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JX Advanced Metals Corporation
Japanese high-performance copper alloy maker (formerly JX Nippon Mining & Metals copper alloy division, now JX Advanced Metals Corporation — a subsidiary of ENEOS Holdings); one of Japan's largest specialty copper alloy strip suppliers to electronic connector makers. JX Advanced Metals supplies alloys for all major connector types: harness connectors (automotive wire harness terminals), FPC (flexible PCB) connectors, board-to-board connectors, and floating connectors. Known alloy grades include high-strength, high-conductivity Corson (CuNiSi) types and CuSn (tin bronze) precision strip. JX AM produces copper alloy strip at its Hitachi, Ibaraki facility and mines/refines copper (Hishikari gold-copper mine, Saganoseki refinery). Also a major sputtering target supplier for semiconductor fabrication (copper and specialty metals). Parent ENEOS Holdings is Japan's largest energy company.
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Copper Alloy Strip (Connectors)
40%Sputtering Targets (Semiconductor)
25%Mining & Smelting
25%Other Advanced Materials
10%
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Did you know2024
JX Advanced Metals (ENEOS Holdings subsidiary) simultaneously serves: (1) automotive connector supply chain — precision Corson alloy strip for Toyota, Honda, and Nissan wire harness connectors; (2) semiconductor manufacturing — copper sputtering targets for the copper damascene wiring process used at TSMC, Samsung, and Intel (the same physical copper that becomes wire harness connector strip at one JX plant is deposited as chip interconnect copper at semiconductor fabs using JX sputtering targets from another plant); and (3) gold mining — Hishikari mine produces Japanese domestic gold, one of the highest-grade gold mines in the world. The parent ENEOS Holdings that operates Japan's largest oil refinery also mines Japan's highest-grade gold mine, makes the copper alloy for the EV connector, and supplies the copper deposition target for the semiconductor chip in the EV's infotainment system. A petroleum company at the core of three different technology supply chains — fossil fuel, electric vehicle, and semiconductor — through its metals subsidiary.
JX Advanced Metals Corporation ↗Origin2023
JX Advanced Metals Corporation's parent, ENEOS Holdings (Japan's largest energy company with ~¥15 trillion revenue), primarily operates petroleum refining (ENEOS is Japan's largest oil refiner, operating Eneos gas stations nationwide) and petrochemicals. The JX Advanced Metals subsidiary brings ENEOS Holdings into specialty metals — mining gold at Hishikari (Kagoshima, one of the world's highest-grade gold mines), refining copper at Saganoseki (Oita Prefecture, Japan's largest copper refinery), and producing precision copper alloy strip at Hitachi (Ibaraki). ENEOS's semiconductor sputtering target business (through JX Advanced Metals) makes the copper deposition targets used in semiconductor damascene copper wiring — the same ENEOS that operates oil refineries and gas stations also supplies the copper film deposition materials for TSMC chip manufacturing. Japan's largest petroleum company is embedded in the semiconductor supply chain through its metals subsidiary.
JX Advanced Metals Corporation ↗