#NGKInsulatorsLtd

Between December 1 and December 31, 2025, 453,300 shares of treasury stock were acquired at a total cost of 3,068,076,885 yen. Based on the Board of Directors resolution dated October 31, 2025, the cumulative number of shares acquired totals 1,125,500 shares, with an acquisition cost of 7,497,022,074 yen.

NGK Insulators, Ltd. acquired 859,100 shares of treasury stock between December 1, 2025 and December 23, 2025, with a total acquisition value of 2,858,810,095 yen, completing the acquisition based on the board resolution dated July 31, 2025.