New Zealand's Aluminium Smelter (NZAS) is a joint venture company owned by Rio Tinto (79.36 per cent) and Sumitomo Chemical Company Limited of Japan (20.64 per cent). The smelter, which commenced operations in 1971, produces around 350,000 tonnes of aluminium each year. Approximately 90 per cent of the aluminium produced is exported, the largest market being Japan.
full time employees and contractors
tonnes of saleable aluminium produced in 2020
for more than 2,200 people