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As a manufacturer of heat process equipment which needs electricity as its energy, STI Co., Ltd has developed constantly new materials heating devices such as semiconductor, phosphor, optical materials, ceramics, metals, and exported them to domestic and overseas customers while recently it is expanding its business to hydrogen fuel cell parts which is a green energy business.

Also it developed a method of firing pottery reduction from Korea tradition in the process of developing a state-of-the-art heat technology and patented it. STI’s electric kiln occupies unique position in domestic electric kiln area.