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Accounting Policies, by Policy (Policies) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2021 | Dec. 31, 2020
Accounting Policies [Abstract] |  |
Basis of Presentation | Basis of Presentation The accompanying unaudited financial information as of and for the six and three months ended June 30, 2021 and 2020 has been prepared in accordance with accounting principles generally accepted in the U.S. for interim financial information and with the instructions to Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, such financial information includes all adjustments (consisting only of normal recurring adjustments, unless otherwise indicated) considered necessary for a fair presentation of our financial position at such date and the operating results and cash flows for such periods. Operating results for the six and three months ended June 30, 2021 are not necessarily indicative of the results that may be expected for the entire year or for any other subsequent interim period. The interim consolidated financial information should be read in conjunction with the Financial Statements and the notes thereto, included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, previously filed with the SEC on April 15, 2021. | Basis of Presentation The consolidated financial statements (“CFS”) were prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”).
Basis of Consolidation | Basis of Consolidation The CFS include the accounts of CREG and its subsidiaries, Shanghai Yinghua Financial Leasing Co., Ltd. (“Yinghua”) and Sifang Holdings; Sifang Holdings’ wholly owned subsidiaries, Huahong New Energy Technology Co., Ltd. (“Huahong”) and Shanghai TCH Energy Tech Co., Ltd. (“Shanghai TCH”); Shanghai TCH’s wholly-owned subsidiary, Xi’an TCH Energy Tech Co., Ltd. (“Xi’an TCH”); and Xi’an TCH’s subsidiaries, 1) Erdos TCH Energy Saving Development Co., Ltd (“Erdos TCH”), 100% owned by Xi’an TCH, 2) Zhonghong, 90% owned by Xi’an TCH and 10% owned by Shanghai TCH, and 3) Zhongxun, 100% owned by Xi’an TCH. Substantially all the Company’s revenues are derived from the operations of Shanghai TCH and its subsidiaries, which represent substantially all the Company’s consolidated assets and liabilities as of June 30, 2021. However, there was no revenue for the Company for the six and three months ended June 30, 2021. All significant inter-company accounts and transactions were eliminated in consolidation. | Basis of Consolidation The CFS include the accounts of CREG and its subsidiaries, Shanghai Yinghua Financial Leasing Co., Ltd. (“Yinghua”) and Sifang Holdings; Sifang Holdings’ wholly owned subsidiaries, Huahong New Energy Technology Co., Ltd. (“Huahong”) and Shanghai TCH Energy Tech Co., Ltd. (“Shanghai TCH”); Shanghai TCH’s wholly-owned subsidiary, Xi’an TCH Energy Tech Co., Ltd. (“Xi’an TCH”); and Xi’an TCH’s subsidiaries, 1) Erdos TCH Energy Saving Development Co., Ltd (“Erdos TCH”), 100% owned by Xi’an TCH (See note 1), 2) Zhonghong, 90% owned by Xi’an TCH and 10% owned by Shanghai TCH, and 3) Zhongxun, 100% owned by Xi’an TCH. Substantially all the Company’s revenues are derived from the operations of Shanghai TCH and its subsidiaries, which represent substantially all the Company’s consolidated assets and liabilities as of December 31, 2020. However, there was no revenue for the Company for the year ended December 31, 2020. All significant inter-company accounts and transactions were eliminated in consolidation.
Uses and Sources of Liquidity | Uses and Sources of Liquidity For the six and three months ended June 30, 2021, the Company had a net income of $1.94 million and $2.22 million. For the six and three months ended June 30, 2020, the Company had net income of $0.40 million and 1.0 million. The Company had an accumulated deficit of $41.10 million as of June 30, 2021. The Company disposed all of its systems and currently holds only five power generating systems through Erdos TCH, the five power generating systems are currently not producing any electricity. The Company is in the process of transforming and expanding into an energy storage integrated solution provider. The Company plans to pursue disciplined and targeted expansion strategies for market areas the Company currently does not serve. The Company actively seeks and explores opportunities to apply energy storage technologies to new industries or segments with high growth potential, including industrial and commercial complexes, large scale photovoltaic (PV) and wind power stations, remote islands without electricity, and smart energy cities with multi-energy supplies. The Company’s cash flow forecast indicate it will have sufficient cash to fund its operations for the next 12 months from the date of issuance of these financial statements. | Uses and Sources of Liquidity For the year ended December 31, 2020, the Company had a net income of $4.05 million based on receipts of accounts receivable which had previously been reserved as bad debt allowance and was reversed in 2020. For the year ended December 31, 2019, the Company had net loss of $8.77 million. The Company had an accumulated deficit of $43.03 million as of December 31, 2020. The Company disposed all of its systems and currently holds only five power generating systems through Erdos TCH, which is expected to resume production in July 2021. The Company is in the process of transforming and expanding into an energy storage integrated solution provider. The Company plans to pursue disciplined and targeted expansion strategies for market areas the Company currently does not serve. The Company actively seeks and explores opportunities to apply energy storage technologies to new industries or segments with high growth potential, including industrial and commercial complexes, large scale photovoltaic (PV) and wind power stations, remote islands without electricity, and smart energy cities with multi-energy supplies. The Company had cash of $107.80 million as of December 31, 2020, and has raised additional $38.25 million in a private offering in March 2021. The Company’s cash flow forecast indicate it will have sufficient cash to funds its operations for the next 12 months from the date of issuance of these financial statements. The historical operating results indicate the Company has recurring losses from operations which rise the question related to the Company’s ability to continue as a going concern. However, the Company had $107.80 million cash on hand at December 31, 2020 as a result of collection the full payment from all the projects that had been disposed earlier. The ability of the Company to continue as a going concern is dependent upon the Company’s ability to further implement its business plan and generate sufficient revenue and its ability to raise additional funds by way of a public or private offering, or debt financing including bank loans. The consolidated financial statements do not include any adjustments that might result from the outcome of these uncertainties.
Use of Estimates | Use of Estimates In preparing these CFS in accordance with US GAAP, management makes estimates and assumptions that affect the reported amounts of assets and liabilities in the balance sheets as well as revenues and expenses during the period reported. Actual results may differ from these estimates. On an on-going basis, management evaluates their estimates, including those related to allowances for bad debt and inventory obsolescence, impairment loss on fixed assets and construction in progress, income taxes, and contingencies and litigation. Management bases their estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other resources. | Use of Estimates In preparing these CFS in accordance with US GAAP, management makes estimates and assumptions that affect the reported amounts of assets and liabilities in the balance sheets as well as revenues and expenses during the period reported. Actual results may differ from these estimates. On an on-going basis, management evaluates their estimates, including those related to allowances for bad debt and inventory obsolescence, impairment loss on fixed assets and construction in progress, income taxes, and contingencies and litigation. Management bases their estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other resources.
Revenue Recognition | Revenue Recognition A) Sales-type Leasing and Related Revenue Recognition On January 1, 2019, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 842 using the modified retrospective transition approach by applying the new standard to all leases existing at the date of initial application. Results and disclosure requirements for reporting periods beginning after January 1, 2019 are presented under ASC Topic 842, while prior period amounts have not been adjusted and continue to be reported in accordance with our historical accounting under Topic 840. (See Operating lease below as relates to the Company as a lessee). The Company’s sales type lease contracts for revenue recognition fall under ASC 842. During the six and three months ended June 30, 2021 and 2020, the Company did not sell any new power generating projects. The Company constructs and leases waste energy recycling power generating projects to its customers. The Company typically transfers legal ownership of the waste energy recycling power generating projects to its customers at the end of the lease. Prior to January 1, 2019, the investment in these projects was recorded as investment in sales-type leases in accordance with ASC Topic 840, “Leases,” and its various amendments and interpretations. The Company finances construction of waste energy recycling power generating projects. The sales and cost of sales are recognized at the inception of the lease, which is when the control is transferred to the lessee. The Company accounts for the transfer of control as a sales type lease in accordance with ASC 842-10-25-2. The underlying asset is derecognized, and revenue is recorded when collection of payments is probable. This is in accordance with the revenue recognition principle in ASC 606 - Revenue from contracts with customers. The investment in sales-type leases consists of the sum of the minimum lease payments receivable less unearned interest income and estimated executory cost. Minimum lease payments are part of the lease agreement between the Company (as the lessor) and the customer (as the lessee). The discount rate implicit in the lease is used to calculate the present value of minimum lease payments. The minimum lease payments consist of the gross lease payments net of executory costs and contingent rentals, if any. Unearned interest is amortized to income over the lease term to produce a constant periodic rate of return on net investment in the lease. While revenue is recognized at the inception of the lease, the cash flow from the sales-type lease occurs over the course of the lease, which results in interest income and reduction of receivables. Revenue is recognized net of value-added tax. B) Contingent Rental Income The Company records income from actual electricity generated of each project in the period the income is earned, which is when the electricity is generated. Contingent rent is not part of minimum lease payments. | Revenue Recognition A) Sales-type Leasing and Related Revenue Recognition On January 1, 2019, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 842 using the modified retrospective transition approach by applying the new standard to all leases existing at the date of initial application. Results and disclosure requirements for reporting periods beginning after January 1, 2019 are presented under ASC Topic 842, while prior period amounts have not been adjusted and continue to be reported in accordance with our historical accounting under Topic 840. (See Operating lease below as relates to the Company as a lessee). The Company’s sales type lease contracts for revenue recognition fall under ASC 842. During the years ended December 31, 2020 and 2019, the Company did not sell any new power generating projects. The Company constructs and leases waste energy recycling power generating projects to its customers. The Company typically transfers legal ownership of the waste energy recycling power generating projects to its customers at the end of the lease. Prior to January 1, 2019, the investment in these projects was recorded as investment in sales-type leases in accordance with ASC Topic 840, “Leases,” and its various amendments and interpretations. The Company finances construction of waste energy recycling power generating projects. The sales and cost of sales are recognized at the inception of the lease, which is when the control is transferred to the lessee. The Company accounts for the transfer of control as a sales type lease in accordance with ASC 842-10-25-2. The underlying asset is derecognized, and revenue is recorded when collection of payments is probable. This is in accordance with the revenue recognition principle in ASC 606 - Revenue from contracts with customers. The investment in sales-type leases consists of the sum of the minimum lease payments receivable less unearned interest income and estimated executory cost. Minimum lease payments are part of the lease agreement between the Company (as the lessor) and the customer (as the lessee). The discount rate implicit in the lease is used to calculate the present value of minimum lease payments. The minimum lease payments consist of the gross lease payments net of executory costs and contingent rentals, if any. Unearned interest is amortized to income over the lease term to produce a constant periodic rate of return on net investment in the lease. While revenue is recognized at the inception of the lease, the cash flow from the sales-type lease occurs over the course of the lease, which results in interest income and reduction of receivables. Revenue is recognized net of value-added tax. B) Contingent Rental Income The Company records income from actual electricity generated of each project in the period the income is earned, which is when the electricity is generated. Contingent rent is not part of minimum lease payments.
Operating Leases | Operating Leases The Company determines if an arrangement is a lease or contains a lease at inception. Operating lease liabilities are recognized based on the present value of the remaining lease payments, discounted using the discount rate for the lease at the commencement date. As the rate implicit in the lease is not readily determinable for the operating lease, the Company generally uses an incremental borrowing rate based on information available at the commencement date to determine the present value of future lease payments. Operating lease right-of-use (“ROU assets”) assets represent the Company’s right to control the use of an identified asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets are generally recognized based on the amount of the initial measurement of the lease liability. Lease expense is recognized on a straight-line basis over the lease term. The Company elected the package of practical expedients permitted under the transition guidance to combine the lease and non-lease components as a single lease component for operating leases associated with the Company’s office space lease, and to keep leases with an initial term of 12 months or less off the balance sheet and recognize the associated lease payments in the consolidated statements of income on a straight-line basis over the lease term. ROU assets are reviewed for impairment when indicators of impairment are present. ROU assets from operating and finance leases are subject to the impairment guidance in ASC 360, Property, Plant, and Equipment, as ROU assets are long-lived nonfinancial assets. ROU assets are tested for impairment individually or as part of an asset group if the cash flows related to the ROU asset are not independent from the cash flows of other assets and liabilities. An asset group is the unit of accounting for long-lived assets to be held and used, which represents the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. At June 30, 2021, the ROU was $161,510. The Company recognized no impairment of ROU assets as of June 30, 2021. Operating leases are included in operating lease right-of-use assets and operating lease liabilities (current and non-current), on the consolidated balance sheets. | Operating Leases On January 1, 2019, the Company adopted Topic 842 using the modified retrospective transition approach by applying the new standard to all leases existing at the date of initial application. Results and disclosure requirements for reporting periods beginning after January 1, 2019 are presented under Topic 842, while prior period amounts have not been adjusted and continue to be reported in accordance with its historical accounting under Topic 840. The new standard establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company elected the package of practical expedients permitted under the transition guidance, which allowed it to carry forward its historical lease classification, its assessment on whether a contract was or contains a lease, and its initial direct costs for any leases that existed prior to January 1, 2019. The Company also elected to combine its lease and non-lease components and to keep leases with an initial term of 12 months or less off the balance sheet and recognize the associated lease payments in the consolidated statements of income on a straight-line basis over the lease term. The Company leased an office in Xi’an, China as the Company’s headquarter; upon adoption, the Company recognized total Right of Use Asset (“ROU”) of $116,917, with corresponding liabilities of $116,917 on the consolidated balance sheets. The ROU assets include adjustments for prepayments and accrued lease payments. The adoption did not impact its beginning retained earnings, or its prior year consolidated statements of income and statements of cash flows. At December 31, 2020, the ROU was $0 as the lease was expired in November 2020. Under Topic 842, the Company determines if an arrangement is a lease at inception. ROU assets and liabilities are recognized at commencement date based on the present value of remaining lease payments over the lease term. For this purpose, the Company considers only payments that are fixed and determinable at the time of commencement. As most of its leases do not provide an implicit rate, it uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The Company’s incremental borrowing rate is a hypothetical rate based on its understanding of what its credit rating would be. The ROU asset also includes any lease payments made prior to commencement and is recorded net of any lease incentives received. The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that it will exercise such options. Operating leases are included in operating lease right-of-use assets and operating lease liabilities (current and non-current), on the consolidated balance sheets.
Cash | Cash Cash include cash on hand, demand deposits placed with banks or other financial institutions and all highly liquid investments with an original maturity of three months or less as of the purchase date. | Cash Cash include cash on hand, demand deposits placed with banks or other financial institutions and all highly liquid investments with an original maturity of three months or less as of the purchase date.
Accounts Receivable | Accounts Receivable The Company’s policy is to maintain an allowance for potential credit losses on accounts receivable. Management reviews the composition of accounts receivable and analyzes historical bad debts, customer concentrations, customer credit worthiness, current economic trends and changes in customer payment patterns to evaluate the adequacy of these reserves. As of June 30, 2021 and December 31, 2020, the Company had gross accounts receivable of $0 and $342,974 of Erdos TCH for electricity sold, respectively. As of June 30, 2021 and December 31, 2020, the Company had bad debt allowance of $0 and $34,297 for Erdos TCH due to the customer not making the payments as scheduled, respectively. As of June 30, 2021, all outstanding accounts receivable balance was collected in full. | Accounts Receivable The Company’s policy is to maintain an allowance for potential credit losses on accounts receivable. Management reviews the composition of accounts receivable and analyzes historical bad debts, customer concentrations, customer credit worthiness, current economic trends and changes in customer payment patterns to evaluate the adequacy of these reserves. As of December 31, 2020, the Company had gross accounts receivable of $342,974 of Erdos TCH for electricity sold. As of December 31, 2019, the Company had gross accounts receivable of $48.06 million; of which, $35.42 million was for transferring the ownership of Huayu and Shenqiu Phase I and II systems to Mr. Bai; $10.03 million was from the sales of CDQ and a CDQ WHPG system to Zhongtai, and $2.61 million accounts receivable of Erdos TCH for electricity sold. As of December 31, 2020, the Company had bad debt allowance of $34,297 for Erdos TCH due to the customer not making the payments as scheduled. As of December 31, 2019, the Company had bad debt allowance of $5,733,781 for Zhongtai and $261,430 for Erdos TCH due to the customer not making the payments as scheduled. During the year ended December 31, 2020, the Company recognized a reversal of the bad debt allowance of $6,031,058, of which $5,799,094 was for Zhongtai and $231,964 was for Erdos TCH as a result of payment collection from Zhongtai and Erdos TCH. As of December 31, 2020, the Company received the payment in full from all the projects which had been disposed earlier.
|  | 2020 |  |  | 2019 |
Xuzhou Zhongtai project |  | $ | - |  |  | $ | 10,034,116 |
Bai Chonggong (for Shenqiu and Huayu projects) |  |  | - |  |  |  | 35,415,556 |
Xuzhou Tian’an project |  |  | - |  |  |  | - |
Receivable of electricity sales of Erdos |  |  | 342,974 |  |  |  | 2,614,299 |
Total accounts receivable |  |  | 342,974 |  |  |  | 48,063,971 |
Bad debt allowance |  |  | (34,297 | ) |  |  | (5,995,210 | )
Accounts receivable, net |  |  | 308,677 |  |  | $ | 42,068,761 |
Concentration of Credit Risk | Concentration of Credit Risk Cash includes cash on hand and demand deposits in accounts maintained within China. Balances at financial institutions and state-owned banks within the PRC are covered by insurance up to RMB 500,000 (US$76,000) per bank. Any balance over RMB 500,000 (US$76,000) per bank in PRC will not be covered. At June 30, 2021, cash held in the PRC bank of approximately $145,934,700 was not covered by such insurance. The Company has not experienced any losses in such accounts. Certain other financial instruments, which subject the Company to concentration of credit risk, consist of accounts and other receivables. The Company does not require collateral or other security to support these receivables. The Company conducts periodic reviews of its customers’ financial condition and customer payment practices to minimize collection risk on accounts receivable. The operations of the Company are in the PRC. Accordingly, the Company’s business, financial condition and results of operations may be influenced by the political, economic and legal environments in the PRC. | Concentration of Credit Risk Cash includes cash on hand and demand deposits in accounts maintained within China. Balances at financial institutions and state-owned banks within the PRC are covered by insurance up to RMB 500,000 (US$77,000) per bank. Any balance over RMB 500,000 (US$77,000) per bank in PRC will not be covered. At December 31, 2020, cash held in the PRC bank of $107,510,548 was not covered by such insurance. The Company has not experienced any losses in such accounts. Certain other financial instruments, which subject the Company to concentration of credit risk, consist of accounts and other receivables. The Company does not require collateral or other security to support these receivables. The Company conducts periodic reviews of its customers’ financial condition and customer payment practices to minimize collection risk on accounts receivable. The operations of the Company are in the PRC. Accordingly, the Company’s business, financial condition and results of operations may be influenced by the political, economic and legal environments in the PRC.
Property and Equipment | Property and Equipment Property and equipment are stated at cost, net of accumulated depreciation. Expenditures for maintenance and repairs are expensed as incurred; additions, renewals and betterments are capitalized. When property and equipment are retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the respective accounts, and any gain or loss is included in operations. Depreciation of property and equipment is provided using the straight-line method over the estimated lives as follows:
Vehicles |  | 2 - 5 years |
Office and Other Equipment |  | 2 - 5 years |
Software |  | 2 - 3 years |
| Property and Equipment Property and equipment are stated at cost, net of accumulated depreciation. Expenditures for maintenance and repairs are expensed as incurred; additions, renewals and betterments are capitalized. When property and equipment are retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the respective accounts, and any gain or loss is included in operations. Depreciation of property and equipment is provided using the straight-line method over the estimated lives as follows:
Vehicles |  |  | 2 - 5 years |
Office and Other Equipment |  |  | 2 - 5 years |
Software |  |  | 2 - 3 years |
Impairment of Long-lived Assets | Impairment of Long-lived Assets In accordance with FASB ASC Topic 360, “Property, Plant, and Equipment,” the Company reviews its long-lived assets, including property and equipment, for impairment whenever events or changes in circumstances indicate that the carrying amounts of the assets may not be fully recoverable. If the total expected undiscounted future net cash flows are less than the carrying amount of the asset, a loss is recognized for the difference between the fair value and carrying amount of the asset. The Company recorded $0 asset impairment loss for the six and three months ended June 30, 2021 and 2020. | Impairment of Long-lived Assets In accordance with FASB ASC Topic 360, “Property, Plant, and Equipment,” the Company reviews its long-lived assets, including property and equipment, for impairment whenever events or changes in circumstances indicate that the carrying amounts of the assets may not be fully recoverable. If the total expected undiscounted future net cash flows are less than the carrying amount of the asset, a loss is recognized for the difference between the fair value and carrying amount of the asset. The Company recorded $0 asset impairment loss for the years ended December 31, 2020 and 2019.
Cost of Sales | Cost of Sales Cost of sales consists primarily of the direct material of the power generating system and expenses incurred directly for project construction for sales-type leasing and sales tax and additions for contingent rental income. | Cost of Sales Cost of sales consists primarily of the direct material of the power generating system and expenses incurred directly for project construction for sales-type leasing and sales tax and additions for contingent rental income.
Income Taxes | Income Taxes Income taxes are accounted for using an asset and liability method. Under this method, deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases of assets and liabilities and their financial reporting amounts at each period end based on enacted tax laws and statutory tax rates, applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. The Company follows FASB ASC Topic 740, which prescribes a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. ASC Topic 740 also provides guidance on recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods, and income tax disclosures. Under the provisions of FASB ASC Topic 740, when tax returns are filed, it is likely that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50 percent likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying balance sheets along with any associated interest and penalties that would be payable to the taxing authorities upon examination. Interest associated with unrecognized tax benefits is classified as interest expense and penalties are classified in selling, general and administrative expenses in the statement of income. At June 30, 2021 and December 31, 2020, the Company did not take any uncertain positions that would necessitate recording a tax related liability. | Income Taxes Income taxes are accounted for using an asset and liability method. Under this method, deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases of assets and liabilities and their financial reporting amounts at each period end based on enacted tax laws and statutory tax rates, applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. The Company follows FASB ASC Topic 740, which prescribes a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. ASC Topic 740 also provides guidance on recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods, and income tax disclosures. Under the provisions of FASB ASC Topic 740, when tax returns are filed, it is likely that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50 percent likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying balance sheets along with any associated interest and penalties that would be payable to the taxing authorities upon examination. Interest associated with unrecognized tax benefits is classified as interest expense and penalties are classified in selling, general and administrative expenses in the statement of income. At December 31, 2020 and 2019, the Company did not take any uncertain positions that would necessitate recording a tax related liability.
Statement of Cash Flows | Statement of Cash Flows In accordance with FASB ASC Topic 230, “Statement of Cash Flows,” cash flows from the Company’s operations are calculated based upon the local currencies. As a result, amounts related to assets and liabilities reported on the statement of cash flows may not necessarily agree with changes in the corresponding balances on the balance sheet. | Statement of Cash Flows In accordance with FASB ASC Topic 230, “Statement of Cash Flows,” cash flows from the Company’s operations are calculated based upon the local currencies. As a result, amounts related to assets and liabilities reported on the statement of cash flows may not necessarily agree with changes in the corresponding balances on the balance sheet.
Fair Value of Financial Instruments | Fair Value of Financial Instruments For certain of the Company’s financial instruments, including cash and equivalents, restricted cash, accounts receivable, other receivables, accounts payable, accrued liabilities and short-term debts, the carrying amounts approximate their fair values due to their short maturities. Receivables on sales-type leases are based on interest rates implicit in the lease. FASB ASC Topic 820, “Fair Value Measurements and Disclosures,” requires disclosure of the FV of financial instruments held by the Company. FASB ASC Topic 825, “Financial Instruments,” defines FV, and establishes a three-level valuation hierarchy for disclosures of FV measurement that enhances disclosure requirements for FV measures. The carrying amounts reported in the consolidated balance sheets for receivables and current liabilities each qualify as financial instruments and are a reasonable estimate of their FV because of the short period of time between the origination of such instruments and their expected realization and their current market rate of interest. The three levels of valuation hierarchy are defined as follows:
| ● | Level 1 inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
| ● | Level 2 inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
| ● | Level 3 inputs to the valuation methodology are unobservable and significant to FV measurement.
Effective on January 1, 2020, the Company adopted ASU 2018-13, Fair Value Measurement: Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements for Level 1, Level 2 and Level 3 instruments in the FV hierarchy. The Company analyzes all financial instruments with features of both liabilities and equity under FASB ASC 480, “Distinguishing Liabilities from Equity,” and ASC 815, “Derivatives and Hedging.” As of June 30, 2021 and December 31, 2020, the Company did not have any long-term debt obligations; and the Company did not identify any assets or liabilities that are required to be presented on the balance sheet at FV. | Fair Value of Financial Instruments For certain of the Company’s financial instruments, including cash and equivalents, restricted cash, accounts receivable, other receivables, accounts payable, accrued liabilities and short-term debts, the carrying amounts approximate their fair values due to their short maturities. Receivables on sales-type leases are based on interest rates implicit in the lease. FASB ASC Topic 820, “Fair Value Measurements and Disclosures,” requires disclosure of the FV of financial instruments held by the Company. FASB ASC Topic 825, “Financial Instruments,” defines FV, and establishes a three-level valuation hierarchy for disclosures of FV measurement that enhances disclosure requirements for FV measures. The carrying amounts reported in the consolidated balance sheets for receivables and current liabilities each qualify as financial instruments and are a reasonable estimate of their FV because of the short period of time between the origination of such instruments and their expected realization and their current market rate of interest. The three levels of valuation hierarchy are defined as follows:
| ● | Level 1 inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
| ● | Level 2 inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
| ● | Level 3 inputs to the valuation methodology are unobservable and significant to FV measurement.
Effective on January 1, 2020, the Company adopted ASU 2018-13, Fair Value Measurement: Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements for Level 1, Level 2 and Level 3 instruments in the FV hierarchy. The Company analyzes all financial instruments with features of both liabilities and equity under FASB ASC 480, “Distinguishing Liabilities from Equity,” and ASC 815, “Derivatives and Hedging.” As of December 31, 2020 and 2019, the Company did not have any long-term debt obligations; and the Company did not identify any assets or liabilities that are required to be presented on the balance sheet at FV.
Stock-Based Compensation | Stock-Based Compensation The Company accounts for share-based compensation awards to employees in accordance with FASB ASC Topic 718, “Compensation – Stock Compensation”, which requires that share-based payment transactions with employees be measured based on the grant-date fair value of the equity instrument issued and recognized as compensation expense over the requisite service period. The Company accounts for share-based compensation awards to non-employees in accordance with FASB ASC Topic 718 and FASB ASC Subtopic 505-50, “Equity-Based Payments to Non-employees”. Share-based compensation associated with the issuance of equity instruments to non-employees is measured at the fair value of the equity instrument issued or committed to be issued, as this is more reliable than the fair value of the services received. The fair value is measured at the date that the commitment for performance by the counterparty has been reached or the counterparty’s performance is complete. Effective on January 1, 2020, the Company adopted ASU 2018-07, “Compensation — Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting,” which expands the scope of ASC 718 to include share-based payment transactions for acquiring goods and services from non-employees. An entity should apply the requirements of ASC 718 to non-employee awards except for specific guidance on inputs to an option pricing model and the attribution of cost. The amendments specify that ASC 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards. The adoption of ASU 2018-07 did not have an impact on the Company’s financial statements. | Stock-Based Compensation The Company accounts for share-based compensation awards to employees in accordance with FASB ASC Topic 718, “Compensation – Stock Compensation”, which requires that share-based payment transactions with employees be measured based on the grant-date fair value of the equity instrument issued and recognized as compensation expense over the requisite service period. The Company accounts for share-based compensation awards to non-employees in accordance with FASB ASC Topic 718 and FASB ASC Subtopic 505-50, “Equity-Based Payments to Non-employees”. Share-based compensation associated with the issuance of equity instruments to non-employees is measured at the fair value of the equity instrument issued or committed to be issued, as this is more reliable than the fair value of the services received. The fair value is measured at the date that the commitment for performance by the counterparty has been reached or the counterparty’s performance is complete. Effective on January 1, 2020, the Company adopted ASU 2018-07, “Compensation — Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting,” which expands the scope of ASC 718 to include share-based payment transactions for acquiring goods and services from non-employees. An entity should apply the requirements of ASC 718 to non-employee awards except for specific guidance on inputs to an option pricing model and the attribution of cost. The amendments specify that ASC 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards. The adoption of ASU 2018-07 did not have an impact on the Company’s financial statements.
Basic and Diluted Earnings per Share | Basic and Diluted Earnings per Share The Company presents net income (loss) per share (“EPS”) in accordance with FASB ASC Topic 260, “Earning Per Share.” Accordingly, basic income (loss) per share is computed by dividing income (loss) available to common stockholders by the weighted average number of shares outstanding, without consideration for common stock equivalents. Diluted EPS is computed by dividing the net income by the weighted-average number of common shares outstanding as well as common share equivalents outstanding for the period determined using the treasury-stock method for stock options and warrants and the if-converted method for convertible notes. The Company made an accounting policy election to use the if-converted method for convertible securities that are eligible to receive common stock dividends, if declared. Diluted EPS reflect the potential dilution that could occur based on the exercise of stock options or warrants or conversion of convertible securities using the if-converted method. For the six and three months ended June 30, 2021 and 2020, the basic and diluted loss per share were the same due to the anti-dilutive features of the warrants and options. For the six and three months ended June 30, 2021, 30,911 shares purchasable under warrants and options were excluded from the EPS calculation as these were not dilutive due to the exercise price was more than the stock market price. For the six and three months ended June 30, 2020, 31,311 shares purchasable under warrants and options were excluded from the EPS calculation as these were not dilutive due to the exercise price was more than the stock market price. | Basic and Diluted Earnings per Share The Company presents net income (loss) per share (“EPS”) in accordance with FASB ASC Topic 260, “Earning Per Share.” Accordingly, basic income (loss) per share is computed by dividing income (loss) available to common stockholders by the weighted average number of shares outstanding, without consideration for common stock equivalents. Diluted EPS is computed by dividing the net income by the weighted-average number of common shares outstanding as well as common share equivalents outstanding for the period determined using the treasury-stock method for stock options and warrants and the if-converted method for convertible notes. The Company made an accounting policy election to use the if-converted method for convertible securities that are eligible to receive common stock dividends, if declared. Diluted EPS reflect the potential dilution that could occur based on the exercise of stock options or warrants or conversion of convertible securities using the if-converted method. For the years ended December 31, 2020 and 2019, the basic and diluted loss per share were the same due to the anti-dilutive features of the warrants and options. For the years ended December 31, 2020 and 2019, 31,311 shares and 406,764 shares (post-reverse stock split), respectively; purchasable under warrants and options were excluded from the EPS calculation as these were not dilutive due to the exercise price was more than the stock market price.
Foreign Currency Translation and Comprehensive Income (Loss) | Foreign Currency Translation and Comprehensive Income (Loss) The Company’s functional currency is the Renminbi (“RMB”). For financial reporting purposes, RMB were translated into United States Dollars (“USD” or “$”) as the reporting currency. Assets and liabilities are translated at the exchange rate in effect at the balance sheet date. Revenues and expenses are translated at the average rate of exchange prevailing during the reporting period. Translation adjustments arising from the use of different exchange rates from period to period are included as a component of stockholders’ equity as “Accumulated other comprehensive income.” Gains and losses resulting from foreign currency transactions are included in income. There was no significant fluctuation in the exchange rate for the conversion of RMB to USD after the balance sheet date. The Company follows FASB ASC Topic 220, “Comprehensive Income.” Comprehensive income is comprised of net income and all changes to the statements of stockholders’ equity, except those due to investments by stockholders, changes in paid-in capital and distributions to stockholders. | Foreign Currency Translation and Comprehensive Income (Loss) The Company’s functional currency is the Renminbi (“RMB”). For financial reporting purposes, RMB were translated into United States Dollars (“USD” or “$”) as the reporting currency. Assets and liabilities are translated at the exchange rate in effect at the balance sheet date. Revenues and expenses are translated at the average rate of exchange prevailing during the reporting period. Translation adjustments arising from the use of different exchange rates from period to period are included as a component of stockholders’ equity as “Accumulated other comprehensive income.” Gains and losses resulting from foreign currency transactions are included in income. There was no significant fluctuation in the exchange rate for the conversion of RMB to USD after the balance sheet date. The Company follows FASB ASC Topic 220, “Comprehensive Income.” Comprehensive income is comprised of net income and all changes to the statements of stockholders’ equity, except those due to investments by stockholders, changes in paid-in capital and distributions to stockholders.
Segment Reporting | Segment Reporting FASB ASC Topic 280, “Segment Reporting,” requires use of the “management approach” model for segment reporting. The management approach model is based on the way a company’s management organizes segments within the company for making operating decisions and assessing performance. Reportable segments are based on products and services, geography, legal structure, management structure, or any other manner in which management disaggregates a company. FASB ASC Topic 280 has no effect on the Company’s CFS as substantially all of the Company’s operations are conducted in one industry segment. All of the Company’s assets are located in the PRC. | Segment Reporting FASB ASC Topic 280, “Segment Reporting,” requires use of the “management approach” model for segment reporting. The management approach model is based on the way a company’s management organizes segments within the company for making operating decisions and assessing performance. Reportable segments are based on products and services, geography, legal structure, management structure, or any other manner in which management disaggregates a company. FASB ASC Topic 280 has no effect on the Company’s CFS as substantially all of the Company’s operations are conducted in one industry segment. All of the Company’s assets are located in the PRC.
New Accounting Pronouncements | New Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326), which requires entities to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This replaces the existing incurred loss model and is applicable to the measurement of credit losses on financial assets measured at amortized cost. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. Early application will be permitted for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact that the standard will have on its CFS. In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The guidance should be adopted on a prospective basis. As a smaller reporting company, the standard will be effective for the Company for interim and annual reporting periods beginning after December 15, 2022, with early adoption permitted. The Company is currently evaluating the impact of adopting this standard on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) (“ASU 2020-04”). ASU 2020-04 contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in ASU 2020-04 is optional and may be elected over time as reference rate reform activities occur. The Company continues to evaluate the impact of the guidance and may apply the elections as applicable as changes in the market occur. In August 2020, the FASB issued ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470- 20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”), which simplifies the accounting for certain financial instruments with characteristics of liabilities and equity. This ASU (1) simplifies the accounting for convertible debt instruments and convertible preferred stock by removing the existing guidance in ASC 470-20, Debt: Debt with Conversion and Other Options, that requires entities to account for beneficial conversion features and cash conversion features in equity, separately from the host convertible debt or preferred stock; (2) revises the scope exception from derivative accounting in ASC 815-40 for freestanding financial instruments and embedded features that are both indexed to the issuer’s own stock and classified in stockholders’ equity, by removing certain criteria required for equity classification; and (3) revises the guidance in ASC 260, Earnings Per Share, to require entities to calculate diluted earnings per share (EPS) for convertible instruments by using the if-converted method. In addition, entities must presume share settlement for purposes of calculating diluted EPS when an instrument may be settled in cash or shares. For SEC filers, excluding smaller reporting companies, ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. For all other entities, ASU 2020-06 is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Entities should adopt the guidance as of the beginning of the fiscal year of adoption and cannot adopt the guidance in an interim reporting period. The Company is currently evaluating the impact that ASU 2020-06 may have on its consolidated financial statements and related disclosures. Other recent accounting pronouncements issued by the FASB, including its Emerging Issues Task Force, the American Institute of Certified Public Accountants, and the SEC did not or are not believed by management to have a material impact on the Company’s present or future CFS. | New Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326), which requires entities to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This replaces the existing incurred loss model and is applicable to the measurement of credit losses on financial assets measured at amortized cost. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. Early application will be permitted for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact that the standard will have on its CFS. In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes, eliminates certain exceptions within ASC 740, Income Taxes, and clarifies certain aspects of the current guidance to promote consistent application among reporting entities. The guidance is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years, with early adoption permitted. Upon adoption, the Company must apply certain aspects of this standard retrospectively for all periods presented while other aspects are applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company is evaluating the impact this update will have on its financial statements. Other recent accounting pronouncements issued by the FASB, including its Emerging Issues Task Force, the American Institute of Certified Public Accountants, and the SEC did not or are not believed by management to have a material impact on the Company’s present or future CFS.
Interest Receivable on Sales Type Leases |  | Interest Receivable on Sales Type Leases As of December 31, 2020, the interest receivable on sales type leases was $0. As of December 31, 2019, the interest receivable on sales type leases was $5,245,244, mainly from recognized but not yet collected interest income for the Pucheng systems. The ownership of Pucheng systems was transferred to Pucheng as a result of full payment received by Xi’an TCH in January 2020.
Investment in sales-type leases, net |  | Investment in sales-type leases, net As of December 31, 2020, the Company had net investment in sales-type leases of $0. As of December 31, 2019, the Company had net investment in sales-type leases of $8,287,560 (after bad debt allowance for investment in sales-type leases of $24,416,441 for the Pucheng system). The Company maintains reserves for potential credit losses on receivables. Management reviews the composition of receivables and analyzes historical bad debts, customer concentrations, customer credit worthiness, current economic trends and changes in customer payment patterns to evaluate the adequacy of these reserves.

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