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v3.25.1

Property, Plant and Equipment, Net | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment, Net [Abstract] |
Property, plant and equipment, net |
7. | Property, plant and equipment, net
Property, plant and equipment, net consist of the following:
|  | As of December 31, |
|  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |
Machinery and electronic equipment |  |  | 12,098,631 |  |  |  | 17,409,218 |
Office furniture |  |  | 266,252 |  |  |  | 370,667 |
Leasehold improvement |  |  | 1,550,648 |  |  |  | 2,794,450 |
Transportation equipment |  |  | 41,014 |  |  |  | 41,014 |
Buildings and facilities attached to buildings |  |  | — |  |  |  | 194,892,201 |
Construction in progress |  |  | 165,221,605 |  |  |  | — |
Less: Accumulated depreciation |  |  | (9,524,568 | ) |  |  | (18,165,635 | )
Property, plant and equipment, net |  |  | 169,653,582 |  |  |  | 197,341,915 |
Depreciation expenses recognized for the years ended December 31, 2022, 2023 and 2024 were RMB3,353,055, RMB3,436,716 and RMB8,669,931, respectively. As of December 31, 2023 and 2024, property, plant and equipment with net book value of nil and RMB188,432,414 was pledged as collateral under a loan arrangement, respectively (also see Note 11).

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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