Securities code: 688111 Securities abbreviation: Kingsoft Office Announcement No.: 2025-016

Beijing Kingsoft Office Software Co., Ltd

Announcement on the voluntary commitment of the company's controlling shareholders not to reduce their holdings of the company's shares

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or material omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content.

On April 10, 2025, Beijing Kingsoft Office Software Co., Ltd. (hereinafter referred to as the "Company")

Received Kingsoft WPS Corporation Limited (hereinafter referred to as "WPS Hong Kong"), the controlling shareholder of the Company

The "Commitment on Voluntarily Not Reducing the Shares of Beijing Kingsoft Office Software Co., Ltd." is hereby announced as follows:

Based on the confidence in the company's future development prospects and the recognition of the company's intrinsic investment value, and at the same time, in order to enhance the confidence of the majority of investors, effectively maintain the rights and interests of investors and the stability of the capital market. WPS Hong Kong Voluntary Commitments:

From April 10, 2025 to December 31, 2025, the company will not be reduced in any way

Shares (including new shares obtained due to the conversion of the company's capital reserve into share capital, distribution of stock dividends, allotment, additional issuance, etc.).

As of the disclosure date of this announcement, WPS Hong Kong held 238,387,351 shares of the company, accounting for 51.52% of the company's total share capital.

The Board of Directors of the Company will continue to supervise the above commitments of WPS Hong Kong, and fulfill the relevant information disclosure obligations in a timely manner in accordance with the Company Law of the People's Republic of China, the Securities Law of the People's Republic of China, and the relevant laws, regulations and normative documents of the China Securities Regulatory Commission and the Shanghai Stock Exchange.

The announcement is hereby made.

Beijing Kingsoft Office Software Co., Ltd

board of directors

April 11, 2025