Skin n Skin Co., Ltd., formerly MBK Co., Ltd. is mainly engaged in the development and manufacturing of organic light-emitting diode (OLED) materials, as well as sublimation equipment. The Company provides OLED materials, dye-sensitized solar cell (DSSC) materials, organic thin-film transistor (OTFT) materials and organic materials based on the organic dyes. Its OLED materials include hole transport layer, hole injection layer, electron transport layer, fluorescent host, green dopant, blue dopant and red dopant. It also provides sublimation equipment, such as vacuum sublimation purifiers. The Company distributes its pharmaceuticals within domestic market and to overseas markets.