Sejong Materials is the only company in Korea in the LED lighting and TV back light metal PCB industry capable of manufacturing from raw materials to the PCB finished products. It is equipped with LED vertical integration manufacturing system, which leads to product quality and price competition. Sejong Materials and Sekisui Chemical, known as a high performance plastics company, entered into a technical cooperation agreement. With high performance pre-preg technology, Sejong has begun manufacturing goods having enhanced thermal conductivity and excellent heat dissipation grade while maintaining insulation.Specialized in coating and processing Aluminum plates, Sejong makes a variety of Aluminum exterior materials like TV bezel, battery cases, electric appliance cases and others for Samsung Electronics and Panasonic.With No.1 market share in metal PCBs and MCCL, Sejong Materials has gained a reputation as a reliable, dependable supplier.Metal PCBs - PCB bars for various thickness and types of BLUs (Back Light Unit)- All-in-one type of heat sink and PCB, showing excellent heat radiation- Three-dimensional type BLU bending PCB- LED chip mounted on Aluminum directly in COB (Chip On Board) type ? PCB maximizing heat prevention- Large sized-lighting PCB made with LED Electronic Board- Various lighting PCBs for luminaries MCCL (Metal back Copper Clad Laminate)MCCL Certificates of major LED manufacturers;Samsung LED ? Approved for 2011? Model LED Monitor- Approved for 2012? Sony Model (Japan) Lumens- Approved for 2011? Model LED Monitor- Approved for 2012? Samsung Electronics Visual Display Part- Approved for 2012? Sony Model (Japan) - Approved for 2011? GA Model (China) Seoul Semiconductor- Approved for 2012? LG Display 42?, 47? Model - Approved for 2011? Sky Works (China)PCM (Pre-Coated Metal)- Metal Frame (used for Home Appliances): Samsung Electronics, LG Electronics, Panasonic