| 1905 |
Hitachi Mine Opening (Our Group's Founding) |
| 1905 |
Fusanosuke Kuhara (Fusanosuke Kuhara), Hitachi Mine opened (founding of our group) |
| 1906 |
Start of Hitachi Mine and First Shaft Excavation |
| 1907 |
Hitachi Mine conducts Japan's first diamond drilling for metal ores |
| 1908 |
Start of operations at Daisoin Smelting Plant (now Hitachi Works) |
| 1912 |
Establishment of Kubara Mining |
| 1914 |
Construction of large chimney at Hitachi Mine |
| 1914 |
Start of operations at Saga Seki Smelting Plant |
| 1916 |
Kubara Mining goes public |
| 1928 |
Yoshisuke Ayukawa becomes the second president of Kubara Mining |
| 1928 |
Kubara Mining renamed to Nippon Sangyo |
| 1929 |
Establishment of Nippon Mining |
| 1945 |
Lost all overseas operations due to the end of World War II |
| 1949 |
Establishment of Karasuyama Testing Laboratory |
| 1950 |
Start of Kawasaki Factory Operations |
| 1953 |
Establishment of Miyakami Smelting (now JX Metals Miyakami Recycling) |
| 1964 |
Opening of Kurami Factory |
| 1968 |
Establishment of Chile Office |
| 1970 |
Completion of Saga Seki and Nippon Mining-style No. 1 Self-Heating Furnace |
| 1971 |
Establishment of Tomakomai Chemical (now JX Metals Tomakomai Chemical) |
| 1972 |
Start of operation at Zaire Musoshi Copper Mine |
| 1981 |
Establishment of Nippon Mining Gould & Foil (now Hitachi Plant Copper Foil Manufacturing Department) |
| 1985 |
Start of Isobara Factory Operations |
| 1986 |
Opening of Nippon Mining Memorial Museum |
| 1988 |
Establishment of Nippon Mining Coil Center (now JX Metals Coil Center) |
| 1989 |
Acquisition of Gould Corporation in the United States |
| 1989 |
Established Nippon Mining Taiwan (now Taiwan Nippon Mining & Metals) |
| 1990 |
Establishment of Nippon Mining Taiwan (now Taiwan Nippon Mining & Metals) |
| 1990 |
Established NIMTEC (now JX Advanced Metals USA) |
| 1992 |
Start of Nippon Mining Metals Business |
| 1996 |
Start of single-furnace operation at Saga Seki Smelting Plant |
| 1998 |
Nippon Mining Metals listed on the First Section of the Tokyo Stock Exchange |
| 1999 |
Establishment of Nippon Mining Materials (spin-off of Japan Energy's electronic materials business) |
| 2000 |
Start of production at Los Perranbres Copper Mine in Chile |
| 2001 |
Establishment of Shanghai Nippon Mining & Metals |
| 2002 |
Joint holding of Nippon Mining Metals and Japan Energy |
| 2003 |
Established Nippon Mining & Metals Metal Processing (separated and spun off from Nippon Mining & Metals' metal processing business) |
| 2005 |
Established Korea Nippon Mining Materials (now Korea JX Metals) |
| 2006 |
New Nippon Mining & Metals launched (Nippon Mining & Metals, Nippon Mining Materials, and Nippon Mining Metal Processing merged) |
| 2006 |
Integrated copper smelting functions of Nippon Mining & Metals and Mitsui Mining & Smelting into PPC (smelting functions of Saga Sea Smelter and Hitachi Copper Refinery spun off to Nippon Mining Smelting and transferred to PPC) |
| 2010 |
New Nippon Mining Holdings and New Japan Oil merged to establish a holding company, JX Holdings. |
| 2010 |
Nippon Mining & Metals renamed to JX Nippon Mining & Metals. |
| 2010 |
Tsuruga Plant (now JX Metals Circular Solutions Tsuruga) |
| 2014 |
Ceremonial opening of the Caserones Copper Mine in Chile |
| 2014 |
Ribbon-cutting ceremony at the opening ceremony |
| 2016 |
Company name changed to JX Metals |
| 2017 |
JX Holdings Inc. and Toho Gas Co., Ltd. merged to establish the holding company JX T G Holdings |
| 2017 |
Frankfurt Office established |
| 2018 |
Acquired shares of H. C. Starck Tantalum & Niobium (now TANIOBIS) |
| 2020 |
Changed name from H. C. Starck Tantalum & Niobium to TANIOBIS |
| 2023 |
Changed English trade name from JX Nippon Mining & Metals Corporation to JX Metals Corporation |
| 2023 |
Johannesburg Office established |
| 2024 |
Changed English trade name from JX Metals Corporation to JX Advanced Metals Corporation |
