Securities code: 688538 Securities abbreviation: Hehui Optoelectronics Announcement No.: 2025-004

Shanghai Hehui Optoelectronics Co., Ltd

Regarding the resignation of core technical personnel and the new recognition

Announcement of core technical personnel

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.

Important Content Notes:

Mr. Lin Xinzhi, a core technical officer of Shanghai Hehui Optoelectronics Co., Ltd. (hereinafter referred to as "the company"), resigned from his position for personal reasons and recently completed the resignation procedures. After his resignation, Mr. Lin Shunzhi no longer holds any position in the Company.

Mr. Lin Xinzhi's work has been smoothly handed over, and his departure will not affect the integrity of the company's core technology, will not have a substantial impact on the company's production and operation, and will not have a significant adverse impact on the company's core competitiveness, business development and product innovation.

Based on Mr. Zhang Bin's work experience, the company's core technology research and development needs and his own participation and other relevant factors, the company newly recognized him as the company's core technical personnel.

First, the specific situation of the resignation of core technical personnel

Mr. Lin Xinzhi, the company's core technical personnel, resigned from his position for personal reasons and recently completed the resignation procedures. After his resignation, Mr. Lin Shunzhi no longer holds any position in the Company. The Company and the Board of Directors would like to express their heartfelt gratitude to Mr. Lin Xinzhi for his contribution to the development of the Company.

1. The specific situation of core technical personnel

Lin Xinzhi, male, born in 1981, Taiwan, China, holds a master's degree in electronics from National Sun Yat-sen University. In 2005

Until 2010, he served as an engineer in the process integration department of Rhenium Technology Co., Ltd.; From 2010 to 2012,

Deputy Manager of the Engineering Department of Taiwan Sun Sea Technology Co., Ltd.; From 2012 to June 2022, he served in the company

Deputy Minister of R&D, Minister of R&D. Since June 2022, he has served as the deputy general director and R&D director of the company's first phase product line, responsible for the development and production management of the company's first phase product line.

2. Patents

During his tenure in the Company, Mr. Lin Xinzhi participated in the application of patents for service inventions, and the ownership of the patents belongs to the Company, and there are no disputes or potential disputes involving service inventions, and his resignation does not affect the integrity of the Company's patent ownership.

3. Confidentiality and whereabouts

According to the "Confidentiality Agreement" signed between the Company and Mr. Lin Xinzhi, it is agreed that during the existence of the employment relationship and after the termination of the employment relationship, the company's business, technology, marketing, finance and other business management information shall be kept safe. Upon separation of service, return all documents, files, drawings, notes, manuals, specifications, designs, devices, computer disks, tapes, materials and equipment, computer equipment and other property, together with any materials containing or disclosing any confidential information in any form.

According to the Letter of Commitment for the Resignation of Core Technical Personnel signed by Mr. Lin Xinzhi, unless the prior written consent of the Company is obtained, he shall not accept the employment or service of any natural person, legal person or other economic organization that competes with the Company or operates similar business within two years after his resignation (including but not limited to serving as a shareholder, partner, director, supervisor, manager, agent, consultant, etc., and does not do any part-time work); Do not produce, operate, develop similar products or provide similar services by yourself; Do not directly or indirectly invest in the establishment of legal entities to produce, operate, research and develop similar products or engage in similar businesses. Without the written consent of the Company, it will never disclose, publish, publish, impart, transfer or otherwise make the Company's trade secrets known to any third party (including other employees of the Company who are not aware of the secrets); We will not use the trade secrets that we know or hold during our employment with the Company that are proprietary to the Company for any third party or for their own benefit.

As of the disclosure date of this announcement, the Company has not found that Mr. Lin Xinzhi went to work for competitors or violated confidentiality agreements and commitments.

2. Identification of new core technical personnel

Based on Mr. Zhang Bin's work experience, the company's core technology research and development needs and his own participation and other relevant factors, the company newly recognized him as the company's core technical personnel. The details are as follows:

Zhang Bin, male, born in 1982, Chinese nationality, master of engineering, senior engineer. 2008 to 2011

Served as the chief engineer of OLED product design of Rainbow Group; From 2011 to 2013, he served as the first one in Nanjing

Engineer in charge of evaporation of Mechatronics Co., Ltd.; Since 2013, he has worked in Shanghai Hehui Optoelectronics Co., Ltd., and has successively served as R&D director-level engineer (level 1), deputy director of R&D No. 4, deputy director of organic film-forming plant, acting director of organic film-forming plant No. 1, director of organic film-forming plant No. 1, deputy general director of the first phase of the product line and director of the first module factory, and deputy director of the first phase of the product line (presiding over the work); Since April 2023, he has served as the deputy general manager of the company, responsible for the company's production management and research and development of production process technology.

As of the disclosure date of this announcement, Mr. Zhang Bin held 475,000 shares of the company, of which 210,000 shares

The shares granted under the Company's 2021 restricted stock incentive plan but have not yet been released. Mr. Zhang Bin has no relationship with shareholders holding more than 5% of the company's shares and other directors, supervisors and senior managers of the company, and meets the qualifications required by relevant laws, regulations and normative documents.

3. Impact on the company

Through long-term technology accumulation and development, the company has established a complete core technology system, and has a team of technical talents based on international advanced R&D concepts and focusing on the independent R&D and innovation of AMOLED semiconductor display panels. Team members have their own responsibilities and ultimately a collective outcome, and there is no specific core

Single dependency of technicians. As of December 31, 2024, the company has a total of 1,412 technicians.

The proportion of the total number of employees is 40.70%, of which: 383 have a master's degree or above (19 have a doctor's degree), accounting for 27.12% of the technical personnel; There were 993 personnel with bachelor's degree, accounting for 70.33% of the technical personnel.

As of the disclosure date of this announcement, the company's other core technical personnel have not changed, and the personnel are stable. There are 10 core technical personnel in the company, namely: Liu Huiran, Chen Zhihong, Zhang Bin, Zou Zhongzhe, Xu Liang, Wang Junmin, Liang Yinan, Hao Haiyan, Li Yanhu and Yang Donglun.

In summary, the resignation of Mr. Lin Xinzhi will not affect the integrity of the Company's core technology, will not have a substantial impact on the Company's production and operation, and will not have a material adverse impact on the Company's core competitiveness, business development and product innovation.

Fourth, the measures taken by the company

At present, Mr. Lin Xinzhi has completed the handover with the company's technical team, and the company's production and operation continue to be stable. At present, the company's technical team structure is complete, the reserve personnel are sufficient, and the existing technical team and core technical personnel can support the continuous development of the company's core technology in the future.

The announcement is hereby made.

Board of Directors of Shanghai Hehui Optoelectronics Co., Ltd

February 15, 2025