A Seabed Contractor Takes Its Regulator to Court and Wins — and Puts Sponsor-State Liability Back in Play
On 18 July 2026 the Seabed Disputes Chamber of ITLOS issued its first-ever contentious ruling, ordering the International Seabed Authority to give The Metals Company's subsidiaries due process and clarity in the ISA's own non-compliance inquiry. A resource contractor has now used investor-protection-style rights against a UN regulator, and the same company's parallel US licensing route keeps a UNCLOS-versus-Washington collision live and unresolved.
What happened
On 18 July 2026 the Seabed Disputes Chamber of the International Tribunal for the Law of the Sea (ITLOS) issued its first-ever contentious ruling, granting provisional measures in the cases brought by The Metals Company's subsidiaries NORI and TOML against the International Seabed Authority. The Chamber found unanimously that the contractors have plausible due-process and fair-treatment rights, that there is a real and imminent risk of irreparable prejudice, and it ordered the ISA to act in line with the applicable legal framework, to give the contractors sufficient clarity and information on the procedures and questions of its inquiry with a meaningful opportunity to respond, to respect the legal framework when it considers NORI's contract-extension application, and not to aggravate the dispute. The Metals Company publicised the orders on 20 July.
The ruling lands in the middle of a regime fight. The ISA opened a non-compliance inquiry into the contractors under a July 2025 Council decision, and NORI's ISA exploration contract is close to expiry, so the order arrives on top of an extension decision. The ISA said it will continue to carry out its mandate under UNCLOS Part XI and that the inquiry is not halted, only proceduralised. Running concurrently, the ISA's 31st session in Kingston was set to close in late July without adopting the exploitation regulations, the long-negotiated 'Mining Code', leaving the rulebook unfinished again. And in parallel, NOAA determined The Metals Company's US application in full compliance with the 1980 Deep Seabed Hard Mineral Resources Act on 1 May 2026, covering roughly 65,000 square kilometres of the Clarion-Clipperton Zone, with a licence decision targeted before the end of the first quarter of 2027.
Why it matters for dispute formation
The signal is the forum, not the nodules. A resource contractor has now taken its regulator to court and obtained interim relief, using due-process and fair-treatment arguments that read like the investor-protection standards of an investment treaty, inside UNCLOS's own compulsory dispute machinery rather than commercial arbitration. Commentators have called it an ISDS-like claim under the Law of the Sea, and it is the first contractor claim against the ISA to reach the Seabed Disputes Chamber. The takeaway travels well beyond the seabed: a resource authority can be judicially checked on how it runs a compliance process, and a well-advised operator will build that record from the first exchange.
For a mining board, the sharper exposure is one layer down, in who bears the liability. Sponsoring-state responsibility under UNCLOS Annex III and the 2011 ITLOS Advisory Opinion is an obligation of due diligence, and the open question the current cases press is whether responsibility travels to a home state under an 'effective control' theory, past the legal fiction that a small sponsor state controls a project whose economic parent flies a different flag. Any operator whose sponsor state and whose parent are in different countries should now assume its corporate structure, not just its permits, is a litigable fact. Add the third layer, a US licence that would sit over ISA-allocated ground, and the exposure is a two-front problem with no clean forum to resolve the overlap: contractor-versus-regulator in the Chamber, and state-versus-state over the same seabed. For counsel, the work is to map the sponsorship chain and the control test, to price the dual-track election between the ISA and the US route, and to read every offtake, financing and insurance term against a rulebook that is still being written.
Who's exposed
Exposed as the contractor that brought Cases No. 34 and 35 and won unanimous provisional measures against the ISA, while its subsidiaries sit inside the ISA's non-compliance inquiry and its US affiliate pursues a NOAA licence over overlapping Clarion-Clipperton ground. It must now manage two regulators at once and an election between the ISA and the US path.
Exposed as the UN regulator ordered to provide due process, clarity and reasonable timeframes in its own inquiry, and to respect the legal framework when it considers NORI's contract-extension application. Its authority over 'the Area' is being tested from two directions at once, and its process is now judicially supervised.
Exposed under the sponsoring-state due-diligence regime of UNCLOS Annex III and the 2011 ITLOS Advisory Opinion. The live argument is whether a home state (Canada) is responsible under an 'effective control' theory that looks past the small-state sponsor of record to where the economic parent actually sits.
Exposed as the wider field watching the precedent: China's COMRA, India, Japan's DORD, the Cook Islands' Moana Minerals, Impossible Metals and Loke on one side; and land-based nickel, cobalt, copper and manganese producers whose price decks and political cover shift if a contested seabed supply moves toward production.
The historical parallel · ITLOS Advisory Opinion No. 17 (2011) — Sponsoring-State Responsibilities in the Area
In 2011 the same Seabed Disputes Chamber, asked by the ISA Council, held that a sponsoring state's core duty is due diligence, an obligation of conduct rather than a guarantee of result, and that it is not automatically liable for a contractor's harm if it has enacted and enforced adequate laws. That Opinion built the architecture the current cases are fought inside. It defined what a sponsor owes and left open how far responsibility travels when the sponsor is a small developing state and the economic parent sits elsewhere. Fifteen years on, the Chamber has moved from advising to ordering, and the open question, whose control actually counts, is now a contested fact rather than a hypothetical. For any operator whose sponsor and whose parent fly different flags, that is the precedent that decides where liability lands.
What to watch
- Whether the ISA adopts, or again defers, the exploitation regulations at the close of its 31st session, and the road map it sets for the unfinished Mining Code.
- NORI's contract-extension decision and any further ITLOS steps, including a report-back to the Chamber.
- NOAA's timeline on The Metals Company's US permit (targeted before end-Q1 2027) and any inter-state or NGO challenge to a US licence over ISA-allocated ground.
- The 'effective control' argument, and whether Canada or other home states are drawn in beyond the sponsor of record.
Sources
- The Metals Company — TMC Welcomes Unanimous ITLOS Decisions Ordering the ISA to Respect NORI and TOML's Due-Process Rights (20 Jul 2026)
- EJIL:Talk! — Pre-Exploitation Litigation: Cases No. 34 and 35 and the Timing of Deep-Sea Mining Governance
- EJIL:Talk! — Reclaiming Authority: Forcing Seabed Mining Contractors to Choose Between the ISA and the USA
- Ocean Mining Intel — ISA responds to ITLOS Seabed Disputes Chamber provisional-measures orders
- The Metals Company — NOAA determines TMC USA's consolidated application in full compliance under DSHMRA (1 May 2026)
- ITLOS — Advisory Opinion, Case No. 17 (1 Feb 2011): Responsibilities and Obligations of States Sponsoring Activities in the Area
- International Seabed Authority — 31st Session (2026)
See the disputes forming before the market does.
Signal Watch tracks the developments. The monthly Intelligence Brief synthesizes all four signals into the disputes most likely to crystallize next — free.
Get the Intelligence BriefFor general information only; not legal advice, and no attorney–client relationship is formed through this article. Company names appear because the operators are exposed to a public development — not as a statement of wrongdoing or a predicted outcome. Figures are as reported by the linked sources.