Pogust Goodhead has made a major strategic move in the wake of its landmark legal victory against mining giant BHP, recruiting veteran commercial litigator Jonathan Wheeler, formerly head of litigation at Morrison Foerster (MoFo) London, to lead the next phase of the Mariana dam collapse group action—one of the largest and most complex mass claims in English legal history.

The appointment comes just days after the High Court issued a historic ruling holding BHP liable for the 2015 disaster, opening the door to billions in potential damages for more than 600,000 Brazilian claimants affected by what has been called Brazil’s worst environmental catastrophe.

Background: The Mariana Dam Disaster

On 5 November 2015, the Fundão tailings dam in Mariana, Minas Gerais, Brazil, collapsed, releasing millions of cubic meters of toxic mining waste.

The consequences were catastrophic:

• 19 deaths
• entire villages destroyed
• widespread contamination of the Doce River
• long-term ecological devastation across two Brazilian states
• economic collapse in affected communities
• displacement of thousands of families

The disaster triggered global outrage and raised urgent questions about mining safety standards and corporate accountability.

Landmark High Court Ruling Explained

The recent UK High Court decision represents a watershed moment in international environmental litigation.

The Court ruled that:

• BHP could be held liable in English courts despite the disaster occurring in Brazil
• claimants could pursue compensation collectively
• previous legal barriers preventing the case from proceeding were removed

The ruling is significant because it:

✅ expands jurisdictional reach over multinational corporations
✅ strengthens access to justice for foreign victims
✅ sets a precedent for future cross-border environmental and human rights cases

Legal analysts describe the decision as a major shift in corporate accountability, making it harder for global companies to avoid liability based on geography.

Who Is Jonathan Wheeler?

Wheeler brings nearly two decades of high-level litigation experience, including:

• 15 years as MoFo’s head of London litigation
• 7 years as co-managing partner of the London office
• leadership of complex cross-border disputes
• expertise in:
  • civil fraud and asset tracing
  • high-value commercial litigation
  • international trust disputes
  • contentious insolvency
  • investigations

He is widely regarded as a “heavyweight” operator in the UK legal market.

Why His Appointment Matters Now

The Mariana case has now entered its most challenging stage: damages and quantification of losses.

This phase involves:

• assessing economic and personal losses for over 600,000 claimants
• tracing and securing assets across jurisdictions
• managing large-scale litigation logistics
• negotiating or enforcing compensation at unprecedented scale

Wheeler’s experience in multi-jurisdictional disputes and high-stakes litigation positions him to drive strategy as the case enters a potentially multi-billion-dollar compensation phase.

Pogust Goodhead chairman Howard Morris called the hire “exactly the kind of senior figure we need after our historic liability victory.”

Financial Stakes: How Much Could BHP Pay?

While official damage valuations are ongoing, analysts estimate potential exposure in the tens of billions of dollars, making this one of the most expensive environmental cases in history.

Potential financial outcomes include:

• individual compensation payouts
• community reconstruction funds
• environmental restoration costs
• long-term monitoring commitments
• penalties and legal fees

BHP shareholders and investors are watching closely as the ruling could have:

• significant balance sheet impact
• reputational consequences
• implications for future operations and regulation

Internal Shake-Up at Pogust Goodhead

Wheeler’s arrival follows a period of internal restructuring within the firm.

Recent developments include:

• departure of co-founder and former CEO Tom Goodhead
• reported tensions with financial backer Gramercy
• $553 million investment partnership in 2023
• majority share control shifting to turnaround specialist Huw Dolphin
• addition of new board members, including former Dentons CEO Howard Morris

The leadership reshuffle aims to provide:

✅ stronger governance
✅ experienced management oversight
✅ improved financial stability

CEO Alicia Alina stated that the firm is bringing in senior disputes talent globally to create a “more resilient firm capable of delivering justice at scale.”

Impact on Brazilian Claimants

For the hundreds of thousands affected, the ruling and leadership strengthening represent renewed hope.

Claimants include:

• displaced families
• fishermen who lost livelihoods
• businesses destroyed by contamination
• indigenous communities along the river basin

Key damages being assessed:

• property loss
• income loss
• environmental harm
• emotional and psychological damages
• community reconstruction needs

Many communities have waited nearly a decade for meaningful compensation.

Timeline: Key Events 2015–2025

2015
– Mariana dam collapse devastates region

2016–2018
– initial investigations and lawsuits filed in Brazil

2019
– UK litigation initiated against BHP

2022
– procedural hurdles delay case

2023
– Gramercy investment partnership announced

2024
– leadership changes at Pogust Goodhead

2025
– UK High Court rules BHP liable
– Wheeler appointed to lead litigation

Expert Commentary: Why This Case Matters Globally

Legal observers say the ruling could reshape:

• multinational corporate liability
• environmental litigation strategy
• access to justice across borders

It signals a growing trend: courts holding corporations accountable in jurisdictions where victims can actually obtain remedies, rather than where the harm occurred.

Environmental and human rights advocates have called the decision:

“one of the most important corporate accountability judgments of the decade.”

Global Implications

The case could influence:

• future environmental disaster claims
• mining industry regulation
• ESG (environmental, social, governance) expectations
• investor risk assessments

Multinational companies may face increased scrutiny regarding:

• safety standards
• environmental compliance
• cross-border legal exposure

What Happens Next?

The damages phase will involve:

• detailed loss assessments
• expert evaluations
• potential settlement negotiations
• continued court oversight

Given the scale, the process could take several years, though the recent ruling increases pressure for a settlement.

Wheeler is expected to:

• refine litigation strategy
• coordinate international legal teams
• manage negotiations
• oversee claimant compensation structures

Conclusion

Pogust Goodhead’s recruitment of Jonathan Wheeler marks a decisive step in consolidating leadership and strengthening its position after a historic liability ruling against BHP.

With billions at stake and global attention focused on the case, Wheeler’s expertise may prove crucial in delivering long-awaited justice for hundreds of thousands of Brazilian victims and shaping the future of corporate accountability worldwide.