Stock-related Information

(as of March 31, 2026)

Total Number of Shares Authorized

150,300,000

Number of Issued Shares

44,898,730

Number of Shareholders

32,931

Major Shareholders

(as of March 31, 2026)

Name Number of shares owned Voting rights retio
Nippon Steel Corporation 11,592,932 26.68%
Hideichiro Takashima 4,347,460 10.00%
The Master Trust Bank of Japan, Ltd. (trust account) 2,671,400 6.15%
Akihiko Takashima 2,233,000 5.14%
Mitsui & Co., Ltd. 1,470,000 3.38%
Godo Steel, Ltd. 1,347,000 3.10%
The Custody Bank of Japan, Ltd.
(Air Water Inc. retirement benefit trust account)		 1,308,900 3.01%
The Custody Bank of Japan, Ltd.
(Air Water Safety Service Inc. retirement benefit trust account)		 692,000 1.59%
Air Water Inc. 691,500 1.59%
The Custody Bank of Japan, Ltd. (trust account) 689,000 1.59%

Note: Calculations of share ownership ratios exclude treasury stock (1,439,844 shares).

Composition of Shareholders

as of March 31, 2026 (Unit：Shares）
Composition of Shareholders
Financial Institutions 6,526,500
Securities Companies 497,166
Other Domestic Corporations 18,437,411
Foreign Investors 5,562,279
Individuals & Others 12,435,530
Treasury Stock 1,439,844