Since its founding, the company has been involved in the processing, construction, and sales of tombstones and stone products, and has also expanded into architectural stone materials such as monuments and interiors. Tombstones account for 80% of its sales. The head office factory handles stone processing, and the company has stores in Osaka Prefecture and Kobe City. A tombstone exhibition hall, "Stone Optic," has also been opened near the head office, creating an environment where people can easily visit and see the products. What the company has consistently maintained since entering the market later than others is the disclosure of information to customers. In the past, there was insufficient information in the industry, including pricing, and customers who rarely buy tombstones had few opportunities to learn about market prices and quality. Therefore, in addition to displaying prices and origins, the company actively holds exhibitions, seminars, and consultation sessions.