ContiOcean Environment Tech Group Co., Ltd. — Board/Management Information 2026

Jun 1, 2026

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

ContiOcean

上海匯舸環保科技集團股份有限公司

CONTIOCEAN ENVIRONMENT TECH GROUP CO., LTD.

(A joint stock company incorporated in the People's Republic of China with limited liability)

(Stock Code: 2613)

(1) RESIGNATION OF EXECUTIVE DIRECTOR AND CHIEF FINANCIAL OFFICER;

(2) APPOINTMENT OF ACTING CHIEF FINANCIAL OFFICER; AND

(3) CHANGE IN COMPOSITION OF REMUNERATION COMMITTEE

RESIGNATION OF EXECUTIVE DIRECTOR AND CHIEF FINANCIAL OFFICER

The board (the "Board") of directors (the "Director(s)") of ContiOcean Environment Tech Group Co., Ltd. (the "Company", together with its subsidiaries, the "Group") announces that Mr. Shu Wa Tung, Laurence ("Mr. Shu") has resigned as an executive Director and the chief financial officer of the Company, and as the chief financial officer of ContiOcean Environment Tech Co., Limited and Wavelength Technology Center, LDA respectively, all with effect from 1 June 2026, in order to devote more time to his other work and personal commitments. Upon his resignation, Mr. Shu will cease to be a member of the remuneration committee of the Company (the "Remuneration Committee").

Mr. Shu has confirmed that he has no disagreement with the Board and there is no matter relating to his resignation that needs to be brought to the attention of The Stock Exchange of Hong Kong Limited (the "Stock Exchange") and the shareholders of the Company (the "Shareholders").

The Board would like to take this opportunity to express its appreciation for the contribution of Mr. Shu to the Group during his term of service.

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APPOINTMENT OF ACTING CHIEF FINANCIAL OFFICER

The Board is pleased to announce that Ms. Shen Xiaojiao (“Ms. Shen”), the general manager of the finance department of the Company, has been appointed as the acting chief financial officer of the Company with effect from 1 June 2026. The biographical details of Ms. Shen are set out as follows:

Ms. Shen Xiaojiao (申小嫡), aged 32, joined the Group as a deputy manager of the finance department of the Company on 19 July 2021, and was appointed as the general manager of the finance department of the Company on 4 April 2023. Ms. Shen is responsible for overseeing financial planning and strategy, managing financial risk, supervising financial reporting, and ensuring the Company’s financial health and compliance with regulations.

Ms. Shen has over eight years’ experience in auditing and accounting. Prior to joining the Group, Ms Shen worked at Ernst & Young Hua Ming LLP Shanghai Branch from September 2016 to May 2021, first as an auditor and subsequently as a senior auditor, where she was primarily responsible for audit work.

Ms. Shen obtained her bachelor’s degree in International Economics and Trade from the University of International Business and Economics in Shanghai in June 2016. She also obtained her Certified Public Accountant (“CPA”) qualification in December 2019, awarded by the CPA Examination Board of the Ministry of Finance of China.

As at the date of this announcement, Ms. Shen holds 47,600 share options under the Pre-IPO Share Option Scheme of the Company which came into effect on 27 July 2024. Save for the current emolument as general manager, Ms. Shen will not receive any emolument as acting chief financial officer or enter into any service contract regarding her appointment as acting chief financial officer.

Save as disclosed above, as at the date of this announcement, Ms. Shen (i) does not hold and has not held any other position with the Group; (ii) does not hold and has not held any directorships in listed public companies in the past three years or other major appointments and professional qualifications; (iii) does not have any relationship with any Directors, senior management, substantial or controlling shareholders of the Company; and (iv) does not have any other interests in the shares of the Company within the meaning of Part XV of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong). Save as disclosed above, there is no other matter relating to the appointment of Ms. Shen as an acting chief financial officer that needs to be brought to the attention of the Shareholders and there is no other information which is required to be disclosed pursuant to Rule 13.51(2)(h) to (v) of the Rules Governing the Listing of Securities on the Stock Exchange.

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CHANGE IN COMPOSITION OF REMUNERATION COMMITTEE

Upon the resignation of Mr. Shu as an executive Director, Mr. Shu will cease to be a member of the Remuneration Committee. In place of Mr. Shu, Mr. Zhao Mingzhu, an executive Director, has been appointed as a member of the Remuneration Committee with effect from 1 June 2026. Upon completion of the above change, the members of the Remuneration Committee are as follows:

Chairperson: Dr. Guan Yanmin

Members: Mr. Zhao Mingzhu, Mr. Zhu Rongyuan

The composition of the other Board committees remains unchanged.

By order of the Board

ContiOcean Environment Tech Group Co., Ltd.

Zhou Yang

Chairman and Executive Director

Shanghai, PRC, 1 June 2026

As of the date of this announcement, the Board comprises: (i) Mr. Zhou Yang, Mr. Zhao Mingzhu, Mr. Chen Zhiyuan and Mr. Chen Rui as executive Directors; and (ii) Dr. Guan Yanmin, Mr. Zhu Rongyuan and Ms. Ng Sin Kiu as independent non-executive Directors.

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