Corporate Philosophy

Working for a better future where people, their lifestyles and nature coexist in harmony

We WELMA Co., Ltd. have dedicated 50 years to excavating work. During the period, we changed company name Nihon Boring Corporation, and Nichibor Resources Development & Drilling Co., Ltd.
Through our work ranging from the excavation, survey and planning required to develop natural energy and underground resources such as geothermal heat, hot springs and minerals to civil engineering excavation for tunnel and dam construction to drilling of earthquake observation wells, we will further improve our proven capabilities, highly-specialized skills and technological expertise as part of our commitment to building a harmonious society where people, their lifestyles and nature can coexist.