1881 Foundation of “Cement Manufacturing Co.” in Yamaguchi prefecture (named “Onoda Cement Co.” later) 1883 Leasing of Government Cement Plant to start production of cement (leading to foundation of Asano Cement Co.) 1923 Foundation of Chichibu Cement Co. 1947 Renaming of Asano Cement Co. to Nihon Cement CO. 1994 Merger between Onoda Cement and Chichibu Cement into Chichibu Onoda Cement Corp. 1998 Merger between Chichibu Onda Cement Corp. and Nihon Cement Co. into TAIHEIYO CEMENT CORP. 1999 Certification of ISO14001 at all plants 2000 Jan. Commencement of new cement sales system Aug. Purchasing of PNG-Taiheiyo cement company,Papua New Guinea Sep. Capital participation and co-management into Ssangyong Cement Industrial Co., Ltd. Korea Sep. Acquisition of Majority Control of Taiheiyo Cement Philippines Nov. Inauguration Ceremony of Nghi-Son Cement Vietnam 2001 Apr. Marketing start of Ecocement 2002 Nov. Operation start of Applied Kiln System (AK system) 2004 Apr. Management and Organization Reforms 2009 May Relocate Head Office to Minato ward An early "Tategama" of Onoda Cement Corporation (registered as important cultural property) The first plant in Japan to manufacture Portland Cement which was operated by the government in 1883. Later was named as Fukagawa Plant of Nihon Cement. Chichibu Cement's No. 2 Plant was nominated as architectural heritage by DOCOMOMO20 JAPAN*. *Documentation and Conservation of buildings, sites and neighborhoods of the Modern Movement Tokyo Service Station