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Loans Payable (Details Textual) - USD ($) |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 06, 2018 | Jan. 03, 2018 | Jan. 10, 2017 | Apr. 16, 2014 | Jul. 15, 2013 | Oct. 18, 2017 | Apr. 20, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jan. 02, 2018 | Dec. 31, 2017 | Aug. 31, 2015
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid balance of short term debt |  |  |  |  |  |  |  |  | $ 12,393,072 |  | $ 12,393,072 |  |  | $ 7,192,923 |
Unsecured bank loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, Interest rate per month |  |  |  |  |  |  |  |  | 0.60% |  | 0.60% |  |  |  |
Loan extension period |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |
Installment repayment description |  |  |  |  |  |  |  | The Rural Credit Union of Xushui County for a term of 2 years, which is due and payable in various installments from August 26, 2017 to April 19, 2019. |  |  |  |  |  |  |
Total outstanding loan balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current portion of total outstanding loan |  |  |  |  |  |  |  |  | $ 7,466,070 |  | $ 7,466,070 |  |  | 6,366,502 |
Interest expense for the short-term bank loans and long-term loans |  |  |  |  |  |  |  |  | $ 328,955 | $ 324,929 | $ 620,294 | $ 587,708 |  |  |
Average short-term borrowing rates |  |  |  |  |  |  |  |  | 5.59% | 5.25% | 5.58% | 5.27% |  |  |
Loans from credit union |  |  |  |  |  |  |  |  | $ 7,466,070 |  | $ 7,466,070 |  |  | 7,560,221 |
Value of land use right pledged for sale-leaseback financing |  |  |  |  |  |  |  |  | 15,001,701 |  | 15,001,701 |  |  |  |
Assets pledged for guarantee of Dongfang Paper capital lease |  |  |  |  |  |  |  |  | 6,927,618 |  | 6,927,618 |  |  | 7,963,285 |
Rural Credit Union of Xushui County [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total outstanding loan balance |  |  |  |  |  |  |  |  | 2,387,933 |  | 2,387,933 |  |  | 2,418,047 |
Current portion of total outstanding loan |  |  |  |  |  |  |  |  | 2,387,933 |  | 2,387,933 |  |  | 1,224,328 |
Loans from credit union |  |  |  |  |  |  |  |  | 7,466,070 |  | 7,466,070 |  |  | 7,560,221 |
Non-current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,193,719 |
Long-term loan [Member] | Rural Credit Union of Xushui County [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, Interest rate per month |  |  |  |  | 0.72% |  |  |  |  |  |  |  |  |  |
Loan extension period |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Installment repayment description |  |  |  |  | The Rural Credit Union of Xushui County for a term of 5 years, which is payable in various installments from June 21, 2014 to November 18, 2018. |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 188,919
Original repayment of loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,897
Total outstanding loan balance |  |  |  |  |  |  |  |  | $ 1,299,761 |  | $ 1,299,761 |  |  | 1,316,152 |
New term loan agreement [Member] | Rural Credit Union of Xushui County [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, Interest rate per month |  |  |  |  |  |  |  |  | 0.72% |  | 0.72% |  |  |  |
Loan extension period |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Installment repayment description |  |  |  |  |  | The Rural Credit Union of Xushui County for a term of 5 years, which is due and payable in various installments from December 21, 2013 to July 26, 2018. |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 196,476
Original repayment of loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 45,341
Total outstanding loan balance |  |  |  |  |  |  |  |  | $ 3,778,376 |  | $ 3,778,376 |  |  | 3,826,022 |
Security loan agreement by manufacturing equipment |  |  |  |  |  |  |  |  | 6,927,618 |  | 6,927,618 |  |  | 7,963,285 |
ICBC Loan 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid balance of short term debt | [1] |  |  |  |  |  |  |  |  |  |  |  |  | 4,285,145 |
Short-term bank loans, bore interest rate |  |  |  | 4.5675% |  |  |  |  |  |  |  |  |  |  |
Loan, maturity date |  |  |  | Jan. 08, 2018 |  |  |  |  |  |  |  |  |  |  |
ICBC Loan 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid balance of short term debt | [2] |  |  |  |  |  |  |  | 2,871,565 |  | 2,871,565 |  |  | 2,907,778 |
Short-term bank loans, bore interest rate |  |  |  |  |  |  | 4.945% |  |  |  |  |  |  |  |
Loan, maturity date |  |  |  |  |  |  | Oct. 12, 2018 |  |  |  |  |  |  |  |
ICBC Loan 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid balance of short term debt | [3] |  |  |  |  |  |  |  | 4,231,781 |  | 4,231,781 |  |  |  |
Short-term bank loans, bore interest rate |  | 5.40% |  |  |  |  |  |  |  |  |  |  |  |  |
Loan, maturity date |  | Feb. 09, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |
Bank of Cangzhou [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpaid balance of short term debt | [4] |  |  |  |  |  |  |  | $ 5,289,726 |  | $ 5,289,726 |  |  |  |
Short-term bank loans, bore interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 6.09% |  |
Loan, maturity date |  |  | Jan. 03, 2019 |  |  |  |  |  |  |  |  |  |  |  |
[1] | On January 10, 2017, the Company entered into a working capital loan agreement with the ICBC, with a balance of $4,285,145 as of December 31, 2017. The working capital loan was guaranteed by Hebei Tengsheng with its land use right pledged as collateral for the benefit of the bank. The loan bears a fixed interest rate of 4.5675% per annum. The loan was due and repaid on January 8, 2018.
[2] | On October 18, 2017, the Company entered into a working capital loan agreement with the ICBC, with a balance of $2,871,565 and $2,907,778 as of June 30, 2018 and December 31, 2017, respectively. The working capital loan is secured by the Company's land use right as collateral for the benefit of the bank. The loan bears a fixed interest rate of 4.945% per annum. The loan will be due on October 12, 2018.
[3] | On February 6, 2018, the Company entered into a working capital loan agreement with the ICBC, with a balance of $4,231,781 as of June 30, 2018. The working capital loan was guaranteed by Hebei Tengsheng with its land use right pledged as collateral for the benefit of the bank. The loan bears a fixed interest rate of 5.4% per annum. The loan will be due on February 9, 2019.
[4] | On January 2, 2018, the Company entered into a working capital loan agreement with the Bank of Cangzhou. The loan was withdrawn on January 4, 2018, with a balance of $5,289,726 as of June 30, 2018. The loan bears a fixed interest rate of 6.09% per annum. The working capital loan is secured by the Company's land use right and guaranteed by the Company's CEO and Baoding Shengde with its production equipment as collateral for the benefit of the bank. The loan will be due on January 3, 2019.

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