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v3.25.4

Long Term Payable (Details) |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 14, 2024 USD ($) | Oct. 14, 2024 CNY (¥) | Nov. 04, 2022 USD ($) | Oct. 27, 2023 USD ($) | Oct. 27, 2023 CNY (¥) | Jun. 30, 2025 USD ($) | Jun. 30, 2025 CNY (¥) | Jun. 30, 2024 USD ($) | Jun. 30, 2024 CNY (¥) | Dec. 31, 2024 CNY (¥) | Jun. 30, 2025 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 CNY (¥) | Feb. 07, 2023 USD ($) | Feb. 07, 2023 CNY (¥) | Nov. 04, 2022 CNY (¥)
Ronghe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  | $ 5,583,785 |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 40,000,000
Prime rate |  |  | 1.55% |  |  |  |  |  |  |  |  |  |  |  |  |
Repaid amount |  |  |  |  |  | $ 888,226 | ¥ 6,441,949 | $ 942,510 | ¥ 6,800,211 |  |  |  |  |  |  |
Outstanding loans |  |  |  |  |  | 850,925 |  |  |  |  |  | $ 1,658,984 |  |  |  |
Current portion of loans payable |  |  |  |  |  | 850,925 |  |  |  |  |  | 1,658,984 |  |  |  |
Loans payable non-current portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment original cost |  |  |  |  |  | 6,689,053 |  |  |  |  | ¥ 47,917,699 |  |  |  |  |
Zhongguancun [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,791,892 | ¥ 20,000,000 |
Repaid amount |  |  |  |  |  | 371,505 | 2,694,379 | 747,868 | 5,395,866 |  |  |  |  |  |  |
Outstanding loans |  |  |  |  |  |  |  |  |  |  |  | 363,525 |  |  |  |
Current portion of loans payable |  |  |  |  |  |  |  |  |  |  |  | 363,525 |  |  |  |
Loans payable non-current portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment original cost |  |  |  |  |  |  |  |  |  |  |  | 2,919,955 | ¥ 20,917,392 |  |  |
Long-term facility (in Yuan Renminbi) | ¥ |  |  |  |  |  |  |  |  |  | ¥ 20,000,000 |  |  |  |  |  |
Zhongguancun [Member] | Sale and Leaseback Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.61% | 9.61% |
Guomao [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repaid amount |  |  |  |  |  | 552,397 | 4,006,314 | $ 555,276 | ¥ 4,006,314 |  |  |  |  |  |  |
Outstanding loans |  |  |  |  |  | 366,128 |  |  |  |  |  | 879,062 |  |  |  |
Current portion of loans payable |  |  |  |  |  | 366,128 |  |  |  |  |  | 879,062 |  |  |  |
Loans payable non-current portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property plant and equipment original cost |  |  |  |  |  | 2,093,919 |  |  |  |  | 15,000,000 |  |  |  |  |
Proceeds from sale of machine |  |  |  | $ 2,093,919 | ¥ 15,000,000 |  |  |  |  |  |  |  |  |  |  |
Guomao [Member] | Sale and Leaseback Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt interest rate percentage |  |  |  | 9.13% | 9.13% |  |  |  |  |  |  |  |  |  |  |
Risheng [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repaid amount |  |  |  |  |  | 208,477 | ¥ 1,512,000 |  |  |  |  |  |  |  |  |
Outstanding loans |  |  |  |  |  | 575,048 |  |  |  |  |  | 733,281 |  |  |  |
Current portion of loans payable |  |  |  |  |  | 317,856 |  |  |  |  |  | 329,555 |  |  |  |
Loans payable non-current portion |  |  |  |  |  | 257,192 |  |  |  |  |  | $ 403,726 |  |  |  |
Property plant and equipment original cost |  |  |  |  |  | $ 1,060,919 |  |  |  |  | ¥ 7,600,000 |  |  |  |  |
Proceeds from sale of machine | $ 837,568 | ¥ 6,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Risheng [Member] | Sale and Leaseback Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt interest rate percentage | 12.15% | 12.15% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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