[SMM Aluminum Flash News] Tiwai Smelter Faces Strike Risk as Talks Move to Mediation

Published: May 4, 2026 15:43
The Rio Tinto-owned Tiwai Point aluminum smelter in New Zealand faces strike risk, with 186 workers, about 28% of the workforce, planning stoppages on May 4, 6, 8 and 10. The action follows around 2.5 years of unresolved labor negotiations over pay, benefits and working conditions. The company has proposed mediation on May 20 to reach an agreement. While management said current terms remain competitive and negotiations are ongoing, the planned industrial action could disrupt production schedules and operational stability at the smelter. If talks fail to make progress, the risk of prolonged disruptions may increase, creating uncertainty for near-term aluminum supply and adding pressure to an already tight global market environment.

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