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Other Receivables (Details) - USD ($) | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 23, 2021 | Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Receivables [Abstract] |  |  |  |
Advance to third party |  | $ 7,710 | $ 7,663 | $ 7,167
Advance to employees |  | 9,102 | 11,011 |
Advance to suppliers |  | 2,773 | 4,791 |
Other receivables |  | 862,250 | 12,222 | 22,449
Social insurance receivable |  | 4,607 | 4,579 |
Insurance receivable and prepayment |  | 857,500 |  |
Total contracted research and development cost |  | 1,000,000 |  |
Prepaid expense |  | $ 200,000 |  |
Project development service agreement, description | 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. |  |  |
Social insurance |  |  | $ 4,579 |
Tax and maintenance cost receivable |  |  |  | $ 1,001,527

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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447 + Details
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