| 1869 |
Founded in the Shasui District of the Kanazawa Domain (now Takaoka City, Toyama Prefecture). |
| 1946 |
Established Kurotani Store, primarily selling non-ferrous metal materials. |
| 1967-04 |
Converted from a sole proprietorship to a corporation, establishing Kurotani Co., Ltd. (capital 300 million yen). |
| 1985-11 |
Kurotani Toshio acquired all shares of Shin Nihon Bijutsu Co., Ltd. |
| 1985-11 |
Shunobu Kurotani acquired all shares of Shin Nihon Art Co., Ltd. (capital 10 million yen, manufacturing and sales of art castings, smelting and processing of non-ferrous metals, and sales). |
| 1986-01 |
Moved headquarters to Nishi-machi, Takaoka City, Toyama Prefecture. Opened a Kusugi branch in Shasui District, Toyama Prefecture (later closed). |
| 1986-01 |
Moved headquarters to 5-25 Nishi-machi, Takaoka City, Toyama Prefecture. To expand business, opened Kosugi branch office in Shimosu District (now Shimosu City), Toyama Prefecture (closed August 1993). |
| 1986-03 |
Changed the company name to Kurotani Corporation. |
| 1986-10 |
Relocated headquarters and main factory to Shinminato City, Toyama Prefecture. Opened Tokyo and Niigata branches. |
| 1986-10 |
Relocated headquarters and factory to 2-12 Naginoue, Shinminato City (now Shimosu City), Toyama Prefecture. Opened Tokyo branch office (now Tokyo branch) and Niigata branch office (now Niigata office). |
| 1986-10 |
Relocated headquarters and factory to 2-12 Naginoue, Shinminato City (now Shimosu City), Toyama Prefecture. Opened Tokyo branch office (now Tokyo branch) and Niigata branch office (now Niigata office) as business locations. |
| 1992-04 |
Opened an Osaka branch to expand sales of art and craft goods (later closed). |
| 1992-04 |
Opened Osaka branch office to expand sales of art and craft goods (closed August 2008). |
| 1993-03 |
Established Techno Cast Co., Ltd. for manufacturing and selling extrusion copper alloy billets. |
| 1993-03 |
Established Techno Cast Co., Ltd. to manufacture and sell extrusion copper alloy billets and sell non-ferrous metal raw materials.{ |
| 1993-03 |
Established Techno Cast Co., Ltd. to manufacture and sell extrusion copper alloy billets and sell non-ferrous metal raw materials (business: non-ferrous metal casting processing). |
| 1993-04 |
Acquired all shares of Art & Craft Co., Ltd. |
| 1993-04 |
Acquired all shares of Art & Craft Co., Ltd. (established to: 1) sell precious metals, precious stones, pearls, and sappan; 2) sell products made from those materials; 3) sell precious metal plated or coated products and cast metal products). |
| 1993-04 |
Acquired all shares of Art & Craft Co., Ltd. (established to: 1) sell precious metals, precious stones, pearls, and sappan; 2) sell products made from those materials; 3) sell precious metal plated or coated products and cast metal products. Business: sell art and craft goods). |
| 1994-08 |
Acquired all shares of Shin Nihon Trading Co., Ltd. |
| 1994-08 |
Acquired all shares of Shin Nihon Trading Co., Ltd. (established to: 1) sell castings and casting raw materials, 2) sell real estate, etc. Business: sell non-ferrous products). |
| 1994-10 |
Merged with TechnoCast Co., Ltd. and expanded the headquarters factory facilities. |
| 1994-10 |
Merged with Techno Cast Co., Ltd. to expand headquarters factory facilities. |
| 1995-02 |
Merged with Shin Nihon Trading Co., Ltd. and Art & Craft Co., Ltd. |
| 1995-02 |
Merged Shin Nihon Trading Co., Ltd. and Art & Craft Co., Ltd. |
| 2000-08 |
Obtained ISO 9001 certification. |
| 2000-08 |
Obtained ISO 9001 certification. |
| 2005-01 |
Obtained AQSIQ approval. |
| 2005-01 |
Obtained AQSIQ approval. |
| 2007-06 |
Selected as one of the 300 "Energetic Manufacturing SMEs" by the Ministry of Economy, Trade and Industry. |
| 2008-03 |
Obtained ISO 14001 certification. |
| 2008-03 |
Obtained ISO 14001 certification. |
| 2011-06 |
Listed on the Second Section of the Tokyo Stock Exchange. |
| 2011-10 |
Obtained OHSAS 18001 certification. |
| 2011-10 |
Obtained OHSAS 18001 certification. |
| 2012-07 |
Established Kurotani North America Inc. in Oregon, United States. |
| 2012-07 |
Established KUROTANI NORTH AMERICA INC. in Oregon, United States. |
| 2012-07 |
Established KUROTANI NORTH AMERICA INC. in Oregon, United States. |
| 2014-06 |
The North American subsidiary obtained ISO 9001 certification. |
| 2014-08 |
Established Thai Kurotani Co., Ltd., a merged company, in Bangkok, Thailand. |
| 2014-08 |
Established merged company THAI KUROTANI CO., LTD. in Bangkok, Thailand. |
| 2015-01 |
Changed the company name to Kurotani Co., Ltd. |
| 2015-01 |
Company name changed to Kurotani Co., Ltd. |
| 2015-02 |
The North American subsidiary obtained an AQSIQ license. |
| 2015-11 |
Thai Kurotani, the Thai subsidiary, obtained ISO 9001 certification. |
| 2015-11 |
Thai subsidiary obtained ISO 9001 certification. |
| 2015-11 |
Thai Kurotani acquired ISO 9001 certification. |
| 2017-07 |
Obtained export approval for goods subject to Basel Convention regulations. |
| 2017-07 |
Obtained export approval for goods subject to Basel regulations. |
| 2017-08 |
Thai Kurotani, the Thai subsidiary, obtained an AQSIQ license. |
| 2017-08 |
Thai subsidiary obtained AQSIQ license. |
| 2017-08 |
Thai Kurotani obtained AQSIQ license. |
| 2018-07 |
Designated as a First Section stock on the Tokyo Stock Exchange. |
| 2022-04 |
Moved to the Standard Market of the Tokyo Stock Exchange. |
| 2025-01 |
Changed the company name to MERF Co., Ltd. |
| 2025-01 |
Company name changed to MERF Co., Ltd. |
| 2025-01 |
Our U.S. subsidiary CMX Metals acquired the business of California Metal-X in California, USA. |
| 2025-06 |
Established MERF Logistics Co., Ltd. |
