Onamba Co., Ltd. engages in the manufacture and sale of new energy-related products, wire harness products, electric wires, and machinery and parts for harness fabrication. Its products include photovoltaic interconnecting unit, combiner box, automotive harness, industrial equipment harness, automotive connectors, cables and wires. It operates through the following segments: Japan, Europe, and Asia. The company was founded by Iwao Ono on September 15, 1941 and is headquartered in Osaka, Japan.