◎History

1967	DAH SHYANG CHEMICAL CO., LTD is established (Parent of CORE UNION CHEMICAL CORP.) Franchise the pesticide and Emulsifier of Sanyo Chemical Co., Ltd Franchise the dyeing auxiliaries of Rakuto Kasei Ind Co., and the dyestuff of Kiwa-Chemical Co., Ltd.
1968	The first factory established in Yangmei (Area of Land about 6,300 sq. meter) Rakuto Kasei Ind Co., Ltd. and Kiwa-Chemical Co., Ltd. provide technical support
1969	Sanyo Chemical Co., Ltd provides technical support of dyeing auxiliaries
1984	The second factory established in Yangmei (Area of Land about 10,000 sq. meters) Taiyo Seal Pack Co., Ltd. provides technical support of fiber drum
1987	Sanyo Chemical Co., Ltd invest NTD 20,000,000 DAH SHYANG joint - venture company is established
1988	Sanyo Chemical Co., Ltd provides technical support of resin equipment and Factory building
1992	Add a set of Resin Automatic Reaction Equipment (15T)
1996	Add a set of High temperature Automatic Reaction Equipment (20T)
2000	Obtained ISO9002 certification
2001	Add High/medium/low temperature Automatic Reaction Equipment (3T-2sets, 10T-2sets, 20T-1set)
2002	Obtained ISO9001 version convert certification
2003	Add a set of Large Automatic High Speed Emulsifing machine (16T)
2004	Add a set of Automatic Production equipment (12T)
2005	Deal with the land of first factory Add large material infrastructure (1000T)
2006	Reconstructed staff canteen and sanitary equipment
2007	Reconstructed staff canteen and sanitary equipment completely
2009	Updated all the Pipeline of outside factory ISO 14000 education training/process documented, and Complete certification at the end of the year
2013	Management rights DAH SHYANG CHEMICAL CO., LTD is transferred
2014	Changed the name of DAH SHYANG CHEMICAL CO., LTD into CORE UNION CHEMICAL CORP.