1996 . 09	Hua Jeng Chemical Industrial Co., Ltd was founded
1997 . 01	Got the constructing permission of building industrial plants at Ming Hsiung Ind Dist.
1997 . 08	Finished building industrial plants (Phase 1)
1997 . 09	Started manufacturing EPS (Capacity:21,600T/MT)
1998 . 08	Expanded plants (Phase 2)
1998 . 11	Completed expanding construction (Capacity:36,000T/YR)
2002 . 09	Manufacturing Flame Retardant EPS and Low pentane EPS
2005 . 09	Completded second expanding construction (Capacity:36,000 T/YR)
2006 . 05	New EPS Block plants finished building
2007 . 12	EPS FOOD GRADE expanding construction (Total capacity:42000T/YR)
2010 . 09	Obtain "Small Business Innovation Research" Project
2011 . 01	Mass production by EPS FOOD GRADE #808CS
2011 . 09	Start constructing Liouying Plant
2012 . 07	Finished building Liouying Plant (Capacity: 4000T/YR)
2013 . 06	New High-Strength Grade #SHAPS mass production
2014 . 06	Began to integrate EPS foam cups industry and the community to discuss EPS Styrofoam cup environmental subjects in Taiwan
2015 . 08	“Biodegradable EPS food grade, Bio-Greenpor #HGP” Researching successful
2019 . 07	Chenggong warehouse start running