InnoScience (Suzhou) Technology Holding Co., Ltd. — Director's Dealing 2026

Jan 21, 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.

Innoscience. 英诺赛科

InnoScience (Suzhou) Technology Holding Co., Ltd.

英諾賽科(蘇州)科技股份有限公司

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

(Stock Code: 2577)

VOLUNTARY ANNOUNCEMENT

VOLUNTARY LOCK-UP UNDERTAKING GIVEN BY A DIRECTOR

This announcement is made by InnoScience (Suzhou) Technology Holding Co., Ltd. (the "Company") on a voluntary basis.

The Company has received a letter of commitment (the "Lock-up Undertaking") issued by Dr. Weiwei Luo ("Dr. Luo"), chairperson of the board of directors and executive director of the Company and a member of the controlling shareholders group. Pursuant to the Lock-up Undertaking, Dr. Luo undertakes not to reduce her beneficial interests of 154,705,540 shares of the Company (including 77,352,770 domestic unlisted shares and 77,352,770 H shares) within 12 months commencing from January 22, 2026.

Reference is made to the prospectus of the Company dated December 18, 2024. Dr. Luo is the ultimate general partner of Shanghai Inno Youpeng Enterprise Consulting L.P. ("Inno Youpeng"), the ultimate general partner of Suzhou Innocore Enterprise Management Center L.P. ("Innocore"), the controller of Inno Investment (Hong Kong) Limited ("Inno HK"), and the general partner of Suzhou Wujiang District Xinsheng Dapeng Equity Investment Partnership (Limited Partnership) ("Xinsheng Dapeng"). All limited partners of Inno Youpeng are independent third parties. Innocore, Inno HK and Xinsheng Dapeng are employee shareholding platforms established under the pre-IPO share plan of the Company. The limited partners of Inno Youpeng, Innocore and Xinsheng Dapeng and the preferred shareholders of Inno HK (other than Dr. Luo), sell the shares of the Company on a voluntary basis pursuant to the partnership agreements and/or the pre-IPO share plan, which is not related to Dr. Luo.

The Lock-up Undertaking is based on Dr. Luo's full confidence in the future development of the Company and full recognition of its long-term investment value. The Company firmly believes that, against the backdrop of the global energy structure transformation and the revolutionary improvement of energy efficiency, GaN power chips, with their outstanding characteristics of high frequency, high efficiency and high power density, will play a disruptive role in key fields such as new energy vehicles, data centers, industrial energy storage, humanoid robots and consumer electronics, boasting extremely broad market prospects. The Lock-up Undertaking of Dr. Luo will be conducive to the sustained, stable and sound development of the Company.

---

Shareholders and potential investors of the Company are advised to exercise caution when dealing in the securities of the Company.

By order of the Board
InnoScience (Suzhou) Technology Holding Co., Ltd.
英諾賽科(蘇州)科技股份有限公司
Dr. Weiwei Luo
Chairperson of the Board and Executive Director

PRC, January 22, 2026

As at the date of this announcement, the Board of the Company comprises Dr. Weiwei Luo, Mr. Jay Hyung Son, Dr. Wu Jingang and Mr. Zhong Shan as executive directors; Dr. Wang Can, Ms. Zhang Yanhong and Ms. Cui Mizi as non-executive directors; and Mr. Wong Hin Wing, MH, JP, Dr. Yi Jiming, Dr. Yang, Simon Shi-Ning and Dr. Chan, Philip Ching Ho as independent non-executive directors.

2