Omni Bridgeway is backing a newly launched class action in New Zealand targeting Transpower New Zealand Limited and its contractor Omexom, following a major regional blackout that occurred in June 2024.

According to Omni's website, the outage, which affected approximately 180,000 residents and 20,000 businesses across Northland, was triggered by the collapse of a transmission tower near Glorit during maintenance activity conducted by Omexom.

Filed in the High Court in Wellington by law firms LeeSalmonLong and Piper Alderman, the case alleges negligence on the part of both defendants. The plaintiffs claim that Transpower failed to adequately oversee the maintenance, and that Omexom mishandled the work that led to the tower’s collapse.

The class action is proceeding on an opt-out basis, meaning all impacted Northland businesses are automatically included unless they choose otherwise. Under Omni Bridgeway’s funding model, there are no upfront costs to class members, and fees are contingent on a successful outcome.

The economic impact of the outage has been pegged between NZ$60 million and NZ$80 million, according to various estimates, with businesses reporting power losses lasting up to three days and in some cases longer. In the aftermath of the blackout, Transpower and Omexom jointly contributed NZ$1 million to a resilience fund for affected communities, a figure the plaintiffs argue is woefully inadequate compared to the losses incurred.

The High Court has rejected mining giant BHP’s application for an anti-suit injunction (ASI) that sought to prevent Pogust Goodhead from pursuing lawful evidence-gathering measures in the United States against the former president of the Brazilian redress scheme foundation set up after the Mariana dam collapse.

The Court found no basis to characterise Pogust Goodhead’s use of Section 1782 to seek a deposition of Mr André de Freitas, former CEO of the Renova Foundation[i] as vexatious, oppressive, or unconscionable, as argued by BHP.

In November 2024, Pogust Goodhead filed the §1782 application in the District Court of Arkansas seeking limited testimony from Mr de Freitas in relation to Pogust Goodhead’s claim arguing that BHP unlawfully interfered with Pogust Goodhead’s retainer rights and the compensation due to its Brazilian clients.  The U.S. court granted the subpoenas in January 2025.

Since then, BHP has sought to block the deposition by filing motions to quash the subpoenas in April 2025 and seeking an ASI in the High Court. A ruling from the Arkansas court is pending.

In Wednesday’s judgment, Mr Justice Waksman rejected BHP’s request for an injunction that would have halted the U.S. evidence-gathering process, finding no basis to prevent Pogust Goodhead from continuing with its §1782 discovery efforts.

Justice Waksman wrote in his decision: “I agree with PG that the depositions serve a distinct and legitimate purpose, being to better understand Renova’s role in relation to the various settlements and their form.”

Alicia Alinia, CEO at Pogust Goodhead commented: “We welcome the Court’s clear judgment. BHP has repeatedly attempted to obstruct legitimate investigations into its conduct. Mr de Freitas’s testimony is central to understanding how our clients’ rights may have been undermined. It is essential that he gives evidence. Only by hearing directly from those involved can our clients’ rights be properly safeguarded and the full truth established.”

Key Findings

• The court held that English courts do not control how parties lawfully obtain evidence abroad, and that the U.S. court is the appropriate authority to decide the scope and propriety of discovery sought under Section 1782.
• The Court also highlighted BHP’s significant delay in bringing the ASI application — nearly four months after learning of the U.S. subpoenas — which weighed against granting any injunctive relief.
• Any concerns about the scope of the subpoenas, alleged misstatements, or burden on the witness are squarely matters for the U.S. District Court, which has already engaged with the issues in detailed hearings.

As a result, BHP cannot use the English courts to derail the ongoing U.S. process. The parties now await the District Court of Arkansas’s decision on whether BHP’s motions to quash the subpoenas will succeed.