Tokyo Gas Company, Limited (English. Tokyo Gas Company, Limited; Japanese: とうきょうガス), Japan's largest natural gas supplier, was founded in October 1885, mainly for Kyoto, Kanagawa, Sapporo, Chiba, Ibaraki, Tochigi, Gunma, Yamanashi, Negishi, Chiba and Nagano, etc. to provide city gas, industrial and residential gas and appliances supply and sales, as well as regional refrigeration and heating The company also provides district cooling and heating systems and electricity supply.