- Field Stone / Why Group
- Total Capitol: 480,000,000 Yen
- Total Employees: 200
- Business Details: Bags, pet goods planning, production and wholesale distribution
- Why Co. , Ltd.
- Established: July 1971
- Representative: President and Representative Director Ishihara Yuzo
- Capitol: 100 billion yen
- Total Employees: 30
- Business Details: Bags, pet goods planning, production and wholesale distribution
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