#NGKSparkPlugCoLtd

Between March 1 and March 31, 2026, the Company acquired 103,600 of its common shares at a total cost of 777,218,500 yen. The cumulative number of shares acquired reached 2,196,300 shares, with a cumulative acquisition cost of 14,998,876,872 yen.

Acquired 174,300 shares of common stock for a total of JPY 1,222,219,900 from February 1 to February 28, 2026. Cumulative acquired shares totaled 2,092,700 shares with an acquisition cost of JPY 14,221,658,372.

On April 1, 2026, Mr. Keiji Suzuki will assume the position of Representative Director and President, and Mr. Takashi Kawai will become Chairman of the Board. Mr. Shinichi Odo is expected to resign as director following the annual shareholders meeting in June and assume the role of advisor.

Acquired 792,900 shares of treasury stock totaling ¥5,502,416,398 from January 1 to January 31, 2026. Cumulative shares acquired total 1,918,400 shares, with a cumulative amount of ¥12,999,438,472.