| 1932-02 |
白銅商店として東京市京橋区(現 中央区八丁堀)にて個人創業 |
| 1932-02 |
Hakudo Shoten was founded by Hiroji Yamada as private business selling non-ferrous metals in Hachobori, Kyobashi-ku (now Chuo-ku), Tokyo. |
| 1949-11 |
非鉄金属の販売を目的として株式会社白銅商店設立 |
| 1949-11 |
Hakudo Shoten was re-organized as joint-stock company. |
| 1967-05 |
商号を白銅株式会社に変更 |
| 1967-05 |
Change of trade name from Hakudo Shoten to Hakudo Co., Ltd. |
| 1968-02 |
コンピューターシステム導入 |
| 1968-02 |
The first-generation computer system was installed. |
| 1974-10 |
神奈川県に工場拠点を開設 |
| 1974-10 |
Launch and operation of Kanagawa Process Center in Kanagawa Prefecture. |
| 1978-06 |
翌日配達販売の開始 |
| 1978-06 |
Start of “Next-day delivery” service. |
| 1978-09 |
切断販売開始 |
| 1978-09 |
Commencement of “Cut-to-order” service. |
| 1983-06 |
大阪府に営業拠点を開設 |
| 1983-06 |
Opening of Osaka office (now West Japan Department) in Osaka Prefecture. |
| 1990-03 |
滋賀工場の操業開始 |
| 1990-03 |
Opening and operation of Shiga Process Center was opened and started operation in Shiga Prefecture. |
| 1991-10 |
金属事業に関する不動産を保有する目的で廣成株式会社を設立 : (注)この廣成株式会社は、株式の額面金額を変更するため、1992年1月、白銅に吸収合併されました。 |
| 1992-04 |
旧 白銅株式会社(現 廣成株式会社)より金属事業に関する営業を譲受、同時に商号を銅金株式会社から白銅株式会社に変更 |
| 2000-03 |
日本証券業協会に店頭登録 |
| 2000-03 |
Hakudo Co., Ltd. was listed on JASDAQ, becoming public company. |
| 2003-05 |
上海白銅精密材料有限公司を設立 |
| 2003-05 |
Shanghai Hakudo Precision Materials Co, Ltd. was established a fully owned subsidiary in Shanghai, China. |
| 2004-10 |
東京証券取引所市場第二部に上場 |
| 2004-10 |
Hakudo Co., Ltd. was listed on the second section of the Tokyo Stock Exchange. |
| 2005-09 |
東京証券取引所市場第一部に上場 |
| 2005-09 |
Hakudo Co., Ltd. was listed on the first section of the Tokyo Stock Exchange. |
| 2006-02 |
郡山工場（現福島工場）の操業開始 |
| 2006-02 |
Opening and operation of Fukushima Process Center in Fukushima Prefecture. |
| 2008-05 |
九州工場（現佐賀工場）の操業開始 |
| 2008-05 |
Opening of the Kyushu Process Center in Saga prefecture. |
| 2014-10 |
HAKUDO(THAILAND)Co.,Ltd.を設立 |
| 2014-10 |
Hakudo (Thailand) Co., Ltd. was established in Bangkok, Thailand. |
| 2015-01 |
Metal additive manufacturing (Metal 3D Printing) service commenced in Kanagawa Process Center. |
| 2017-02 |
Opening of the Representative Office of Hakudo Co., Ltd. in Ho Chi Minh, Vietnam. |
| 2017-11 |
埼玉工場の操業開始 |
| 2017-11 |
Opening and operation of Saitama Process Center in Saitama Prefecture. |
| 2019-02 |
株式会社AQR(旧高瀬アルミ株式会社)を完全子会社化 |
| 2019-11 |
Made Takase Aluminum Co., Ltd. a wholly-owned subsidiary. |
| 2022-04 |
東京証券取引所による市場再編に伴い、上場市場区分が「プライム市場」に変更 |
| 2022-12 |
Hakudo USA Inc.を設立 |
| 2022-12 |
Hakudo USA Inc. was established in Los Angeles,United States. |
| 2023-03 |
Hakudo USA Inc.（当社連結子会社）が、West Coast Aluminum & Stainless, LLCの持分を取得し、子会社化（当社の孫会社化） |
| 2023-03 |
Hakudo USA Inc., a wholly owned subsidiary, acquired a stake of West Coast Aluminum & Stainless, LLC and made it a subsidiary. |
| 2024-12 |
福岡工場の操業開始 |
| 2026-01 |
埼玉第二工場の操業開始 |
