Annual report pursuant to Section 13 and 15(d)

Bank Loans (Details) - Schedule of short-term bank loans (Parentheticals)

v3.21.2
Bank Loans (Details) - Schedule of short-term bank loans (Parentheticals)
12 Months Ended
Dec. 31, 2020
Due on November 1, 2020 [Member] | Fujian Haixia Bank [Member]  
Short-term Debt [Line Items]  
Annual interest rate 6.09%
Debt instrument, maturity date Nov. 01, 2020
Short-term debt description Collateralized by Hong Long's 6 fishing vessels and 7 real estate properties
Debt ratio of borrower 100.00%
Due on November 6, 2020 [Member] | Fujian Haixia Bank [Member]  
Short-term Debt [Line Items]  
Annual interest rate 6.09%
Debt instrument, maturity date Nov. 06, 2020
Short-term debt description Collateralized by Hong Long's 6 fishing vessels and 7 real estate properties
Debt ratio of borrower 100.00%
Due on November 14, 2020 [Member] | Fujian Haixia Bank [Member]  
Short-term Debt [Line Items]  
Annual interest rate 6.09%
Debt instrument, maturity date Nov. 14, 2020
Short-term debt description Collateralized by Hong Long's 6 fishing vessels and 7 real estate properties
Debt ratio of borrower 100.00%
Due to October 29, 2021 [Member] | Fujian Haixia Bank [Member]  
Short-term Debt [Line Items]  
Annual interest rate 6.09%
Debt instrument, maturity date Oct. 29, 2021
Short-term debt description Collateralized by Hong Long's 5 fishing vessels, the Company's 1 fishing vessel and 7 real estate properties of Ping Lin and Ying Liu, the debt ratio of borrower should not be higher than or equal to 100%.
Due on January 21, 2021 [Member] | Export-Import Bank of China [Member]  
Short-term Debt [Line Items]  
Annual interest rate 3.88%
Debt instrument, maturity date Jan. 21, 2021
Short-term debt description Guaranteed by Pin Lin, Xinrong Zhuo and Hong Long, pledged deposits provided by Hong Long amounted to RMB 42 million, the Land Use Right of B2 plot in central business district on the north shore of Minjiang river.