• Clean & Science director Choi Jae ho increased his stake to 8.04% from 7.73%, bringing his holdings to 522,582 shares.
• He purchased 20,000 common shares on the market at KRW 3,190 each on October 19, 2026.

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: 20261023000090), on October 23, 2026, and is solely responsible for the information contained therein.