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v3.21.1

Related Party Transactions (Details) |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |
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Aug. 06, 2018 | Dec. 10, 2014 USD ($) | Aug. 07, 2013 USD ($) | Aug. 07, 2013 CNY (¥) | Jan. 01, 2013 | Nov. 23, 2018 USD ($) | Feb. 28, 2018 USD ($) | Aug. 06, 2016 | Dec. 31, 2015 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2016 USD ($) | Oct. 14, 2016 USD ($) | Jul. 13, 2015 USD ($) | Mar. 01, 2015 USD ($) | Mar. 01, 2015 CNY (¥)
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan paid off |  |  |  |  |  |  | $ 20,400 |  | $ 2,249,279 |  | $ 94,636 |  |  |  |  |
Amount due to shareholder |  |  |  |  |  |  |  |  | $ 391,374 | $ 727,433 | 483,433 |  |  |  |  |
Outstanding loan balance |  |  |  |  |  |  |  |  |  | 3,494,307 | 3,411,600 |  |  |  |  |
Repayment of related party loans |  |  |  |  |  |  |  |  |  |  | 2,175,553 |  |  |  |  |
Loan Due Date |  |  |  |  |  |  | Jul. 12, 2021 |  |  |  |  |  |  |  |  |
Loan from related parties, interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued interest |  |  |  |  |  |  |  |  |  | 429,279 |  |  |  |  |  |
Mr. Zhenyong Liu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans payable to related party |  |  |  |  |  |  |  |  |  |  |  | $ 6,012,416 |  |  |  |
Interest paid |  |  |  |  |  |  |  |  |  |  |  | $ 288,596 |  |  |  |
Outstanding loan balance |  |  |  |  |  |  |  |  |  | 45,978 | 43,003 |  |  |  |  |
Loan from related parties, interest expense |  |  |  |  |  |  |  |  |  |  | 94,636 |  |  |  |  |
Term of loan |  |  | 3 years | 3 years |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans payable to related party |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,883,091 | $ 4,324,636 | $ 17,201,342 |
Outstanding loan balance |  |  |  |  |  |  |  |  |  | 210,635 | 197,009 |  |  |  |  |
Industrial building lease term | four |  |  |  |  |  |  | four |  |  |  |  |  |  |  |
Chief Executive Officer [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans payable to related party | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 120,000,000
Chief Executive Officer [Member] | Mr. Zhenyong Liu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued interest |  |  |  |  |  |  |  |  |  | 649,468 | 607,453 |  |  |  |  |
Dongfang Paper [Member] | Mr. Zhenyong Liu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan paid off |  |  |  |  |  | $ 158,651 |  |  |  |  |  |  |  |  |  |
Other payables and accrued liabilities |  |  |  |  |  |  |  |  |  | $ 392,855 | $ 367,441 |  |  |  |  |
Loans payable to related party |  | $ 8,742,278 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on loans |  | 4.35% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of related party loans |  |  |  |  |  | $ 3,768,579 | $ 1,507,432 |  |  |  |  |  |  |  |  |
Dongfang Paper [Member] | Mr. Zhenyong Liu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable term, description |  |  |  |  | On January 1, 2013, Dongfang Paper and Mr. Zhenyong Liu renewed the three-year term loan previously entered on January 1, 2010, and extended the maturity date further to December 31, 2015. |  |  |  |  |  |  |  |  |  |  |
Hebei Fangsheng [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental payment |  |  | $ 145,052 | ¥ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Hebei Fangsheng [Member] | One employee dormitory buildings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of dormitory buildings |  |  | 2,770,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Hebei Fangsheng [Member] | Two employee dormitory buildings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of dormitory buildings |  |  | 1,150,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Hebei Fangsheng [Member] | Three employees dormitory buildings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale price of dormitory buildings |  |  | $ 4,310,000 |  |  |  |  |  |  |  |  |  |  |  |  |

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