Founded in 1941 as a general roller-chain manufacturer, Enuma Chain (EK Chains) is headquartered in Kaga, Japan near Komatsu on Japan’s West Coast. In 1974, EK Chains introduced the worlds first sealed O-Ring chain! Quality is an obsession with EK Chains. In 1997, the company was certified to ISO 9001 quality management standards. This certification recognizes the high standards of our quality assurance system and reinforces our guarantee of safety and precision in every product we sell. Research and development at EK Chains has always been focused on creating technological breakthroughs and developing original ideas. Our invention of the O-Ring sealed chain was based on years of accumulated technology, exemplifying a relentless commitment to innovation that continues to drive everything we do.