Australia sues 3M for record-breaking sum over Pfas ‘forever chemicals’ in firefighting foam
Australia is suing 3M for more than $2bn over Pfas contamination at defence sites, calling it its largest legal claim ever.
Intelligence analysis by GPT-5.4 Mini
The federal government says 3M helped drive costly contamination at Australian defence bases by withholding or misrepresenting what it knew about firefighting foam risks. Canberra is seeking more than $2bn in damages to recover cleanup and management costs.
Australia says a big company helped cause a pollution problem with firefighting foam that had hard-to-clean chemicals in it. Those chemicals can stay in the environment for a very long time, which is why people call them “forever chemicals.”
The government says fixing the mess has already cost a lot of money, because dirty soil had to be removed and water had to be treated. It is now asking 3M to help pay more than $2bn.
It is a bit like spilling sticky paint in many rooms of a house and then arguing about who should pay to clean it up. The court will decide whether 3M must pay and how much.
Analysis
What Australia alleges
The federal government says 3M and its Australian subsidiary misled authorities about aqueous film-forming foam, a firefighting product that contained Pfas. According to the government, the company withheld information about environmental effects, failed to disclose what it knew, and gave assurances about disposal and safety that did not match its internal knowledge.
The scale of the claim
Attorney General Michelle Rowland said the case seeks more than $2bn in damages, which the government described as its largest legal claim ever. The money is tied to the costs of investigating, remediating and mitigating Pfas contamination at defence estate sites. Rowland said the misconduct has already contributed to more than $1bn in costs for defence and taxpayers.
Why the cleanup is expensive
Assistant Defence Minister Peter Khalil said 28 defence bases across Australia have been affected. The response has involved removing and treating more than 200,000 tonnes of contaminated soil and using more than 13bn litres of water in a multi-year decontamination effort. Defence began phasing out Pfas chemicals in 2004, and Australia no longer uses them.
3M’s response and wider context
3M said it never manufactured Pfas in Australia and stopped selling the products in the country about two decades ago. It said Defence kept using Pfas-containing foam for nearly 20 years longer and said it would defend the claims in court. The company also points to its 2023 US$10.3bn US settlement over water pollution linked to forever chemicals.
The case lands amid wider concern about Pfas, which are persistent chemicals used in heat-, stain-, grease- and water-resistant products. They do not break down naturally, which makes cleanup difficult and costly. Greens senator Peter Whish-Wilson used the case to argue Australia should not become a dumping ground for Pfas products, and a parliamentary inquiry last year said the risk remained nationwide.
Key points
- Australia has launched legal action against 3M over Pfas contamination at defence bases.
- The federal government is seeking more than $2bn in damages, calling it its largest legal claim ever.
- Officials say 28 defence bases were affected and cleanup has already cost more than $1bn.
- 3M says it stopped selling the products in Australia about two decades ago and will defend the case.
- The case adds to global scrutiny of Pfas, which are persistent and costly to remediate.


