Mineralogy Pty Ltd v Sino Iron Pty Ltd (No 3)

Mineralogy Pty Ltd initiated proceedings against Sino Iron Pty Ltd, with the Attorney General for the State of Western Australia seeking leave to intervene in the Federal Court. The core dispute revolved around the interpretation of contracts, specifically the extent to which the State could influence the proceedings and the potential effect of its intervention on the trial timetable. The Attorney General argued that it had a direct interest in the proceedings due to its contractual ties and sought permission to present its views on the interpretation of the contracts, both in writing and orally.

The legal issues before the court included the interpretation of "direct interest" under rule 9.12 of the Federal Court Rules and whether the State's intervention would unduly interfere with the ongoing trial. The court had to balance the State's interest against the rights of the original parties and the necessity of preserving the trial timetable. Furthermore, the court needed to determine whether the intervention would allow the State to adequately argue its position concerning the construction of contracts and their implications for other agreements.

In considering these issues, the court found that the Attorney General had a sufficient interest in the proceedings due to its contractual involvement. The court emphasised that the State's intervention, limited in scope and timing, would not disrupt the trial timetable or impede the parties' ability to conduct the proceedings as they wished. The court granted leave to intervene, noting that the State could make written and oral submissions concerning the interpretation of the contracts to which it was a party. The court clarified that this decision did not address the issue of whether Mineralogy’s claim for declaratory or injunctive relief was barred due to the State's inability to lead evidence or cross-examine witnesses.

Accordingly, the court ordered that the Attorney General for the State of Western Australia be granted leave to intervene in the proceedings to make written and oral submissions on matters of law arising from the terms of the agreement to which it is a party.