Masanori Okada

Nippon Mining & Metals Co., Ltd., which produces gold mainly as a by-product of copper smelting, has its headquarters in Tokyo, Japan. The company's operations include mining and smelting of non-ferrous metals and manufacturing of chemicals, materials and products, notably for the electronics industry

Nippon Mining Holdings Inc. operates two core businesses—petroleum, through Japan Energy Corp., and metals, through Nippon Mining & Metals Co., Ltd. The company does business by holding shares, manages and controls companies that is engaged in crude oil and natural gas mining, coal and brown coal mining, refining and processing of petroleum, sale of crude oil and petroleum products. Nippon Mining also manages manufacturers and sellers of nonferrous metals and other metal products including precious metals and jewelry.

JX Nippon Mining & Metals Corp. engages in the development and mining of non-ferrous metal resources. Its products include copper foil, sputtering targets, compound semiconductors, surface treatment agents, metallic powder, precision rolled products, cathode materials and precision fabricated products. The company was founded in December 1905 and is headquartered in Tokyo, Japan.

Japan Energy Corp. refines and distributes crude oil. The company engages in petroleum exploration & development, refining, and petroleum product sales to liquefied petroleum gas, lubricants, and petrochemical products. It was founded in December, 1905 and is headquartered in Tokyo, Japan