Other Receivables	9 Months Ended	12 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Receivables [Abstract]
OTHER RECEIVABLES	3. OTHER RECEIVABLES As of September 30, 2021, other receivables mainly consisted of (i) advances to third parties of $7,710, bearing no interest, payable upon demand, ii) advance to employees of $9,102, iii) advance to suppliers of $2,773 and (iv) others of $862,250 including social insurance receivable of $4,607 and prepayment of $857,500 (see below). On August 2, 2021, the Company entered a Research and Development Cooperation Agreement with a software development company to design, establish, upgrade and maintenance of Smart Energy Management Cloud Platform for energy storage and remote-site monitoring; upon completion, the Company will provide such platform to its customers at a fee. Total contracted research and development cost is $1,000,000, the Company prepaid $200,000 as of September 30, 2021. On August 23, 2021, the Company entered a Market Research and Project Development Service Agreement with a consulting company in Xi’an for a service period of 12 months. The consulting company will perform the market research for new energy industry including photovoltaic and energy storage, develop potential new customers and due diligence check, assisting the Company for business cooperation negotiation and relevant agreements preparation. Total contract amount is $1,150,000, and the Company prepaid $650,000 at commencement of the service; the Company will pay $200,000 upon issuance of the research report, and pay the remaining of $300,000 upon completion all the services. As of December 31, 2020, other receivables mainly consisted of (i) advances to third parties of $7,663, bearing no interest, payable upon demand, ii) advance to employees of $11,011, iii) advance to suppliers of $4,791 and (iv) others of $12,222 including social insurance receivable of $4,579.	4. OTHER RECEIVABLES As of December 31, 2020, other receivables mainly consisted of (i) advances to third parties of $7,663, bearing no interest, payable upon demand, ii) advance to employees of $11,011, iii) advance to suppliers of $4,791 and (iv) others of $12,222 including social insurance receivable of $4,579. As of December 31, 2019, other receivables mainly consisted of (i) advances to third parties of $7,167, bearing no interest, payable upon demand, (ii) tax and maintenance cost receivable of $1,001,527 for Xi’an TCH, and iii) others of $22,449.

Other Receivables

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

3. OTHER RECEIVABLES

As of September 30, 2021, other receivables mainly consisted of (i) advances to third parties of $7,710, bearing no interest, payable upon demand, ii) advance to employees of $9,102, iii) advance to suppliers of $2,773 and (iv) others of $862,250 including social insurance receivable of $4,607 and prepayment of $857,500 (see below).

On August 2, 2021, the Company entered a Research and Development Cooperation Agreement with a software development company to design, establish, upgrade and maintenance of Smart Energy Management Cloud Platform for energy storage and remote-site monitoring; upon completion, the Company will provide such platform to its customers at a fee. Total contracted research and development cost is $1,000,000, the Company prepaid $200,000 as of September 30, 2021.

On August 23, 2021, the Company entered a Market Research and Project Development Service Agreement with a consulting company in Xi’an for a service period of 12 months. The consulting company will perform the market research for new energy industry including photovoltaic and energy storage, develop potential new customers and due diligence check, assisting the Company for business cooperation negotiation and relevant agreements preparation. Total contract amount is $1,150,000, and the Company prepaid $650,000 at commencement of the service; the Company will pay $200,000 upon issuance of the research report, and pay the remaining of $300,000 upon completion all the services.

4. OTHER RECEIVABLES

As of December 31, 2020, other receivables mainly consisted of (i) advances to third parties of $7,663, bearing no interest, payable upon demand, ii) advance to employees of $11,011, iii) advance to suppliers of $4,791 and (iv) others of $12,222 including social insurance receivable of $4,579. As of December 31, 2019, other receivables mainly consisted of (i) advances to third parties of $7,167, bearing no interest, payable upon demand, (ii) tax and maintenance cost receivable of $1,001,527 for Xi’an TCH, and iii) others of $22,449.