Portovesme – primary aluminium smelter (formerly Alcoa)
idled- Capacity
- 150 kt/yrkt Al/yr – electrolysis capacity per Alcoa (2014)
- Status
- wstrzymany
Electrolysis idle since 11.2012 – plant taken over by Sider Alloys in 02.2018; primary aluminium production has not resumed.
Verified at source:
- B Alcoa (Howmet archive), announcement “Alcoa to Close Portovesme Smelter in Italy”, 25.08.2014 – 150 kt/yr, idle since 11.2012
- C UIL, memorandum for the hearing before the 10th Committee of the Chamber of Deputies on the Portovesme industrial hub, 14.05.2025, p. 4 – production has not been resumed
- B MIMIT – Verbale di incontro SiderAlloys S.p.A., 21 febbraio 2024 minutes of the meeting: revamping dependent on financing (SACE “Green” guarantee), possible start in 2024, full capacity end of 2025/start of 2026, target 418 employees in 02.2026; CIGO announced if financing is lacking
- B MIMIT – komunikat „Sider Alloys, Mimit: verificate le condizioni di realizzabilità del piano industriale”, 17.04.2025 announcement: rising revamping costs, expiry of Invitalia's participation deadline, technical mission of a large aluminium operator interested in the investment; no capacity figures
- C Austrian Federal Ministry of Finance, World Mining Data 2026, Table 6.4 (production by country, 2020–2024) – no entry for Italy in the “Aluminium” sheet arkusz Aluminium