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Accrued Expenses and Other Payables (Tables)
3 Months Ended
Mar. 31, 2021
Payables and Accruals [Abstract]  
Schedule of accrued expenses and other payables
   December 31,   March 31, 
   2020   2021 
Construction costs payable  $273,279   $

1,086,410

 
Equipment purchase payable   5,431,132    3,120,765 
Liquidated damages (note a)   1,210,119    1,210,119 
Accrued staff costs   2,083,660    1,534,997 
Customer deposits   394,536    289,473 
Other payables and accruals   2,252,733    2,012,220 
   $11,645,459   $

9,253,984

 
  (a) On August 15, 2006, the SEC declared effective a post-effective amendment that the Company had filed on August 4, 2006, terminating the effectiveness of a resale registration statement on Form SB-2 that had been filed pursuant to a registration rights agreement with certain shareholders to register the resale of shares held by those shareholders. The Company subsequently filed Form S-1 for these shareholders. On December 8, 2006, the Company filed its Annual Report on Form 10-K for the year ended September 30, 2006 (the “2006 Form 10-K”). After the filing of the 2006 Form 10-K, the Company’s previously filed registration statement on Form S-1 was no longer available for resale by the selling shareholders whose shares were included in such Form S-1. Under the registration rights agreement, those selling shareholders became eligible for liquidated damages from the Company relating to the above two events totaling approximately $1,051,000. As of December 31, 2019 and March 31, 2020, no liquidated damages relating to both events have been paid.