Griffin Coal Mining Co Ltd v The Coal Miners Industrial Union of Workers of Western Australia

The case between Griffin Coal Mining Co Ltd and The Coal Miners Industrial Union of Workers of Western Australia was before the Full Bench of the Industrial Relations Commission of Western Australia. The dispute centred on the interpretation of an enterprise agreement that specified annualised salary rates for employees. The union argued that the employer had not fully complied with the agreement's terms, leading to a legal contest over the binding nature of the agreement's provisions and the employer's obligations under it.

The court was tasked with determining whether the provisions of the enterprise agreement were binding on the parties and whether the employer had contravened the agreement by not paying the full amount specified for employees' salaries. Additionally, the court had to assess whether the agreement's compensation regime for injured workers was clear and unambiguous, and whether the agreement should be construed by reference to its entirety or by considering external materials.

The court found that the enterprise agreement was binding and that its provisions should be interpreted based on the agreement's text alone. It concluded that the clause specifying annualised salary rates was unambiguous and that the employer was required to pay the full amount stated in the agreement, which exceeded statutory minimums. The court further held that the compensation regime for injured workers was clearly outlined in the agreement and did not require interpretation beyond the agreement's terms. The union's arguments regarding external material and the need for a broader interpretation of the agreement were dismissed. The court issued declarations in favour of the employer, confirming the binding nature of the agreement's provisions and the employer's obligations under it.