Stock code: 688169 Stock abbreviation: Roborock Announcement No.: 2025-004

Beijing Stone Century Technology Co., Ltd

Announcement on Amending the Articles of Association and Handling the Registration of Industrial and Commercial Changes

The board of directors and all directors of the company guarantee that there is no false record, misleading statement or material omission in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Beijing Stone Century Technology Co., Ltd. (hereinafter referred to as the "Company") on January 10, 2025

The second meeting of the third session of the board of directors was convened, and the "Proposal on Amending <公司章程>and Handling the Registration of Industrial and Commercial Change" was deliberated and passed, and the relevant information is hereby announced as follows:

Combined with the actual operation and management needs of the company, the company intends to amend some provisions of the articles of association as follows:

No. Pre-Amendment Terms Revised Terms

1 Article 8 The chairman of the board of directors is the legal representative of the company Article 8 The chairman of the board of directors or the manager is the law of the company

Person. Designated representative.

Except for the above amendments, the other provisions of the Articles of Association remain unchanged. The revised Articles of Association will be disclosed on the website of the Shanghai Stock Exchange (www.sse.com.cn) on the same day.

The above matters still need to be submitted to the company's first extraordinary shareholders' meeting in 2025 for consideration. At the same time, the board of directors of the company also proposes to the shareholders' meeting to authorize the management of the company or its authorized representative to handle the industrial and commercial change registration and the filing of the articles of association and other related matters, and the above changes are subject to the final approval of the industrial and commercial registration authority.

The announcement is hereby made.

Board of Directors of Beijing Stone Century Technology Co., Ltd

January 11, 2025