| 1923 |
Establishment of the Suzuki Kinzaburo Store in Taito Ward, Tokyo . Manufacture and sales of nonferrous metals, secondary steel products, and raw materials. |
| 1938 |
Establishment of Suzuki Metal Industry Co., Ltd. In Kita Ward, Tokyo . Manufacture of piano wire (previously only imported) |
| 1949 |
Reorganization of the Suzuki Kinzaburo Store into Suzuki Industry Co., Ltd. agent for Suzuki Metal Industries. Sales of piano wire and non-ferrous metals. |
| 1950 |
Collection and refining of special-steel scrap, chiefly tool-steel scrap. Start of supplying of refined scrap to special-steel manufacturers. |
| 1955 |
Opening of business office at Takaracho, Chuo Ward, Tokyo. |
| 1958 |
Manufacture of Ferrotitanium. |
| 1959 |
Opening of Kansai Branch in Naniwa Ward, Osaka. Establishment of Takasima Metal Kogyo. |
| 1962 |
Building of a chemical refining plant in Yokosuka. Manifacture of Synthetic Scheelite, Vanadium Pent-Oxide and Selenium. |
| 1967 |
Building of a chemical refining plant in Koga to cope with increasing demand. Movement of the plant to Sanwa in Ibaraki Prefecture in 1973 |
| 1968 |
Building of a chemical refining plant in Higashi Osaka. Closing of the plant in 1980 due to city zoning. |
| 1971 |
Construction of headquarters building and a warehouse at Akabane, Kita Ward, Tokyo. Merging of the Takaracho office with the head office. |
| 1973 |
Authorization by the Tokyo Metropolitan Government to collect and convey industrial waste. Each plant was approved by the pollution Prevention Act. |
| 1981 |
Installation of an atomic absorption analyzer and KEVEX fluorescent analyzers. Provision of additional chip crushers and cutters. |
| 1988 |
Mar. Construction of a business office and a warehouse at 2-14 Miyacho, Kawaguti. Moving of Sales Division to the office. |
| 1988 |
Sep. Closing of the warehouse at Akabane, Kita Ward. Construction of an office building. |
| 1990 |
Reconstruction of the headquarters building at Akabane, Kita Ward Tokyo. |
| 1992 |
NS3 building is completed. |
| 2004 |
ISO14001/2004 Certificate No.AJA04/7807 |
| 2009 |
Started Solar Power Generation at Kawaguchi head office |
| 2017 |
ISO14001/2015 Certificate No.AJA04/7807 Completed large scale works at NS3 building |
| 2018 |
70th anniversary Completed renovation of Kawaguchi head office |
