Donghua Technology: Deputy General Manager Chen Zhirong left his position due to a transfer, holding 150,000 shares.

East China Technology announced that on April 20, 2026, the Board of Directors received the written resignation report from Vice General Manager Chen Zhirong, who has been transferred to work for the controlling shareholder, China Chemical Engineering Co., Ltd. Chen Zhirong applied to resign from the position of Vice General Manager, and the resignation will take effect from the date of delivery to the Board of Directors. Chen Zhirong's original term was until April 28, 2027. As of the date of the announcement, he held 150,000 shares of the company and has promised to follow the share lock-up requirements after leaving. He has already completed the handover of work, and his resignation will not affect the normal operation of the company.