- Sekyung Corporation
- High Purity Fused Magnesite,Fused Alumina,Penolic Resin,Talc Lump / Powder,Dead Burned Magnesite,Ferro Manganese,Ferro Nickel Chrome,Caustic Calcined Magnesite,Refractory,Seawater Magnesia Clinker,Silico Manganese.
- Address:256-13,Rm1108, Jeil B/D,Gongdeok 2-dong ,Mapo-gu
- Dastech. Inc.
- Zirconia (Fused Stabilized Zirconia),Magnesia (MgO-C Brick),Hermetic Glass Powder,Antistatic Packing Bag,Sapphire Single Crystal,Fused Magnesia,Epi Wafer, HB Blue LED,Magnesia (MgO Heater Element),Magnesia (Fused Magnesia),MgO Heater Element,Polycite (Ser.
- Address:Yeoksam 1-dong ,Gangnam-gu
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