Seok-Mo Yang

Dongsung Holdings Co., Ltd. engages in the management of its subsidiaries. It manufactures polyurethane, petrochemical, insulation, gas, medical supplies, plastic products, and real estate leasing. The company was founded on May 1, 2008 and is headquartered in Busan, South Korea.

Dongsung Highchem Co., Ltd. engages in the production and marketing of the chemical products. Its product portfolio consists of petrochemical and performance solvents, including paraffin solvents, naphthenic solvents, aliphatic solvents and de-aromatic solvents used for manufacturing clearing agents, thinning agents, rubber release agents and tires; functional solvents, such as de-aromatic solvents, aromatic solvents, ketone solvents, glycol solvents and monomer solvents imported from Exxon Mobile Chemical; organic peroxides, including polymerization initiators and organic peroxides used in shoes and automobile industries; polyurethane, such as thermoplastic polyurethanes (TPUs) for coating and adhesion, and coatings for mobile phones. The company was founded on August 23, 1978 and is headquartered in Seoul, South Korea.