Hundreds of workers at BHP’s Port Hedland operations in Western Australia have taken industrial action in a major wage dispute, marking the first significant strike to affect the Pilbara mining region in decades.

More than half of the 450 employees at BHP’s bulk export terminal stopped work for eight hours, as unions pushed for standardised pay rates and stronger guarantees on employment conditions. The action involved members from the Electrical Trades Union, the Australian Workers Union and the Australian Manufacturing Workers’ Union.

Union representatives said workers had not taken the decision lightly, describing the strike as a historic moment for the region’s mining workforce. They warned that further industrial action could follow if negotiations fail to deliver an agreement.

The dispute comes after months of unsuccessful bargaining between BHP and employee representatives. Union officials claim the company has failed to make sufficient progress in wage negotiations, while BHP said it remains committed to bargaining in good faith and has already proposed a pay increase package.

The mining giant said its current offer includes a 16 per cent wage increase over four years for the majority of employees. However, unions argue that the proposal does not adequately address workers’ concerns around pay structures and long-term conditions.

The strike has raised concerns about potential economic impacts, with estimates suggesting the action could cost BHP millions in lost revenue and reduce state royalty income. Port Hedland is one of the world’s largest iron ore export hubs, with hundreds of millions of tonnes shipped annually.

Western Australian Premier Roger Cook described the industrial action as concerning but said disputes between mining companies and workers were part of the state’s industrial relations system. He urged both sides to return to negotiations and find a resolution.

Despite the disruption, BHP said operations would continue during the strike period. The company and unions are expected to resume discussions through the Fair Work Commission.

The dispute highlights growing tensions between major resource companies and workers seeking improved pay and conditions amid rising living costs. For the Pilbara region, where mining remains central to the economy, the outcome could influence future workplace negotiations across the resources sector.