Milestones

Milestones

1961 Founded the company in Taipei.

1964 Established a plant in Toufen.

1965 Sulfuric acid and ammonium sulfate production began in Toufen Plant.

1967 Operations of the sulfuric plant II began.

1969 Operations of the sulfuric plant III began.

1974 Operations of the sulfuric plant V began.

1974 Built the calcium superphosphate factory.

1977 Built the NPK fertilizer factory.

1978 Operations of the sulfuric plant VI began.

1984 Built the dimethyl ether (DME) and dimethyl sulfate (DMS) factories.

1984 Built the sodium hydrosulfite and zinc oxide factories.

1990 Hakusui Tech of Japan became our major institutional investor.

1996 Built the sodium zirconia silica factory.

1998 Built the first electronics grade sulfuric acid factory in collaboration with Mitsubishi Chemical of Japan.

2000 Built the new-generation NPK fertilizer factory through technological cooperation with Mitsui Toatsu Chemicals of Japan.

2009 Hakusui Tech of Japan withdrew its investments and CoreMax became a new institutional investor of Heng-I.

2013 Built the second electronics grade sulfuric acid factory in collaboration with Mitsubishi Chemical of Japan.

2014 Built the third electronics grade sulfuric acid factory in collaboration with Mitsubishi Chemical of Japan.

2014 Crossed into the recycling business to reclaim and recycle waste solution of sulfuric acid and waste ammonia sulfate.

2014 Operations of the sulfuric plant VIII began.

2015 Passed the certification of the ISO9001:2008 Quality Management System.

2015 Passed the certification of the OHSAS18001:2007 Occupational Health and Safety Assessment System.

2015 Passed the certification of the TOSHMS CNS25506:2011 Taiwan Occupational Safety and Health Management System.

2017 Passed the certification of the ISO14001:2015 Environmental Management System.