Stock code: 688169 Stock abbreviation: Roborock Announcement No.: 2025-016

Beijing Stone Century Technology Co., Ltd

Announcement on the use of part of the idle raised funds for cash management

The board of directors and all directors of the company guarantee that the content of this announcement does not contain any false records and misleading statements

or material omissions, and bear legal responsibility for the authenticity, accuracy and completeness of its content in accordance with law.

Beijing Stone Century Technology Co., Ltd. (hereinafter referred to as "Roborock" or "the Company") held the fourth meeting of the third board of directors and the fourth meeting of the third board of supervisors on April 2, 2025 to deliberate and pass the "Proposal on the Use of Part of the Idle Raised Funds for Cash Management", and agreed that the total amount of use by the company shall not exceed RMB 400 million (inclusive) under the condition of ensuring that the construction and use of the raised funds investment projects (hereinafter referred to as the "fund-raising projects") will not be affected. The same below) temporarily idle raised funds are used for cash management in a timely manner to invest in cash management products with high security and good liquidity (including structured deposits, time deposits, large-amount certificates of deposit, etc.), and the above matters do not need to be submitted to the shareholders' meeting for deliberation, and can be used on a rolling basis within the authorization period and authorization amount. The details are as follows:

First, the basic situation of the funds raised

According to the Reply on Agreeing to the Registration of the Initial Public Offering of Shares of Beijing Stone Century Technology Co., Ltd. (Zheng Jian Xu Xu [2020] No. 99) issued by the China Securities Regulatory Commission on January 14, 2020, the Company was approved to issue 16,666,667 RMB ordinary shares to the public for the first time, at an issue price of RMB 271.12 per share, and the total amount of funds raised was RMB 4,518,666,757.04. After deducting the issuance expenses, the actual net proceeds amounted to RMB4,368,126,770.51. The above-mentioned raised funds have been fully in place on February 17, 2020, and PricewaterhouseCoopers Zhongtian Certified Public Accountants (Special General Partnership) has verified the availability of the raised funds for this issuance and issued the "PricewaterhouseCoopers Zhongtian Verification (2020) No. 0108" "Capital Verification Report".

After the raised funds arrived, all of them have been deposited in the special account for raising funds approved by the board of directors of the company, and the company has signed the "Tripartite Supervision Agreement on the Storage of Special Accounts for Raised Funds" with the sponsor institution and the commercial bank depositing the raised funds.

Among them, the unused over-raised funds were 250.3253 million yuan, and the interest income of the raised funds was 118.4972 million yuan. The use of raised funds in the company's raised funds investment projects is as follows:

Unit: RMB 10,000 yuan

Preface The total amount of funds raised in the project plan is the cumulative investment in the raised funds

No. Project Name Investment Total Investment Amount (as of December 2024.)

(adjusted) 31st, audited)

A new generation of robot vacuum cleaner project

1 (closed) 80,059.54 79,300.00 79,300.00

Product development project of commercial cleaning robot

2 (closed) 28,896.32 25,700.28 25,700.28

Stone Zhilian data platform development project

3 (closed) 8,105.70 7,300.00 7,300.00

4 Supplementary working capital 13,156.99 13,156.99 12,731.66

Marketing services and branding projects

5 (closed) 221,284.08 221,284.08 221,284.08

Intelligent Robot Innovation Platform Project

6 (closed) 65,805.34 65,805.34 65,805.34

Self-built manufacturing center project

7 (closed) 30,700.50 23,245.72 23,245.72

Total 448,008.47 435,792.41 435,367.08

Note: 1. On April 21, 2022, in view of the completion of the construction of the "Commercial Cleaning Robot Product Development Project" and the availability of use, the company completed the project, and the project has invested a total of 257.0028 million yuan in raised funds.

2. On September 16, 2022, in view of the completion of the construction of the "new generation sweeping robot project" and the usable state, the company closed the project, and the project has invested a total of 793 million yuan in raised funds.

3. On March 17, 2023, in view of the completion of the construction and usability of the "Stone Zhilian Data Platform Development Project", the company closed the project, and the project has invested a total of 73 million yuan in raised funds.

4. On March 27, 2024, in view of the completion of the construction of the "Marketing Service and Brand Building Project" and the completion of the project, the company closed the project, and the project has invested a total of 221,284.08 million yuan in raised funds.

5. On June 30, 2024, in view of the completion of the construction of the "self-built manufacturing center project" and the availability of use, the company completed the project, and the project has invested a total of 232.4572 million yuan in raised funds.

6. On December 31, 2024, in view of the completion of the construction of the "Intelligent Robot Innovation Platform Project" and the availability of use, the company completed the project, and the project has invested a total of 658.0534 million yuan in raised funds.

In addition to supplementing working capital, the above-mentioned planned projects have been completed, and according to the company's plan for the use of raised funds, part of the company's raised funds are temporarily idle.

(1) Investment purpose

In order to improve the efficiency of the use of raised funds and make reasonable use of part of the idle raised funds, the company intends to reasonably use part of the idle raised funds for cash management under the condition of ensuring that it does not affect the daily production and operation and the construction and use of the fund-raising projects and the safety of the raised funds, so as to increase the company's income and obtain more returns for the company and its shareholders. The use of part of the idle raised funds for cash management does not change the use of raised funds in disguise.

(2) The source of funds and the variety of investment products

The company will strictly control risks in accordance with relevant regulations, and intends to use temporarily idle raised funds to invest in cash management products with high security and good liquidity (including structured deposits, time deposits, large-amount certificates of deposit, etc.), and such cash management products shall not be used for pledge and shall not be used for investment activities for the purpose of securities investment.

(3) Investment amount and term

On the premise of ensuring that the company's raised funds investment plan will not be affected normally, from April 2, 2025 to April 1, 2026, the company plans to use temporarily idle raised funds with a limit of no more than 400 million yuan for cash management. Within this quota and period, the funds can be used on a rolling basis.

(4) Information disclosure

The Company will disclose the specific situation of cash management of raised funds in a timely manner in accordance with the provisions and requirements of relevant laws and regulations such as the Rules for the Listing of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange, the Regulatory Guidelines for Listed Companies No. 2 - Regulatory Requirements for the Management and Use of Funds Raised by Listed Companies, and the Self-Regulatory Guidelines for Listed Companies on the Science and Technology Innovation Board of the Shanghai Stock Exchange No. 1 - Standardized Operation.

(5) Distribution of cash management income

The proceeds obtained by the company from using the temporarily idle raised funds for cash management will be used to make up for the insufficient investment amount of the fund-raising project and the liquidity required for the company's daily operation, and will be managed and used in strict accordance with the requirements of the China Securities Regulatory Commission and the Shanghai Stock Exchange on the supervision of raised funds.

(6) Methods of implementation

The board of directors of the company authorizes the management to exercise the investment decision-making power and sign the relevant contract documents, and the specific matters are organized and implemented by the company's finance department.

3. Investment risk analysis and risk control measures

(1) Investment risk

Although the company chooses cash management products with high security and good liquidity, the financial market is greatly affected by the macroeconomy, and the company will intervene in a timely and appropriate amount according to the economic situation and changes in the financial market

In addition to the risk that the investment will be subject to market fluctuations.

(2) Risk control measures

1. The company will handle relevant cash management business in strict accordance with the relevant laws and regulations such as the Rules for the Listing of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange, the Articles of Association of Beijing Stone Century Technology Co., Ltd. and the Administrative Measures for the Use of Funds Raised by Beijing Stone Century Technology Co., Ltd.

2. The company's finance department will analyze and track the investment direction and progress of wealth management products in a timely manner, and if the assessment finds that there are risk factors that may affect the safety of the company's funds, it will take corresponding preservation measures in time to control investment risks.

3. The independent directors, the board of supervisors and the audit committee of the company have the right to supervise and inspect the use of funds, and if necessary, they can hire professional institutions to conduct audits.

4. The company will handle the relevant cash management business in strict accordance with the relevant provisions of the "Supervision Guidelines for Listed Companies No. 2 - Regulatory Requirements for the Management and Use of Funds Raised by Listed Companies", "Self-Regulatory Guidelines for Listed Companies on the Science and Technology Innovation Board of the Shanghai Stock Exchange No. 1 - Standardized Operation" and "Administrative Measures for the Use of Raised Funds by Beijing Stone Century Technology Co., Ltd." and other relevant regulations, and timely fulfill the obligation of information disclosure.

Fourth, the impact on the company

The company's plan to use part of the temporarily idle raised funds for cash management is carried out under the premise of ensuring the funds required for the company's fund-raising projects and ensuring the safety of the raised funds, which will not affect the normal operation of the company's daily funds and fund-raising projects, will not affect the normal development of the company's main business, and will not change the use of raised funds in disguise. At the same time, timely cash management of temporarily idle raised funds is conducive to further improving the overall performance of the company and seeking better investment returns for the company and shareholders.

The Company will carry out corresponding accounting for wealth management products in accordance with the relevant provisions and guidelines of Accounting Standards for Business Enterprises No. 22 - Recognition and Measurement of Financial Instruments and Accounting Standards for Business Enterprises No. 37 - Presentation of Financial Instruments.

5. Decision-making procedures for implementation

On April 2, 2025, the fourth meeting of the third board of directors and the fourth meeting of the third board of supervisors of the company deliberated and approved the "Proposal on Using Part of the Idle Raised Funds for Cash Management", and agreed that the company should use the temporarily idle raised funds with a total amount of no more than RMB 400 million for cash management in a timely manner. The Board of Supervisors issued a clear agreement and the sponsor issued a clear verification opinion. The above resolutions do not need to be submitted to the shareholders' meeting for review

Discuss.

6. Explanation of special opinions

(1) Opinions of the Board of Supervisors

The Board of Supervisors believes that the company's use of part of the temporarily idle raised funds for cash management in a timely manner can improve the efficiency and income of the company's raised funds, will not affect the normal development and normal production and operation of the company's fund-raising projects, and does not harm the interests of the company and small and medium-sized shareholders, and the decision-making and deliberation procedures on this matter are legal and compliant. Therefore, we agree to the above.

(2) The verification opinions of the sponsor institution

After verification, the sponsor believes that Roborock's use of part of the idle raised funds for cash management has been deliberated and approved by the fourth meeting of the third board of directors and the fourth meeting of the third board of supervisors of the company, and does not need to be submitted to the company's shareholders' meeting for deliberation. This matter complies with the relevant provisions of the Rules for the Listing of Stocks on the Science and Technology Innovation Board of the Shanghai Stock Exchange, the Regulatory Guidelines for Listed Companies No. 2 - Regulatory Requirements for the Management and Use of Funds Raised by Listed Companies, and the Self-Regulatory Guidelines for Listed Companies on the Science and Technology Innovation Board of the Shanghai Stock Exchange No. 1 - Standardized Operation, and does not affect the normal progress of the investment projects of the raised funds, and there is no disguised change in the investment direction of the raised funds and damage to the interests of shareholders. Therefore, the sponsor agreed that Roborock would use part of the idle proceeds for cash management matters.

7. Attachment to the online announcement

Verification Opinions of CITIC Securities Co., Ltd. on the Use of Part of the Idle Raised Funds by Beijing Stone Century Technology Co., Ltd. for Cash Management.

The announcement is hereby made.

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

April 4, 2025