History

Tatsumi Mukai Established Sanei Kogyosho for the purpose of selling piston rings individually

Reorganized into Sanei Kogyo Co., Ltd.
Selling diesel parts

Niigata Diesel Service
Conclude a station contract and an agency contract with Hanshin Diesel Works, Ltd.

Open Imabari Sales Office

Moved the head office to 10-1, Higashionomichi, Onomichi