1978-1990: |
1978.05 Sigma International, Inc. established in New Jersey, USA, exporting metal scrap and seafood. |
1981.05 Sigma Brothers, Inc. established in Kaohsiung, Taiwan, as a metal scrap trader. |
1986.11 Begins planning the Kaohsiung secondary smelting plant. Purchased 5,000 Square meters of land in the Hsiao-Kang district of Kaohsiung for the new plant. |
1987.08 First phase construction of the Kaohsiung plant completed. Monthly aluminum alloy ingot production capacity reaches 2,500 MT. |
1990.12 Second phase construction of the Kaohsiung plant completed. Monthly aluminum alloy ingot production capacity reached 5,000 MT. |
1991-1995: |
1992.05 Sigma Brothers, Inc. in Kaohsiung registeres the aluminum alloy ingot brand 両SBI with the LME. and becomes the first secondary aluminum smelter in Taiwan to be registered with the LME.
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1993.01 Shanghai Sigma Metals, Inc. established in the Bao-Shan district of Shanghai, and construction of the Shanghai plant begins. |
1994.11 First phase construction of the Shanghai plant completed. Monthly aluminum alloy ingot production capacity reaches 6,000 MT. |
1996-2000: |
1996.01 Shanghai Sigma Metals, Inc. registeres the aluminum alloy ingot brand SIGMA with the LME. and becomes the first secondary aluminum smelter in China to be registered with the LME.
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1998.08 Second phase construction of the Shanghai plant completed. Monthly aluminum alloy ingot production capacity reaches 10,000 MT. |
2000.08 Shanghai Sigma Metals, Inc. receives ISO 9002 certification. |
2001-2005: |
2001.04 The board of directors reaches an agreement to build a new Shanghai smelting plant with a larger production capacity in order to meet the demands of the fast growing Chinese market.
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2002.08 Planning for the new Shanghai plant, which is to occupy 360,000 Square meters of land, is completed and construction begins. |
2003.02 The signing ceremony for the strategic alliance with Daiki Aluminum Industry held in Tokyo. |
Global Metals Industrial Corp. established in New Jersey, USA, as the metal scrap purchasing agent in North America for the Sigma Group. |
2005.01 Shanghai Sigma Metals, Inc. officially moves to the new plant at No.9, Fu-Lian 3rd Road inside the Gucun Industrial Park. |
2005.11 Shanghai Sigma Metals, Inc. is designated Model Enterprise for the Circular Economy by Chinas National Development and Reform Commission. |
2007: |
2007.01 Zhangzhou Sigma Metals, Inc. was established on the basis of the buyout of Tsann Kuen's Zhangzhou smelting plant. It currently has a monthly production capacity of 15,000 MT
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2008: |
2008.04 Chongqing Sigma Metals, Inc. was established in Chongqing, China. |
2012 |
2012.03 Rizhao Sigma Metals, Inc. established and begins production in August, supplying mainly liquid metal, with an annual capacity of 100,000 mt. |
2013 |
2013.04 Changchun Sigma Metals, Inc. established for the primary purpose of liquid metal delivery with annual capacity of 80,000mt. |
2014 |
2014.02 Global Metal Industrial Corp. is established in Tokyo, as the scrap and ingot trading arm of Sigma Group in Japan. |
2014.04 Zhejiang Sigma Metals is established with an annual capacity of 210,000mt. |
2015 |
2015.03 Chengdu Sigma Metals, Inc. begins production with an annual capacity of 60,000mt. |
2016 |
2016.02 Baotou Sigma Metals,Inc. begins production with an annual capacity of 100,000mt. |
2018 |
2018.06 Chongqing Sigma Environmental Technology is established. |
2019 |
2019.04 Baotou Sigma Environmental Technology is established. |
2019.05 Binzhou Sigma Environmental Technology is established. |
2019.06 Binzhou Sigma Metals is established with an annual capacity of 100,000mt (phase 1). |
2020 |
2020.01 Gongyi Sigma Metals is established with an annual capacity of 100,000mt (phase1). |
2020.04 Gongyi Sigma New Materials is established. |