Started as a small workshop named Yoshida Ironworks in Saga Prefecture back in 1946, the company started its business line in producing and repairing drilling machines and equipment used for exploration of the Karatsu Coal Mine. As a result of Japan’s economical growth, the company has consolidated as a manufacturer of machines and tools for the civil engineering, construction, mineral resources exploration, hot spring surveying and development, as well as drilling tools for the Geothermal, Oil and Gas exploration industries. The company later changed its name as YBM Co., Ltd in 1996 on its 50th anniversary. YBM stands for Yoshida Boring Machine. To date, Indonesia office located in Jakarta is the only one overseas representative office owned by the company.