name "Hynix", and merged to SK Group in 2012 when SK Telecom became the major shareholder. The major products are DRAM, flash memory, and many other semiconductor materials. While its headquarter is located at Icheon, Gyeonggido, it also runs a large production line at Cheongju, Chungcheongbuk-do. SK Siltron is the only semiconductor wafer manufacturer in Korea, and it has grown hand in hand with the semiconductor industry over the last 35 plus years. Armed with a record-long history of mass production and accumulated know-how, the company expands its production capacity in a preemptive manner and continues to strengthen its manufacturing and technology competitiveness. At the same time, the company is expanding its business portfolio to include emerging areas such as SiC wafers. This lays a strong foundation for SK Siltron to grow to become one of the world’s best semiconductor materials players both in production volume and profitability. Logistics, Services & Bio SK Biopharmaceuticals () is a drug discovery and drug development company. It discovered solriamfetol. SK pharmteco is a global contract development and manufacturing organization specializing in the production of active pharmaceutical ingredients (APIs), intermediates and viral vectors for cell and gene therapy for the pharmaceutical industry. SK Pharmteco operates six facilities in Europe, North America and Korea. SK Ecoplant is a Korean construction company founded and established in 1977 with a previous name of Sunkyong Construction (Korean: 선경 건설), headquartered in Gwanhun-dong Jongno-gu, Seoul. Its brands include SK View, SK Hub, and Apelbaum. The company's CEO is Ki Haeng Cho. Industries: Oil & Gas, Petrochemical, Power, Environmental Protection, Industrial, Civil, Building, Housing. Services:Feasibility Study, EPC Service, Project Management, Operations & Maintenance. Management system SK's subsidiary companies all operate under the SK Management System (SKMS) which was developed, articulated and enhanced by SK's Chairman, Chey Tae-won. On April 7, 2008, SK Group launched a marketing and management company named "SK Marketing & Company" to pursue Chairman Chey's vision. See also Chaebol Economy of South Korea H.A.V.E. Online Fallen Age References Chaebol Companies listed on the Korea Exchange Conglomerate companies established in 1953 Conglomerate companies of South Korea Electric vehicle battery manufacturers Manufacturing companies based in Seoul Multinational companies headquartered in South Korea Non-renewable resource companies established in 1953 Oil companies of South Korea Petrochemical companies South Korean brands Technology companies of South Korea South Korean companies established in 1953 Manufacturing companies established in 1953