New Zealand's Aluminium Smelter (NZAS) is New Zealand's only aluminium smelter and is located on Tiwai Peninsula, across the harbour from Bluff in Southland.
NZAS is 79.36 per cent owned by Rio Tinto and 20.64 per cent owned by Japan's Sumitomo Chemical Company. NZAS is a tolling plant, producing primary aluminium in the form of ingot, billet and rolling block. The majority of the plant's alumina is supplied from the Yarwun and Queensland Alumina refineries at Gladstone in Queensland, Australia. Around 90 per cent of the aluminium produced at NZAS is exported.
In the 1960s, Tiwai Point was chosen as the location for an aluminium smelter for a number of reasons. Aluminium smelting requires a large and very reliable power source to continually supply electricity to reduction cells, and Tiwai Point's proximity to the then proposed Manapouri Power Station made it an attractive location. In addition, Tiwai Point was close to the deep sea port of Bluff and the well established infrastructure of the City of Invercargill. The smelter commenced operations in 1971.
NZAS contributes $406 million to the Southland economy (6.5 per cent of Southland's GDP) with export revenue of around $1 billion each year. Approximately 990 full time equivalent employees and contractors work at the smelter.
In July 2020, Rio Tinto announced the planned wind-down of operations and eventual closure of NZAS, scheduled for August 2021. The decision followed a strategic review and extensive discussions with a wide range of stakeholders, which showed the business is no longer viable given high energy costs and a challenging outlook for the aluminium industry.
We will continue working with our partners as we progress towards closure, and will do all we can – together with the government – to find ways to support the Southland community.
Invercargill, New Zealand
Phone : +64 3 218 5999
Private Bag 90110
Invercargill 9840, New Zealand
C/O 3 Spey Street
Invercargill, New Zealand
Level 10, 342 Lambton Quay
PO Box 1665
Phone: +64 4 916 1496
While the threat of COVID-19 is currently under control in New Zealand, the consequences of lockdown are still being felt by many New Zealand families. These include reports of a significant rise in calls to police and support services regarding family harm. ... Read more
Rio Tinto will start planning for the wind-down of operations and the eventual closure of New Zealand Aluminium Smelters (NZAS) following the conclusion of its strategic review which has shown the business is no longer viable given high energy costs and a challenging outlook for the Aluminum industry ... Read more
NZAS’ mental health and support services, previously offered exclusively to the smelter’s employees, will be extended to assist the residents of Invercargill and Bluff as part of Rio Tinto’s COVID-19 relief package. ... Read more
To be attributed to NZAS chief executive and general manager Stewart Hamilton: To support the health and safety of our employees at NZAS and in accordance with government directives in relation to containing the spread of Covid-19 we have implemented a number of new controls. ... Read more
NZAS remains committed to the 2018 agreement with Southland District and Regional Councils, Invercargill City Council, Gore District Council and the New Zealand Government to provide financial assistance in the removal and disposal of a fertilizer premix (Ouvea Premix) material currently stored at the Mataura Paper Mill and other facilities ... Read more
Rio Tinto will conduct a strategic review of its interest in New Zealand’s Aluminium Smelter (NZAS) at Tiwai Point, to determine the operation’s ongoing viability and competitive position ... Read more
Pacific Aluminium (New Zealand) Limited (PacAl NZ), a subsidiary of Rio Tinto, has reported its interest in the Tiwai Point smelter operated by New Zealand Aluminium Smelters Limited (NZAS)... ... Read more
Prime Minister Jacinda Ardern today officially re-opened Potline 4 at New Zealand’s Aluminium Smelter (NZAS) at Tiwai Point. Majority owner Rio Tinto has invested NZ$6 million this year to upgrade and restart Potline 4 at the smelter, adding 31,000 tonnes of production capacity. ... Read more
Pacific Aluminium (New Zealand) Limited (PacAl NZ) has reported its financial results relating to its interest in New Zealand's Aluminium Smelter (NZAS), showing underlying earnings of NZ$75 million for 2017, an increase of NZ$50 million on the previous year. ... Read more
New Zealand's Aluminium Smelter (NZAS) is delighted to welcome Stewart (Stew) Hamilton back to site in his new role of Chief Executive and site General Manager. Stew will begin in the role on 2 July 2018 and will have a two-week handover with Gretta Stephens in May. ...
After four years as the Chief Executive and General Manager of New Zealand's Aluminium Smelter (NZAS) Gretta Stephens has announced her resignation to join BlueScope Steel as Chief Executive New Zealand and Pacific Islands. ...
Pacific Aluminium (New Zealand) Limited (PacAl NZ) has reported its financial results relating to its interest in New Zealand’s Aluminium Smelter (NZAS), showing underlying earnings of NZ$25 million for 2016, a decrease of nearly NZ$30 million on the previous year. ... Read more
Pacific Aluminium (New Zealand) Limited (PacAl NZ) has reported its interest in New Zealand’s Aluminium Smelter (NZAS), showing underlying earnings of NZ$54 million for 2015, a decrease of NZ$2 million on the previous year. ... Read more
NZAS has today received the decision of the Supreme Court declining its application for leave to appeal the lieu days matter. ... Read more
Following 25 years helping to save New Zealand's iconic Kākāpō from extinction, New Zealand's Aluminium Smelter (NZAS) has made the difficult decision to step down as major sponsor of the Kākāpō Recovery Programme at the end of 2015 ... Read more
Pacific Aluminium (New Zealand) Limited has reported underlying earnings of $56 million for 2014 ... Read more
Rio Tinto Alcan (New Zealand) Limited (RTANZ) today released its annual financial report for the year ending 31 December 2013 ... Read more
NZAS will seek leave to appeal the Employment Court's decision on acrual of 'lieu days' for 12-hour shift workers ... Read more
The immediate future of New Zealand's Tiwai Point aluminium smelter has been secured through the signing of a long term electricity agreement ... Read more
New Zealand's Aluminium Smelter has commenced reducing its electricity load from 572MW to 540MW due to extremely low hydro lake levels ... Read more