Regis Resources heritage ruling|$1.3 billion gold mine back to the minister?

What the court actually decided

Regis Resources has won its Federal Court challenge against the Aboriginal heritage order that blocked its McPhillamys gold mine. Yet the court left the heritage claim itself untouched, and Regis is still working on a design that avoids the disputed land. The mine sits near Blayney, in central western New South Wales. Reports value the project at up to 1.3 billion dollars.

Mining industry groups hailed the ruling and urged the federal government to let the project proceed. The ruling is best read as handing Regis back one route to its original mine plan. It is not, on its own, permission to build. The industry reaction was jubilant. The Association of Mining and Exploration Companies called it "a welcome victory for common sense".

It asked Environment Minister Murray Watt to act swiftly so the project could proceed. Justice James Stellios framed his finding far more narrowly. He said the invalidity was "the sole consequence of a material deficiency in the process of making the declaration". That is a statement about how the decision was made. It says nothing yet about whether the land deserves protection. The flaw was about timing.

Late in the process, the minister's department received information about a blue-banded bee Dreaming story. The judge found this "constituted, in substance, a new application". So the declaration was made without authority. Crucially, he did not dismiss the claims that the area is a significant site. The court made no judgment on the merits of the heritage claims at all.

The declaration being struck down was itself rare. Then-minister Tanya Plibersek had used it to reject the proposed site of a tailings dam. The application now goes back to the current federal minister, Murray Watt, for redetermination. Regis told the market that Senator Watt will likely be required to decide it again. Regis also said this redetermination could take some time.

It said it would proceed with existing plans to process mining waste at a different site. So a legal barrier has been lifted, but the question it settled was procedural. The heritage claim is intact, and it is back on a minister's desk.

What hangs on one tailings site

The order covered 400 hectares of the mine site. That area included where Regis planned its tailings dam, the structure that holds mining waste. The dam was to sit at the headwaters of the Belubula River. Ms Plibersek made the order in August 2024, after the mine had already received approval in 2023. The New South Wales government had approved the project.

Regis said at the time that the order made the entire project unviable, and no longer financially feasible. McPhillamys holds an ore reserve of 1.89 million ounces of gold. It is described as one of Australia's largest undeveloped open pit gold projects. Across all its mines, Regis produced 379,000 ounces in the last financial year. So this one undeveloped project holds about five years of that output.

Regis also held 1.28 billion dollars in cash and bullion at the end of September. That is close to the 1.3 billion dollar figure reported for the project. On these numbers, what has held the mine back is permission, not ore or money. That makes the route the court reopened very valuable, if it can be used.

The same claims, the same government

The two main parties read the same judgment in opposite ways. Regis managing director Jim Beyer said it "vindicates the position we have held since the declaration was made in August 2024". The Wiradyuri Traditional Owners Central West Aboriginal Corporation had asked for the protection. It had sought to protect the headwaters and springs as a site central to creation stories.

In its statement, the group said: "The court's decision does not diminish the cultural significance of these places." It said it would "carefully consider the judgement and its implications for Wiradjuri people". Both statements can stand at once, because the court ruled only on process. What neither statement mentions is that Aboriginal bodies are divided over this site.

In her 2024 reasons, Ms Plibersek cited "pre-initiation ceremonies at the site" and a threat of "desecration". Yet the Orange Local Aboriginal Land Council, described by the local paper as the area's native title holders, had endorsed the project. Blayney's mayor wants that council consulted on any redetermination.

The original order came from the Albanese government, and the decision now returns to a minister in that same government. Before the judgment, New South Wales Premier Chris Minns said he wanted the mine to go ahead. He added: "I understand that that's not the view of the federal government." Employer group AREEA is pressing Senator Watt to reform the framework, so late, untested claims cannot derail assessed projects.

So the redetermination is not a formality. It puts the same competing claims before the same government that made the original order. The reopened route could close again.

The plan that does not need the land

In 2024, Regis said designing alternative operating plans could take up to a decade. That was part of its case that the order had killed the project. Now, alongside this win, Regis says it is advancing an alternative development strategy at the same time. It would combine waste into an integrated waste landform, detailed in a recent pre-feasibility study.

Regis says this design entirely avoids the area the declaration covered. Regis says it is doing this because the redetermination could be protracted, or could go against it. This echoes an argument from 2024. Ms Plibersek said then that the company could build its tailings storage elsewhere. Regis disputed that. The ruling does not settle whether the alternative is as good as the original plan.

But Regis is no longer treating the original site as its only way forward. That narrows what the court win is worth. The mine's future no longer hangs on this ruling alone. The ruling restores a chance at the original tailings site. It also gives Regis a second path if the alternative design stalls. Regis is running both routes at once.

For shareholders, the win seems to change which path the mine takes, and perhaps how fast, more than whether it can be built at all.

Back on the minister's desk

So does the court win bring McPhillamys closer to being built? It does, but by less than the celebrations suggest. The weight falls on the mine moving through whichever route clears first. The court did not clear the original one. The original route needs a fresh decision from the same government, facing the same claims. The alternative rests on a design Regis has detailed in a pre-feasibility study.

The thing to watch is Senator Watt's redetermination of the original protection application. If he declines to make a new declaration, the original tailings site reopens, and this ruling becomes Regis's main route to building the mine. If he makes a new declaration through a proper process, that route closes again. The Wiradyuri group would regain protection, and Regis would be left with its alternative design.

The court has settled how this decision must be made. Who decides the future of the Belubula River headwaters is settled too. What that minister will decide is not.

Informational only, not investment advice. Figures and quotes come from the linked reports.