Hyosung Chemical: Cho Hyun-joon lifts stake to 13.04% from 13.02%

Cho Hyun-joon increased his Hyosung Chemical holding to 494,556 shares (13.04%) as of Sept. 29, 2026, up from 493,656 shares (13.02%) reported Aug. 6, driven by an on-market purchase at KRW 52,052 per share.