)
Capital injection from noncontrolling interests	46,251,494
Proceeds from interest-free advances from related parties	1,138,498	67,389,859
Repayments of interest-free advances from related parties	(1,138,498)	(65,152,460)
Payments of issuance cost for syndicated loans	(126,012)
Net cash provided by financing activities	401,729,955	94,636,754
Effect of foreign currency exchange rate changes on cash, cash equivalents and restricted cash	(2,873,964)	(2,597,145)
Net (decrease) increase in cash, cash equivalents and restricted cash	(60,526,420)	139,881,042
Cash, cash equivalents and restricted cash at beginning of period	228,433,019	366,991,840
Cash, cash equivalents and restricted cash at end of period	167,906,599	506,872,882
Supplemental disclosure of cash flow information:
Interest paid, net of capitalized interest	33,303,914	29,586,602
Income taxes paid	2,256,375	6,067,051
Non-cash investing and financing activities:
Accrual for purchase of equipment and construction included in accrued expenses and other current liabilities	5,890,438	1,721,729
Reclassification of mandatorily redeemable noncontrolling interest to noncontrolling interest	$ 45,907,197

UNAUDITED CONDENSED CONSOLIDA_5

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 3,167,943	$ 194,763,132
Restricted cash	164,738,656	312,109,750
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 167,906,599	$ 506,872,882

Basis of presentation and signi

Basis of presentation and significant concentrations and risks	6 Months Ended
	Jun. 30, 2020
Basis of presentation, significant concentrations and risks [Abstract]
Basis of presentation and significant concentrations and risks	Note 1 – Basis of presentation and significant concentrations and risks (a) Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted as permitted by rules and regulations of the United States Securities and Exchange Commission ("SEC"). The condensed consolidated balance sheet as of December 31, 2019 was derived from the audited consolidated financial statements of China XD Plastics Company Limited ("China XD") and subsidiaries (collectively, the "Company"). The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated balance sheet of the Company as of December 31, 2019, and the related consolidated statements of comprehensive income, changes in equity and cash flows for the year then ended, included in the Company's Annual Report on Form 10-K filed with the SEC on June 1, 2020. In the opinion of the management, all adjustments (which include normal recurring adjustments) necessary to present a fair statement of the financial position as of June 30, 2020, the results of operations and cash flows for the six-month periods ended June 30, 2020 and 2019, have been made. The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include the recoverability of the carrying amounts of property, plant and equipment, the realizability of inventories, the useful lives of property, plant and equipment, the collectability of accounts receivable, the accruals for tax uncertainties and other contingencies, and the discount rate used to determine the present value of the lease payments. The current economic environment has increased the degree of uncertainty inherent in those estimates and assumptions. (b) Accounting pronouncement adopted in 2020 In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements on fair value measurements. The Company has adopted the standard on January 1, 2020 and there was no material impact on its consolidated financial statements as a result of the adoption. (c) Significant concentrations and risks Sales concentration The Company sells its products primarily through approved distributors in the People's Republic of China (the "PRC"). The Company's sales are highly concentrated. Sales to distributors individually exceeded 10% of the Company's revenues for the three-month and six-month periods ended June 30, 2020 and 2019, are as follows: Three-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 41,857,743 14.8 % 58,501,659 12.6 % Distributor B, located in PRC 33,149,907 11.7 % 36,906,778 * Distributor C, located in PRC 32,613,997 11.5 % 33,077,889 * Distributor D, located in PRC 30,205,164 10.7 % 27,263,818 * * Less than 10% Six-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 67,770,607 15.8 % 115,001,391 15.0 % Distributor B, located in PRC 47,135,094 11.0 % 74,605,665 * Distributor C, located in PRC 46,073,857 10.8 % 55,046,388 * Distributor D, located in PRC 45,647,181 10.7 % 54,588,405 * * Less than 10% The Company expects revenues from these distributors to continue to represent a substantial portion of its revenue in the future. Any factor adversely affecting the automobile industry in the PRC or the business operations of these customers will have a material effect on the Company's business, financial position and results of operations. Purchase concentration of raw materials The principal raw materials used for the Company's production of modified plastics products are plastic resins, such as polypropylene, ABS and nylon. The Company purchases substantially all of its raw materials through a limited number of distributors. Raw material purchases from these distributors, which individually exceeded 10% of the Company's total raw material purchases, accounted for approximately 35.5% (three distributors) and 31.7% (three distributors) for the three-month periods ended June 30, 2020 and 2019, respectively, and 32.0% (three distributors) and 33.2% (three distributors) of the Company's total raw materials purchases for the six-month periods ended June 30, 2020 and 2019, respectively. Management believes that other suppliers could provide similar raw materials on comparable terms. A change in suppliers, however, could cause a delay in manufacturing and a possible loss of sales, which would adversely affect the Company's business, financial position and results of operations. Cash concentration Cash and cash equivalents, restricted cash, and time deposits mentioned below maintained at banks consist of the following: June 30, 2020 December 31, 2019 US$ US$ Renminbi (“RMB”) denominated bank deposits with: Financial Institutions in the PRC 288,607,567 226,488,069 Financial Institutions in Hong Kong Special Administrative Region ("Hong Kong SAR") 8,360 8,134 Financial Institution in Dubai, UAE 329 — U.S. dollar denominated bank deposits with: Financial Institution in the U.S. 5,848 3,057 Financial Institutions in the PRC 16,784 16,868 Financial Institution in Hong Kong SAR 483,590 590,131 Financial Institution in Macau Special Administrative Region ("Macau SAR") 1,290,068 1,288,792 Financial Institution in Dubai, UAE 166,837 4,549 HK dollar denominated bank deposits with: Financial institution in Hong Kong SAR 156 156 Dirham denominated bank deposits with: Financial institution in Dubai, UAE 217,095 33,263 The bank deposits with financial institutions in the PRC are insured by the government authority for up to RMB500,000. The bank deposits with financial institutions in the Hong Kong SAR are insured by the government authority for up to HK$500,000. The bank deposits with financial institutions in the Macau SAR are insured by the government authority for up to MOP$500,000. The bank deposits with financial institutions in the Dubai, UAE are not insured by the government authority. Total bank deposits amounted to US$1,034,565 and US$1,063,709 are insured as of June 30, 2020 and December 31, 2019, respectively. The Company has not experienced any losses in uninsured bank deposits and does not believe that it is exposed to any significant risks on cash held in bank accounts. To limit exposure to credit risk, the Company primarily places bank deposits with large financial institutions in the PRC, Hong Kong SAR, Macau SAR and Dubai, UAE with acceptable credit rating. Cash deposits in bank that are restricted as to withdrawal or usage for up to 12 months are reported as restricted cash in the consolidated balance sheets. Short-term bank deposits that are pledged as collateral for bills payable relating to purchases of raw materials are reported as restricted cash and amounted to US$105,763,684 and US$151,498,873 as of June 30, 2020 and December 31, 2019, respectively. Upon maturity and repayment of the bills payable, which is generally within 6 months, the cash becomes available for use by the Company. Short-term bank deposits that are related to government grant are reported as restricted cash and amounted to US$68,909 and US$69,879 as of June 30, 2020 and December 31, 2019, respectively. Short-term bank deposits that are pledged for the US$135.0 million syndicated loans obtained from a consortium of banks led by the Industrial and Commercial Bank of China (Macau) Limited are reported as restricted cash and amounted to US$57,493,534 and US$58,229,047 as of June 30, 2020 and December 31, 2019, respectively, for details of the syndicated loans please refer to note 7. Short-term bank deposits that are pledged as collateral to settle US$14.1 million of short-term bank loans obtained from Postal Savings Bank of China are reported as restricted cash and amounted to US$1,412,529 and US$1,433,445 as of June 30, 2020 and December 31, 2019, respectively.

Accounts receivable

Accounts receivable	6 Months Ended
	Jun. 30, 2020
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Accounts receivable	Note 2 – Accounts receivable Accounts receivable consists of the following: June 30, 2020 December 31, 2019 US$ US$ Accounts receivable 247,233,447 284,921,071 Allowance for doubtful accounts (62,848,465 ) (62,849,018 ) Accounts receivable, net 184,384,982 222,072,053 As of June 30, 2020 and December 31, 2019, the accounts receivable balances also include notes receivable in the amount of US$35,313 and US$107,845, respectively. As of June 30, 2020 and December 31, 2019, US$201,224,940 and US$92,198,221, respectively, of accounts receivable are pledged for the short-term bank loans and bills payable. There was no accrual of additional provision or write-off of accounts receivable for the three-month and six-month periods ended June 30, 2020 and 2019. As of December 31, 2019, accounts receivable of US$62.8 million from the Company’s customer in UAE was overdue and the customer failed to make payments under the agreed extended repayment plan. Based on its assessment of the collectability of the amounts due from the customer, the Company provided an allowance for doubtful accounts of US$62.8 million for the year ended December 31, 2019. The following table provides an analysis of the aging of accounts receivable as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 US$ US$ Aging: – current 164,687,690 189,180,366 – 1-3 months past due 2,251,085 45,363,405 – 4-6 months past due 24,774,501 28,865,350 – 7-12 months past due 41,495,498 5,703,612 – greater than one year past due 14,024,673 15,808,338 Total accounts receivable 247,233,447 284,921,071

Inventories

Inventories	6 Months Ended
	Jun. 30, 2020
Inventory, Net [Abstract]
Inventories	Note 3 – Inventories Inventories consist of the following: June 30, 2020 December 31, 2019 US$ US$ Raw materials and semi-finished goods 622,002,570 637,278,817 Finished goods 56,540,434 5,230,717 Total inventories 678,543,004 642,509,534 As of June 30, 2020 and December 31, 2019, the Company pledged inventories in amount of approximately US$39.6 million and US$40.1 million, respectively, for a one-year short-term loan and bills payable, details refer to Note 7. There were no write down of inventories for the three-month and six-month periods ended June 30, 2020 and 2019.

Prepaid expenses and other curr

Prepaid expenses and other current assets	6 Months Ended
	Jun. 30, 2020
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid expenses and other current assets	Note 4 – Prepaid expenses and other current assets Prepaid expenses and other current assets consist of the following: June 30, 2020 December 31, 2019 US$ US$ Advances to suppliers (i) 91,593,394 118,166,925 Amounts due from third parties (ii) 308,491,066 — Value added taxes receivables (iii) 3,072,424 6,239,719 Receivables from Hong Kong Grand Royal Trading Co., Ltd. (iv) — 42,566,949 Interest receivable (v) 491,601 615,049 Others (vi) 1,769,661 4,259,480 Total prepaid expenses and other current assets 405,418,146 171,848,122 (i) Advances to suppliers are the advances to purchase raw materials. (ii) During the three-month period ended June 30, 2020, the Company has lent RMB1,284.8 million (equivalent to US$181.5 million) to Heilongjiang Xinda Enterprise Group Shanghai New Materials Sales Company Limited (“Shanghai Sales”), a company formerly owned by the Company and was disposed in December 2018, RMB612.2 million (equivalent to US$86.5 million) to Heilongjiang Xinda Macromolecule Composite Materials Company Limited (“Macromolecule Composite Materials”), a company established by Shanghai Sales (details refer to note 9), and RMB286.7 million (equivalent to US$40.5 million) to Guangzhou Peiqu International Trading LLC, the Company’s supplier and a related party of Hong Kong Grand Royal Trading Co., Ltd., as interest-free advances. The Company has subsequently collected the RMB2,183.7 million (equivalent to US$308.5 million) from the above third parties in July and August 2020. (iii) Value added taxes receivables mainly represent the input taxes on purchasing equipment by Heilongjiang Xinda Enterprise Group Company Limited (“HLJ Xinda Group”) and Sichuan Xinda Enterprise Group Company Limited (“Sichuan Xinda”), which are to be net off with output taxes. Value added taxes receivables were recognized in operating activities in consolidated statements of cash flows. (iv) Hong Kong Grand Royal Trading Co., Ltd. (“Hong Kong Grand Royal”) is a raw material supplier of AL Composites Materials FZE ("Dubai Xinda"). Dubai Xinda has prepaid US$48.2 million to Hong Kong Grand Royal in 2017 for purchase of raw materials. Due to the price fluctuation of raw materials, Hong Kong Grand Royal could not purchase and deliver the raw materials to Dubai Xinda. In July 2019, both parties entered into a supplemental agreement to cancel the original purchase agreements and Hong Kong Grand Royal shall settle the advance payment. The US$42.6 million advance payment as of December 31, 2019 was settled during the six-month period ended June 30, 2020. (v) Interest receivable mainly represents interest income accrued from time deposits and restricted cash. (vi) Others mainly include prepaid miscellaneous service fee, staff advance and prepaid rental fee.

Property, plant and equipment,

Property, plant and equipment, net	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Property, plant and equipment, net	Note 5 – Property, plant and equipment, net Property, plant and equipment consist of the following: June 30, 2020 December 31, 2019 US$ US$ Machinery, equipment and furniture 518,520,814 575,317,840 Motor vehicles 1,799,529 1,709,182 Workshops and buildings 154,518,665 156,256,761 Construction in progress 361,737,754 335,245,525 Total property, plant and equipment 1,036,576,762 1,068,529,308 Less accumulated depreciation (222,800,656 ) (238,209,592 ) Property, plant and equipment, net 813,776,106 830,319,716 For the three-month period ended June 30, 2020 and 2019, the Company capitalized US$1,304,561 and US$357,175 of interest costs as a component of the cost of construction in progress. For the six-month period ended June 30, 2020 and 2019, the Company capitalized US$2,641,600 and US$744,499 of interest costs as a component of the cost of construction in progress. Depreciation expense on property, plant and equipment was allocated to the following expense items: Three-Month Period Ended June 30, 2020 2019 US$ US$ Cost of revenues 11,731,493 13,522,087 General and administrative expenses 603,849 519,248 Research and development expenses 614,016 946,164 Selling expenses 726 454 Total depreciation expense 12,950,084 14,987,953 Six-Month Period Ended June 30, 2020 2019 US$ US$ Cost of revenues 23,988,269 26,981,070 General and administrative expenses 1,214,452 1,205,771 Research and development expenses 1,326,745 1,968,287 Selling expenses 5,222 2,277 Total depreciation expense 26,534,688 30,157,405

Prepayments to equipment and co

Prepayments to equipment and construction suppliers	6 Months Ended
	Jun. 30, 2020
Prepayments to equipment suppliers [Abstract]
Prepayments to equipment suppliers	Note 6 - Prepayments to equipment and construction suppliers June 30, 2020 December 31, 2019 US$ US$ Hailezi (i) 455,858,879 468,529,714 Beijin Construction (ii) 6,863,810 6,795,439 Peaceful Treasure Limited(iii) 21,776,143 19,967,014 Xinda High-Tech (iv) 16,992,725 — Others 557,665 278,254 Total prepayments to equipment and construction suppliers 502,049,222 495,570,421 (i) On September 26, 2016 and February 28, 2017, HLJ Xinda Group entered into equipment purchase contracts with Hailezi for a total consideration of RMB782.2 million (equivalent to US$110.5 million) to purchase storage facility and other equipment, which will be used for upgrading the storage system of warehouse located in Harbin, China. Pursuant to the contracts with Hailezi, HLJ Xinda Group prepaid RMB621.6 million (equivalent to US$87.8 million) during the first quarter of 2017. Due to a redesign of outdoor storage facility in June 2017, HLJ Xinda Group entered into a supplementary agreement with Hailezi, which decreased the original contract amount to RMB283.7 million (equivalent to US$40.1 million). Hailezi refunded RMB369.1 million (equivalent to US$52.1 million) to HLJ Xinda Group on June 22, 2017. On September 25, 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the total contract amount was increased to RMB332.5 million (equivalent to US$47.0 million). As of June 30, 2020, HLJ Xinda Group has prepaid RMB255.0 million (equivalent to US$36.0 million) for the above contracts, of which RMB4.4 million (equivalent to US$0.6 million) was transferred to construction in progress. On July 21, 2017, HLJ Xinda Group entered into three investment agreements with the Management Committee of Harbin Economic- Technological Development Zone with respect to the industrial project for 300,000 metric tons of biological composite materials, the industrial project for upgrading existing equipment for 100,000 metric tons of engineering plastics and the industrial project for a 3D printing intelligent manufacture demonstration factory and a 3D printing display and experience cloud factory (the "HLJ Project"). In order to fulfill the agreements, HLJ Xinda Group entered into an equipment purchase contract with Hailezi to purchase production equipment in November 2017, which will be used for 100,000 metric tons of engineering plastics located in Harbin, for a consideration of RMB939.7 million (equivalent to US$132.7 million). Pursuant to the contract with Hailezi, HLJ Xinda Group has prepaid RMB920.9 million (equivalent to US$130.1 million) in total as of December 31, 2018. During 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the contract amount was increased to RMB958.7 million (equivalent to US$135.4 million). During 2019 and the first quarter of 2020, all equipment has been delivered and the prepayment was transferred to construction in progress. In connection with the HLJ project, in June and July 2018, HLJ Xinda Group entered into two equipment purchase contracts with Hailezi to purchase production equipment, which will be used for 300,000 metric tons of biological based composite material, located in Harbin, for a consideration of RMB1,906.8 million (equivalent to US$269.3 million). Pursuant to the contracts with Hailezi, HLJ Xinda Group has prepaid RMB540.0 million (equivalent to US$76.3 million) as of June 30, 2020. On March 17, 2017, Sichuan Xinda entered into a definitive agreement with the People's Government of Shunqing District, Nanchong City of Sichuan Province for the production of 300,000 metric tons of bio-composite materials and additive manufacturing and 20,000 metric tons of functional masterbatch, a high-end color additive process in plastics manufacturing (the "Nanchong Project"). The Nanchong Project will be located in a land area of 250 mu (equivalent to 41.2 acres), with 215 mu designated for bio-composite materials and additive manufacturing production and 35 mu to be designated for functional masterbatch production. The projected total capital expenditures for the project is approximately RMB2.5 billion (equivalent to US$353.1 million). In connection with the Nanchong Project, Sichuan Xinda entered into equipment purchase contracts with Hailezi to purchase production equipment and testing equipment. Pursuant to the contracts with Hailezi, Sichuan Xinda prepaid RMB1,728.9 million (equivalent to US$244.2 million) in the first quarter of year 2017. In 2017, in order to ensure the traceability of the product and management of supply chain, Sichuan Xinda expected to launch an integrated ERP system, which resulted in the equipment to be purchased under the original contracts with Hailezi not meeting the production requirements. Hailezi agreed to refund the prepayment in the amount of RMB1,704.9 million (equivalent to US$240.8 million) by the end of March 2018, the remaining uncancelled amount is RMB24.0 million (equivalent to US$3.4 million). As of December 31, 2017, Sichuan Xinda signed a supplementary agreement with Hailezi, pursuant to the agreement, Sichuan Xinda agreed to pay RMB12.4 million (equivalent to US$1.8 million) to Hailezi for the compensation of Hailezi due to the termination of the purchase contracts. In January 2018, Hailezi refunded the above-mentioned prepayment. The Company received the testing equipment in the amount of RMB3.2 million (equivalent to US$0.5 million) in November 2018, the remaining balance of the uncancelled prepayment as of June 30, 2020 was RMB20.8 million (equivalent to US$2.9 million). In connection with the Nanchong Project, on June 21, 2018, Sichuan Xinda entered into another equipment purchase contract with Hailezi to purchase production equipment and testing equipment for a consideration of RMB1,900 million (equivalent to US$268.4 million). Pursuant to the contract with Hailezi, Sichuan Xinda has prepaid RMB1,710 million (equivalent to US$241.6 million) as of June 30, 2020. On December 3, 2019, HLJ Xinda Group entered into two equipment purchase contracts with Hailezi to purchase production equipment used to upgrade Qinling Road Factory (“Qinling Road Project”) and Jiangnan Road Factory (“Jiangnan Road Project”) in Harbin. Total consideration is RMB162.0 million (equivalent to US$22.9 million) and RMB713.6 million (equivalent to US$100.8 million) for Qinling Road Project and Jiangnan Road Project respectively. Pursuant to the contracts with Hailezi, HLJ Xinda has prepaid RMB129.6 million (equivalent to US$18.3 million) and RMB570.9 million (equivalent to US$80.6 million) respectively for Qinling Road Project and Jiangnan Road Project as of June 30, 2020. During the six months period ended June 30, 2020, the Company has entered into several equipment purchase contracts with Hailezi. As of June 30, 2020, the prepayment balance for those contracts was US$0.8 million. The table below summarized the balance of prepayments to Hailezi for each of the projects as of June 30, 2020 and December 31, 2019, and the movements of the prepayments: (in millions US$) Year Projects Balance as of December 31, 2019 Prepaid in 2020 Transfer to CIP in 2020 Effect of foreign currency exchange rate changes Balance as of June 30, 2020 2017 Storage system 36.7 - (0.6 ) (0.7 ) 35.4 2017 HLJ Project 5.9 - (5.9 ) - - 2018 HLJ Project 77.4 - - (1.1 ) 76.3 2017 Nanchong Project 3.0 - - (0.1 ) 2.9 2018 Nanchong Project 245.1 - - (3.5 ) 241.6 2019 Qinling Road Project 18.6 - - (0.3 ) 18.3 2019 Jiangnan Road Project 81.8 - - (1.2 ) 80.6 2020 Others - 2.6 (1.8 ) - 0.8 Total 468.5 2.6 (8.3 ) (6.9 ) 455.9 (ii) Since November 15, 2016, Sichuan Xinda entered into decoration contracts with Sichuan Beijin Construction Engineering Company Limited ("Beijin Construction") to perform indoor and outdoor decoration work for a consideration of RMB264.3 million (equivalent to US$37.3 million). Pursuant to the contracts with Beijin Construction, Sichuan Xinda has prepaid RMB122.8 million (equivalent to US$17.3 million) as of June 30, 2020, of which RMB74.0 million (equivalent to US$10.4 million) was transferred to construction in progress. (iii) On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. The Company prepaid RMB33.9 million (equivalent to US$4.8 million) as of June 30, 2020. On May 31, 2019, Dubai Xinda entered into an equipment purchase contract with Peaceful for a total consideration of US$18.8 million to purchase storage and testing equipment. The Company has prepaid US$17.0 million as of June 30, 2020. (iv) On January 10, 2020, Heilongjiang Xinda New Materials Co., Ltd. (“HLJ New Materials”), a subsidiary of the Company, entered into a purchase agreement with Harbin Xinda High-Tech Co., Ltd. (“Xinda High-Tech”) to purchase the land use right, buildings and facilities of Dalian Road Factory from Xinda High-Tech for a consideration of RMB120.3 million (equivalent to USD17.0 million). On January 23, 2020, HLJ New Materials has paid the consideration to Xinda High-Tech. As of June 30, 2020, the transfer procedures were not completed and were expected to be completed in the fourth quarter of 2020.

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Borrowings	Note 7 – Borrowings The Company has credit facilities with several banks under which they draw short-term and long-term bank loans as described below. (a) Current June 30, 2020 December 31, 2019 US$ US$ Unsecured loans 460,785,297 407,657,464 Loans secured by accounts receivable (i) 63,563,811 64,505,031 Guaranteed loan (ii) 35,313,228 — Loans secured by restricted cash (iii) 14,125,291 14,334,451 Syndicated loan facility (iv) 121,638,806 128,020,559 Loan secured by inventories (v) 5,650,117 5,733,781 Current portion of long-term bank loans (note b) 69,867,344 59,923,573 Total short-term loans, including current portion of long-term bank loans 770,943,894 680,174,859 As of June 30, 2020 and December 31, 2019, the Company's short-term bank loans (including the current portion of long-term bank loans) bear a weighted average interest rate of 5.2% and 5.0% per annum, respectively. All short-term bank loans mature at various times within one year and contain no renewal terms. (i) As of June 30, 2020 and December 31, 2019, the Company had US$56.5 million and US$64.5 million of short-term bank loans obtained from Longjiang Bank secured by accounts receivables of US$80.8 million and US$92.2 million, respectively. In March 2020, the Company obtained a one-year short-term loan of RMB50.0 million (equivalent to US$7.1 million) from Sichuan Tianfu Bank. As of June 30, 2020, the above loan together with bills payable in amount of RMB488.0 million (equivalent to US$68.9 million) issued by Sichuan Tianfu Bank were secured by accounts receivable of US$120.4 million. (ii) In January 2019, Sichuan Xinda obtained a one-year short-term unsecured bank loan of RMB250.0 million (equivalent to US$35.3 million) from Nanchong Rural Commercial Bank. Pursuant to the extension agreement dated January 2020, the loan maturity date was extended to July 2020 with a third-party guarantee provided by Nanchong Shuntou Development Group Co., Ltd. (“Shuntou”). Pursuant to the loan contract, the ratio of liabilities to assets of Sichuan Xinda shall not exceed 55%. As of June 30, 2020, Sichuan Xinda’s ratio of liabilities to assets was higher than 55%, which resulted in the breach of the loan covenant, and Nanchong Rural Commercial Bank has the right to declare the above loan be immediately due and payable. The loan was subsequently repaid in July 2020. (iii) As of June 30, 2020 and December 31, 2019, the Company had US$14.1 million and US$14.3 million of short-term bank loans secured by restricted cash of US$1.4 million and US$1.4 million, respectively. (iv) On October 2, 2019, Xinda Holding (HK) Company Limited ("Xinda Holding (HK)"), a wholly owned subsidiary of the Company, entered into a facility agreement for a one-year loan facility in an aggregate amount of US$135.0 million with a consortium of banks and financial institutions led by Industrial and Commercial Bank of China (Macau) Limited. The Company made the drawdown on December 18, 2019. The interest rate of the loan is 2.0% plus three-month LIBOR. The Company incurred agency fee and arrangement fee in the amount of US$7.2 million for the loan of which the unamortized balance was US$3.4 million as of June 30, 2020. Loan issuance costs are presented on the consolidated balance sheets as a direct deduction from the carrying amount of the loan and amortized to interest expense using the effective interest rate of 10.29% as of June 30, 2020. Xinda Holding (HK) prepaid US$10.0 million loan during the six months period ended June 30, 2020. As of June 30, 2020, the loan was secured by US$57.5 million restricted cash. Covenants of the syndicated loan facility included but not limited to: the consolidated tangible net worth of the Company shall not at any time be less than US$650 million (or its equivalent), the ratio of the consolidated total liabilities to consolidated total assets of the Company shall not at any time exceed 0.70:1.00, and interest cover in respect of each relevant period shall not be less than 2.50:1.00. As of June 30, 2020, the interest cover was lower than 2.5, which resulted in the breach of the loan covenant, and the consortium of banks has the right to declare the above loan be immediately due and payable. (v) In November 2019, the Company obtained a one-year short-term loan of RMB40.0 million (equivalent to US$5.7 million) from Bank of Inner Mongolia. As of June 30, 2020, the Company pledged inventories in amount of approximately US$39.6 million for the above loan and bills payable in amount of RMB142.0 million (equivalent to US$20.1 million) issued by Bank of Inner Mongolia. (b) Non-current June 30, December 31, 2020 2019 US$ US$ Secured loans (i) 1,742,389 1,742,389 Unsecured loans (ii ) 643,577,089 380,637,597 Less: current portion (69,867,344 ) (59,923,573 ) Total long-term bank loans, excluding current portion 575,452,134 322,456,413 As of June 30, 2020 and December 31, 2019, the Company's long-term bank loans (excluding the current portion of long-term bank loans) bear a weighted average interest rate of 5.2% and 5.4% per annum, respectively. (i) On December 26, 2018, the Company obtained a five-year secured loan of AED8.0 million (equivalent to US$2.2 million) from National Bank of Umm Al Qaiwain at an interest rate of three-month EBOR (0.72% as of June 30, 2020) plus 3.75%. The long-term loan was secured by an undated cheque of AED8.8 million (US$2.4 million) favouring the bank provided by Dubai Xinda. The cheque would not be cashed by the bank unless Dubai Xinda defaults. Principal will be repaid in ten half-yearly installments of AED0.8 million (equivalent to US$0.2 million) each. The Company repaid AED1.6 million (equivalent to US$0.5 million) during 2019. Affected by the COVID-19 pandemic, National Bank of Umm Al Qaiwain allowed the Company to apply for a six-month extension for the half-yearly installments of AED0.8 million (equivalent to US$0.2 million) due in June 2020. As of June 30, 2020, the extension application was still under approval process by the bank. (ii) As of June 30, 2020 and December 31, 2019, the Company's long-term unsecured bank loans (excluding the current portion of long-term bank loans) bear a weighted average interest rate of 5.2% and 5.5% per annum, respectively. The Company’s long-term unsecured bank loans (excluding the current portion of long-term bank loans) will mature serially from 2021 to 2027. In 2016 and 2017, Sichuan Xinda obtained long term unsecured loans of RMB135.0 million (equivalent to US$19.1 million) from Bank of China at an annual interest rate of 4.75%, and the loan balance as of June 30, 2020 was RMB75.0 million (equivalent to US$10.6 million), which will be due in 2020. As of June 30, 2020, inventory turnover, account receivable turnover and revenues of Sichuan Xinda for the six-month period ended June 30, 2020 was below requirement of the financial covenants in the loan contract, which resulted in the breach of the loan covenants. According to the loan contract, Bank of China has the right to declare the above loans be immediately due and payable. The loan balance of RMB75.0 million (equivalent to US$10.6 million) was classified as short-term bank loans in the condensed consolidated balance sheets as of June 30, 2020. Maturities on long-term bank loans (including current portion) are as follows: June 30, 2020 US$ Six months ended December 31, 2020 24,448,606 2021 83,774,812 2022 208,896,642 2023 160,051,385 2024 41,020,411 After 2024 127,127,622 Total 645,319,478

Accrued expenses and other curr

Accrued expenses and other current liabilities	6 Months Ended
	Jun. 30, 2020
Accrued Liabilities, Current [Abstract]
Accrued expenses and other current liabilities	Note 8 – Accrued expenses and other current liabilities Accrued expenses and other current liabilities consist of the following: June 30, 2020 December 31, 2019 US$ US$ Payables for purchase of property, plant and equipment 16,905,908 12,445,494 Accrued freight expenses 21,193,634 17,665,998 Accrued interest expenses 15,351,917 15,650,965 Contract liabilities (i) 2,195,421 17,922,160 Non income tax payables 4,282,890 6,056,024 Others (ii) 16,087,957 16,809,747 Total accrued expenses and other current liabilities 76,017,727 86,550,388 (i) Contract liabilities mainly represent the advance received from customers in the PRC for the finished goods and raw materials purchases. The change in contract liabilities primarily represents the cash received, less amounts recognized as revenues during the period. (ii) Others mainly represent accrued payroll and employee benefits, accrued audit and consulting fees, electricity fee and other accrued miscellaneous operating expenses.

Related party transactions

Related party transactions	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
Related party transactions	Note 9 – Related party transactions The related party transactions are summarized as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Transactions with related parties: Revenues resulting from transactions with a related party: Sales to Macromolecule Composite Materials (i) — 308,800 — 308,800 Financing transactions with related parties: Interest-free advances from Mr. Jie Han — 2,950,723 — 2,950,723 Interest-free advances from a senior management employee in HLJ Xinda Group — — — 284,008 Repayment of interest-free advances from management employees in HLJ Xinda Group and Sichuan Xinda — (4,439,451 ) — (4,439,451 ) Interest-free advances from Macromolecule Composite Materials (i) — 64,155,128 — 64,155,128 Repayment of interest-free advances from Macromolecule Composite Materials (i) — (60,713,009 ) — (60,713,009 ) Interest-free advances from Mr. Qingwei Ma 1,138,498 — 1,138,498 — Repayment of interest-free advances from Mr. Qingwei Ma (1,138,498 ) — (1,138,498 ) — Total financing transactions with related parties — 1,953,391 — 2,237,399 (i) On December 26, 2018, Shanghai Sales set up Heilongjiang Xinda Macromolecule Composite Materials Company Limited (“Macromolecule Composite Materials”). On April 22, 2019, Shanghai Sales transferred 97.5% equity interest in Macromolecule Composite Materials to Harbin Shengtong Engineering Plastics Co., Ltd. ("Harbin Shengtong"). Mr. Xigang Chen, who was the general manager of Sichuan Xinda, was the general manager and also the principal shareholder of Harbin Shengtong. Since Mr. Xigang Chen resigned from Sichuan Xinda on August 5, 2019, Macromolecule Composite Materials had ceased to be a related party of the Company. The related party balances are summarized as follows: June 30, 2020 December 31, 2019 US$ US$ Amounts due to related parties: Mr. Jie Han (the Chairman and Chief Executive Officer) 12,317,254 12,499,642 Mr. Jie Han’s wife 3,099,054 3,137,539 Mr. Jie Han’s son 9,181,439 9,317,393 Mr. Qingwei Ma (Chief Operating Officer) 1,130,023 1,146,756 Senior management employee in HLJ Xinda Group 148,392 150,589 Total amounts due to related parties 25,876,162 26,251,919

Income tax

Income tax	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income tax	Note 10 – Income tax Pursuant to an approval from the local tax authority in July 2013, Sichuan Xinda, a subsidiary of China XD, became a qualified enterprise located in the western region of the PRC, which entitled it to a preferential income tax rate of 15% from January 1, 2013 to December 31, 2020. Under the current laws of Dubai, Dubai Xinda, a subsidiary of China XD, is exempted from income taxes. The effective income tax rates for the six-month periods ended June 30, 2020 and 2019 were negative 18.0% and 11.0%, respectively. US$6,164,268 previously unrecognized tax benefits accrued in year 2014 and the related accrued interest amounting to US$5,021,444 were reversed due to the expiration of five-year tax assessment period on May 31, 2020. As of June 30, 2020, the unrecognized tax benefits were US$30,733,101 and the interest relating to unrecognized tax benefits was US$10,998,020, of which t he unrecognized tax benefits in year 2015 amounting to US$7,082,459 and related accrued interest amounting to US$4,794,317 were classified as current liabilities as the five-year tax assessment period will expire on May 31, 2021.

Deferred income

Deferred income	6 Months Ended
	Jun. 30, 2020
Deferred Revenue Disclosure [Abstract]
Deferred income	Note 11 – Deferred income On January 26, 2015, the Company entered into a memorandum and a fund support agreement (the "Agreement") with the People's Government of Shunqing District, Nanchong City, Sichuan Province ("Shunqing Government") pursuant to which Shunqing Government, through its investment vehicle, extended to the Company RMB350 million (equivalent to US$49.4 million) to support the construction of the Sichuan plant, which has been received in full in the form of government repayment of bank loans on behalf of the Company. In addition, the Company has received RMB333.2 million (equivalent to US$47.1 million) from Shunqing Government and RMB6.4 million (equivalent to US$0.9 million) from Ministry of Finance of the People's Republic of China to support the construction and RMB7.5 million (equivalent to US$1.0 million) special funds of ministerial key research projects from Ministry of Science and Technology of PRC as of June 30, 2020. The Company has also received RMB45.0 million (equivalent to US$6.4 million) from Harbin Bureau of Finance to support the construction of the 300,000 metric tons of biological composite materials project in Heilongjiang as of June 30, 2020. Since the funding is related to the construction of long-term assets, the amounts were recognized as government grant, which is included in deferred income on the consolidated balance sheets, and to be recognized as other income in the consolidated statements of comprehensive income (loss) over the periods and in the proportions in which depreciation expense on the long-term assets is recognized. A cumulative RMB136.7 million (equivalent to US$19.3 million) government grants have been amortized as other income proportionate to the depreciation of the related assets, of which RMB21.2 million (equivalent to US$3.0 million) was amortized in the six-month period ended June 30, 2020. The Company also received RMB36.0 million (equivalent to US$5.1 million) from Shunqing Government with respect to interest subsidy for bank loans. A cumulative RMB16.4 million (equivalent to US$2.3 million) government grants have been amortized as other income in line with the amount of related loan interest accrued.

Other non-current liabilities

Other non-current liabilities	6 Months Ended
	Jun. 30, 2020
Other Liabilities, Noncurrent [Abstract]
Other non-current liabilities	Note 12 – Other non-current liabilities June 30, December 31, 2020 2019 US$ US$ Income tax payable-noncurrent (i) 78,110,645 86,414,852 Deferred income tax liabilities 3,735,381 4,613,524 Total other non-current liabilities 81,846,026 91,028,376 (i) Income tax payable-noncurrent represents the repatriation tax, the accumulative balance of unrecognized tax benefits since 2016 and related accrued interest. According to the Tax Cuts and Jobs Act enacted on December 22, 2017, the management recognized the amount of U.S. tax corporate income tax is US$70,965,148 based on the deemed repatriation to the United States of accumulated earnings mandated by the U.S. tax reform, US$22,708,848 of which due payable within one year was classified as current liabilities.

Noncontrolling interests

Noncontrolling interests	6 Months Ended
	Jun. 30, 2020
Noncontrolling Interest [Abstract]
Noncontrolling interests	Note 13 – Noncontrolling interests On January 22, 2020, a third party investor acquired 36.21% and 38.08% of the equity interest of the Company’s two wholly owned PRC subsidiaries at a consideration of RMB325.0 million (equivalent to US$45.9 million). The Company shall redeem 50% of the equity interest owned by the noncontrolling shareholder on January 21, 2024 and the remaining 50% on January 21, 2025 at a total redemption value of RMB325.0 million. The noncontrolling shareholder was also entitled to an interest at 1.5% per annum. The Company has pledged its 63.79% and 61.92% equity interest of the two subsidiaries to the noncontrolling shareholder as a guarantee for its obligation on the redemption. The mandatorily redeemable noncontrolling interests were recorded as a liability on the unaudited condensed consolidated balance sheet and initially recorded at the fair value of US$45.9 million and were subsequently carried at the present value of the redemption value. In April 2020, the Company increased its capital contribution to one of the subsidiaries by transferring certain land use right amounting to RMB32.5 million (equivalent to US$4.6 million) from HLJ Xinda Group to the subsidiary, and the equity interest owned by the Company has increased from 61.92% to 65.62%, the equity interest owned by noncontrolling shareholder has decreased from 38.08% to 34.38%. On June 29, 2020, the Company entered into supplementary agreements with the noncontrolling shareholder, pursuant to which, the redemption provision, the 1.5% per annum interest payable to the noncontrolling shareholder and the guarantee provision in the original investment agreements were cancelled. The substantial modification of terms was accounted as an extinguishment with no extinguishment gains or losses recognized. The noncontrolling interest were reclassified as an equity instrument. As of June 30, 2020, the carrying value of the noncontrolling interests was US$45.9 million.

Stockholders' equity

Stockholders' equity	6 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Stockholders' equity	Note 14 – Stockholders' equity The changes of each caption of stockholders' equity for the six-month period ended June 30, 2020 are as follows: Series B Preferred Stock Common Stock Accumulated Number of Shares Amount Number of Shares Amount Treasury Stock Additional Paid-in Capital Retained Earnings Other Comprehensive Loss Noncontrolling Interest Total Stockholders' Equity US$ US$ US$ US$ US$ US$ US$ US$ Balance as of January 1, 2020 1,000,000 100 66,948,841 6,697 (92,694 ) 184,208,447 720,159,368 (67,907,807 ) — 836,374,111 Net income — — — — — — 6,537,317 — — 6,537,317 Other comprehensive loss — — — — — — — (12,177,250 ) — (12,177,250 ) Contribution from noncontrolling interests — — — — — — — — 45,907,197 45,907,197 Balance as of June 30, 2020 1,000,000 100 66,948,841 6,697 (92,694 ) 184,208,447 726,696,685 (80,085,057 ) 45,907,197 876,641,375

Stock based compensation

Stock based compensation	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock based compensation	Note 15 – Stock based compensation On January 10, 2020, the Board of Directors approved the adoption of 2020 Stock Option / Stock Issuance Plan (the "2020 Plan"), under which 13,000,000 shares of common stock are reserved for issuance. The 2020 Plan provides for the grant of stock options and stock issuances to employees, directors and independent contractors who provide services to the Company and/or its affiliates. Non-vested shares On February 20, 2020, the Company's Board of Directors approved the grant of 3,000,000 non-vested shares to Mr. Jie Han and an employee with a performance condition that the Company or its subsidiaries receive certain amount of bank credit prior to April 30, 2020 and complete certain amount of drawdown from such credit line prior to June 30, 2020. The awards will be forfeited if the performance condition is not met. As of June 30, 2020, the performance condition has not been met and the awards were forfeited. On February 20, 2020, the Company's Board of Directors approved the grant of 1,000,000 non-vested shares to two nonemployee consultants providing certain financing advisory service for the Company. As of June 30, 2020, the service has not been rendered and the service agreement was cancelled and the awards were forfeited. A summary of the non-vested shares activity for the six-month period ended June 30, 2020 is as follows: Number of Nonvested Shares Weighted Average Grant date Fair Value US$ Outstanding as of December 31, 2019 — — Granted 4,000,000 1.5 Forfeited (4,000,000 ) 1.5 Outstanding as of June 30, 2020 — — The Company recognized nil compensation expense in general and administrative expenses relating to non-vested shares for the three months and six months periods ended June 30, 2020 and 2019, respectively. As of June 30, 2020, there was nil unrecognized compensation cost relating to the non-vested shares.

Earnings per share

Earnings per share	6 Months Ended
	Jun. 30, 2020
Earnings per common share:
Earnings per share	Note 16 - Earnings per share Basic and diluted earnings per share are calculated as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Net income attributable to China XD Plastics Company Limited 17,575,811 40,111,317 6,537,317 51,092,032 Less: Earnings allocated to participating Series D convertible preferred stocks — (9,586,142 ) — (12,210,406 ) Net income for basic and diluted earnings per share 17,575,811 30,525,175 6,537,317 38,881,626 Denominator Denominator for basic and diluted earnings per share 66,948,841 50,948,841 66,948,841 50,948,841 Earnings per share: Basic and diluted 0.26 0.60 0.1 0.76 The following table summarizes potentially dilutive securities excluded from the calculation of diluted earnings per share for the three-month periods and six-month periods ended June 30, 2020 and 2019 because their effects are anti-dilutive: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 Shares issuable upon conversion of Series D convertible preferred stocks — 16,000,000 — 16,000,000

Commitments and contingencies

Commitments and contingencies	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingencies	Note 17 - Commitments and contingencies (1) Sichuan plant construction and equipment purchase On March 8, 2013, Xinda Holding (HK) entered into an investment agreement with Shunqing Government, pursuant to which Xinda Holding (HK) will invest RMB1.8 billion in property, plant and equipment and approximately RMB0.6 billion in working capital, for the construction of Sichuan plant. As of June 30, 2020, the Company has a remaining commitment of RMB38.5 million (equivalent to US$5.5 million) mainly for facility construction. In September 2016, Sichuan Xinda entered into equipment purchase contracts with Harbin Hailezi Science and Technology Co., Ltd. ("Hailezi") for a consideration of RMB17.0 million (equivalent to US$2.4 million) to purchase storage facility and testing equipment. Afterward, Sichuan Xinda cancelled two contracts with Hailezi for a consideration of RMB1.6 million (equivalent to US$0.2million). As of June 30, 2020, Sichuan Xinda has a remaining commitment of RMB9.4 million (equivalent to US$1.3 million). On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. As of June 30, 2020, the Company has a remaining commitment of RMB55.9 million (equivalent to US$7.9 million). On November 15, 2016 and February 20, 2017, Sichuan Xinda entered into decoration contracts with Beijin Construction to perform indoor and outdoor decoration work for a consideration of RMB240.5 million (equivalent to US$34.0 million). On June 10, 2017, Sichuan Xinda entered into another decoration contract with Beijin Construction to perform ground decoration work for a consideration of RMB23.8 million (equivalent to US$3.3 million). As of June 30, 2020, the Company has a remaining commitment of RMB141.5 million (equivalent to US$20.0 million). Pursuant to the Nanchong Project mentioned in Note 6 (i), Sichuan Xinda entered into equipment purchase contracts with Hailezi for a consideration of RMB2,242.8 million (equivalent to US$316.8 million) to purchase production equipment and testing equipment in March 2017. By the end of June 2017, Sichuan Xinda was about to launch a system including MES, SAP, ERP and CRM which caused the equipment of original contracts with Hailezi cannot meet the production requirement. Thus the original contracts have been partially terminated with the uncancelled contract amount to be RMB18.0 million (equivalent to US$2.5 million). As of June 30, 2020, Sichuan Xinda has a remaining commitment of RMB1.9 million (equivalent to US$0.3 million). In connection with the Nanchong Project, on June 21, 2018, Sichuan Xinda entered into another equipment purchase contracts with Hailezi to purchase production equipment and testing equipment for a consideration of RMB1.9 billion (equivalent to US$268.4 million). As of June 30, 2020, Sichuan Xinda has a remaining commitment of RMB190.0 million (equivalent to US$26.8 million). (2) Heilongjiang plant construction and equipment purchase In connection with the equipment purchase contracts with Hailezi signed On September 26, 2016 and February 28, 2017 and September 25, 2019 to purchase storage facility and other equipment mentioned in Note 6 (i), HLJ Xinda Group has a remaining commitment of RMB75.2 million (equivalent to US$10.6 million) as of June 30, 2020. In connection with the HLJ Project, on June 25, 2018 and July 12, 2018, HLJ Xinda Group entered into two equipment purchase contracts with Hailezi to purchase production equipment, which will be used for 300,000 metrics tons of biological based composite material, located in Harbin, for a consideration of RMB1,906.8 million (equivalent to US$269.3 million). Pursuant to the contracts with Hailezi, HLJ Xinda Group has a remaining commitment of RMB1,366.8 million (equivalent to US$193.1 million) as of June 30, 2020. In connection with the equipment purchase contracts with Hailezi for Qinling Road Project and Jiangnan Road Project mentioned in Note 6 (i), as of June 30, 2020, the Company has remaining commitments of RMB32.4 million (equivalent to US$4.6 million) and RMB142.7 million (equivalent to US$20.2 million) for Qinling Road Project and Jiangnan Road Project respectively. (3) Dubai equipment purchase On May 31, 2019, Dubai Xinda entered into an equipment purchase contract with Peaceful for a total consideration of US$18.8 million. As of June 30, 2020, the Company has a remaining commitment of US$1.8 million. (4) Xinda CI (Beijing) office building decoration On March 30, 2017, Xinda CI (Beijing) Investment Holding Co., Ltd. ("Xinda Beijing Investment") entered into a decoration contract with Beijing Fangyuan Decoration Engineering Co., Ltd. for a total consideration of RMB5.8 million (equivalent to US$0.8 million) to decorate office building. As of June 30, 2020, the Company has a remaining commitment of RMB3.8 million (equivalent to US$0.5 million). On June 9, 2017, Xinda CI (Beijing) entered into a decoration contract with Beijing Zhonghongwufang Stone Co., Ltd for a total consideration of RMB1.2 million (equivalent to US$0.2 million) to decorate office building. As of June 30, 2020, the Company has a remaining commitment of RMB0.6 million (equivalent to US$0.1 million). (5) Guarantees On December 25, 2018, HLJ Xinda Group, Sichuan Xinda and Mr. Jie Han provided guarantee to Shanghai Sales obtaining a one-year loan of RMB500.0 million (equivalent to US$70.6) from Longjiang Bank, Harbin Branch with an annual interest rate of 6.09% from December 25, 2018 to December 24, 2019. On December 24, 2019, the loan was extended to October 23, 2020. If Shanghai Sales does not repay the above loan when due, HLJ Xinda Group, Sichuan Xinda and Mr. Jie Han shall be obliged to repay the RMB500.0 million loan. The loan was repaid early by Shanghai Sales in April 2020. On April 15, 2019, Sichuan Xinda provided guarantee to Shanghai Sales obtaining a one-year loan of RMB800.0 million (equivalent to US$113.0 million) from Longjiang Bank, Harbin Branch with an annual interest rate of 6.09% from April 15, 2019 to April 14, 2020. If Shanghai Sales does not repay the above loan when due, Sichuan Xinda shall be obliged to repay the RMB800.0 million loan. The loan was repaid by Shanghai Sales in April 2020. On December 3, 2019, HLJ Xinda Group provided guarantee to Macromolecule Composite Materials obtaining a one-year loan of RMB612.2 million (equivalent to US$86.5 million) from Longjiang Bank, Harbin Branch with an annual interest rate of 6.25%. If Macromolecule Composite Materials does not repay the above loan when due, HLJ Xinda Group shall be obliged to repay the RMB612.2 million loan. The loan was repaid early in April 2020. (6) Legal proceedings The Company and its board of directors were named as defendants in four lawsuits filed in July 2020 in connection with the proposed going-private transaction. There is a possibility that a loss may have been incurred, as the Company is unable to estimate the possible loss or range of loss at this early stage in the cases, no loss contingency was accrued as of June 30, 2020.

Revenues

Revenues	6 Months Ended
	Jun. 30, 2020
Revenues [Abstract]
Revenues	Note 18 - Revenues Revenues consist of the following: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Modified Polyamide 66 (PA66) 147,968,469 92,259,170 197,201,570 176,137,415 Modified Polyamide 6 (PA6) 96,196,177 105,421,049 116,495,139 171,589,143 Plastic Alloy 7,597,061 71,411,826 18,144,460 134,548,451 Modified Polypropylene (PP) 21,929,333 40,795,250 26,270,108 77,852,304 Modified Acrylonitrile Butadiene Styrene (ABS) 6,384,587 14,777,635 7,377,815 28,225,264 Polyoxymethylenes (POM) 374,407 2,302,901 876,354 4,899,362 Polyphenylene Oxide (PPO) — 9,133,246 — 25,992,396 Polylactide (PLA) 155,882 12,751,971 358,037 29,263,327 Polyethylene (PE) 851,805 1,831,333 1,437,050 3,604,077 Semi-finished goods — 112,300,015 58,182,353 112,300,015 Others 1,766,266 89,484 1,718,779 128,133 Total Revenue 283,223,987 463,073,880 428,061,665 764,539,887 The following table provides sales by major customer group for the three-month and six-month periods ended June 30, 2020 and 2019 Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Distributors 276,792,623 322,799,104 384,318,727 605,615,795 Direct customers 4,665,098 140,185,292 42,024,159 158,729,179 Others 1,766,266 89,484 1,718,779 128,133 Total Revenue 283,223,987 463,073,880 428,061,665 764,539,887

Gains on disposal of a subsidia

Gains on disposal of a subsidiary	6 Months Ended
	Jun. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Gains on disposal of a subsidiary	Note 19 - Gains on disposal of a subsidiary On November 13, 2018, HLJ Xinda Group entered into an agreement with Shanghai Sales, to transfer the wholly owned equity of Heilongjiang Xinda Enterprise Group (Shanghai) New Materials Research and Development Co., Ltd. ("Shanghai New Materials R&D") from HLJ Xinda Group to Shanghai Sales with no consideration as a result of group restructuring to streamline resources and improve operating efficiency. The legal transfer was completed on February 1, 2019 and the Company recorded gains of US$0.5 million on disposal of Shanghai New Materials R&D for the three-month period ended March 31, 2019.

Leases

Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	Note 20 - Leases As of June 30, 2020, the Company had operating leases for land use rights and office with remaining terms expiring from 2022 through 2085. The weighted average remaining lease term excluding land use rights located in PRC as of June 30, 2020 was 16.8 years. Weighted average discount rate used in the calculation of the lease liabilities was 6.7%. The discount rate reflects the estimated incremental borrowing rate, which includes an assessment of the credit rating to determine the rate that the Company would have to pay to borrow, on a collateralized basis for a similar term, an amount equal to the lease payments in a similar economic environment. Lease cost for the three-month and six-month periods ended June 30, 2020 and 2019 is as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Operating lease cost 572,691 423,657 1,147,788 847,228 Short-term lease cost 237,421 154,019 368,495 333,214 Total lease cost 810,112 577,676 1,516,283 1,180,442 As of June 30, 2020, the maturities of the operating lease liabilities are as follows: Remaining Lease Payments US$ Six months ended December 31, 2020 693,360 2021 1,407,825 2022 1,408,184 2023 1,424,003 2024 1,443,311 Thereafter 20,567,357 Total remaining lease payments 26,944,040 Less: imputed interest (11,280,932 ) Total operating lease liabilities 15,663,108 Less: current portion (1,413,018 ) Non-current operating lease liabilities 14,250,090 Weighted-average remaining lease term 16.8 years Weighted-average discount rate 6.7 % Supplemental cash flow information related to leases is as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 301,873 1,550,512 666,063 1,679,029

Subsequent event

Subsequent event	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent event	Note 21 – Subsequent event In July 2020, the Company pledged its production equipment with a carrying amount of US$141.7 million to Nanchong Shuntou Development Group Co., Ltd. (“Shuntou”) as counter-guarantee for the guarantee provided by Shuntou for the RMB250.0 million (equivalent to US$35.3 million) loan obtained by the Company in July 2020 from Nanchong Rural Commercial Bank.

Basis of presentation and sig_2

Basis of presentation and significant concentrations and risks (Policies)	6 Months Ended
	Jun. 30, 2020
Basis of presentation, significant concentrations and risks [Abstract]
Basis of presentation	(a) Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted as permitted by rules and regulations of the United States Securities and Exchange Commission ("SEC"). The condensed consolidated balance sheet as of December 31, 2019 was derived from the audited consolidated financial statements of China XD Plastics Company Limited ("China XD") and subsidiaries (collectively, the "Company"). The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated balance sheet of the Company as of December 31, 2019, and the related consolidated statements of comprehensive income, changes in equity and cash flows for the year then ended, included in the Company's Annual Report on Form 10-K filed with the SEC on June 1, 2020. In the opinion of the management, all adjustments (which include normal recurring adjustments) necessary to present a fair statement of the financial position as of June 30, 2020, the results of operations and cash flows for the six-month periods ended June 30, 2020 and 2019, have been made. The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include the recoverability of the carrying amounts of property, plant and equipment, the realizability of inventories, the useful lives of property, plant and equipment, the collectability of accounts receivable, the accruals for tax uncertainties and other contingencies, and the discount rate used to determine the present value of the lease payments. The current economic environment has increased the degree of uncertainty inherent in those estimates and assumptions.
Accounting Pronouncement Adopted in 2020	(b) Accounting pronouncement adopted in 2020 In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements on fair value measurements. The Company has adopted the standard on January 1, 2020 and there was no material impact on its consolidated financial statements as a result of the adoption.
Significant concentrations and risks	(c) Significant concentrations and risks Sales concentration The Company sells its products primarily through approved distributors in the People's Republic of China (the "PRC"). The Company's sales are highly concentrated. Sales to distributors individually exceeded 10% of the Company's revenues for the three-month and six-month periods ended June 30, 2020 and 2019, are as follows: Three-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 41,857,743 14.8 % 58,501,659 12.6 % Distributor B, located in PRC 33,149,907 11.7 % 36,906,778 * Distributor C, located in PRC 32,613,997 11.5 % 33,077,889 * Distributor D, located in PRC 30,205,164 10.7 % 27,263,818 * * Less than 10% Six-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 67,770,607 15.8 % 115,001,391 15.0 % Distributor B, located in PRC 47,135,094 11.0 % 74,605,665 * Distributor C, located in PRC 46,073,857 10.8 % 55,046,388 * Distributor D, located in PRC 45,647,181 10.7 % 54,588,405 * * Less than 10% The Company expects revenues from these distributors to continue to represent a substantial portion of its revenue in the future. Any factor adversely affecting the automobile industry in the PRC or the business operations of these customers will have a material effect on the Company's business, financial position and results of operations. Purchase concentration of raw materials The principal raw materials used for the Company's production of modified plastics products are plastic resins, such as polypropylene, ABS and nylon. The Company purchases substantially all of its raw materials through a limited number of distributors. Raw material purchases from these distributors, which individually exceeded 10% of the Company's total raw material purchases, accounted for approximately 35.5% (three distributors) and 31.7% (three distributors) for the three-month periods ended June 30, 2020 and 2019, respectively, and 32.0% (three distributors) and 33.2% (three distributors) of the Company's total raw materials purchases for the six-month periods ended June 30, 2020 and 2019, respectively. Management believes that other suppliers could provide similar raw materials on comparable terms. A change in suppliers, however, could cause a delay in manufacturing and a possible loss of sales, which would adversely affect the Company's business, financial position and results of operations. Cash concentration Cash and cash equivalents, restricted cash, and time deposits mentioned below maintained at banks consist of the following: June 30, 2020 December 31, 2019 US$ US$ Renminbi (“RMB”) denominated bank deposits with: Financial Institutions in the PRC 288,607,567 226,488,069 Financial Institutions in Hong Kong Special Administrative Region ("Hong Kong SAR") 8,360 8,134 Financial Institution in Dubai, UAE 329 — U.S. dollar denominated bank deposits with: Financial Institution in the U.S. 5,848 3,057 Financial Institutions in the PRC 16,784 16,868 Financial Institution in Hong Kong SAR 483,590 590,131 Financial Institution in Macau Special Administrative Region ("Macau SAR") 1,290,068 1,288,792 Financial Institution in Dubai, UAE 166,837 4,549 HK dollar denominated bank deposits with: Financial institution in Hong Kong SAR 156 156 Dirham denominated bank deposits with: Financial institution in Dubai, UAE 217,095 33,263 The bank deposits with financial institutions in the PRC are insured by the government authority for up to RMB500,000. The bank deposits with financial institutions in the Hong Kong SAR are insured by the government authority for up to HK$500,000. The bank deposits with financial institutions in the Macau SAR are insured by the government authority for up to MOP$500,000. The bank deposits with financial institutions in the Dubai, UAE are not insured by the government authority. Total bank deposits amounted to US$1,034,565 and US$1,063,709 are insured as of June 30, 2020 and December 31, 2019, respectively. The Company has not experienced any losses in uninsured bank deposits and does not believe that it is exposed to any significant risks on cash held in bank accounts. To limit exposure to credit risk, the Company primarily places bank deposits with large financial institutions in the PRC, Hong Kong SAR, Macau SAR and Dubai, UAE with acceptable credit rating. Cash deposits in bank that are restricted as to withdrawal or usage for up to 12 months are reported as restricted cash in the consolidated balance sheets. Short-term bank deposits that are pledged as collateral for bills payable relating to purchases of raw materials are reported as restricted cash and amounted to US$105,763,684 and US$151,498,873 as of June 30, 2020 and December 31, 2019, respectively. Upon maturity and repayment of the bills payable, which is generally within 6 months, the cash becomes available for use by the Company. Short-term bank deposits that are related to government grant are reported as restricted cash and amounted to US$68,909 and US$69,879 as of June 30, 2020 and December 31, 2019, respectively. Short-term bank deposits that are pledged for the US$135.0 million syndicated loans obtained from a consortium of banks led by the Industrial and Commercial Bank of China (Macau) Limited are reported as restricted cash and amounted to US$57,493,534 and US$58,229,047 as of June 30, 2020 and December 31, 2019, respectively, for details of the syndicated loans please refer to note 7. Short-term bank deposits that are pledged as collateral to settle US$14.1 million of short-term bank loans obtained from Postal Savings Bank of China are reported as restricted cash and amounted to US$1,412,529 and US$1,433,445 as of June 30, 2020 and December 31, 2019, respectively.

Basis of presentation and sig_3

Basis of presentation and significant concentrations and risks (Tables)	6 Months Ended
	Jun. 30, 2020
Basis of presentation, significant concentrations and risks [Abstract]
Schedule of Sales Concentrations by Major Distributors	The Company sells its products primarily through approved distributors in the People's Republic of China (the "PRC"). The Company's sales are highly concentrated. Sales to distributors individually exceeded 10% of the Company's revenues for the three-month and six-month periods ended June 30, 2020 and 2019, are as follows: Three-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 41,857,743 14.8 % 58,501,659 12.6 % Distributor B, located in PRC 33,149,907 11.7 % 36,906,778 * Distributor C, located in PRC 32,613,997 11.5 % 33,077,889 * Distributor D, located in PRC 30,205,164 10.7 % 27,263,818 * * Less than 10% Six-Month Period Ended June 30, 2020 2019 US$ % US$ % Distributor A, located in PRC 67,770,607 15.8 % 115,001,391 15.0 % Distributor B, located in PRC 47,135,094 11.0 % 74,605,665 * Distributor C, located in PRC 46,073,857 10.8 % 55,046,388 * Distributor D, located in PRC 45,647,181 10.7 % 54,588,405 * * Less than 10%
Schedule of Cash and Cash Equivalents	Cash and cash equivalents, restricted cash, and time deposits mentioned below maintained at banks consist of the following: June 30, 2020 December 31, 2019 US$ US$ Renminbi (“RMB”) denominated bank deposits with: Financial Institutions in the PRC 288,607,567 226,488,069 Financial Institutions in Hong Kong Special Administrative Region ("Hong Kong SAR") 8,360 8,134 Financial Institution in Dubai, UAE 329 — U.S. dollar denominated bank deposits with: Financial Institution in the U.S. 5,848 3,057 Financial Institutions in the PRC 16,784 16,868 Financial Institution in Hong Kong SAR 483,590 590,131 Financial Institution in Macau Special Administrative Region ("Macau SAR") 1,290,068 1,288,792 Financial Institution in Dubai, UAE 166,837 4,549 HK dollar denominated bank deposits with: Financial institution in Hong Kong SAR 156 156 Dirham denominated bank deposits with: Financial institution in Dubai, UAE 217,095 33,263

Accounts receivable (Tables)

Accounts receivable (Tables)	6 Months Ended
	Jun. 30, 2020
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Schedule of Accounts Receivable	Accounts receivable consists of the following: June 30, 2020 December 31, 2019 US$ US$ Accounts receivable 247,233,447 284,921,071 Allowance for doubtful accounts (62,848,465 ) (62,849,018 ) Accounts receivable, net 184,384,982 222,072,053
Schedule of Aging of Accounts Receivable	The following table provides an analysis of the aging of accounts receivable as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 US$ US$ Aging: – current 164,687,690 189,180,366 – 1-3 months past due 2,251,085 45,363,405 – 4-6 months past due 24,774,501 28,865,350 – 7-12 months past due 41,495,498 5,703,612 – greater than one year past due 14,024,673 15,808,338 Total accounts receivable 247,233,447 284,921,071

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory, Net [Abstract]
Schedule of Inventories	Inventories consist of the following: June 30, 2020 December 31, 2019 US$ US$ Raw materials and semi-finished goods 622,002,570 637,278,817 Finished goods 56,540,434 5,230,717 Total inventories 678,543,004 642,509,534

Prepaid expenses and other cu_2

Prepaid expenses and other current assets (Tables)	6 Months Ended
	Jun. 30, 2020
Prepaid Expense and Other Assets, Current [Abstract]
Schedule of Prepaid Expense and Other Assets Current	Prepaid expenses and other current assets consist of the following: June 30, 2020 December 31, 2019 US$ US$ Advances to suppliers (i) 91,593,394 118,166,925 Amounts due from third parties (ii) 308,491,066 — Value added taxes receivables (iii) 3,072,424 6,239,719 Receivables from Hong Kong Grand Royal Trading Co., Ltd. (iv) — 42,566,949 Interest receivable (v) 491,601 615,049 Others (vi) 1,769,661 4,259,480 Total prepaid expenses and other current assets 405,418,146 171,848,122 (i) Advances to suppliers are the advances to purchase raw materials. (ii) During the three-month period ended June 30, 2020, the Company has lent RMB1,284.8 million (equivalent to US$181.5 million) to Heilongjiang Xinda Enterprise Group Shanghai New Materials Sales Company Limited (“Shanghai Sales”), a company formerly owned by the Company and was disposed in December 2018, RMB612.2 million (equivalent to US$86.5 million) to Heilongjiang Xinda Macromolecule Composite Materials Company Limited (“Macromolecule Composite Materials”), a company established by Shanghai Sales (details refer to note 9), and RMB286.7 million (equivalent to US$40.5 million) to Guangzhou Peiqu International Trading LLC, the Company’s supplier and a related party of Hong Kong Grand Royal Trading Co., Ltd., as interest-free advances. The Company has subsequently collected the RMB2,183.7 million (equivalent to US$308.5 million) from the above third parties in August 2020. (iii) Value added taxes receivables mainly represent the input taxes on purchasing equipment by Heilongjiang Xinda Enterprise Group Company Limited (“HLJ Xinda Group”) and Sichuan Xinda Enterprise Group Company Limited (“Sichuan Xinda”), which are to be net off with output taxes. Value added taxes receivables were recognized in operating activities in consolidated statements of cash flows. (iv) Hong Kong Grand Royal Trading Co., Ltd. (“Hong Kong Grand Royal”) is a raw material supplier of AL Composites Materials FZE ("Dubai Xinda"). Dubai Xinda has prepaid US$48.2 million to Hong Kong Grand Royal in 2017 for purchase of raw materials. Due to the price fluctuation of raw materials, Hong Kong Grand Royal could not purchase and deliver the raw materials to Dubai Xinda. In July 2019, both parties entered into a supplemental agreement to cancel the original purchase agreements and Hong Kong Grand Royal shall settle the advance payment. The US$42.6 million advance payment as of December 31, 2019 was settled during the six-month period ended June 30, 2020. (v) Interest receivable mainly represents interest income accrued from time deposits and restricted cash. (vi) Others mainly include prepaid miscellaneous service fee, staff advance and prepaid rental fee.

Property, plant and equipment_2

Property, plant and equipment, net (Tables)	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment	Property, plant and equipment consist of the following: June 30, 2020 December 31, 2019 US$ US$ Machinery, equipment and furniture 518,520,814 575,317,840 Motor vehicles 1,799,529 1,709,182 Workshops and buildings 154,518,665 156,256,761 Construction in progress 361,737,754 335,245,525 Total property, plant and equipment 1,036,576,762 1,068,529,308 Less accumulated depreciation (222,800,656 ) (238,209,592 ) Property, plant and equipment, net 813,776,106 830,319,716
Schedule of the Allocation of Depreciation Expense on Property, Plant and Equipment	For the three-month period ended June 30, 2020 and 2019, the Company capitalized US$1,304,561 and US$357,175 of interest costs as a component of the cost of construction in progress. For the six-month period ended June 30, 2020 and 2019, the Company capitalized US$2,641,600 and US$744,499 of interest costs as a component of the cost of construction in progress. Depreciation expense on property, plant and equipment was allocated to the following expense items: Three-Month Period Ended June 30, 2020 2019 US$ US$ Cost of revenues 11,731,493 13,522,087 General and administrative expenses 603,849 519,248 Research and development expenses 614,016 946,164 Selling expenses 726 454 Total depreciation expense 12,950,084 14,987,953 Six-Month Period Ended June 30, 2020 2019 US$ US$ Cost of revenues 23,988,269 26,981,070 General and administrative expenses 1,214,452 1,205,771 Research and development expenses 1,326,745 1,968,287 Selling expenses 5,222 2,277 Total depreciation expense 26,534,688 30,157,405

Prepayments to equipment and _2

Prepayments to equipment and construction suppliers (Tables)	6 Months Ended
	Jun. 30, 2020
Prepayments to equipment suppliers [Abstract]
Schedule of Total Prepayments to Equipment Suppliers	June 30, 2020 December 31, 2019 US$ US$ Hailezi (i) 455,858,879 468,529,714 Beijin Construction (ii) 6,863,810 6,795,439 Peaceful Treasure Limited(iii) 21,776,143 19,967,014 Xinda High-Tech (iv) 16,992,725 — Others 557,665 278,254 Total prepayments to equipment and construction suppliers 502,049,222 495,570,421 (i) On September 26, 2016 and February 28, 2017, HLJ Xinda Group entered into equipment purchase contracts with Hailezi for a total consideration of RMB782.2 million (equivalent to US$110.5 million) to purchase storage facility and other equipment, which will be used for upgrading the storage system of warehouse located in Harbin, China. Pursuant to the contracts with Hailezi, HLJ Xinda Group prepaid RMB621.6 million (equivalent to US$87.8 million) during the first quarter of 2017. Due to a redesign of outdoor storage facility in June 2017, HLJ Xinda Group entered into a supplementary agreement with Hailezi, which decreased the original contract amount to RMB283.7 million (equivalent to US$40.1 million). Hailezi refunded RMB369.1 million (equivalent to US$52.1 million) to HLJ Xinda Group on June 22, 2017. On September 25, 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the total contract amount was increased to RMB332.5 million (equivalent to US$47.0 million). As of June 30, 2020, HLJ Xinda Group has prepaid RMB255.0 million (equivalent to US$36.0 million) for the above contracts, of which RMB4.4 million (equivalent to US$0.6 million) was transferred to construction in progress. On July 21, 2017, HLJ Xinda Group entered into three investment agreements with the Management Committee of Harbin Economic- Technological Development Zone with respect to the industrial project for 300,000 metric tons of biological composite materials, the industrial project for upgrading existing equipment for 100,000 metric tons of engineering plastics and the industrial project for a 3D printing intelligent manufacture demonstration factory and a 3D printing display and experience cloud factory (the "HLJ Project"). In order to fulfill the agreements, HLJ Xinda Group entered into an equipment purchase contract with Hailezi to purchase production equipment in November 2017, which will be used for 100,000 metric tons of engineering plastics located in Harbin, for a consideration of RMB939.7 million (equivalent to US$132.7 million). Pursuant to the contract with Hailezi, HLJ Xinda Group has prepaid RMB920.9 million (equivalent to US$130.1 million) in total as of December 31, 2018. During 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the contract amount was increased to RMB958.7 million (equivalent to US$135.4 million). During 2019 and the first quarter of 2020, all equipment has been delivered and the prepayment was transferred to construction in progress. In connection with the HLJ project, in June and July 2018, HLJ Xinda Group entered into two equipment purchase contracts with Hailezi to purchase production equipment, which will be used for 300,000 metric tons of biological based composite material, located in Harbin, for a consideration of RMB1,906.8 million (equivalent to US$269.3 million). Pursuant to the contracts with Hailezi, HLJ Xinda Group has prepaid RMB540.0 million (equivalent to US$76.3 million) as of June 30, 2020. On March 17, 2017, Sichuan Xinda entered into a definitive agreement with the People's Government of Shunqing District, Nanchong City of Sichuan Province for the production of 300,000 metric tons of bio-composite materials and additive manufacturing and 20,000 metric tons of functional masterbatch, a high-end color additive process in plastics manufacturing (the "Nanchong Project"). The Nanchong Project will be located in a land area of 250 mu (equivalent to 41.2 acres), with 215 mu designated for bio-composite materials and additive manufacturing production and 35 mu to be designated for functional masterbatch production. The projected total capital expenditures for the project is approximately RMB2.5 billion (equivalent to US$353.1 million). In connection with the Nanchong Project, Sichuan Xinda entered into equipment purchase contracts with Hailezi to purchase production equipment and testing equipment. Pursuant to the contracts with Hailezi, Sichuan Xinda prepaid RMB1,728.9 million (equivalent to US$244.2 million) in the first quarter of year 2017. In 2017, in order to ensure the traceability of the product and management of supply chain, Sichuan Xinda expected to launch an integrated ERP system, which resulted in the equipment to be purchased under the original contracts with Hailezi not meeting the production requirements. Hailezi agreed to refund the prepayment in the amount of RMB1,704.9 million (equivalent to US$240.8 million) by the end of March 2018, the remaining uncancelled amount is RMB24.0 million (equivalent to US$3.4 million). As of December 31, 2017, Sichuan Xinda signed a supplementary agreement with Hailezi, pursuant to the agreement, Sichuan Xinda agreed to pay RMB12.4 million (equivalent to US$1.8 million) to Hailezi for the compensation of Hailezi due to the termination of the purchase contracts. In January 2018, Hailezi refunded the above-mentioned prepayment. The Company received the testing equipment in the amount of RMB3.2 million (equivalent to US$0.5 million) in November 2018, the remaining balance of the uncancelled prepayment as of June 30, 2020 was RMB20.8 million (equivalent to US$2.9 million). In connection with the Nanchong Project, on June 21, 2018, Sichuan Xinda entered into another equipment purchase contract with Hailezi to purchase production equipment and testing equipment for a consideration of RMB1,900 million (equivalent to US$268.4 million). Pursuant to the contract with Hailezi, Sichuan Xinda has prepaid RMB1,710 million (equivalent to US$241.6 million) as of June 30, 2020. On December 3, 2019, HLJ Xinda Group entered into two equipment purchase contracts with Hailezi to purchase production equipment used to upgrade Qinling Road Factory (“Qinling Road Project”) and Jiangnan Road Factory (“Jiangnan Road Project”) in Harbin. Total consideration is RMB162.0 million (equivalent to US$22.9 million) and RMB713.6 million (equivalent to US$100.8 million) for Qinling Road Project and Jiangnan Road Project respectively. Pursuant to the contracts with Hailezi, HLJ Xinda has prepaid RMB129.6 million (equivalent to US$18.3 million) and RMB570.9 million (equivalent to US$80.6 million) respectively for Qinling Road Project and Jiangnan Road Project as of June 30, 2020. During the six months period ended June 30, 2020, the Company has entered into several equipment purchase contracts with Hailezi. As of June 30, 2020, the prepayment balance for those contracts was US$0.8 million. (ii) Since November 15, 2016, Sichuan Xinda entered into decoration contracts with Sichuan Beijin Construction Engineering Company Limited ("Beijin Construction") to perform indoor and outdoor decoration work for a consideration of RMB264.3 million (equivalent to US$37.3 million). Pursuant to the contracts with Beijin Construction, Sichuan Xinda has prepaid RMB122.8 million (equivalent to US$17.3 million) as of June 30, 2020, of which RMB74.0 million (equivalent to US$10.4 million) was transferred to construction in progress. (iii) On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. The Company prepaid RMB33.9 million (equivalent to US$4.8 million) as of June 30, 2020. On May 31, 2019, Dubai Xinda entered into an equipment purchase contract with Peaceful for a total consideration of US$18.8 million to purchase storage and testing equipment. The Company has prepaid US$17.0 million as of June 30, 2020. (iv) On January 10, 2020, Heilongjiang Xinda New Materials Co., Ltd. (“HLJ New Materials”), a subsidiary of the Company, entered into a purchase agreement with Harbin Xinda High-Tech Co., Ltd. (“Xinda High-Tech”) to purchase the land use right, buildings and facilities of Dalian Road Factory from Xinda High-Tech for a consideration of RMB120.3 million (equivalent to USD17.0 million). On January 23, 2020, HLJ New Materials has paid the consideration to Xinda High-Tech. As of June 30, 2020, the transfer procedures were not completed and were expected to be completed in the fourth quarter of 2020.
Schedule of Summarized Balance of Prepayments	The table below summarized the balance of prepayments to Hailezi for each of the projects as of June 30, 2020 and December 31, 2019, and the movements of the prepayments: (in millions US$) Year Projects Balance as of December 31, 2019 Prepaid in 2020 Transfer to CIP in 2020 Effect of foreign currency exchange rate changes Balance as of June 30, 2020 2017 Storage system 36.7 - (0.6 ) (0.7 ) 35.4 2017 HLJ Project 5.9 - (5.9 ) - - 2018 HLJ Project 77.4 - - (1.1 ) 76.3 2017 Nanchong Project 3.0 - - (0.1 ) 2.9 2018 Nanchong Project 245.1 - - (3.5 ) 241.6 2019 Qinling Road Project 18.6 - - (0.3 ) 18.3 2019 Jiangnan Road Project 81.8 - - (1.2 ) 80.6 2020 Others - 2.6 (1.8 ) - 0.8 Total 468.5 2.6 (8.3 ) (6.9 ) 455.9

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of Short-term Loans	The Company has credit facilities with several banks under which they draw short-term and long-term bank loans as described below. (a) Current June 30, 2020 December 31, 2019 US$ US$ Unsecured loans 460,785,297 407,657,464 Loans secured by accounts receivable (i) 63,563,811 64,505,031 Guaranteed loan (ii) 35,313,228 — Loans secured by restricted cash (iii) 14,125,291 14,334,451 Syndicated loan facility (iv) 121,638,806 128,020,559 Loan secured by inventories (v) 5,650,117 5,733,781 Current portion of long-term bank loans (note b) 69,867,344 59,923,573 Total short-term loans, including current portion of long-term bank loans 770,943,894 680,174,859 (i) As of June 30, 2020 and December 31, 2019, the Company had US$56.5 million and US$64.5 million of short-term bank loans obtained from Longjiang Bank secured by accounts receivables of US$80.8 million and US$92.2 million, respectively. (ii) In January 2019, Sichuan Xinda obtained a one-year short-term unsecured bank loan of RMB250.0 million (equivalent to US$35.3 million) from Nanchong Rural Commercial Bank. Pursuant to the extension agreement dated January 2020, the loan maturity date was extended to July 2020 with a third-party guarantee provided by Nanchong Shuntou Development Group Co., Ltd. (“Shuntou”). Pursuant to the loan contract, the ratio of liabilities to assets of Sichuan Xinda shall not exceed 55%. As of June 30, 2020, Sichuan Xinda’s ratio of liabilities to assets was higher than 55%, which resulted in the breach of the loan covenant, and Nanchong Rural Commercial Bank has the right to declare the above loan be immediately due and payable. The loan was subsequently repaid in July 2020. (iii) As of June 30, 2020 and December 31, 2019, the Company had US$14.1 million and US$14.3 million of short-term bank loans secured by restricted cash of US$1.4 million and US$1.4 million, respectively. (iv) On October 2, 2019, Xinda Holding (HK) Company Limited ("Xinda Holding (HK)"), a wholly owned subsidiary of the Company, entered into a facility agreement for a one-year loan facility in an aggregate amount of US$135.0 million with a consortium of banks and financial institutions led by Industrial and Commercial Bank of China (Macau) Limited. The Company made the drawdown on December 18, 2019. The interest rate of the loan is 2.0% plus three-month LIBOR. The Company incurred agency fee and arrangement fee in the amount of US$7.2 million for the loan of which the unamortized balance was US$3.4 million as of June 30, 2020. Loan issuance costs are presented on the consolidated balance sheets as a direct deduction from the carrying amount of the loan and amortized to interest expense using the effective interest rate of 10.29% as of June 30, 2020. Xinda Holding (HK) prepaid US$10.0 million loan during the six months period ended June 30, 2020. (v) In November 2019, the Company obtained a one-year short-term loan of RMB40.0 million (equivalent to US$5.7 million) from Bank of Inner Mongolia. As of June 30, 2020, the Company pledged inventories in amount of approximately US$39.6 million for the above loan and bills payable in amount of RMB142.0 million (equivalent to US$20.1 million) issued by Bank of Inner Mongolia.
Schedule of Long-Term Debt	(b) Non-current June 30, December 31, 2020 2019 US$ US$ Secured loans (i) 1,742,389 1,742,389 Unsecured loans (ii ) 643,577,089 380,637,597 Less: current portion (69,867,344 ) (59,923,573 ) Total long-term bank loans, excluding current portion 575,452,134 322,456,413 (i) On December 26, 2018, the Company obtained a five-year secured loan of AED8.0 million (equivalent to US$2.2 million) from National Bank of Umm Al Qaiwain at an interest rate of three-month EBOR (0.72% as of June 30, 2020) plus 3.75%. The long-term loan was secured by an undated cheque of AED8.8 million (US$2.4 million) favouring the bank provided by Dubai Xinda. The cheque would not be cashed by the bank unless Dubai Xinda defaults. Principal will be repaid in ten half-yearly installments of AED0.8 million (equivalent to US$0.2 million) each. The Company repaid AED1.6 million (equivalent to US$0.5 million) during 2019. Affected by the COVID-19 pandemic, National Bank of Umm Al Qaiwain allowed the Company to apply for a six-month extension for the half-yearly installments of AED0.8 million (equivalent to US$0.2 million) due in June 2020. As of June 30, 2020, the extension application was still under approval process by the bank. (ii) As of June 30, 2020 and December 31, 2019, the Company's long-term unsecured bank loans (excluding the current portion of long-term bank loans) bear a weighted average interest rate of 5.2% and 5.5% per annum, respectively. The Company’s long-term unsecured bank loans (excluding the current portion of long-term bank loans) will mature serially from 2021 to 2027.
Maturities on long-term bank loans	Maturities on long-term bank loans (including current portion) are as follows: June 30, 2020 US$ Six months ended December 31, 2020 24,448,606 2021 83,774,812 2022 208,896,642 2023 160,051,385 2024 41,020,411 After 2024 127,127,622 Total 645,319,478

Accrued expenses and other cu_2

Accrued expenses and other current liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Accrued Liabilities, Current [Abstract]
Schedule of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consist of the following: June 30, 2020 December 31, 2019 US$ US$ Payables for purchase of property, plant and equipment 16,905,908 12,445,494 Accrued freight expenses 21,193,634 17,665,998 Accrued interest expenses 15,351,917 15,650,965 Contract liabilities (i) 2,195,421 17,922,160 Non income tax payables 4,282,890 6,056,024 Others (ii) 16,087,957 16,809,747 Total accrued expenses and other current liabilities 76,017,727 86,550,388 (i) Contract liabilities mainly represent the advance received from customers in the PRC for the finished goods and raw materials purchases. The change in contract liabilities primarily represents the cash received, less amounts recognized as revenues during the period. (ii) Others mainly represent accrued payroll and employee benefits, accrued audit and consulting fees, electricity fee and other accrued miscellaneous operating expenses.

Related party transactions (Tab

Related party transactions (Tables)	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
Schedule of Significant Related Party Transactions	The related party transactions are summarized as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Transactions with related parties: Revenues resulting from transactions with a related party: Sales to Macromolecule Composite Materials (i) — 308,800 — 308,800 Financing transactions with related parties: Interest-free advances from Mr. Jie Han — 2,950,723 — 2,950,723 Interest-free advances from a senior management employee in HLJ Xinda Group — — — 284,008 Repayment of interest-free advances from management employees in HLJ Xinda Group and Sichuan Xinda — (4,439,451 ) — (4,439,451 ) Interest-free advances from Macromolecule Composite Materials (i) — 64,155,128 — 64,155,128 Repayment of interest-free advances from Macromolecule Composite Materials (i) — (60,713,009 ) — (60,713,009 ) Interest-free advances from Mr. Qingwei Ma 1,138,498 — 1,138,498 — Repayment of interest-free advances from Mr. Qingwei Ma (1,138,498 ) — (1,138,498 ) — Total financing transactions with related parties — 1,953,391 — 2,237,399 (i) On December 26, 2018, Shanghai Sales set up Heilongjiang Xinda Macromolecule Composite Materials Company Limited (“Macromolecule Composite Materials”). On April 22, 2019, Shanghai Sales transferred 97.5% equity interest in Macromolecule Composite Materials to Harbin Shengtong Engineering Plastics Co., Ltd. ("Harbin Shengtong"). Mr. Xigang Chen, who was the general manager of Sichuan Xinda, was the general manager and also the principal shareholder of Harbin Shengtong.
Schedule of Related Parties Balances	The related party balances are summarized as follows: June 30, 2020 December 31, 2019 US$ US$ Amounts due to related parties: Mr. Jie Han (the Chairman and Chief Executive Officer) 12,317,254 12,499,642 Mr. Jie Han’s wife 3,099,054 3,137,539 Mr. Jie Han’s son 9,181,439 9,317,393 Mr. Qingwei Ma (Chief Operating Officer) 1,130,023 1,146,756 Senior management employee in HLJ Xinda Group 148,392 150,589 Total amounts due to related parties 25,876,162 26,251,919

Other non-current liabilities (

Other non-current liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Other Liabilities, Noncurrent [Abstract]
Schedule of other non-current liabilities	June 30, December 31, 2020 2019 US$ US$ Income tax payable-noncurrent (i) 78,110,645 86,414,852 Deferred income tax liabilities 3,735,381 4,613,524 Total other non-current liabilities 81,846,026 91,028,376 (i) Income tax payable-noncurrent represents the repatriation tax, the accumulative balance of unrecognized tax benefits since 2016 and related accrued interest. According to the Tax Cuts and Jobs Act enacted on December 22, 2017, the management recognized the amount of U.S. tax corporate income tax is US$70,965,148 based on the deemed repatriation to the United States of accumulated earnings mandated by the U.S. tax reform, US$22,708,848 of which due payable within one year was classified as current liabilities.

Stockholders' equity (Tables)

Stockholders' equity (Tables)	6 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Schedule of Changes in Stockholders' Equity	The changes of each caption of stockholders' equity for the six-month period ended June 30, 2020 are as follows: Series B Preferred Stock Common Stock Accumulated Number of Shares Amount Number of Shares Amount Treasury Stock Additional Paid-in Capital Retained Earnings Other Comprehensive Loss Noncontrolling Interest Total Stockholders' Equity US$ US$ US$ US$ US$ US$ US$ US$ Balance as of January 1, 2020 1,000,000 100 66,948,841 6,697 (92,694 ) 184,208,447 720,159,368 (67,907,807 ) — 836,374,111 Net income — — — — — — 6,537,317 — — 6,537,317 Other comprehensive loss — — — — — — — (12,177,250 ) — (12,177,250 ) Contribution from noncontrolling interests — — — — — — — — 45,907,197 45,907,197 Balance as of June 30, 2020 1,000,000 100 66,948,841 6,697 (92,694 ) 184,208,447 726,696,685 (80,085,057 ) 45,907,197 876,641,375

Stock based compensation (Table

Stock based compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Schedule of Nonvested Share Activity	A summary of the non-vested shares activity for the six-month period ended June 30, 2020 is as follows: Number of Nonvested Shares Weighted Average Grant date Fair Value US$ Outstanding as of December 31, 2019 — — Granted 4,000,000 1.5 Forfeited (4,000,000 ) 1.5 Outstanding as of June 30, 2020 — —

Earnings per share (Tables)

Earnings per share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings per common share:
Calculation of Basic and Diluted Earnings Per Share	Basic and diluted earnings per share are calculated as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Net income attributable to China XD Plastics Company Limited 17,575,811 40,111,317 6,537,317 51,092,032 Less: Earnings allocated to participating Series D convertible preferred stocks — (9,586,142 ) — (12,210,406 ) Net income for basic and diluted earnings per share 17,575,811 30,525,175 6,537,317 38,881,626 Denominator Denominator for basic and diluted earnings per share 66,948,841 50,948,841 66,948,841 50,948,841 Earnings per share: Basic and diluted 0.26 0.60 0.1 0.76
Summary of Potentially Dilutive Securities	The following table summarizes potentially dilutive securities excluded from the calculation of diluted earnings per share for the three-month periods and six-month periods ended June 30, 2020 and 2019 because their effects are anti-dilutive: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 Shares issuable upon conversion of Series D convertible preferred stocks — 16,000,000 — 16,000,000

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2020
Revenues [Abstract]
Revenues	Revenues consist of the following: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Modified Polyamide 66 (PA66) 147,968,469 92,259,170 197,201,570 176,137,415 Modified Polyamide 6 (PA6) 96,196,177 105,421,049 116,495,139 171,589,143 Plastic Alloy 7,597,061 71,411,826 18,144,460 134,548,451 Modified Polypropylene (PP) 21,929,333 40,795,250 26,270,108 77,852,304 Modified Acrylonitrile Butadiene Styrene (ABS) 6,384,587 14,777,635 7,377,815 28,225,264 Polyoxymethylenes (POM) 374,407 2,302,901 876,354 4,899,362 Polyphenylene Oxide (PPO) — 9,133,246 — 25,992,396 Polylactide (PLA) 155,882 12,751,971 358,037 29,263,327 Polyethylene (PE) 851,805 1,831,333 1,437,050 3,604,077 Semi-finished goods — 112,300,015 58,182,353 112,300,015 Others 1,766,266 89,484 1,718,779 128,133 Total Revenue 283,223,987 463,073,880 428,061,665 764,539,887 The following table provides sales by major customer group for the three-month and six-month periods ended June 30, 2020 and 2019 Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Distributors 276,792,623 322,799,104 384,318,727 605,615,795 Direct customers 4,665,098 140,185,292 42,024,159 158,729,179 Others 1,766,266 89,484 1,718,779 128,133 Total Revenue 283,223,987 463,073,880 428,061,665 764,539,887

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Schedule of Lease Cost	Lease cost for the three-month and six-month periods ended June 30, 2020 and 2019 is as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Operating lease cost 572,691 423,657 1,147,788 847,228 Short-term lease cost 237,421 154,019 368,495 333,214 Total lease cost 810,112 577,676 1,516,283 1,180,442
Schedule of Maturities of Operating Lease Liabilities	As of June 30, 2020, the maturities of the operating lease liabilities are as follows: Remaining Lease Payments US$ Six months ended December 31, 2020 693,360 2021 1,407,825 2022 1,408,184 2023 1,424,003 2024 1,443,311 Thereafter 20,567,357 Total remaining lease payments 26,944,040 Less: imputed interest (11,280,932 ) Total operating lease liabilities 15,663,108 Less: current portion (1,413,018 ) Non-current operating lease liabilities 14,250,090 Weighted-average remaining lease term 16.8 years Weighted-average discount rate 6.7 %
Schedule of Supplemental Disclosure of Cash Flow Information	Supplemental cash flow information related to leases is as follows: Three-Month Period Ended June 30, Six-Month Period Ended June 30, 2020 2019 2020 2019 US$ US$ US$ US$ Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 301,873 1,550,512 666,063 1,679,029

Basis of presentation, signific

Basis of presentation, significant concentrations and risks (Sales and Purchase Concentration) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019
Concentration Risk [Line Items]
Revenues	$ 283,223,987	$ 463,073,880		$ 428,061,665	$ 764,539,887
Customer Concentration Risk [Member] | Revenues [Member] | Distributor A, located in PRC [Member]
Concentration Risk [Line Items]
Revenues	$ 41,857,743	$ 58,501,659		$ 67,770,607	$ 115,001,391
Concentration risk, percentage	14.80%	12.60%		15.80%	15.00%
Customer Concentration Risk [Member] | Revenues [Member] | Distributor B, located in PRC [Member]
Concentration Risk [Line Items]
Revenues	$ 33,149,907	$ 36,906,778		$ 47,135,094	$ 74,605,665
Concentration risk, percentage	11.70%		[1]	11.00%		[1]
Customer Concentration Risk [Member] | Revenues [Member] | Distributor C, located in PRC [Member]
Concentration Risk [Line Items]
Revenues	$ 32,613,997	$ 33,077,889		$ 46,073,857	$ 55,046,388
Concentration risk, percentage	11.50%		[1]	10.80%		[1]
Customer Concentration Risk [Member] | Revenues [Member] | Distributor D, located in PRC [Member]
Concentration Risk [Line Items]
Revenues	$ 30,205,164	$ 27,263,818		$ 45,647,181	$ 54,588,405
Concentration risk, percentage	10.70%		[1]	10.70%		[1]
Raw Materials Supplier Concentration Risk [Member] | Purchase of Raw Materials [Member] | Major Raw Materials Distributors [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	35.50%	31.70%		32.00%	33.20%
[1]	Less than 10%

Basis of presentation, signif_2

Basis of presentation, significant concentrations and risks (Cash Concentration) (Details)	Jun. 30, 2020USD ($)	Jun. 30, 2020CNY (¥)	Jun. 30, 2020HKD ($)	Jun. 30, 2020MOP (MOP$)	Dec. 31, 2019USD ($)
Restricted Cash and Cash Equivalents Items [Line Items]
Cash balance insured by the government authority	$ 1,034,565				$ 1,063,709
Restricted cash	164,738,656				211,231,244
RMB denominated bank deposits with Financial Institutions in the PRC [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	288,607,567				226,488,069
Cash balance insured by the government authority | ¥		¥ 500,000
Renminbi ("RMB") denominated bank deposits with Financial Institutions in Hong Kong Special Administrative Region ("Hong Kong SAR")[Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	8,360				8,134
Renminbi ("RMB") denominated bank deposits with Financial Institutions in Dubai, UAE [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	329
U.S. dollar denominated bank deposits with Financial Institution in the U.S. [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	5,848				3,057
U.S. dollar denominated bank deposits with Financial Institution in the PRC [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	16,784				16,868
U.S. dollar denominated bank deposits with Financial Institution in Hong Kong SAR [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	483,590				590,131
Cash balance insured by the government authority			$ 500,000
U.S. dollar denominated bank deposits with Financial Institution in Macau Special Administrative Regio [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	1,290,068				1,288,792
Cash balance insured by the government authority | MOP$				MOP$ 500000
U.S. dollar denominated bank deposits with Financial Institution in Dubai, UAE [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	166,837				4,549
HK dollar denominated bank deposits with Financial institution in Hong Kong SAR [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	156				156
Dirham denominated bank deposits with Financial Institution in Dubai, UAE [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents, restricted cash and time deposits maintained at banks	217,095				33,263
Collateral For Bills Payable Related To Purchase Of Raw Materials [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	105,763,684				151,498,873
Government grant [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	68,909				69,879
Syndicated Loans Obtained from Commercial Bank of China (Macau) [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	135,000,000
Short-term bank loans obtained from Commercial Bank of China (Macau) [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	57,493,534				58,229,047
Pledged as collateral to settle short-term bank loans obtained from Postal Savings Bank of China [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	14,100,000
Short-term bank loans obtained from Postal Savings Bank of China [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,412,529				$ 1,433,445

Accounts receivable (Schedule o

Accounts receivable (Schedule of Accounts Receivable) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Accounts receivable	$ 247,233,447	$ 284,921,071
Allowance for doubtful accounts	(62,848,465)	(62,849,018)
Accounts receivable, net	184,384,982	222,072,053
Notes receivable	35,313	107,845
Accounts receivable pledged as collateral for short-term bank loans	$ 201,224,940	92,198,221
Customer in UAE [Member]
Accounts receivable		62,800,000
Allowance for doubtful accounts		$ (62,800,000)

Accounts receivable (Schedule_2

Accounts receivable (Schedule of Aging of Accounts Receivable) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Aging:
current	$ 164,687,690	$ 189,180,366
Total accounts receivable	247,233,447	284,921,071
1-3 months past due [Member]
Aging:
Past due	2,251,085	45,363,405
4-6 months past due [Member]
Aging:
Past due	24,774,501	28,865,350
7-12 months past due [Member]
Aging:
Past due	41,495,498	5,703,612
Greater than one year past due [Member]
Aging:
Past due	$ 14,024,673	$ 15,808,338

Inventories (Details)

Inventories (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Raw materials and semi-finished goods	$ 622,002,570	$ 637,278,817
Finished goods	56,540,434	5,230,717
Total inventories	678,543,004	642,509,534
One One-Year Secured Loans [Member]
Pledged inventories amount	$ 39,600,000	$ 40,100,000

Prepaid expenses and other cu_3

Prepaid expenses and other current assets (Narrative) (Details)	1 Months Ended	6 Months Ended
	Dec. 31, 2017USD ($)	Jun. 30, 2020USD ($)	Aug. 31, 2020USD ($)	Aug. 31, 2020CNY (¥)	Jun. 30, 2020CNY (¥)
Hong Kong Grand Royal Trading Co.,Ltd [Member]
Prepaid	$ 48,200,000
Advance payment		$ 42,600,000
Heilongjiang Xinda Enterprise Group [Member]
Receivable, Related Parties		181,500,000
Heilongjiang Xinda Enterprise Group [Member] | China, Yuan Renminbi [Member]
Receivable, Related Parties | ¥					¥ 1,284,800,000
Heilongjiang Xinda Macromolecule [Member]
Receivable, Related Parties		86,500,000
Heilongjiang Xinda Macromolecule [Member] | China, Yuan Renminbi [Member]
Receivable, Related Parties | ¥					612,200,000
Guangzhou Peiqu International Trading LLC [Member]
Receivable, Related Parties		$ 40,500,000
Guangzhou Peiqu International Trading LLC [Member] | China, Yuan Renminbi [Member]
Receivable, Related Parties | ¥					¥ 286,700,000
Consideration for sales of Shanghai New Materials [Member] | Subsequent Event [Member]
Receivable, Related Parties			$ 308,500,000
Consideration for sales of Shanghai New Materials [Member] | China, Yuan Renminbi [Member] | Subsequent Event [Member]
Receivable, Related Parties | ¥				¥ 2,183,700,000

Prepaid expenses and other cu_4

Prepaid expenses and other current assets (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019
Prepaid Expense and Other Assets, Current [Abstract]
Advances to suppliers	[1]	$ 91,593,394	$ 118,166,925
Amounts due from third parties	[2]	308,491,066
Value added taxes receivables	[3]	3,072,424	6,239,719
Receivables from Hong Kong Grand Royal Trading Co., Ltd.	[4]		42,566,949
Interest receivable	[5]	491,601	615,049
Others	[6]	1,769,661	4,259,480
Total prepaid expenses and other current assets		$ 405,418,146	$ 171,848,122
[1]	Advances to suppliers are the advances to purchase raw materials.
[2]	During the three-month period ended June 30, 2020, the Company has lent RMB1,284.8 million (equivalent to US$181.5 million) to Heilongjiang Xinda Enterprise Group Shanghai New Materials Sales Company Limited ("Shanghai Sales"), a company formerly owned by the Company and was disposed in December 2018, RMB612.2 million (equivalent to US$86.5 million) to Heilongjiang Xinda Macromolecule Composite Materials Company Limited ("Macromolecule Composite Materials"), a company established by Shanghai Sales (details refer to note 9), and RMB286.7 million (equivalent to US$40.5 million) to Guangzhou Peiqu International Trading LLC, the Company's supplier and a related party of Hong Kong Grand Royal Trading Co., Ltd., as interest-free advances. The Company has subsequently collected the RMB2,183.7 million (equivalent to US$308.5 million) from the above third parties in August 2020.
[3]	Value added taxes receivables mainly represent the input taxes on purchasing equipment by Heilongjiang Xinda Enterprise Group Company Limited ("HLJ Xinda Group") and Sichuan Xinda Enterprise Group Company Limited ("Sichuan Xinda"), which are to be net off with output taxes. Value added taxes receivables were recognized in operating activities in consolidated statements of cash flows.
[4]	Hong Kong Grand Royal Trading Co., Ltd. ("Hong Kong Grand Royal") is a raw material supplier of AL Composites Materials FZE ("Dubai Xinda"). Dubai Xinda has prepaid US$48.2 million to Hong Kong Grand Royal in 2017 for purchase of raw materials. Due to the price fluctuation of raw materials, Hong Kong Grand Royal could not purchase and deliver the raw materials to Dubai Xinda. In July 2019, both parties entered into a supplemental agreement to cancel the original purchase agreements and Hong Kong Grand Royal shall settle the advance payment. The US$42.6 million advance payment as of December 31, 2019 was settled during the six-month period ended June 30, 2020.
[5]	Interest receivable mainly represents interest income accrued from time deposits and restricted cash.
[6]	Others mainly include prepaid miscellaneous service fee, staff advance and prepaid rental fee.

Property, plant and equipment_3

Property, plant and equipment, net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 1,036,576,762		$ 1,036,576,762		$ 1,068,529,308
Less accumulated depreciation	(222,800,656)		(222,800,656)		(238,209,592)
Property, plant and equipment, net	813,776,106		813,776,106		830,319,716
Capitalized interest expense	1,304,561	$ 357,175	2,641,600	$ 744,499
Machinery, equipment and furniture [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	518,520,814		518,520,814		575,317,840
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	1,799,529		1,799,529		1,709,182
Workshops and buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	154,518,665		154,518,665		156,256,761
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 361,737,754		$ 361,737,754		$ 335,245,525

Property, plant and equipment_4

Property, plant and equipment, net (Allocated Depreciation Expense) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Total depreciation expense	$ 12,950,084	$ 14,987,953	$ 26,534,688	$ 30,157,405
Cost of revenues [Member]
Property, Plant and Equipment [Line Items]
Total depreciation expense	11,731,493	13,522,087	23,988,269	26,981,070
General and administrative expenses [Member]
Property, Plant and Equipment [Line Items]
Total depreciation expense	603,849	519,248	1,214,452	1,205,771
Research and development expenses [Member]
Property, Plant and Equipment [Line Items]
Total depreciation expense	614,016	946,164	1,326,745	1,968,287
Selling expenses [Member]
Property, Plant and Equipment [Line Items]
Total depreciation expense	$ 726	$ 454	$ 5,222	$ 2,277

Prepayments to equipment and _3

Prepayments to equipment and construction suppliers (Narrative) (Details)

1 Months Ended

6 Months Ended

12 Months Ended

Nov. 30, 2018USD ($)

Nov. 30, 2018CNY (¥)

Jul. 31, 2018USD ($)T

Jun. 25, 2018T

Jul. 21, 2017T

Mar. 17, 2017USD ($)aT

Mar. 17, 2017CNY (¥)aT

Jun. 30, 2020USD ($)T

Jun. 30, 2020CNY (¥)T

Dec. 31, 2017USD ($)

Dec. 31, 2017CNY (¥)

Jun. 30, 2020CNY (¥)

Jan. 10, 2020USD ($)

Jan. 10, 2020CNY (¥)

Dec. 31, 2019USD ($)

Dec. 03, 2019USD ($)

Dec. 03, 2019CNY (¥)

Sep. 25, 2019USD ($)

Sep. 25, 2019CNY (¥)

Jun. 30, 2019USD ($)

Jun. 30, 2019CNY (¥)

May 31, 2019USD ($)

Jun. 21, 2018USD ($)

Jun. 21, 2018CNY (¥)

Dec. 31, 2017CNY (¥)

Mar. 17, 2017CNY (¥)

Nov. 15, 2016USD ($)

Nov. 15, 2016CNY (¥)

Oct. 20, 2016USD ($)

Oct. 20, 2016CNY (¥)

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

$ 502,049,222

$ 495,570,421

Sichuan Xinda [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

20,000,000

Sichuan Xinda [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

300,000

300,000

Prepayments to equipment suppliers

1,300,000

$ 241,600,000

$ 17,300,000

Total consideration

$ 110,500,000

$ 268,400,000

37,300,000

Prepaid

$ 244,200,000

Sichuan Xinda [Member] | Equipment [Member] | Construction in progress [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

$ 10,400,000

Sichuan Xinda [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

¥ 141,500,000

Sichuan Xinda [Member] | China, Yuan Renminbi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

9,400,000

¥ 1,710,000,000

¥ 122,800,000

Total consideration | ¥

¥ 1,900,000,000

¥ 782,200,000

264,300,000

Prepaid | ¥

¥ 1,728,900,000

Sichuan Xinda [Member] | China, Yuan Renminbi [Member] | Equipment [Member] | Construction in progress [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

¥ 74,000,000

Hailezi [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[1]

455,858,879

468,529,714

Total consideration

40,100,000

$ 47,000,000

Prepayments to be refunded from termination of contracts

$ 500,000

1,800,000

Refunded amount in agreement

52,100,000

Refund of prepayment

2,900,000

Hailezi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

800,000

$ 87,800,000

Hailezi [Member] | Equipment [Member] | Qinling Road Project [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 22,900,000

Prepaid

18,300,000

Hailezi [Member] | Equipment [Member] | Jiangnan Road Project [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 100,800,000

Prepaid

$ 80,600,000

Hailezi [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 332,500,000

283,700,000

Prepayments to be refunded from termination of contracts | ¥

¥ 3,200,000

¥ 12,400,000

Refunded amount in agreement | ¥

369,100,000

Refund of prepayment | ¥

¥ 20,800,000

Hailezi [Member] | China, Yuan Renminbi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

¥ 621,600,000

Hailezi [Member] | China, Yuan Renminbi [Member] | Equipment [Member] | Qinling Road Project [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 162,000,000

Prepaid | ¥

129,600,000

Hailezi [Member] | China, Yuan Renminbi [Member] | Equipment [Member] | Jiangnan Road Project [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 713,600,000

Prepaid | ¥

¥ 570,900,000

HLJ Xinda Group [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

300,000

300,000

Net capital expenditures

$ 600,000

Prepaid

36,000,000

HLJ Xinda Group [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

300,000

300,000

300,000

Prepayments to equipment suppliers

130,100,000

Total consideration

$ 269,300,000

132,700,000

$ 135,400,000

Prepaid

76,300,000

HLJ Xinda Group [Member] | Property, Plant and Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

100,000

HLJ Xinda Group [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Net capital expenditures | ¥

4,400,000

Prepaid | ¥

¥ 255,000,000

HLJ Xinda Group [Member] | China, Yuan Renminbi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

920,900,000

Total consideration

$ 1,906,800,000

939,700,000

¥ 958,700,000

Prepaid

540,000,000

Nanchong Project [Member] | Property, Plant and Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

20,000

20,000

Area of property | a

41.2

41.2

Net capital expenditures

$ 353,100,000

Refunded amount in agreement

240,800,000

Remaining amount of prepaid prepayments

$ 3,400,000

Nanchong Project [Member] | China, Yuan Renminbi [Member] | Property, Plant and Equipment [Member]

Long-term Purchase Commitment [Line Items]

Net capital expenditures | ¥

¥ 2,500,000,000

Refunded amount in agreement | ¥

1,704,900,000

Remaining amount of prepaid prepayments | ¥

¥ 24,000,000

Peaceful [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[2]

21,776,143

19,967,014

Peaceful [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

17,000,000

$ 18,800,000

Total consideration

$ 12,700,000

Prepaid

4,800,000

Peaceful [Member] | China, Yuan Renminbi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

¥ 33,900,000

Total consideration | ¥

¥ 89,800,000

Xinda High Tech [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[3]

$ 16,992,725

Xinda High Tech [Member] | Land use right, buildings [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 17,000,000

Xinda High Tech [Member] | China, Yuan Renminbi [Member] | Land use right, buildings [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 120,300,000

[1]

On September 26, 2016 and February 28, 2017, HLJ Xinda Group entered into equipment purchase contracts with Hailezi for a total consideration of RMB782.2 million (equivalent to US$110.5 million) to purchase storage facility and other equipment, which will be used for upgrading the storage system of warehouse located in Harbin, China. Pursuant to the contracts with Hailezi, HLJ Xinda Group prepaid RMB621.6 million (equivalent to US$87.8 million) during the first quarter of 2017. Due to a redesign of outdoor storage facility in June 2017, HLJ Xinda Group entered into a supplementary agreement with Hailezi, which decreased the original contract amount to RMB283.7 million (equivalent to US$40.1 million). Hailezi refunded RMB369.1 million (equivalent to US$52.1 million) to HLJ Xinda Group on June 22, 2017. On September 25, 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the total contract amount was increased to RMB332.5 million (equivalent to US$47.0 million). As of June 30, 2020, HLJ Xinda Group has prepaid RMB255.0 million (equivalent to US$36.0 million) for the above contracts, of which RMB4.4 million (equivalent to US$0.6 million) was transferred to construction in progress.

[2]

On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. The Company prepaid RMB33.9 million (equivalent to US$4.8 million) as of June 30, 2020.

[3]

On January 10, 2020, Heilongjiang Xinda New Materials Co., Ltd. ("HLJ New Materials"), a subsidiary of the Company, entered into a purchase agreement with Harbin Xinda High-Tech Co., Ltd. ("Xinda High-Tech") to purchase the land use right, buildings and facilities of Dalian Road Factory from Xinda High-Tech for a consideration of RMB120.3 million (equivalent to USD17.0 million). On January 23, 2020, HLJ New Materials has paid the consideration to Xinda High-Tech. As of June 30, 2020, the transfer procedures were not completed and were expected to be completed in the fourth quarter of 2020.

Prepayments to equipment and _4

Prepayments to equipment and construction suppliers (Schedule of Total Prepayments to Equipment Suppliers) (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers		$ 502,049,222	$ 495,570,421
Hailezi [Member]
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers	[1]	455,858,879	468,529,714
Beijin Construction [Member]
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers	[2]	6,863,810	6,795,439
Peaceful [Member]
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers	[3]	21,776,143	19,967,014
Xinda High-Tech [Member]
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers	[4]	16,992,725
Others [Member]
Long-term Purchase Commitment [Line Items]
Total prepayments to equipment and construction suppliers		$ 557,665	$ 278,254
[1]	On September 26, 2016 and February 28, 2017, HLJ Xinda Group entered into equipment purchase contracts with Hailezi for a total consideration of RMB782.2 million (equivalent to US$110.5 million) to purchase storage facility and other equipment, which will be used for upgrading the storage system of warehouse located in Harbin, China. Pursuant to the contracts with Hailezi, HLJ Xinda Group prepaid RMB621.6 million (equivalent to US$87.8 million) during the first quarter of 2017. Due to a redesign of outdoor storage facility in June 2017, HLJ Xinda Group entered into a supplementary agreement with Hailezi, which decreased the original contract amount to RMB283.7 million (equivalent to US$40.1 million). Hailezi refunded RMB369.1 million (equivalent to US$52.1 million) to HLJ Xinda Group on June 22, 2017. On September 25, 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the total contract amount was increased to RMB332.5 million (equivalent to US$47.0 million). As of June 30, 2020, HLJ Xinda Group has prepaid RMB255.0 million (equivalent to US$36.0 million) for the above contracts, of which RMB4.4 million (equivalent to US$0.6 million) was transferred to construction in progress.
[2]	Since November 15, 2016, Sichuan Xinda entered into decoration contracts with Sichuan Beijin Construction Engineering Company Limited ("Beijin Construction") to perform indoor and outdoor decoration work for a consideration of RMB264.3 million (equivalent to US$37.3 million). Pursuant to the contracts with Beijin Construction, Sichuan Xinda has prepaid RMB122.8 million (equivalent to US$17.3 million) as of June 30, 2020, of which RMB74.0 million (equivalent to US$10.4 million) was transferred to construction in progress.
[3]	On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. The Company prepaid RMB33.9 million (equivalent to US$4.8 million) as of June 30, 2020.
[4]	On January 10, 2020, Heilongjiang Xinda New Materials Co., Ltd. ("HLJ New Materials"), a subsidiary of the Company, entered into a purchase agreement with Harbin Xinda High-Tech Co., Ltd. ("Xinda High-Tech") to purchase the land use right, buildings and facilities of Dalian Road Factory from Xinda High-Tech for a consideration of RMB120.3 million (equivalent to USD17.0 million). On January 23, 2020, HLJ New Materials has paid the consideration to Xinda High-Tech. As of June 30, 2020, the transfer procedures were not completed and were expected to be completed in the fourth quarter of 2020.

Prepayments to equipment and _5

Prepayments to equipment and construction suppliers (Schedule of Summarized the Balance of Prepayments) (Details) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Storage system project in year 2017 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	$ 36.7
Prepaid in 2020
Transfer to CIP in 2020	(0.6)
Effect of foreign currency exchange rate changes	(0.7)
Balance as of June 30, 2020	35.4
HLJ project in year 2017 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	5.9
Prepaid in 2020
Transfer to CIP in 2020	(5.9)
Effect of foreign currency exchange rate changes
Balance as of June 30, 2020
HLJ project in year 2018 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	77.4
Prepaid in 2020
Transfer to CIP in 2020
Effect of foreign currency exchange rate changes	(1.1)
Balance as of June 30, 2020	76.3
Nanchong project in year 2017 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	3
Prepaid in 2020
Transfer to CIP in 2020
Effect of foreign currency exchange rate changes	(0.1)
Balance as of June 30, 2020	2.9
Nanchong project in year 2018 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	245.1
Prepaid in 2020
Transfer to CIP in 2020
Effect of foreign currency exchange rate changes	(3.5)
Balance as of June 30, 2020	241.6
Qinling Road Project in year 2019 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	18.6
Prepaid in 2020
Transfer to CIP in 2020
Effect of foreign currency exchange rate changes	(0.3)
Balance as of June 30, 2020	18.3
Jiangnan Road Project in year 2019 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	81.8
Prepaid in 2020
Transfer to CIP in 2020
Effect of foreign currency exchange rate changes	(1.2)
Balance as of June 30, 2020	80.6
Other in 2020 [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019
Prepaid in 2020	2.6
Transfer to CIP in 2020	(1.8)
Effect of foreign currency exchange rate changes
Balance as of June 30, 2020	0.8
Total Projects [Member]
Long-term Purchase Commitment [Line Items]
Balance as of December 31, 2019	468.5
Prepaid in 2020	2.6
Transfer to CIP in 2020	(8.3)
Effect of foreign currency exchange rate changes	(6.9)
Balance as of June 30, 2020	$ 455.9

Borrowings (Current) (Narrative

Borrowings (Current) (Narrative) (Details)	1 Months Ended	6 Months Ended
	Jan. 31, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2020CNY (¥)	Mar. 31, 2020USD ($)	Mar. 31, 2020CNY (¥)	Dec. 31, 2019USD ($)	Nov. 30, 2019USD ($)	Nov. 30, 2019CNY (¥)	Jan. 31, 2019CNY (¥)
Debt Instrument [Line Items]
Restricted cash to secure loans		$ 164,738,656				$ 211,231,244
Weighted average interest rate		5.20%	5.20%			5.00%
China, Yuan Renminbi [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥			¥ 75,000,000
One One-Year Secured Loans [Member]
Debt Instrument [Line Items]
Aggregated principal amount	$ 35,300,000
Debt maturity date	Jul. 31, 2020
Pledged inventories amount		$ 39,600,000				$ 40,100,000
Loan and bills payable amount		20,100,000
One One-Year Secured Loans [Member] | China, Yuan Renminbi [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥									¥ 250,000,000
Loan and bills payable amount | ¥			142,000,000
Sichuan Tianfu Bank [Member]
Debt Instrument [Line Items]
Aggregated principal amount		68,900,000		$ 7,100,000
Loan by accounts receivables		120,400,000
Sichuan Tianfu Bank [Member] | China, Yuan Renminbi [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥			¥ 488,000,000		¥ 50,000,000
Short-term bank loans Two [Member]
Debt Instrument [Line Items]
Aggregated principal amount		14,100,000				14,300,000
Loan by accounts receivables		$ 1,400,000				1,400,000
Consortium of banks and financial institutions led by Standard Chartered Bank [Member]
Debt Instrument [Line Items]
Debt instrument, issuer		Industrial and Commercial Bank of China (Macau)
Aggregated principal amount		$ 135,000,000
Debt instrument, interest rate		10.29%	10.29%
Debt instrument description of variable rate basis		2.0% plus three-month LIBOR
Total lines of credit		$ 650,000,000
Restricted cash to secure loans		57,500,000
Legal fees		7,200,000
Unamortized balance		3,400,000
Repaid amount of loan		10,000,000
Short-term bank loans [Member]
Debt Instrument [Line Items]
Aggregated principal amount		56,500,000				64,500,000	$ 5,700,000
Loan by accounts receivables		$ 80,800,000				$ 92,200,000
Short-term bank loans [Member] | China, Yuan Renminbi [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥								¥ 40,000,000

Borrowings (Schedule of Short-T

Borrowings (Schedule of Short-Term Loans, Including Current Portion of Long-Term Bank Loans) (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans		$ 770,943,894	$ 680,174,859
Unsecured loans [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans	[1]	460,785,297	407,657,464
Loans secured by accounts receivable [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans		63,563,811	64,505,031
Guaranteed loan [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans	[2]	35,313,228
Loans secured by restricted cash [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans	[3]	14,125,291	14,334,451
Syndicated loan facility [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans	[4]	121,638,806	128,020,559
Loan secured by inventories [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans	[5]	5,650,117	5,733,781
Current portion of long-term bank loans [Member]
Short-term Debt [Line Items]
Total short-term loans, including current portion of long-term bank loans		$ 69,867,344	$ 59,923,573
[1]	In January 2019, Sichuan Xinda obtained a one-year short-term unsecured bank loan of RMB250.0 million (equivalent to US$35.3 million) from Nanchong Rural Commercial Bank. In January 2020, the loan maturity date was extended to July 2020. Pursuant to the loan contract, the ratio of liabilities to assets of Sichuan Xinda shall not exceed 55%. As of June 30, 2020, Sichuan Xinda's ratio of liabilities to assets was higher than 55%, which resulted in a breach of the loan covenant, and Nanchong Rural Commercial Bank has the right to declare the above loan be immediately due and payable.
[2]	In January 2019, Sichuan Xinda obtained a one-year short-term unsecured bank loan of RMB250.0 million (equivalent to US$35.3 million) from Nanchong Rural Commercial Bank. Pursuant to the extension agreement dated January 2020, the loan maturity date was extended to July 2020 with a third-party guarantee provided by Nanchong Shuntou Development Group Co., Ltd. ("Shuntou"). Pursuant to the loan contract, the ratio of liabilities to assets of Sichuan Xinda shall not exceed 55%. As of June 30, 2020, Sichuan Xinda's ratio of liabilities to assets was higher than 55%, which resulted in the breach of the loan covenant, and Nanchong Rural Commercial Bank has the right to declare the above loan be immediately due and payable. The loan was subsequently repaid in July 2020.
[3]	As of June 30, 2020 and December 31, 2019, the Company had US$14.1 million and US$14.3 million of short-term bank loans secured by restricted cash of US$1.4 million and US$1.4 million, respectively.
[4]	On October 2, 2019, Xinda Holding (HK) Company Limited ("Xinda Holding (HK)"), a wholly owned subsidiary of the Company, entered into a facility agreement for a one-year loan facility in an aggregate amount of US$135.0 million with a consortium of banks and financial institutions led by Industrial and Commercial Bank of China (Macau) Limited. The Company made the drawdown on December 18, 2019. The interest rate of the loan is 2.0% plus three-month LIBOR. The Company incurred agency fee and arrangement fee in the amount of US$7.2 million for the loan of which the unamortized balance was US$3.4 million as of June 30, 2020. Loan issuance costs are presented on the consolidated balance sheets as a direct deduction from the carrying amount of the loan and amortized to interest expense using the effective interest rate of 10.29% as of June 30, 2020. Xinda Holding (HK) prepaid US$10.0 million loan during the six months period ended June 30, 2020.
[5]	In November 2019, the Company obtained a one-year short-term loan of RMB40.0 million (equivalent to US$5.7 million) from Bank of Inner Mongolia. As of June 30, 2020, the Company pledged inventories in amount of approximately US$39.6 million for the above loan and bills payable in amount of RMB142.0 million (equivalent to US$20.1 million) issued by Bank of Inner Mongolia.

Borrowings (Schedule of Long-Te

Borrowings (Schedule of Long-Term Bank Loans Excluding Current Portion) (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total long-term bank loans, excluding current portion		$ 575,452,134	$ 322,456,413
Secured loans [Member]
Debt Instrument [Line Items]
Total long-term bank loans, excluding current portion	[1]	1,742,389	1,742,389
Unsecured loans [Member]
Debt Instrument [Line Items]
Total long-term bank loans, excluding current portion	[2]	643,577,089	380,637,597
Current Portion [Member]
Debt Instrument [Line Items]
Total long-term bank loans, excluding current portion		$ 69,867,344	$ 59,923,573
[1]	On December 26, 2018, the Company obtained a five-year secured loan of AED8.0 million (equivalent to US$2.2 million) from National Bank of Umm Al Qaiwain at an interest rate of three-month EBOR (0.72% as of June 30, 2020) plus 3.75%. The long-term loan was secured by an undated cheque of AED8.8 million (US$2.4 million) favouring the bank provided by Dubai Xinda. The cheque would not be cashed by the bank unless Dubai Xinda defaults. Principal will be repaid in ten half-yearly installments of AED0.8 million (equivalent to US$0.2 million) each. The Company repaid AED1.6 million (equivalent to US$0.5 million) during 2019. Affected by the COVID-19 pandemic, National Bank of Umm Al Qaiwain allowed the Company to apply for a six-month extension for the half-yearly installments of AED0.8 million (equivalent to US$0.2 million) due in June 2020. As of June 30, 2020, the extension application was still under approval process by the bank.
[2]	As of June 30, 2020 and December 31, 2019, the Company's long-term unsecured bank loans (excluding the current portion of long-term bank loans) bear a weighted average interest rate of 5.2% and 5.5% per annum, respectively. The Company's long-term unsecured bank loans (excluding the current portion of long-term bank loans) will mature serially from 2021 to 2027.

Borrowings (Schedule of Maturit

Borrowings (Schedule of Maturities on Long-term Bank Loans Including Current Portion) (Details)	Jun. 30, 2020USD ($)
Debt Disclosure [Abstract]
Six months ended December 31, 2020	$ 24,448,606
2021	83,774,812
2022	208,896,642
2023	160,051,385
2024	41,020,411
After 2024	127,127,622
Total	$ 645,319,478

Borrowings (Non-current) (Narra

Borrowings (Non-current) (Narrative) (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2020AED (د.إ)	Dec. 31, 2019USD ($)	Dec. 31, 2019AED (د.إ)	Dec. 31, 2018USD ($)	Dec. 31, 2018AED (د.إ)	Jun. 30, 2020CNY (¥)	Dec. 26, 2018USD ($)	Dec. 26, 2018AED (د.إ)
Debt Instrument [Line Items]
Due Loan amount	$ 10,600,000
Weighted average interest rate	5.20%		5.40%	5.40%			5.20%
Five Year Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member]
Debt Instrument [Line Items]
Aggregated principal amount								$ 2,200,000
Spread over variable rate	3.75%	3.75%
Security Deposit								$ 2,400,000
Five Year Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member] | Ten Half-Yearly Installments [Member]
Debt Instrument [Line Items]
Repayment of long-term debt			$ 500,000		$ 200,000
Six-month Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member] | Half-Yearly Installments [Member]
Debt Instrument [Line Items]
Repayment of long-term debt	$ 200,000
Long-term unsecured bank loans [Member]
Debt Instrument [Line Items]
Aggregated principal amount	$ 19,100,000
Debt instrument, interest rate	4.75%						4.75%
Due Loan amount	$ 10,600,000
Weighted average interest rate	5.20%		5.50%	5.50%			5.20%
China, Yuan Renminbi [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥							¥ 75,000,000
China, Yuan Renminbi [Member] | Long-term unsecured bank loans [Member]
Debt Instrument [Line Items]
Aggregated principal amount | ¥							135,000,000
Due Loan amount | ¥							¥ 75,000,000
United Arab Emirates, Dirhams [Member] | Five Year Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member]
Debt Instrument [Line Items]
Aggregated principal amount | د.إ									د.إ 8,000,000
Debt instrument, interest rate								0.72%	0.72%
Security Deposit | د.إ									د.إ 8,800,000
United Arab Emirates, Dirhams [Member] | Five Year Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member] | Ten Half-Yearly Installments [Member]
Debt Instrument [Line Items]
Repayment of long-term debt | د.إ				د.إ 1,600,000		د.إ 800,000
United Arab Emirates, Dirhams [Member] | Six-month Secured Loan [Member] | National Bank of Umm Al Qaiwain [Member] | Half-Yearly Installments [Member]
Debt Instrument [Line Items]
Repayment of long-term debt | د.إ		د.إ 800,000

Accrued expenses and other cu_3

Accrued expenses and other current liabilities (Schedule of Accrued expenses and other current liabilities) (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Payables for purchase of property, plant and equipment		$ 16,905,908	$ 12,445,494
Accrued freight expenses		21,193,634	17,665,998
Accrued interest expenses		15,351,917	15,650,965
Contract liabilities	[1]	2,195,421	17,922,160
Non income tax payables		4,282,890	6,056,024
Others	[2]	16,087,957	16,809,747
Total accrued expenses and other current liabilities		$ 76,017,727	$ 86,550,388
[1]	Contract liabilities mainly represent the advance received from customers in the PRC for the finished goods and raw materials purchases. The change in contract liabilities primarily represents the cash received, less amounts recognized as revenues during the period.
[2]	Others mainly represent accrued payroll and employee benefits, accrued audit and consulting fees, electricity fee and other accrued miscellaneous operating expenses.

Related Party Transactions (Sch

Related Party Transactions (Schedule of Significant Related Party Transactions) (Narrative) (Details)	Apr. 22, 2019
Macromolecule Composite Materials [Member]
Interest rate	97.50%

Related Party Transactions (S_2

Related Party Transactions (Schedule of Significant Related Party Transactions) (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Transactions with related parties			$ 1,953,391		$ 2,237,399
Sales to Macromolecule Composite Materials [Member]
Revenues transactions with related parties	[1]		308,800		308,800
Mr. Jie Han [Member]
Transactions with related parties			2,950,723		2,950,723
Senior Management Employee in HLJ Xinda Group [Member]
Transactions with related parties					284,008
Management Employee in HLJ Xinda Group and Sichuan Xinda [Member]
Transactions with related parties			(4,439,451)		(4,439,451)
Macromolecule Composite Materials [Member]
Transactions with related parties	[1]		64,155,128		64,155,128
Advances from Macromolecule Composite Materials [Member]
Transactions with related parties	[1]		(60,713,009)		(60,713,009)
Mr. Qingwei Ma [Member]
Transactions with related parties		1,138,498		1,138,498
Advances from Mr. Qingwei Ma [Member]
Transactions with related parties		$ (1,138,498)		$ (1,138,498)
[1]	On December 26, 2018, Shanghai Sales set up Heilongjiang Xinda Macromolecule Composite Materials Company Limited ("Macromolecule Composite Materials"). On April 22, 2019, Shanghai Sales transferred 97.5% equity interest in Macromolecule Composite Materials to Harbin Shengtong Engineering Plastics Co., Ltd. ("Harbin Shengtong"). Mr. Xigang Chen, who was the general manager of Sichuan Xinda, was the general manager and also the principal shareholder of Harbin Shengtong.

Related Party Transactions (S_3

Related Party Transactions (Schedule of Related Parties Balances) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Amounts due to a related party	$ 25,876,162	$ 26,251,919
Mr. Jie Han [Member]
Related Party Transaction [Line Items]
Amounts due to a related party	12,317,254	12,499,642
Mr. Jie Han's wife [Member]
Related Party Transaction [Line Items]
Amounts due to a related party	3,099,054	3,137,539
Mr. Jie Han's son [Member]
Related Party Transaction [Line Items]
Amounts due to a related party	9,181,439	9,317,393
Mr. Qingwei Ma [Member]
Related Party Transaction [Line Items]
Amounts due to a related party	1,130,023	1,146,756
Senior Managements [Member]
Related Party Transaction [Line Items]
Amounts due to a related party	$ 148,392	$ 150,589

Income tax (Narrative) (Details

Income tax (Narrative) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2015
Income Tax [Line Items]
PRC statutory income tax rate	25.00%
Effective income tax rate	18.00%	11.00%
Change in Effective income tax rate	18.00%	11.00%
Unrecognized tax benefits	$ 30,733,101		$ 7,082,459
Unrecognized tax benefits accrued	6,164,268
Accrued interest reserved	5,021,444
Interest relating to unrecognized tax benefits	$ 10,998,020		$ 4,794,317
Percentage of additional deduction of major PRC operating entities	75.00%
Subsidiary One [Member]
Income Tax [Line Items]
PRC statutory income tax rate	15.00%

Deferred income (Details)

Deferred income (Details)	1 Months Ended			6 Months Ended
	Jun. 30, 2020USD ($)T	Jan. 31, 2015USD ($)	Jan. 31, 2015CNY (¥)	Jun. 30, 2020USD ($)	Jun. 30, 2020CNY (¥)	Jun. 30, 2020CNY (¥)
Fund Support Agreement With Shunqing Government [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, agreement amount | $		$ 49,400,000		$ 2,300,000
Government grant related to construction in the form of repayment of bank loan on behalf of the Company by the government | $				5,100,000
Government grant, funds received till date | $	$ 47,100,000			47,100,000
Additional government grant received | $				19,300,000
Additional government grant received recognized as other income | $				3,000,000
Fund Support Agreement With Shunqing Government [Member] | China, Yuan Renminbi [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, agreement amount | ¥			¥ 350,000,000		¥ 16,400,000
Government grant related to construction in the form of repayment of bank loan on behalf of the Company by the government | ¥					36,000,000
Government grant, funds received till date | ¥						¥ 333,200,000
Additional government grant received | ¥					136,700,000
Additional government grant received recognized as other income | ¥					¥ 21,200,000
Ministry of Finance of the People's Republic of China [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | $	900,000			900,000
Ministry of Finance of the People's Republic of China [Member] | China, Yuan Renminbi [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | ¥						6,400,000
Ministry of Science and Technology [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | $	1,000,000			1,000,000
Ministry of Science and Technology [Member] | China, Yuan Renminbi [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | ¥						7,500,000
Harbin Bureau of Finance for Biomedical [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | $	$ 6,400,000			$ 6,400,000
Bio-composite material | T	300,000
Harbin Bureau of Finance for Biomedical [Member] | China, Yuan Renminbi [Member]
Deferred Revenue Arrangement [Line Items]
Government grant, funds received till date | ¥						¥ 45,000,000

Other non-current liabilities_2

Other non-current liabilities (Narrative) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2017
Other Liabilities, Noncurrent [Abstract]
Current income tax expense-US	$ 22,708,848	$ 70,965,148

Other non-current liabilities_3

Other non-current liabilities (Details) - USD ($)		Jun. 30, 2020	Dec. 31, 2019
Other Liabilities, Noncurrent [Abstract]
Income tax payable-noncurrent	[1]	$ 78,110,645	$ 86,414,852
Deferred income tax liabilities		3,735,381	4,613,524
Total other non-current liabilities		$ 81,846,026	$ 91,028,376
[1]	Income tax payable-noncurrent represents the repatriation tax, the accumulative balance of unrecognized tax benefits since 2016 and related accrued interest. According to the Tax Cuts and Jobs Act enacted on December 22, 2017, the management recognized the amount of U.S. tax corporate income tax is US$70,965,148 based on the deemed repatriation to the United States of accumulated earnings mandated by the U.S. tax reform, US$22,708,848 of which due payable within one year was classified as current liabilities.

Noncontrolling interests (Detai

Noncontrolling interests (Details) ¥ in Millions	Jan. 21, 2025CNY (¥)	Jan. 21, 2024	Jun. 30, 2020USD ($)	Apr. 30, 2020USD ($)	Apr. 30, 2020CNY (¥)	Jan. 22, 2020USD ($)	Jan. 22, 2020CNY (¥)	Dec. 31, 2019USD ($)
Noncontrolling Interest [Line Items]
Amount of equity interest acquired			$ 45,907,197
Present value of redemption value			$ 45,900,000
Subsequent Event [Member]
Noncontrolling Interest [Line Items]
Percentage of equity interest acquired redeem	50.00%	50.00%
Amount of equity interest acquired redeem | ¥	¥ 325
Interest rate	1.50%
Subsidiaries One [Member]
Noncontrolling Interest [Line Items]
Percentage of pledged equity interest			63.79%
Subsidiaries One [Member] | Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Percentage of pledged equity interest			38.08%
Subsidiaries Two [Member]
Noncontrolling Interest [Line Items]
Percentage of pledged equity interest			61.92%
Subsidiaries Two [Member] | Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Percentage of pledged equity interest			34.38%
Subsidiaries One [Member]
Noncontrolling Interest [Line Items]
Percentage of equity interest acquired				65.62%	65.62%
Subsidiaries One [Member] | HLJ Xinda Group [Member]
Noncontrolling Interest [Line Items]
Amount of equity interest acquired				$ 4,600,000
Subsidiaries One [Member] | China, Yuan Renminbi [Member] | HLJ Xinda Group [Member]
Noncontrolling Interest [Line Items]
Amount of equity interest acquired | ¥					¥ 32.5
Third party investor [Member] | PRC subsidiaries One [Member]
Noncontrolling Interest [Line Items]
Percentage of equity interest acquired						36.21%	36.21%
Third party investor [Member] | PRC subsidiaries Two [Member]
Noncontrolling Interest [Line Items]
Percentage of equity interest acquired						38.08%	38.08%
Third party investor [Member] | PRC subsidiaries [Member]
Noncontrolling Interest [Line Items]
Amount of equity interest acquired						$ 45,900,000
Third party investor [Member] | PRC subsidiaries [Member] | China, Yuan Renminbi [Member]
Noncontrolling Interest [Line Items]
Amount of equity interest acquired | ¥							¥ 325

Stockholders' equity (Details)

Stockholders' equity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stockholders Equity [Line Items]
Balance as of January 1, 2020			$ 836,374,111
Net income	$ 17,575,811	$ 40,111,317	6,537,317	$ 51,092,032
Other comprehensive loss			(12,177,250)
Contribution from noncontrolling interests			45,907,197
Balance as of June 30, 2020	830,734,178		830,734,178
Preferred Stock [Member] | Series B Preferred Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			$ 100
Balance as of January 1, 2020, shares			1,000,000
Net income
Other comprehensive loss
Contribution from noncontrolling interests
Balance as of June 30, 2020	$ 100		$ 100
Balance as of June 30, 2020, shares	1,000,000		1,000,000
Common Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			$ 6,697
Balance as of January 1, 2020, shares			66,948,841
Net income
Other comprehensive loss
Contribution from noncontrolling interests
Balance as of June 30, 2020	$ 6,697		$ 6,697
Balance as of June 30, 2020, shares	66,948,841		66,948,841
Treasury Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			$ (92,694)
Net income
Other comprehensive loss
Contribution from noncontrolling interests
Balance as of June 30, 2020	$ (92,694)		(92,694)
Additional Paid-in Capital [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			184,208,447
Net income
Other comprehensive loss
Contribution from noncontrolling interests
Balance as of June 30, 2020	184,208,447		184,208,447
Retained Earnings [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			720,159,368
Net income			6,537,317
Other comprehensive loss
Contribution from noncontrolling interests
Balance as of June 30, 2020	726,696,685		726,696,685
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020			(67,907,807)
Net income
Other comprehensive loss			(12,177,250)
Balance as of June 30, 2020	(80,085,057)		(80,085,057)
Non-controlling Interests [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2020
Net income
Contribution from noncontrolling interests			45,907,197
Balance as of June 30, 2020	$ 45,907,197		$ 45,907,197

Stock based compensation (Narra

Stock based compensation (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 20, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jan. 10, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost
Nonvested Shares [Member] | General and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense
Mr. Jie Han and an employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested shares granted	3,000,000
Two nonemployee consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested shares granted	1,000,000
Stock Issuance Plan 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance						13,000,000

Stock based compensation (Summa

Stock based compensation (Summary of Nonvested Shares Activity) (Details) - Nonvested Shares [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Number of Nonvested Shares
Outstanding as of December 31, 2019 | shares
Granted | shares	4,000,000
Forfeited | shares	(4,000,000)
Outstanding as of June 30, 2020 | shares
Weighted Average Grant date Fair Value
Outstanding as of December 31, 2019 | $ / shares
Granted | $ / shares	1.5
Forfeited | $ / shares	1.5
Outstanding as of June 30, 2020 | $ / shares

Earnings per share (Calculation

Earnings per share (Calculation of Basic and Diluted Earnings Per Share) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income attributable to China XD Plastics Company Limited	$ 17,575,811	$ 40,111,317	$ 6,537,317	$ 51,092,032
Less: Earnings allocated to participating Series D convertible preferred stocks		(9,586,142)		(12,210,406)
Net income for basic and diluted earnings per share	$ 17,575,811	$ 30,525,175	$ 6,537,317	$ 38,881,626
Denominator:
Denominator for basic and diluted earnings per share	66,948,841	50,948,841	66,948,841	50,948,841
Earnings (loss) per share:
Basic and diluted	$ 0.26	$ 0.60	$ 0.1	$ 0.76

Earnings per share (Summary of

Earnings per share (Summary of Potentially Dilutive Securities) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Convertible Preferred Stock Series D [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable upon conversion of stock		16,000,000		16,000,000

Commitments and contingencies (

Commitments and contingencies (Narrative) (Details)

Dec. 03, 2019CNY (¥)

Jul. 12, 2018USD ($)T

Jul. 12, 2018CNY (¥)T

Jun. 10, 2017USD ($)

Jun. 10, 2017CNY (¥)

Jun. 09, 2017USD ($)

Jun. 09, 2017CNY (¥)

Sep. 06, 2016USD ($)

Sep. 06, 2016CNY (¥)

May 31, 2019USD ($)

Nov. 30, 2018USD ($)

Nov. 30, 2018CNY (¥)

Jul. 31, 2018T

Jun. 25, 2018USD ($)T

Jun. 25, 2018CNY (¥)T

Jul. 21, 2017T

Mar. 31, 2017USD ($)

Mar. 31, 2017CNY (¥)

Mar. 30, 2017USD ($)

Mar. 30, 2017CNY (¥)

Mar. 17, 2017T

Nov. 15, 2016USD ($)

Nov. 15, 2016CNY (¥)

Oct. 20, 2016USD ($)

Oct. 20, 2016CNY (¥)

Mar. 31, 2013CNY (¥)

Apr. 15, 2019CNY (¥)

Jun. 30, 2020USD ($)T

Jun. 30, 2020CNY (¥)T

Dec. 25, 2018CNY (¥)

Dec. 31, 2017USD ($)

Dec. 31, 2017CNY (¥)

Jun. 30, 2020CNY (¥)

Dec. 31, 2019USD ($)

Dec. 03, 2019USD ($)

Dec. 03, 2019CNY (¥)

Apr. 15, 2019USD ($)

Apr. 15, 2019CNY (¥)

Dec. 25, 2018USD ($)

Dec. 25, 2018CNY (¥)

Jun. 21, 2018USD ($)

Jun. 21, 2018CNY (¥)

Dec. 31, 2017CNY (¥)

Nov. 15, 2016CNY (¥)

Sep. 06, 2016CNY (¥)

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

$ 502,049,222

$ 495,570,421

China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Loan amount | ¥

¥ 75,000,000

Xinda Holdings HK [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation

5,500,000

Xinda Holdings HK [Member] | Longjiang Bank, Harbin Branch [Member]

Long-term Purchase Commitment [Line Items]

Loan amount

$ 113,000,000

Xinda Holdings HK [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation | ¥

38,500,000

Xinda Holdings HK [Member] | China, Yuan Renminbi [Member] | Longjiang Bank, Harbin Branch [Member]

Long-term Purchase Commitment [Line Items]

Loan amount | ¥

¥ 800,000,000

Interest rate

6.09%

Obliged repay | ¥

¥ 800,000,000

Xinda Holdings HK [Member] | Property, Plant and Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 1,800,000,000

Xinda Holdings HK [Member] | Working Capital [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 600,000,000

Sichuan Xinda [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

20,000,000

Sichuan Xinda [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers | ¥

141,500,000

Sichuan Xinda [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 2,400,000

300,000

Purchase Obligation

$ 200,000

Prepayments to equipment suppliers

$ 17,300,000

1,300,000

$ 241,600,000

Bio-composite material | T

300,000

Sichuan Xinda [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 17,000,000

¥ 1,900,000

Purchase Obligation | ¥

¥ 1,600,000

Prepayments to equipment suppliers | ¥

9,400,000

¥ 1,710,000,000

¥ 122,800,000

Peaceful [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[1]

21,776,143

19,967,014

Peaceful [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 12,700,000

7,900,000

Prepayments to equipment suppliers

$ 18,800,000

17,000,000

Peaceful [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 89,800,000

55,900,000

Prepayments to equipment suppliers | ¥

33,900,000

Peaceful [Member] | Warehouse Construction Contract [Member] | United Arab Emirates, Dirhams

Long-term Purchase Commitment [Line Items]

Total consideration

$ 18,800,000

Purchase Obligation

1,800,000

Beijin Construction [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[2]

6,863,810

6,795,439

Beijin Construction [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 3,300,000

$ 34,000,000

Beijin Construction [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 23,800,000

¥ 240,500,000

Hailezi [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to equipment suppliers

[3]

455,858,879

$ 468,529,714

Prepayments to be refunded from termination of contracts

$ 500,000

$ 1,800,000

Hailezi [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Prepayments to be refunded from termination of contracts | ¥

¥ 3,200,000

¥ 12,400,000

Hailezi [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 316,800,000

Prepayments to equipment suppliers

800,000

$ 87,800,000

Partially terminated with the uncancelled contract amount

$ 2,500,000

Hailezi [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 2,242,800,000

Prepayments to equipment suppliers | ¥

¥ 621,600,000

Partially terminated with the uncancelled contract amount | ¥

¥ 18,000,000

Hailezi [Member] | Warehouse Construction Contract [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation

10,600,000

Hailezi [Member] | Warehouse Construction Contract [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation | ¥

75,200,000

Nanchong Project [Member] | Property, Plant and Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

20,000

Nanchong Project [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

268,400,000

Purchase Obligation

$ 26,800,000

Nanchong Project [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 1,900,000,000

Purchase Obligation | ¥

190,000,000

HLJ Xinda Group [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

300,000

300,000

HLJ Xinda Group [Member] | Longjiang Bank, Harbin Branch [Member]

Long-term Purchase Commitment [Line Items]

Loan amount

$ 86,500,000

$ 70,600,000

HLJ Xinda Group [Member] | China, Yuan Renminbi [Member] | Longjiang Bank, Harbin Branch [Member]

Long-term Purchase Commitment [Line Items]

Loan amount | ¥

¥ 612,200,000

¥ 500,000,000

Interest rate

6.25%

6.09%

Obliged repay | ¥

¥ 612,200,000

¥ 500,000,000

HLJ Xinda Group [Member] | Property, Plant and Equipment [Member]

Long-term Purchase Commitment [Line Items]

Bio-composite material | T

100,000

HLJ Xinda Group [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 269,300,000

Prepayments to equipment suppliers

$ 130,100,000

Bio-composite material | T

300,000

300,000

300,000

300,000

HLJ Xinda Group [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 1,906,800,000

Prepayments to equipment suppliers | ¥

920,900,000

HLJ Project [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 269,300,000

Purchase Obligation

193,100,000

Bio-composite material | T

300,000

300,000

HLJ Project [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 1,906,800,000

Purchase Obligation | ¥

1,366,800,000

Qinling Road Project [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation

4,600,000

Qinling Road Project [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation | ¥

32,400,000

Jiangnan Road Project [Member] | Equipment [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation

20,200,000

Jiangnan Road Project [Member] | Equipment [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation | ¥

142,700,000

Beijing Fangyuan Decoration Engineering Co [Member] | Workshops and buildings [Member]

Long-term Purchase Commitment [Line Items]

Total consideration

$ 200,000

$ 800,000

Purchase Obligation

500,000

Beijing Fangyuan Decoration Engineering Co [Member] | Workshops and buildings [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Total consideration | ¥

¥ 1,200,000

¥ 5,800,000

Purchase Obligation | ¥

3,800,000

Beijing Zhonghongwufang Stone Co [Member] | Workshops and buildings [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation

$ 100,000

Beijing Zhonghongwufang Stone Co [Member] | Workshops and buildings [Member] | China, Yuan Renminbi [Member]

Long-term Purchase Commitment [Line Items]

Purchase Obligation | ¥

¥ 600,000

[1]

On October 20, 2016, Sichuan Xinda entered into an equipment purchase agreement purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of RMB89.8 million (equivalent to US$12.7 million) to purchase certain production and testing equipment. The Company prepaid RMB33.9 million (equivalent to US$4.8 million) as of June 30, 2020.

[2]

Since November 15, 2016, Sichuan Xinda entered into decoration contracts with Sichuan Beijin Construction Engineering Company Limited ("Beijin Construction") to perform indoor and outdoor decoration work for a consideration of RMB264.3 million (equivalent to US$37.3 million). Pursuant to the contracts with Beijin Construction, Sichuan Xinda has prepaid RMB122.8 million (equivalent to US$17.3 million) as of June 30, 2020, of which RMB74.0 million (equivalent to US$10.4 million) was transferred to construction in progress.

[3]

On September 26, 2016 and February 28, 2017, HLJ Xinda Group entered into equipment purchase contracts with Hailezi for a total consideration of RMB782.2 million (equivalent to US$110.5 million) to purchase storage facility and other equipment, which will be used for upgrading the storage system of warehouse located in Harbin, China. Pursuant to the contracts with Hailezi, HLJ Xinda Group prepaid RMB621.6 million (equivalent to US$87.8 million) during the first quarter of 2017. Due to a redesign of outdoor storage facility in June 2017, HLJ Xinda Group entered into a supplementary agreement with Hailezi, which decreased the original contract amount to RMB283.7 million (equivalent to US$40.1 million). Hailezi refunded RMB369.1 million (equivalent to US$52.1 million) to HLJ Xinda Group on June 22, 2017. On September 25, 2019, HLJ Xinda Group entered into a supplementary agreement with Hailezi, pursuant to which the total contract amount was increased to RMB332.5 million (equivalent to US$47.0 million). As of June 30, 2020, HLJ Xinda Group has prepaid RMB255.0 million (equivalent to US$36.0 million) for the above contracts, of which RMB4.4 million (equivalent to US$0.6 million) was transferred to construction in progress.

Revenues (Details)

Revenues (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Sales Revenue By Product [Line Items]
Total Revenue	$ 283,223,987	$ 463,073,880	$ 428,061,665	$ 764,539,887
Modified Polyamide 66 PA66 [Member]
Sales Revenue By Product [Line Items]
Total Revenue	147,968,469	92,259,170	197,201,570	176,137,415
Modified Polyamide 6 PA6 [Member]
Sales Revenue By Product [Line Items]
Total Revenue	96,196,177	105,421,049	116,495,139	171,589,143
Plastic Alloy [Member]
Sales Revenue By Product [Line Items]
Total Revenue	7,597,061	71,411,826	18,144,460	134,548,451
Modified Polypropylene PP [Member]
Sales Revenue By Product [Line Items]
Total Revenue	21,929,333	40,795,250	26,270,108	77,852,304
Modified Acrylonitrile Butadiene Styrene ABS [Member]
Sales Revenue By Product [Line Items]
Total Revenue	6,384,587	14,777,635	7,377,815	28,225,264
Polyoxymethylenes POM [Member]
Sales Revenue By Product [Line Items]
Total Revenue	374,407	2,302,901	876,354	4,899,362
Polyphenylene Oxide PPO [Member]
Sales Revenue By Product [Line Items]
Total Revenue		9,133,246		25,992,396
Polylactide PLA [Member]
Sales Revenue By Product [Line Items]
Total Revenue	155,882	12,751,971	358,037	29,263,327
Polyethylene (PE) [Member]
Sales Revenue By Product [Line Items]
Total Revenue	851,805	1,831,333	1,437,050	3,604,077
Semi-finished goods [Member]
Sales Revenue By Product [Line Items]
Total Revenue		112,300,015	58,182,353	112,300,015
Distributors [Member]
Sales Revenue By Product [Line Items]
Total Revenue	276,792,623	322,799,104	384,318,727	605,615,795
Direct customers [Member]
Sales Revenue By Product [Line Items]
Total Revenue	4,665,098	140,185,292	42,024,159	158,729,179
Others [Member]
Sales Revenue By Product [Line Items]
Total Revenue	$ 1,766,266	$ 89,484	$ 1,718,779	$ 128,133

Gains on disposal of a subsid_2

Gains on disposal of a subsidiary (Narrative) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on disposal of subsidiary					$ 518,491
Shanghai New Materials R&D [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains on disposal of subsidiary			$ 500,000

Leases (Narrative) (Details)

Leases (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Operating lease term for land and office	expiring from 2022 through 2085
Weighted average remaining lease term	16 years 9 months 18 days
Weighted average discount rate	6.70%

Leases (Schedule of Lease Costs

Leases (Schedule of Lease Costs) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 572,691	$ 423,657	$ 1,147,788	$ 847,228
Short-term lease cost	237,421	154,019	368,495	333,214
Total lease costs	$ 810,112	$ 577,676	$ 1,516,283	$ 1,180,442

Leases (Schedule of Future Mini

Leases (Schedule of Future Minimum Lease Commitments) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Operating Leases
2020	$ 693,360
2021	1,407,825
2022	1,408,184
2023	1,424,003
2024	1,443,311
Thereafter	20,567,357
Total remaining lease payments	26,944,040
Less: Imputed interest	(11,280,932)
Total operating lease liabilities	15,663,108
Less: current portion	(1,413,018)	$ (1,388,555)
Non-current operating lease liabilities	$ 14,250,090	$ 14,429,434
Weighted-average remaining lease term	16 years 9 months 18 days
Weighted-average discount rate	6.70%

Leases (Schedule of Supplementa

Leases (Schedule of Supplemental Disclosure of Cash Flow Information) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 301,873	$ 1,550,512	$ 666,063	$ 1,679,029

Subsequent events (Details)

Subsequent events (Details)	1 Months Ended
	Jul. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2020CNY (¥)
Subsequent Event [Line Items]
Long-term debt		$ 645,319,478
Long-term bank loans [Member]
Subsequent Event [Line Items]
Long-term debt current		$ 35,300,000
Long-term bank loans [Member] | China, Yuan Renminbi [Member]
Subsequent Event [Line Items]
Long-term debt current | ¥			¥ 250,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Asset pledged under collateral	$ 141,700,000