YMT Co., Ltd. engages in the development and sale of chemical and electronic materials in South Korea and internationally. The company offers final surface treatment; electroless and electrolytic copper plating; process/display; thin copper foil for use in EMI shielding, FCCL, and radiating films; and gold surface and post dry etch cleaners, and gold and Cu etchants. It serves mobile and tablet, automobile, electronic device, wearable device, and bio and medical industries. The company was formerly known as Youil Material and Technology Co., Ltd. and changed its name to YMT Co., Ltd. in July 2006. YMT Co., Ltd. was founded in 1999 and is headquartered in Incheon, South Korea.