History

Kawasaki Cement plant Asano Cement Co., Ltd. (later to become Taiheiyo Cement Co., Ltd.) completed

Daiichi Cement Co., Ltd. established

Daiichi Concrete Co., Ltd. established

Chuo Shoji Co., Ltd. Established

Yoshino Plant completed

Daiichi Cement Co., Ltd. and Chuo Shoji Co., Ltd. merge, forming DC Co., Ltd.

Capital participation in Miyoshi Shokai Co., Ltd.

Capital participation in Ebata Co., Ltd.

Capital participation in Daito Hida Concrete Kogyo Co., Ltd., which became a consolidated subsidiary

Capital participation in Ebata Co., Ltd., which became a consolidated subsidiary

Capital participation in Fujisawa Namakon Co., Ltd.

Kunimiyama Shigen Co., Ltd. Established

Noda Namakon Co., Ltd. becomes a consolidated subsidiary

By integrating subsidiaries, DC Chiba Shigen Co., Ltd. established

Capital participation in Daikoku Sangyo Co., Ltd.

Became a wholly owned subsidiary of Taiheiyo Cement Co., Ltd. through share exchange