Sumo, a brand of REX, Japan's largest pipe tool equipment manufacturer since 1925, headquartered in Osaka, leads with over 300 employees across six countries. Upholding "the three benefits" philosophy, Sumo serves customers, employees, and society. ISO 9001 and 14001 certified, Sumo offers pipe threading, grooving, and hole cutting machines. Led by industry veteran Mr. John K Miyagawa, Sumo excels in domestic and international markets.