Workers at the Tiwai Point aluminium smelter in New Zealand have voted to take industrial action starting May 4, 2026, after unsuccessful bargaining with owner Rio Tinto, according to the E tū union. The union represents about 1,000 workers at the plant.
The strike follows months of negotiations over wages and conditions. E tū union spokesperson said the vote reflects workers' frustration with the company's offer, which they consider inadequate given the smelter's profitability and the cost of living.
Rio Tinto, which owns the smelter, stated that it provides a competitive package and is disappointed by the decision to strike. The company said it remains open to further discussions to resolve the dispute.
The Tiwai Point smelter is one of New Zealand's largest industrial sites, producing about 340,000 tonnes of aluminium annually. The strike could impact production and supply chains.
