Choi Jae ho Raises Stake in Clean & Science to 7.73% From 7.69%

Director Choi Jae ho raised his Clean & Science stake to 7.73% from 7.69%, holding 502,582 shares. He purchased 1,931 common shares on Oct. 14, 2026, at KRW 3,190 each. A further 651 common shares were purchased on Oct. 15, 2026, at KRW 3,175 each. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Clean & Science Co. Ltd. published the original content used to generate this news brief via DART, the regulatory disclosure system operated by the South Korea Financial Supervisory Service (FSS) (Ref. ID: 20261016000047), on October 16, 2026, and is solely responsible for the information contained therein. (C)