-- Announcement on Release of Pledge of Partial Shares of Controlling Shareholders

Securities code: 603590 Securities abbreviation: Kangchen Pharmaceutical Announcement number: Lin 2025-058

Beijing Kangchen Pharmaceutical Co., Ltd.

Announcement on the Release of Pledge of Part of the Controlling Shareholders’ Shares

The company's board of directors and all directors guarantee that the contents of this announcement do not contain any false records, misleading statements or major omissions, and assume legal responsibility for the authenticity, accuracy and completeness of its contents.

Important content reminder:

 As of the disclosure date of this announcement, Mr. Liu Jianhua, the controlling shareholder of Beijing Kangchen Pharmaceutical Co., Ltd. (hereinafter referred to as the "Company"), holds 49,827,760 shares of the company, accounting for 31.27% of the company's total share capital. After the release of the share pledge, Mr. Liu Jianhua has pledged a total of 4,646,840 shares of the company, accounting for 9.33% of the company's shares.

Recently, the company learned that the 4.2 million unrestricted tradable shares pledged by Mr. Liu Jianhua to China Galaxy Securities Co., Ltd. have been unpledged. The specific relevant information is as follows:

1. Release of pledge of shares by shareholders this time

Shareholder name Liu Jianhua

This release of pledged shares (shares) 4,200,000

Proportion of shares held by it (%) 8.43

Proportion of total equity of the company (%) 2.64

Pledge release time: October 9, 2025

Number of shares held (shares) 49,827,760

Shareholding ratio (%) 31.27

Number of remaining pledged shares (shares) 4,646,840

The remaining number of pledged shares as a proportion of its shares held (%) 9.33

The remaining number of pledged shares accounts for the total share capital of the company (%) 2.92

2. Accumulated pledged shares by shareholders

As of the disclosure date of this announcement, the cumulative pledged shares of Mr. Liu Jianhua and persons acting in concert are as follows: Pledged shares Unpledged shares account for public shares

This time it’s canceled This time it’s canceled

Pledged Pledged Unpledged

Shareholdings account for total shares of the company

Number of unpledged shares held Accumulated before pledge Accumulated after pledge

in shares in shares in shares

Shareholder name Ratio Shareholding Share capital

Frozen shares (shares) Count the number of pledges Count the number of pledges

Restricted shares Frozen shares Restricted shares

(%) Proportion (%) Proportion

Number of shares Quantity (shares) Quantity (shares)

Serving Quantity Serving Quantity Serving Quantity

(%)

(share) (share) (share) (share)

Liu Jianhua 49,827,760 31.27 8,846,840 4,646,840 9.33 2.92 0 0 0 0Beijing Muren

Investment Management 16,245,600 10.19 0 0 0 0 0 0 0 0 Co., Ltd.

Beijing Puhua

Foundation investment

Advisory Center 9,600,000 6.02 0 0 0 0 0 0 0 0 (limited

Guy)

Total 75,673,360 47.49 8,846,840 4,646,840 6.14 2.92 0 0 0 0The company will continue to pay attention to the pledge of the company's shares held by shareholders, strictly abide by relevant regulations, and perform information disclosure obligations in a timely manner.

Announcement is hereby made.

Board of Directors of Beijing Kangchen Pharmaceutical Co., Ltd. October 11, 2025