Riken Technos to repurchase shares via ToSTNeT-3 on November 21

Riken Technos Corporation will conduct an off-auction treasury share repurchase (ToSTNeT-3) on November 21, 2025, to acquire up to 90,000 common shares. The purchase will be executed at yen 1,359 per share, the closing price on November 20, 2025. This repurchase is part of a broader resolution passed on October 31, 2025, authorizing the acquisition of up to 1,500,000 common shares totaling yen 2,000,000,000 between November 7, 2025, and January 31, 2026.

As of November 20, 2025, the company has already acquired 1,300,000 shares for a total of yen 1,740,700,000 under the existing resolution. The results of the upcoming ToSTNeT-3 transaction will be announced after 8:45 a.m. on November 21, 2025. The company stated that the number of shares for this specific transaction will not change, though the acquisition may not be fully executed depending on market conditions.