Securities code: 688120 Securities abbreviation: Huahai Qingke Announcement No.: 2023-012

Huahai Qingke Co., Ltd.

Announcement on the signing of a four-party supervision agreement on the storage of raised funds in a special account.

the company's board of directors and all directors to ensure that the contents of this announcement does not exist any false records, misleading statements or major omissions, and the authenticity, accuracy and completeness of the contents of the legal responsibility.

Basic situation of 1. raised funds

China Securities Regulatory Commission (hereinafter referred to as "CSRC") on April 27, 2022

The company issued the "Approval on Approving the Registration of the Initial Public Offering of Huahai Qingke Co., Ltd." (Zheng Jian Ke [2022] No. 890), and the company was approved to publicly issue 26.6667 million RMB ordinary shares to the public at a price of RMB 136.66 per share. The total amount of funds raised is 3,644.2712 million yuan. After deducting the issuance cost of 154.3659 million yuan (excluding value-added tax), the net amount of funds raised is 3,489.9053 million yuan.

The above-mentioned fund-raising situation has been verified by Lixin Certified Public Accountants (Special General Partnership), and in.

On June 2, 2022, the Capital Verification Report (Xin Hui Shi Bao Zi [2022] No. ZB11228) was issued. Male

Division in accordance with the provisions of the fund-raising funds for special account storage, and with the sponsor institutions, fund-raising funds special account supervision banks.

A tripartite regulatory agreement was signed to raise funds. For details, please refer to the Shanghai Stock Exchange on June 7, 2022.

The "Announcement of the Listing of Huahai Qingke Initial Public Offering of Shares on the Stock Exchange's website (www.sse.com.cn).

The company held the 33rd meeting of the first board of directors and the first meeting on January 5, 2023.

The 26th meeting of the Supervisory Board was held on January 31, 2023, and the first interim shareholders in 2023 were held.

At the meeting, the motion on using part of the surplus funds raised for investment projects, part of the over-raised funds and self-owned funds to implement new projects was considered and adopted. It is agreed that the company will use the surplus raised funds of 213.0044 million yuan, over-raised funds of 286.9956 million yuan and own funds of 317.543 million yuan to increase capital and provide loans to its wholly-owned subsidiary Huahai Qingke (Beijing) Technology Co., Ltd. (hereinafter referred to as "Huahai Qingke Beijing") for the implementation of "Huahai Qingke Integrated Circuit High-end Equipment Research and Development and Industrialization Project". In response to the above-mentioned motion, independent directors issued

The sponsor issued a verification opinion, as detailed in the company's January 6, 2023.

The "Announcement on the Use of Part of the Raised Funds for Investment Projects, Part of the Over-raised Funds and Self-owned Funds to Implement New Projects" (Announcement No. 2023-003) disclosed on the website of the Shanghai Stock Exchange (www.sse.com.cn).

Signing of the Quadripartite Supervision Agreement on the Storage of Fund-raising Accounts in 2. and the Opening of Fund-raising Accounts

The company held the 33rd meeting of the first board of directors on January 5, 2023, and reviewed and approved the "Proposal on the Establishment of a Special Account for Raised Funds by a Wholly-owned Subsidiary and the Signing of a Raised Funds Supervision Agreement." In order to standardize the deposit, use and management of the raised funds, improve the efficiency of the use of funds, and effectively protect the rights and interests of investors, after completing the corresponding approval procedures, the company and its wholly-owned subsidiary Huahai Qingke Beijing are in accordance with the "Guidelines for the Supervision of Listed Companies No. 2-Regulatory Requirements for the Management and Use of Funds Raised by Listed Companies", "Shanghai Stock Exchange Science and Technology Innovation Board Stock Listing Rules", "Shanghai Stock Exchange Science and Technology Innovation Board Self-discipline Supervision Guidelines No. 1-Standardized Operation" and other relevant laws, regulations, rules and regulatory documents, open special accounts for raised funds, it is used for the special storage and use of the surplus raised funds and over-raised funds invested by the company, and signed a four-party supervision agreement with the sponsor and the bank that deposited the raised funds.

Recently, the company and Huahai Qingke Beijing signed the "Four-Party Supervision Agreement on the Storage of Raised Funds in a Special Account" with the sponsor Guotai Junan Securities Co., Ltd. and the bank that deposited the raised funds.

The specific opening of the special account for the raised funds is as follows:

Account name, account name, bank raised funds, supervision account number as of March 9, 2023

Daily account balance (ten thousand yuan)

Huahai Qingke (Beijing) China Minsheng Bank Co., 638220957 0

Technology Co., Ltd. Beijing Shichahai Sub-branch

Huahai Qingke (Beijing) China Merchants Bank Co., Ltd.

Technology Co., Ltd. Beijing Pilot Free Trade Zone High-end Production 122912514410802 0

Yedi Sub-branch

Huahai Qingke (Beijing) Guangfa Bank Co., Ltd. 9550880238812800142 0

Technology Co., Ltd. Beijing West Third Ring Branch

3. the main contents of the Quadripartite Supervision Agreement on the Storage of Funds Raised in a Special Account

Company (hereinafter referred to as "Party A"), wholly-owned subsidiary Huahai Qingke Beijing (hereinafter referred to as "Party A")

II "), together with Party A, is called" Party A ", respectively, with the bank where the raised funds are deposited (hereinafter referred to as" Party B "),

Guotai Junan Securities Co., Ltd. (hereinafter referred to as "Party C") signed the "Special Account Storage of Raised Funds IV".

Party Regulatory Agreement, the main terms of which are as follows:

1. Party A, in the name of Party A II, has opened a special account for raising funds in Party B (hereinafter referred to as "this

Special account "). This special account is only used for Party A II "Huahai Qingke integrated circuit high-end equipment research and development and industrialization project"

The storage and use of the raised funds shall not be used for other purposes.

The parties shall not set the funds of this account as agreed in this Agreement in any form to any other party entity.

insurance, mortgage, pledge, or set other restrictions on use.

2, A and B should jointly abide by the "the People's Republic of China Bill Law" "payment and settlement measures" "people."

Laws, regulations and rules such as the Measures for the Administration of Settlement Accounts of Minbi Banks.

3. Party C, as the sponsor of Party A, shall appoint a sponsor representative or other worker in accordance with the relevant provisions.

The staff shall supervise the use of the funds raised in Party A's special account.

Party C undertakes to comply with the Measures for the Administration of Securities Issuance and Listing Sponsorship Business and the Guidelines for the Supervision of Listed Companies No. 2.

No.-Regulatory Requirements for the Management and Use of Funds Raised by Listed Companies "," Listing on the Shanghai Stock Exchange's Science and Technology Board ".

The Company's Self-Regulatory Guidelines No. 1-Standardized Operation and other regulations, as well as the fund-raising management system formulated by Party A, perform sponsorship duties and continuously supervise the management of fund-raising matters of Party A.

Party C shall have the right to exercise its supervision by means of on-site investigation and written inquiry. Party A and Party B shall cooperate with Party C's investigation and inquiry. When Party C conducts on-site investigation on the management and use of Party A's raised funds at least every half year, it shall also check the storage and use of this special account.

4. Party A authorizes the sponsor representatives designated by Party C, Tang Wei and Pei Wenfei, other staff members designated by Party C or the replaced sponsor representatives to inquire and copy the information of this special account at any time; The designated personnel of Party C shall inform Party B in advance before going to Party B to supervise and inspect the use of this special account, and abide by the relevant management requirements of Party B's business place to ensure that Party B's normal business order is not disturbed; party B shall cooperate with the supervision of Party C and provide it with the required information about the special account in a timely, accurate and complete manner.

The sponsor representative designated by Party C in this Agreement shall issue his legal identity certificate when inquiring about the relevant situation of this special account to Party B; other staff designated by Party C shall issue his legal identity certificate and unit introduction letter stamped with Party C's official seal and signed by Party C's legal representative or authorized representative when inquiring about the relevant situation of this special account to Party B.

5. Party B shall issue the special account statement to Party A on a monthly basis (before the 5th of each month, in case of legal holidays, it shall be postponed to the next working day) and send a copy to the sponsor representative of Party C. Party B shall ensure that the statement is true, accurate and complete.

6. The accumulated amount withdrawn by Party A from this special account at one time or within 12 months exceeds RMB 50 million yuan.

Or if it reaches 20% of the net amount of the total amount of the issuance proceeds after deducting the issuance expenses, Party A and Party B shall notify the sponsor representative of Party C by e-mail within 5 working days after payment, and provide the expenditure list of the special account.

7. Party C has the right to replace the designated sponsor representative in accordance with the relevant provisions. If Party C replaces the sponsor representative,

Person's identity information and contact information. The replacement of the sponsor representative by Party C shall not affect the validity of this Agreement.

8. If Party B fails to issue a statement to Party A and Party C in time according to this Agreement for three times or notify Party C of the large withdrawal of this special account, and there is no reasonable reason to cooperate with Party C to inquire and investigate the information of this special account, Party A may terminate this Agreement and cancel this special account on its own initiative or at Party C's request.

9. If any party to this Agreement violates the relevant laws and regulations or any provisions under this Agreement and causes losses to other parties, the breaching party shall bear all the liabilities arising therefrom and compensate the breaching party for all direct losses and expenses suffered as a result.

If Party C discovers that Party A and Party B fail to perform this Agreement as agreed, it shall promptly report to the Shanghai Stock Exchange in writing after learning the relevant facts.

10. Any dispute arising under or in connection with this Agreement shall first be settled through consultation between the parties to the dispute. If the dispute cannot be settled through negotiation, the parties to the dispute shall submit it to the people's court with jurisdiction in the place where Party A is located.

11. This Agreement shall take effect from the date on which Party A 1. Party A 2. the legal representative/person in charge of Party B and Party C or their authorized representatives to sign or affix the name seal and affix the official seal of their respective units, and shall expire from the date on which all funds in the special account have been spent and the account has been canceled in accordance with the law.

12. This Agreement shall be made in octuplicate, with Party A 1. Party A 2. Party B and Party C each holding one copy, and one copy shall be submitted to Shanghai Stock Exchange and Tianjin Supervision Bureau of China Securities Regulatory Commission (if necessary), and the rest shall be kept by Party A for standby, each copy shall have the same legal effect.

hereby announce

Huahai Qingke Co., Ltd.

Board of Directors