Zeon Corporation buys back shares via ToSTNeT-3

Zeon Corporation announced the completion of a treasury stock acquisition on November 28, 2025, through the Tokyo Stock Exchange's off-auction own share repurchase trading system (ToSTNeT-3). The company repurchased 2,277,900 common shares at an acquisition cost of 3,999,992,400 yen. This move aligns with the company's stated objectives of enhancing shareholder returns and improving capital efficiency.

The acquisition is part of a larger share repurchase program approved by the board of directors on April 25, 2025. This program authorized the acquisition of up to 10 million common shares, representing 5.07% of outstanding shares (excluding treasury stock), with a total value not exceeding 10.0 billion yen.

As of November 28, 2025, Zeon Corporation has cumulatively acquired 6,000,600 shares under this resolution, totaling 9,999,873,650 yen. This demonstrates significant progress towards the maximum approved limits for the share repurchase program.