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v3.25.1

Shareholders’ equity (Details Narrative) |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 15, 2024 | Nov. 29, 2024 | Sep. 19, 2023 shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2024 CNY (¥) shares | Dec. 31, 2023 CNY (¥) ¥ / shares shares | Dec. 31, 2024 CNY (¥) ¥ / shares shares | May 14, 2018 $ / shares shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Reverse share split description |  | The Meeting approved amendments to (i) every ten (10) shares of the Company’s ordinary share issued, par value of US$0.001, was consolidated into one (1) share of ordinary share, par value $0.01, and the authorized share capital of the Company was reduced from US$200,000 divided into 200,000,000 shares of a nominal or par value of US$0.0001 each to US$200,000 divided into 20,000,000 shares of a nominal or par value of US$0.01 each; (ii) increase the number of authorized Ordinary shares of the Company from US$200,000 divided into 20,000,000 shares of a nominal or par value of US$0.01 each to US$2,000,000 divided into 200,000,000 shares of a nominal or par value of US$0.01 each, by the creation of an additional 180,000,000 shares of a nominal or par value of US$0.01 each to rank pari passu in all respects with the existing shares in the capital of the Company. | The Meeting approved amendments to (i) every 20 issued and unissued ordinary shares of a nominal or par value of US$0.01 each in the capital of the Company be consolidated into one (1) share of a nominal or par value of US$0.2 each such that following the Share Consolidation the authorized share capital of the Company will be changed from US$2,000,000 divided into 200,000,000 shares of a nominal or par value of US$0.01 each to US$2,000,000 divided into 10,000,000 shares of a nominal or par value of US$0.02 each; (ii) increase the authorized share capital of the Company from US$2,000,000 divided into 10,000,000 Consolidated Ordinary Shares of a nominal or par value of$0.2 each, to US$200,000,000 divided into 1,000,000,000 Consolidated Ordinary Shares of a nominal or par value of $0.2 each, by the creation of an additional 990,000,000 Consolidated Ordinary Shares. |  |  |  |  |  |  |
Share consolidation description |  |  |  |  | the share capital of the Company is US$200,000,000 divided into 1,000,000,000 shares comprising of (i) 800,000,000 Class A Ordinary Shares of a par value of US$0.2 each, and (ii) 200,000,000 Class B Ordinary Shares of a par value of US$0.2 each. | the share capital of the Company is US$200,000,000 divided into 1,000,000,000 shares comprising of (i) 800,000,000 Class A Ordinary Shares of a par value of US$0.2 each, and (ii) 200,000,000 Class B Ordinary Shares of a par value of US$0.2 each. |  |  |  |
Retained earnings for statutory reserves |  |  |  |  | $ 1,134,146 |  | ¥ 13,134,098 |  | ¥ 8,152,694 |
Statutory reserve |  |  |  |  | 197,497 |  | 1,169,819 |  | 1,419,689 |
Statutory reserves |  |  |  |  | 1,134,146 |  | ¥ 13,134,098 |  | ¥ 8,152,694 |
Paid-in-capital and statutory reserve |  |  |  |  | $ 18,007,285 | ¥ 129,443,568 |  |  |  |
Class A Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued |  |  |  | 38,750 |  |  | 38,750 | [1] |  |
Shares issued | [1] |  |  |  | 12,537,537 | 12,537,537 |  |  |  |
Shares issued for cash, shares | [1] |  |  |  | 340,976 | 340,976 |  |  |  |
Class B Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued | [1] |  |  |  | 10,000,000 | 10,000,000 |  |  |  |
Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock, Shares Authorized |  |  |  |  |  |  |  |  |  | 50,000,000
Common stock, par value | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.001
Class A Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value | $ / shares |  |  |  |  | $ 0 |  |  |  |  |
Ordinary stock, shares authorized |  |  |  |  | 800,000,000 |  |  |  | 800,000,000 |
Ordinary stock, shares issued |  |  |  |  | 13,136,546 |  |  |  | 13,136,546 |
Ordinary stock, shares outstanding |  |  |  |  | 13,136,546 |  |  |  | 13,136,546 |
Class B Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value | ¥ / shares |  |  |  |  |  |  |  |  | ¥ 0.2 |
Ordinary stock, shares issued |  |  |  |  | 10,000,000 |  |  |  | 10,000,000 |
Ordinary stock, shares outstanding |  |  |  |  | 10,000,000 |  |  |  | 10,000,000 |
Statutory reserves |  |  |  |  | $ 890,475 |  |  |  | ¥ 6,401,093 |
Common Class A [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock, Shares Authorized |  |  |  |  | 800,000,000 |  | 800,000,000 |  | 800,000,000 |
Common stock, par value | ¥ / shares |  |  |  |  |  |  | ¥ 0.2 |  | ¥ 0.2 |
Ordinary stock, shares issued |  |  |  |  | 13,136,546 |  | 258,033 |  | 13,136,546 |
Ordinary stock, shares outstanding |  |  |  |  | 13,136,546 |  | 258,033 |  | 13,136,546 |
[1] | Number of shares has been retrospectively adjusted for the share consolidation (10 to 1, and 20 to 1) effective March 22, 2024 and December 13, 2024

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