コーケン Company Profile

Our mission is to keep the streets, infrastructure, and environment strong and beautiful forever.

Koken Co., Ltd. is located in Yokohama City, Kanagawa Prefecture, and has contributed to society through blast work and heavy anti-corrosion construction. As experts in heavy anti-corrosion, we also engage in related businesses such as the collection and transportation of industrial waste, asbestos removal, and water jet method/environmental measures construction. Both iron and concrete deteriorate and corrode over time, losing their strength and beauty. Koken will continue to contribute to Japan, society, and the world through heavy anti-corrosion!