■中古高級ブランド品の卸売・小売(国内・海外)
■ジュエリー・貴金属の販売
■書道教室の運営・指導
■ Wholesale & Retail of Pre-owned Luxury Goods (Domestic & International Markets)
■ Jewelry & Precious Metals Trading
■ Japanese Calligraphy Education (School Operation & Instruction)