| 1880 |
Founded as a cement manufacturing company in 1881 (establishment of Onoda Cement Co., Ltd.) |
| 1880 |
Cement Manufacturing Co., Ltd. (later named Onoda Cement Co., Ltd.) established |
| 1880 |
Establishment of Cement Manufacturing Company (Onoda Cement Co., Ltd.) |
| 1882 |
In 1883 (Meiji 16): Borrowed the government-operated Fukagawa Works cement factory (establishment of Japan Cement Co., Ltd.) |
| 1882 |
Cement plant (later to become Nihon Cement Co., Ltd.) leased from the nationally run Fukagawa Works |
| 1883-11 |
Leased the Government-operated Fukagawa Work Branch Cement Factory (Japan Cement Co., Ltd.) |
| 1915 |
In 1915 (Taisho 4): Acquired the current Kamiiso factory through a merger |
| 1915 |
The current Kamiiso Plant acquired through a merger |
| 1915-04 |
Acquired the current Oiso Factory through merger |
| 1923 |
In 1923 (Taisho 12): Established Chichibu Cement Co., Ltd. |
| 1923 |
Chichibu Cement Co., Ltd. established |
| 1923-12 |
Establishment of Chichibu Cement Co., Ltd. |
| 1932 |
In 1932 (Showa 7): Completion of Fujiwara Factory |
| 1932 |
Fujiwara Plant completed |
| 1932-07 |
Fujiwara Factory Completed |
| 1938 |
1938 (Showa 13): Acquired Tsukumi Factory (now Oita Factory) through merger |
| 1938 |
Tsukumi Plant (currently Oita Plant) acquired through a merger |
| 1938-12 |
Acquired Tsukumi Factory (currently Oita Factory) through merger |
| 1949 |
1949 (Showa 24): Listed on the stock exchange |
| 1949 |
Stock listed |
| 1949 |
Listed on the stock exchange |
| 1955 |
1955 (Showa 30): Saitama Factory completed |
| 1955 |
Saitama Plant completed |
| 1955 |
Completion of Saitama Factory |
| 1962 |
1962 (Showa 37): Kumagaya Factory completed |
| 1962 |
Kumagaya Plant completed |
| 1962 |
Completion of Kumagaya Factory |
| 1972 |
1972 (Showa 47): Acquired all shares of Myojo Cement Co., Ltd. |
| 1972 |
All stock of Myojo Cement Co., Ltd., acquired |
| 1972 |
Acquisition of all shares of Myojo Cement Co., Ltd. |
| 1990 |
1990 (Heisei 2): Acquired California Portland Cement Co., Ltd. (now CalPortland Co., Ltd.) in the United States |
| 1990 |
U.S.-based California Portland Cement Company (currently CalPortland Company) purchased |
| 1990 |
Acquisition of California Portland Cement Company (now CalPortland Company) in the United States |
| 1993 |
1993 (Heisei 5): Established Jiangnan-Onoda Cement Co., Ltd. in China |
| 1993 |
Jiangnan Onoda Cement Co., Ltd. established in China |
| 1993 |
Establishment of Jiangnan-Onoda Cement Co., Ltd. in China |
| 1994 |
1994 (Heisei 6): Chichibu Cement Co., Ltd. merged with Onoda Cement Co., Ltd. to establish Chichibu-Onoda Cement Co., Ltd. |
| 1994 |
Onoda Cement Co., Ltd., and Chichibu Cement Co., Ltd., merged, forming Chichibu Onoda Cement Corporation |
| 1994 |
Merger of Onoda Cement Co., Ltd. and Chichibu Cement Co., Ltd. to establish Chichibu-Onoda Cement Co., Ltd. |
| 1995 |
1995 (Heisei 7): Established Gison Cement Corporation in Vietnam |
| 1995 |
Nghi Son Cement Corporation established in Vietnam |
| 1995 |
Establishment of Gison Cement Corporation in Vietnam |
| 1998 |
1998 (Heisei 10): Merged Chichibu-Onoda Cement Co., Ltd. with Nippon Cement Co., Ltd. to establish Taiheiyo Cement Corporation |
| 1998 |
Chichibu Onoda Cement Corporation and Nihon Cement Co., Ltd., merged, forming Taiheiyo Cement Corporation |
| 1998 |
Merger of Chichibu-Onoda Cement Co., Ltd. and Japan Cement Co., Ltd. to establish Taiheiyo Cement Corporation |
| 2001 |
2001 (Heisei 13): Started Eco-Cement sales and resource recovery project for municipal waste incineration ash (ash water washing system) |
| 2001 |
Sales of Ecocement commenced : Business recycling municipal waste incineration ash (Ash Washing System) started |
| 2001 |
Start of Eco-Cement sales: Initiation of resource recovery project for urban waste incineration ash (ash water washing system) |
| 2002 |
2002 (Heisei 14): Announced 'Self-initiated Action Plan for the Cement Industry for Sustainable Development'; Started AK System operation |
| 2002 |
Cement Industry Voluntary Action Plan for Sustainable Development launched : Operation of the Applied Kiln (AK) System commenced |
| 2002 |
Announcement of 'Self-initiated Action Plan for the Cement Industry for Sustainable Development': Commencement of AK System operation |
| 2009 |
2009 (Heisei 21): Registered ISO 14001 company-wide certification |
| 2009 |
Companywide ISO 14001 integrated certification registered |
| 2009 |
Registration of ISO 14001 company-wide integrated certification |
| 2020 |
2020 (Reiwa 2): Moved headquarters to Koishikawa, Bunkyo Ward |
| 2020 |
Head office relocated to Koishikawa, Bunkyo-ku, Tokyo |
| 2020 |
Relocation of headquarters to Koishikawa, Bunkyo Ward |
