The industrial materials maker SKC launched SKC Lighting , a light - emitting diode maker , on Wednesday . The new subsidiary was formed by merging the LED makers Sumray Corp . and Dooyoung . SKC entered the LED market by acquiring Sumray in January 2010 , and acquired Dooyoung in April . At the launch ceremony SLC Lighting chief executive Lee Hak - hee said that the company aims to become one of the world ’ s five largest LED lighting manufacturers by 2020 . SKC said that the new subsidiary would mainly produce key LED components including switched - mode power supply units , lenses and heat radiating materials . The company added that SKC Lighting will also collaborate with small and medium - sized enterprises in research and development , and in expanding into overseas markets as part of its ongoing efforts to support smaller firms . In June the company and the Korea LED Association signed an agreement with Japan ’ s Decoration LED Lighting Spread Association to collaborate in developing the LED industry . The company said that it is currently working on a 10 billion won ( $ 9 . 3 million ) deal to export local SMEs ’ LED products to Japan . By Choi He - suk ( cheesuk @ heraldm . com )