Report on Ownership of Specific Securities by Executives and Major Shareholders - 5:1 Reverse Stock Split Completed

This report discloses changes in ownership of specific securities due to completion of a 5:1 reverse stock split (capital reduction).
Ratio: 5 common shares → 1 common share (par value maintained at 500 won).
Effective date: Date of capital reduction effect.
Reporting persons are executives and major shareholders; share count and ownership percentage changed due to the reverse split.
This is a mandatory disclosure following capital reduction; no actual trading or disposal by insiders.

Filing: Report on Ownership of Specific Securities by Executives and Major Shareholders
Company: T Scientific (057680)
Submission: Yu Seung-jae
Receipt: 05-08-2026