The board (the "Board") of directors of Yihai International Holding Ltd. announces that with effect upon the publication of this announcement on 26 March 2024: Mr. Yau Ka Chi has tendered his resignation from the positions as an independent non-executive Director and the chairman of the Audit Committee with effect upon the publication of this announcement on 26 March 2024, due to his desire to devote more time to his personal endeavors. The Board further announces that Ms. Cui has been appointed as an independent non-executive Director with effect upon the publication of this announcement on 26 March 2024. Ms. Cui Jin, aged 66, has over 30 years of professional experience in accounting and auditing. Ms. Cui joined Deloitte as a partner in June 2000 and retired in June 2018, during which she successively held the following significant responsibilities or positions in Deloitte: (i) managing partner of national strategic client, (ii) managing partner (chief accountant) of Beijing branch, (iii) managing partner of Audit II Group of North China and (iv) quality and risk management partner of North China. Ms. Cui had been a member of selection committee for chief executive officer of Deloitte China for two consecutive sessions and a member of selection committee for new partner of Deloitte for several consecutive years in selecting young partners for Deloitte. During her tenure in Deloitte, she also provided auditing services for many listing applicants and listed companies and has accumulated rich experience in listing in mainland China or Hong Kong. Prior
to joining Deloitte, Ms. Cui served as a partner at Zhonggongxin Certified Public Accountants from 1994 to 2000 and the chief financial officer of Youshi Contact Lens Co. Ltd. from 1991 to 1994, and had seven years of experience working at Zhonghua Certified Public Accountants. Ms. Cui has also been serving as an independent director and the chairman of the audit committee of Gaotu Techedu Inc., a technology-driven education company which is listed on the New York Stock Exchange, since September 2021. Ms. Cui has been a Certified Public Accountant in China since January 1995. She is among the first batch of senior members of the Chinese Institute of Certified Public Accountants, possessing extensive experience in the application of international or domestic accounting standards. Ms. Cui obtained her postgraduate degree in accounting from Beijing
Technology and Business University. With effect upon the publication of this announcement on 26 March 2024, Ms. Cui has been appointed as the chairman of the Audit Committee.