Rio Tinto Moves Closer To Full ERA Ownership After Court Ruling

5 min read | June 08, 2026 11:14 AM AEST | By Sam

Highlights

  • The Federal Court has approved Rio Tinto’s compulsory acquisition of remaining Energy Resources of Australia shares.
  • Minority shareholder objections were rejected, allowing the acquisition process to proceed.
  • ERA shares are expected to face trading suspension as the buyout process advances.

Rio Tinto has secured Federal Court approval to compulsorily acquire remaining ERA shares, advancing its path to full ownership of the company.

Australia’s resources sector has witnessed a significant development following a Federal Court decision involving Rio Tinto Limited (ASX:RIO) and Energy Resources of Australia Ltd (ASX:ERA). The ruling clears the path for Rio Tinto to complete the compulsory acquisition of remaining ERA shares, marking another major step in the restructuring of one of Australia's long-standing uranium-linked mining businesses.

As a leading global miner and constituent of the ASX 20, Rio Tinto continues to reshape its portfolio while maintaining a strong position across Australia's ASX Metal & Mining Stocks sector.

Federal Court Approves Acquisition Plan

Rio Tinto Receives Legal Backing

The Federal Court of Australia has approved Rio Tinto's application to compulsorily acquire all remaining ordinary shares in Energy Resources of Australia.

The decision follows legal proceedings initiated under provisions of the Corporations Act after Rio Tinto issued its acquisition notice earlier this year.

The ruling removes a major hurdle for Rio Tinto's efforts to consolidate ownership of ERA.

Minority Objections Overruled

The court's decision came despite formal objections lodged by minority shareholders.

These shareholders collectively represented a significant portion of the remaining shares not already controlled by Rio Tinto.

Following the judgment, the objections were dismissed, enabling the acquisition process to continue under the terms previously outlined.

What The Decision Means For ERA

Buyout Process Advances

With court approval secured, Rio Tinto can proceed with acquiring the remaining shares it does not already own.

The transaction effectively moves ERA closer to becoming wholly owned by Rio Tinto.

The decision also signals the next phase of the acquisition process, which includes regulatory and market-related steps before completion.

Trading Suspension Approaches

Following the ruling, ERA securities are expected to be automatically suspended from trading on the ASX after the specified transition period.

Trading will continue until the suspension date takes effect.

After that point, normal market trading of the company's shares will cease as the compulsory acquisition process progresses.

Why ERA Has Remained In Focus

A Long History In Australian Mining

Energy Resources of Australia has long been associated with uranium mining activities in Australia.

The company played an important role in the country's uranium industry and has remained closely connected to developments in the resources sector for decades.

However, operational and financial challenges in recent years have reshaped the company's future direction.

Rio Tinto's Existing Ownership Position

Rio Tinto already held a controlling stake in ERA before commencing the compulsory acquisition process.

The latest court ruling strengthens the mining giant's position and simplifies the pathway towards complete ownership.

This development aligns with broader corporate restructuring efforts surrounding ERA.

Market Implications

Reduced Public Market Presence

Once the acquisition process is finalised, ERA's presence as a publicly traded company will effectively come to an end.

The transition represents another example of corporate consolidation within Australia's resources industry.

For market participants, the focus now shifts towards the completion timetable and any remaining procedural steps.

Appeal Period Remains Relevant

Although the Federal Court has approved the acquisition, a formal appeal period remains in place.

This allows affected parties an opportunity to review the decision and consider any available legal options.

The company is expected to remain on the ASX official list during this period before any final removal process occurs.

Rio Tinto Continues Portfolio Evolution

Strategic Portfolio Management

Large mining companies frequently review and restructure assets to align with long-term strategic objectives.

The ERA acquisition forms part of Rio Tinto's broader approach to portfolio management and asset ownership.

Full ownership can simplify decision-making processes and provide greater control over future asset-related outcomes.

A Major Global Mining Group

Rio Tinto remains one of the world's largest diversified mining companies, with exposure to commodities including iron ore, copper, aluminium and critical minerals.

Its scale and global operations continue to make it one of the most closely followed resource companies on the Australian market.

The ERA transaction adds another chapter to the company's ongoing portfolio evolution.

What Happens Next?

Several developments are likely to remain important:

  • Completion of the compulsory acquisition process
  • Expiry of the appeal period
  • Suspension of ERA share trading
  • Final ownership transition
  • Future announcements relating to ERA's status

These steps will determine the final timetable for completing the transaction.

A Significant Moment For ERA

The Federal Court's decision represents a major milestone in Rio Tinto's efforts to acquire full ownership of Energy Resources of Australia.

The ruling clears the way for the compulsory acquisition process to move forward, despite opposition from minority shareholders.

As the transaction progresses, attention will remain focused on the remaining procedural steps, including trading suspension and the conclusion of the appeal period.

For Rio Tinto, the outcome further strengthens its control over ERA while continuing its broader portfolio management strategy within Australia's mining sector.

Frequently Asked Questions

  • What did the Federal Court approve?
    The court approved Rio Tinto’s compulsory acquisition of the remaining ERA shares.
  • What happens to ERA shares next?
    ERA shares are expected to be suspended from trading as the acquisition process proceeds.
  • Why is Rio Tinto acquiring ERA?
    The acquisition allows Rio Tinto to move towards full ownership and greater control of the company.

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