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v3.23.1

Intangible Assets, net | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets, net | 10. Intangible Assets, net Intangible assets as of December 31, 2022 and March 31, 2023 consisted of the followings:
|  | December 31, 2022 |  |  | March 31, 2023 |
Computer software at cost |  | $ | 104,211 |  |  | $ | 104,821 |
Sewage discharge permit |  |  | 1,762,129 |  |  |  | 1,772,440 |
|  |  | 1,866,340 |  |  |  | 1,877,261 |
Accumulated amortization |  |  | (557,282 | ) |  |  | (681,826 | )
|  | $ | 1,309,058 |  |  | $ | 1,195,435 |
Amortization expenses were $131,571 and $121,754 for the three months ended March 31, 2022 and 2023, respectively. Total future amortization expenses for finite-lived intangible assets as of March 31, 2023 were estimated as follows:
Remainder of 2023 |  | $ | 364,345 |
2024 |  |  | 483,835 |
2025 |  |  | 321,775 |
2026 |  |  | 6,077 |
2027 |  |  | 4,555 |
Thereafter |  |  | 14,848 |
Total |  | $ | 1,195,435 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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