TOKO TAKAOKA KOREA Co., Ltd. is a foreign-invested company established by TOKO TAKAOKA  of Japan and Cheongtap of Korea to manufacture gas modifiers, a major device that monitors the power of GIS, an ultra-high voltage substation breaker. It was established to contribute to the development of the domestic power industry by strengthening the overseas export competitiveness of domestic heavy electricity companies by localizing GVT, which had relied on imports, through the capital participation and technology introduction of TOKO TAKAOKA  (Japan's largest electric power company).

-Gas VT for 55kV~550kV GIS (Gas Insulated Switchgear)
-Mold VT for 55kV~77kV C-GIS