Aluminium Alloy Business Unit Company Name Sanko Co., Ltd. Sanko Saitama Co., Ltd. Sanko Maibara Co., Ltd. Sanko Japan Co., Ltd. Shinko-Flex Inc. Nagoya Metal Center Co., Ltd.
Precious Metals and Rare Metals Business Unit Company Name Alchem Japan Co., Ltd. AQROFIX Co.,Ltd New Metal Co., Ltd. K-GOLD international Co., Ltd.
Golf Business Unit Company Name Green Dream Co., Ltd. The Forest Country Club Co., Ltd. Bonari Kogen Golf Club Co., Ltd. Ginoza Country Club Co., Ltd. Nihonkai Country Co., Ltd. Ohmurawan Country Co., Ltd. West One’s Co., Ltd. G7 Country Club Co., Ltd. G8 Fuji Country Club Co., Ltd. Adatara Country Club Co., Ltd. Kawashimashadan Co., Ltd. Ocean Golf Club Audience service Co., Ltd. Takarazuka-kogen Golf Co., Ltd.
Others Company Name Metalpha Co. Sanko First Co., Ltd. Tokai Chemical Co., Ltd. KAWARYO PGM Co., Ltd. Nihon Aluminium Rolling Co., Ltd. Hatsuga Genmai Co., Ltd. SJ International Trading(Shanghai) Co., Ltd. Affiliated company Serio Co., Ltd.