CHOISANGHO CORP. Increases Stake in OPTRONTEC by 67,000 Shares to 28.14% via Open Market Purchase

CHOISANGHO CORP. acquired an additional 67,000 common shares of OPTRONTEC through open market purchase on June 26, 2026 at a price of 1,374 KRW per share.
This acquisition increased the filer's ownership of specific securities to 28.14% and common share ownership to 17.56%.
The transaction represents a minor increase in stake by an existing major shareholder with no new capital raised or dilution effect.
[AI Summary]The small open market purchase by CHOISANGHO CORP. may signal management confidence or value buying, but the impact on stock price is limited due to the minimal change relative to total shares outstanding. The report is a routine ownership disclosure with no identified investment risks.