Court Sets Aside Heritage Ban on Regis’s McPhillamys Gold Project

The Federal Court on Wednesday struck down the heritage protection declaration that had frozen Regis Resources’ McPhillamys gold project in central west New South Wales, and sent the decision back to Environment Minister Murray Watt. The mine has not been cleared to proceed. The ruling turned on process, so a fresh ministerial decision is now required.

The declaration, made in August 2024, covered 400 hectares, including the planned tailings dam site. It left a project that NSW had already approved in 2023 stranded for more than two years.

The stakes are large. McPhillamys holds a 1.89 million ounce gold reserve, which makes it one of Australia’s largest undeveloped open-pit gold deposits.

This piece sets out what the ruling changes, what it leaves open, and the markers worth watching next, both for Regis and for mining approvals more broadly.

What the Federal Court decided, and what it left open

On its face, Regis won outright. Justice James Stellios found that then environment minister Tanya Plibersek made the August 2024 declaration under the Aboriginal and Torres Strait Islander Heritage Protection Act 1984 without the authority the Act requires. Regis had launched its challenge in November 2024.

Federal heritage protection orders under the 1984 Act sit alongside state approvals rather than replacing them, which is why a NSW consent from 2023 could still be overridden by a Commonwealth declaration in 2024.

The reasoning, however, was narrow. The judge held that material about the Blue Banded Bee Dreaming story amounted to a new application. That meant it should have gone to a government-appointed reporter for assessment and public consultation before any declaration was made.

The Court’s finding The declaration was made “without authority” because the statutory reporter and consultation process for a new application did not occur.

What the ruling did:

• Declared the protection declaration invalid
• Found a procedural failure under the 1984 Act
• Returned the matter to Watt for a fresh decision
• Directed costs submissions by 27 October 2026

What it did not do:

• Approve the mine
• Rule on the area’s cultural significance
• Decide whether the Dreaming story is accurate
• Bar a lawful declaration in future

Watt said the judgment concerned an error in process, not the merits of the heritage claim. Prime Minister Anthony Albanese said the government was examining the judgment.

What happens next in the redetermination

Watt must now decide again. A lawful process that runs through a reporter and public consultation could still end in a protective outcome. No appeal has been reported, nor any statement ruling one out, and no decision date exists. Full reasons are reported as due on 16 October.

For you as an investor, the legal barrier is gone but nothing has replaced it with an approval. The outcome now rests on a ministerial process with no timetable.

Can the project still be built? The numbers behind Regis’s fallback plan

The prize is substantial. Regis’s June 2026 pre-feasibility study (PFS, an early-stage engineering and economic assessment) outlines a mine producing roughly 190,000 ounces a year for close to a decade.

The two capital figures measure different things. The $1.08 billion covers spending before first production, while the roughly $1.3 billion is the wider public description of the investment.

Regis has spent the past year engineering around the problem. Its alternative design places an integrated waste landform entirely on company-owned land outside the declared area. Instead of a valley-fill tailings dam, mechanically filtered tailings would be co-disposed within the mine-waste dump.

The integrated waste landform concept replaces the valley-fill dam with co-disposal inside the waste dump, a design shift that moves the project’s critical infrastructure off the declared area and onto company-owned land.

The PFS did not disclose a strip ratio (waste moved per tonne of ore), metallurgical recovery, or a numerical cost comparison with the 2024 tailings design.

Regis Resources Managing director Jim Beyer called the ruling a “significant and positive development”, yet the company will keep advancing the alternative plan in case redetermination drags or goes against it.

The market’s response was muted. Shares traded at $7.11, up 1.14%, at 12:38 pm on 14 October. The economics rest on a $4,000/oz gold assumption and on permitting. The ruling improves the odds, but the targeted final investment decision (FID) in the first half of 2028 still depends on factors outside Regis’s control.

Who welcomed the ruling, and who is still unconvinced

Industry groups responded quickly and in unison.

AMEC’s response to the ruling framed the decision as a chance to restore confidence in project approvals, while noting that the Court addressed the lawfulness of the process rather than the merits of the heritage claim.

NSW Minerals Council Assessment processes are too complicated, inconsistent and open to spurious challenges, the council warned.

• Industry: AMEC chief executive Warren Pearce urged Watt to reconsider quickly and called it a chance to restore confidence in approvals, while stressing it was not a merits ruling. AREEA’s Steve Knott said decisions must be fair, transparent and lawful.
• Regis: Beyer cited more than two years of uncertainty and lost time.
• Wiradyuri Traditional Owners Central West Aboriginal Corporation: Reported to be disappointed but respectful of the Court’s findings.
• Orange Local Aboriginal Land Council: Reportedly neutral on the mine while emphasising protection of Aboriginal heritage.
• Belubula Headwaters Protection Group: President Daniel Sutton argued for a design avoiding the headwaters entirely, at materially greater cost.

The quieter voices complicate the picture. Reporting has described disputes among Aboriginal voices over the significance of the particular Dreaming account. These were background disputes, not findings of the Court. No independent legal or heritage expert commentary was identified in available reporting.

The split tells you that a clean legal win leaves social licence risk in place. That could shape how long, and how contested, the redetermination becomes.

What the McPhillamys ruling signals for permitting across Australia

Proponents are likely to cite the decision for one principle: ministers cannot materially expand a heritage application without restarting the statutory process. It also shows that procedural uncertainty can affect financing even after state approval.

Juukan Gorge sits at the opposite pole. There, Rio Tinto held a Section 18 approval under the Aboriginal Heritage Act 1972 (WA), and the legally authorised destruction triggered a national inquiry and reform debate.

Heritage approvals can fail on substance or on process, and investors have to price both. The ruling is not authority that heritage claims lack merit.

Heritage-related regulatory challenges are becoming a more visible feature of Australian project pipelines, and the Juukan Gorge and McPhillamys cases show the risk arriving from opposite directions, one on substance and one on process.

Remaining risks to watch:

1. A renewed declaration after a lawful reporter process
2. No ministerial decision timeline
3. $1.08 billion capital and 2028 FID tied to permitting
4. Social licence and community opposition
5. No numerical comparison of the two design options

If you hold or follow developers with pending approvals, treat Commonwealth heritage process as a separate risk layer that state approval alone does not retire.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Financial projections are subject to market conditions and various risk factors.

What the ruling settles, and what Watt still has to decide

The legal obstacle has fallen, but the approval question, the timing and the cultural dispute all sit with the minister. Three markers matter: publication of the Court’s full reasons, any announcement from Watt on a reporter process, and Regis updates on the alternative waste landform and FID timing.

For investors, the Court has clarified the process without completing it. How Watt runs the redetermination will decide whether McPhillamys moves towards 2028 or back into limbo.

Investors exploring Regis’s wider corporate position can read our full explainer on the Regis and Vault Minerals merger, which examines the gold price forces driving consolidation.