There is a particular kind of corporate relief that comes not from victory, but from subtraction. On Friday, Insurance Australia Group announced it had reached a confidential settlement with Greensill Bank AG and its insolvency administrators, resolving one of the most closely watched threads in Australian commercial litigation. No terms were disclosed. No admission of liability was made. The only public assurance was that the deal would not leave a material mark on IAG's finances.
For a company that has spent five years fending off claims with a face value of roughly $4 billion on the Greensill Bank proceedings alone, the ability to say that is not nothing.
But it is far from the end. Separate proceedings brought by Credit Suisse and White Oak entities against IAG and other parties remain ongoing, with the aggregate value of those claims estimated at approximately $3 billion. A five-month trial is scheduled to open in August. And the eleven interconnected Federal Court proceedings that together constitute the so-called Greensill Proceedings continue to generate rulings, disputes, and disclosures at a pace that has made them a near-permanent fixture in Australian commercial law reporting.
To understand what IAG has resolved — and what it has not — requires going back to the circumstances that created this mess in the first place.
Lex Greensill grew up in Bundaberg, Queensland, the son of a sugar cane and melon farmer. He built a supply chain finance empire that, at its peak, was valued at $3.5 billion before collapsing into insolvency in March 2021, triggering a cascade of legal disputes and regulatory investigations.
The business model was elegant in theory: Greensill would advance payment to suppliers on behalf of large corporate buyers, then package those receivables into securities sold to investors — most prominently through a suite of funds managed by Credit Suisse. To give those securities the gloss of safety, Greensill obtained trade credit insurance. That insurance was written, for a period, by Bond & Credit Co — a Sydney-based underwriting agency that was half-owned by IAG until Tokio Marine acquired it in April 2019.
Insurance transactions between BCC and Greensill were underwritten by IAG before the acquisition, and by Tokio Marine & Nichido Fire Insurance Co. afterwards. When Greensill collapsed, both insurers found themselves in the crosshairs.
The crack that eventually brought the whole structure down appeared in mid-2020, well before the public collapse. BCC notified Greensill and its broker that it would not be renewing, increasing limits, extending, or underwriting new policies for the business.
That quiet administrative decision — an insurer declining to roll over coverage — would ultimately prove to be the first domino. Greensill fought to restore the coverage, failed, and filed for insolvency protection in London and Australia in March 2021.
What followed was a legal avalanche.
The litigation that has accumulated around the Greensill collapse is not a single lawsuit. It is, in the language of the Federal Court, eleven separate proceedings being case-managed together — a sprawling multi-party dispute that has drawn in IAG, BCC Trade Credit, Tokio Marine, global broker Marsh, Credit Suisse (now folded into UBS following their August 2024 merger), White Oak Global Advisors, and Greensill Bank AG itself. Across those proceedings, claims seek over A$7 billion in damages and compensation related to insurance policies that allegedly failed to respond when Greensill's business collapsed.
The scale is staggering for a matter that traces back, at its core, to a trade credit underwriting agency in Sydney and a charismatic financier who believed he could industrialise supply chain finance. Part of the reason the numbers are so large is the layering of the original structure: BCC's underwriting manager Greg Brereton had authority to sign up to $10 billion of guarantees for Greensill between July 2019 and July 2020, but was sacked for exceeding those limits by $6 billion — guaranteeing a total of $16 billion.
That excess, and the question of who knew what and when, sits at the heart of much of what the court will examine when the trial opens in August.
IAG has not simply defended itself in these proceedings — it has gone on offence. In a significant escalation reported by Insurance Business Australia, IAG alleged in court filings that Greensill deliberately concealed the details of an insurance arrangement from BaFin, Germany's financial watchdog, in order to reduce the capital requirements of Greensill Bank, its Bremen-based banking entity.
IAG alleged that Greensill had concealed the fact that it had agreed to fund its own insurance claims when it presented a credit insurance guarantee to the regulator. The group said the move was "intended to deceive the regulator and was fraudulent." The insurer argued on this basis that the insurance offered on its behalf was invalid.
Those allegations remain untested by a full hearing. They are, however, the kind of claim that tends to define how a litigation ultimately resolves — and they illustrate why IAG has consistently maintained, despite the enormity of the claimed amounts, that its shareholders face no net exposure.
If the insurer side of the Greensill litigation has been defined by questions of policy validity and underwriting authority, the broker side has been equally turbulent. Marsh — one of the world's largest insurance brokers and Greensill's broker of record — has been drawn into the Australian proceedings over its role in placing and managing the trade credit policies, with claimants alleging the firm misrepresented the existence and validity of coverage.
Marsh attempted to contain the damage by pursuing anti-suit injunctions in the English courts — seeking to prevent Greensill from joining it to the Australian proceedings. That strategy failed. As Insurance Business Australia reported last October, the Federal Court ruled decisively that Greensill could continue its Australian claims against Marsh, with Justice Thawley rejecting the attempt to route the litigation through London.
Outside Australia, Marsh reached a settlement last year in London with White Oak, resolving a separate lawsuit in which the US private debt investor alleged the broker had repeatedly assured it that crucial Greensill insurance policies were still in force even after Marsh knew a key insurer had threatened cancellation.
The settlement came after a trial had begun in which senior Marsh executives were required to testify under oath about their dealings with Lex Greensill, and in which internal emails surfaced describing the situation as "a frightening absence of corporate governance" and "fraud." The Australian proceedings involving Marsh remain live.
Some of the most consequential recent action in the Greensill Proceedings has taken place not at a merits hearing, but in procedural skirmishes over what documents parties must hand over.
In April, the Federal Court ordered hundreds of settlement documents disclosed after White Oak successfully challenged privilege claims asserted by BCC Trade Credit and the Tokio Marine entities. Justice Moshinsky found the affidavit evidence supporting those privilege claims to be unconvincing, and was particularly unimpressed that the number of documents over which privilege was claimed shrank dramatically — and without explanation — during the hearing itself.
The court also ordered Tokio Marine to produce its communications with the Australian Prudential Regulation Authority relating to a breach notification lodged around July 2020 — the precise period when BCC was withdrawing Greensill's coverage.
That APRA thread is significant. It suggests that what regulators knew, and when, is now squarely in the frame — not just what insurers and brokers told each other.
Just ten days ago, a further front opened when Justice Thawley ordered Credit Suisse — now UBS — to hand over hundreds of previously redacted discovery documents to the other parties. The redactions had been applied by the Credit Suisse Funds and three UBS entities across thousands of documents, on grounds of Swiss and Luxembourg data protection law.
Production of the unredacted material is now due by 12 June, 2026. The court's message was unambiguous: foreign financial secrecy laws do not override Australian discovery obligations when a party chooses to litigate here.
Against that backdrop, IAG's settlement with Greensill Bank deserves careful interpretation. It does not mean IAG has conceded any liability. The insurer has said the deal will not have a material impact on its financial position or FY26 financial results, based on the settlement terms and anticipated recoveries. Given the face value of the Greensill Bank claims was approximately $4 billion, settling without material financial impact — if taken at face value — suggests the protections IAG always said it had were, for this subset of the litigation, effective.
What the settlement does do is reduce the number of active fronts before the August trial. Fewer parties at the table, in theory, means a more manageable proceeding — though with Credit Suisse/UBS, White Oak, and their combined approximately $3 billion in claims still very much in play, the complexity remains formidable.
For IAG shareholders, who have watched the stock recover strongly over the past two years on the back of strong underlying insurance performance, the news will register as a quiet positive — one less uncertainty on an already crowded risk register.
Whatever the eventual outcome, the Greensill litigation has already left a permanent mark on how the Australian insurance industry thinks about trade credit. The model that BCC operated — writing policies on behalf of insurers to cover receivables in complex structured finance transactions — was not unique to Greensill, but Greensill pushed it to extremes.
Credit Suisse told fund investors that the underlying debt was "fully insured by highly rated insurance companies," yet reportedly never spoke directly to the insurer to confirm the policies were valid or that the debt was actually covered.
That disconnect — between the assurances given to investors and the actual terms of the underlying insurance — is what years of discovery, privilege disputes, and cross-jurisdictional injunction battles have been trying to unpick. The August trial will attempt to do it definitively, under oath, in open court.
For insurance professionals, the proceedings offer a study in cascading failure: a rogue underwriter who wrote $16 billion in guarantees against a $10 billion limit; a supply chain financier that allegedly used those policies to satisfy regulators of a bank's capital adequacy; a broker accused of staying silent as coverage collapsed; and investors who were told the risk was insured when nobody had checked whether it actually was.
The trial that opens in August will not be a postscript to the Greensill affair. For Australian insurance law, it may be the main event.
