Watahan & Co., Ltd. is a diversified retail and construction conglomerate headquartered in Nagano Prefecture, Japan, operating primarily through three segments: Retail, Construction, and Trading. The Retail segment operates Super Centers, Home Centers, food supermarkets, drug stores, and e-commerce platforms (including PC Bomber for electronics and appliances), pursuing an EDLP strategy with vertically integrated fresh food sourcing including direct fishing port procurement and its own farm (Watahan Farm). The Construction segment encompasses wooden housing construction and franchise networks (500+ member stores), structural steel fabrication, building renovation using proprietary WK Cover Method, self-propelled multi-story parking structures, and interior/exterior construction works. The Trading segment handles import and sale of pharmaceutical raw materials (e.g., acetaminophen, nitroglycerine) and chemical raw materials, as well as manufacturing of HMG (gonadotropin) active pharmaceutical ingredients.