January 7, 1986	HANYANG PETROCHEMICAL COMPANY established.
April 10, 1988	Factory relocated in Ahnyang and activated.
December 1, 1988	Technical cooperation with TOYO INK, Japan.
May 10, 1989	Puff Binder and White Paste production line activated.
February 10, 1990	Plastisol―related products sales initiated
September 4, 1990	Legally registered to export and import.
September 23, 1994	HANYANG PETROCHEMICAL CO., LTD established.
October 12, 1995	Construction of the factory in Sihwa Industrial Complex completed.
November 15, 1995	Sihwa manufacturing line activated.
March 2, 1996	Two plants of Acryl Emulsion on line.
July 22, 1997	A specialized research team installed.
July 27, 1998	The Korea's first textile-printing Thickener developed.
November 27, 1998	Appointed as a designated company for the special military service of professional researchers / skilled industrial workers.
March 31, 1999	The company's research institute established.
November 22, 2000	Appointed as Promising Small/Medium Enterprise in Export Trade.
July 23, 2001	Enlisted as a venture business.
May 15, 2002	New offices and storage utilities constructed.
July 1, 2002	Appointed as Promising Small/Medium Enterprise in Kyounggi-Do.