Cargo Liquefaction and the Shipper's Liability: What the Ocean Winner Sinking Means for Indian Iron Ore Exporters

On 20 August 2026 the Panama-flagged bulk carrier Ocean Winner, a 225-metre, 72,928 dwt vessel, sailed from Paradip Port on the Odisha coast with around 72,200 tonnes of iron ore fines and 24 crew aboard. Three days later the Maritime Rescue Coordination Centre was notified at about 11:48 local time that communication was lost. The ship went down roughly 240 nautical miles off Paradip. Two survivors were recovered by the tanker Aisopos; hopes for the other 22 crew faded over the following days.

What makes the casualty unusual is the speed. Reporting describes a vessel that tilted suddenly and was gone in about eight minutes, which is not the profile of hull failure, flooding through a breached plate, or a shifted stow of dry ore. It is the profile of a cargo that stopped behaving as a solid.

Two details from the pre-loading period drew the attention of surveyors. The vessel had reportedly been waiting to load since 3 August, and the Paradip area saw heavy rainfall in the days before loading. Experts quoted in the aftermath said excess moisture in the iron ore fines may have caused cargo liquefaction. No formal casualty finding was available at the time of writing, but the working hypothesis was clear enough within 48 hours to change how Indian shippers should think about their own exposure.

Liquefaction is a mechanical failure in a granular cargo, not a chemical one. A fine-grained bulk cargo loaded with enough water in the pore space behaves as a solid at rest. Under the vibration and rolling a vessel supplies at sea, the particles consolidate, pore-water pressure rises, the grain-to-grain contact that gives the pile its shear strength is lost, and the cargo begins to behave as a heavy fluid. The free surface then shifts on a roll and does not come back. The vessel takes a list, the cargo migrates further, and stability is gone. There is no gradual warning stage a master can react to, which is why these casualties produce so few survivors.

The International Maritime Solid Bulk Cargoes (IMSBC) Code, mandatory under SOLAS Chapter VI, sorts solid bulk cargoes into three groups. Group A covers cargoes that may liquefy if shipped above their transportable moisture limit, Group B those with a chemical hazard, Group C neither. Iron ore fines has its own Group A schedule, added after a run of bulker losses on the ore trades, alongside the other Indian Group A exposures: iron ore concentrate, fine-fraction bauxite, nickel ore and several mineral concentrates.

Every Group A shipment turns on two figures. The transportable moisture limit (TML) is the maximum moisture content at which the cargo is considered safe to carry in a ship not specially fitted for liquefiable cargo, and for most Group A cargoes it is set at 90 per cent of the flow moisture point. Against it sits the actual moisture content of the parcel as presented for loading. If the second reaches the first, the cargo must not be loaded, and that is not the master's to negotiate away.

Under SOLAS Chapter VI and the IMSBC Code, the shipper must give the master cargo information before loading begins. For a Group A cargo that means a signed declaration of the bulk cargo shipping name, the group, the TML and the moisture content, supported by test certificates.

Sampling and testing windows

The Code sets time limits because moisture is not a stable property of a stockpile:

1. The TML certificate must rest on a sample tested within six months of loading, and be redone if the cargo's composition or characteristics change.
2. The moisture content certificate must rest on sampling and testing carried out as near as practicable to loading, and in any event within seven days before it.
3. Where rain or snow falls between the moisture test and completion of loading, check tests must confirm the cargo is still below the TML.

Hold that third rule against the reported facts at Paradip. A vessel waiting to load since 3 August and a port area that saw heavy rainfall in the days before loading is the pattern the check-test requirement exists for. An exporter whose file shows a moisture certificate dated well before loading, no check test after the rain and an uncovered stockpile has a documentary problem any surveyor will find.

The can test is a screen, not a defence

The Code also provides a shipboard test, the can test, in which a sample is part-filled into a cylindrical container and struck repeatedly against a hard surface. Free moisture or a fluid condition at the surface signals that the cargo may be above its flow moisture point and that loading should stop pending laboratory testing. Masters have saved their ships by refusing cargo on the strength of one. It is a rough screen rather than a substitute for the shipper's certificates, and no shipper can defend a wet-cargo claim by saying the can test passed.

When a bulker is lost with a Group A cargo aboard, recovery runs in one direction: from the shipowner and its protection and indemnity (P&I) club down the chain to whoever declared the cargo.

Under the Indian Carriage of Goods by Sea Act, 1925, which gives effect to the Hague Rules in Indian carriage, the shipper warrants the accuracy of the particulars it furnishes for the bill of lading and indemnifies the carrier against loss arising from inaccuracies. A cargo liable to become dangerous in the ordinary course of carriage is treated as dangerous cargo, and a shipper that ships it without the carrier's informed consent answers for the damages and expenses that follow. Charterparty terms in the ore trades routinely put the same burden on the shipper or the charterer.

Quantum is where this stops resembling a cargo claim. On a total loss the claim against the shipper can take in the hull and machinery value of the vessel, pursued by hull underwriters through subrogation; charter earnings for the balance of the fixture; wreck location, marking and removal; pollution response; crew death and injury claims; and the owners' salvage and legal spend. None of it is capped by the invoice value of the ore, and the limitation regime under the Merchant Shipping Act, 1958 is built for shipowners rather than cargo shippers to invoke. Our note on limitation of liability and cargo recovery sets out how those limits work and who can rely on them.

FOB does not end the exposure

Most Indian ore moves FOB. Risk in the goods passes once the cargo is aboard, and the exporter's insurable interest in the ore ends there. Exporters read that as the end of their involvement. Risk in the goods and liability as the declaring shipper are separate things: whoever is named as shipper on the bill of lading and signed the IMSBC declaration stays answerable for it long after the ore has ceased to be its property.

The instinctive response is to point at the marine cargo policy. It will not answer the claim, for two reasons.

It insures the goods, not the liability

A marine cargo policy written on Institute Cargo Clauses is a first-party property cover on the parcel. It indemnifies the assured for physical loss of or damage to the insured goods and responds to general average and salvage contributions. It does not indemnify the assured against liability for damage the cargo causes to the carrying vessel, to other cargo, or to persons aboard. A cargo policy is not a third party liability cover.

Even the goods claim can fail

Where the exporter has retained risk in the goods, the claim for the ore itself still meets the exclusion architecture of the clauses. All three sets exclude loss caused by inherent vice or the nature of the subject matter insured, and a cargo that liquefied because it was shipped wet is close to a textbook inherent-vice argument that underwriters do raise. The competing analysis is that the proximate cause was the perils of the sea that agitated the cargo, and the point turns on evidence about moisture at loading, sea state and the surveys.

The clauses also carry an unseaworthiness exclusion that bites where the assured or its servants are privy to the unseaworthiness of the vessel when the cargo is loaded. Loading above the TML is what makes the vessel unseaworthy in these casualties, so a shipper-assured who knew or ought to have known the cargo was wet sits inside that exclusion.

An exporter holding a marine cargo open cover, a certificate per shipment and nothing else is uninsured for the exposure this casualty illustrates. The gap is structural, not a matter of limits.

Closing the gap needs liability cover, placed against the role the Indian party actually plays. The relevant products sit in the marine liability space rather than the cargo space:

• Shippers' liability or cargo owners' legal liability cover, answering claims by carriers and third parties arising out of the condition or declaration of the cargo shipped.
• Charterers' liability cover, where the Indian party fixes the vessel. This is the standard route for traders, written by the P&I clubs and the fixed-premium charterers' market, and it usually bundles damage to the chartered vessel, cargo liability, pollution and defence costs.
• Terminal operators' and stevedores' liability cover for the port-side entities that stockpile, handle and load, exposed on a separate limb: negligent handling that raised moisture content.

Set the limit against the realistic worst case rather than the cargo value. Hull damage on a supramax or panamax bulker plus wreck and crew claims is not a limit you derive from a freight invoice.

Points to check in the policy wording

1. Whether the insured's business as defined captures the exact role played: shipper of record, FOB seller, charterer, stevedore.
2. Whether damage to the carrying vessel is covered, or excluded as property in the insured's care, custody or control.
3. Whether crew death and injury claims flowing from a cargo failure sit inside the cover.
4. Whether cover is claims-made or occurrence, since the recourse claim can take two to three years to arrive.
5. Whether a condition requires IMSBC Code compliance, and what a breach does to the cover.

That last point protects the exporter that follows the Code and abandons the one that does not, the same incentive that runs through misdeclared dangerous-goods cover; our playbook on misdeclared DG cargo claims covers the container-side equivalent. Sale contracts should also carry an express warranty that the cargo will be presented below its TML with current certificates, an indemnity behind it, and a right to call for check tests at the seller's cost.

The Indian ore trades load through a monsoon that soaks stockpiles for months. Prevention here is operational and physical, and it is the part of this exposure the exporter fully controls.

• Store export fines under cover, or on graded, drained pads that shed water. An uncovered stockpile that sat through heavy rain is evidence against you whatever the certificate says.
• Sample the parcel that will actually be loaded, on a plan that reflects the stockpile's variability, not a composite from an earlier campaign.
• Use an accredited laboratory for the TML and moisture determinations, and keep chain-of-custody records with the certificates.
• Re-test after any rainfall between certification and loading, and retain the results even when the reading is comfortable.
• Suspend loading in rain and hold hatch-closure discipline at the berth. A parcel that passed at the stockpile can go over the limit in the hold.

The file that defends an exporter two years after a casualty is built at the berth: the signed IMSBC declaration, the TML and moisture certificates with their sampling dates, the laboratory's methodology, check-test records, port rainfall data for the loading window, photographs of the stockpile and the loading operation, and the master's or the surveyor's can test records. Our note on marine cargo claim documentation covers the general file. An independent draft and moisture surveyor at the load port adds a contemporaneous third-party record for a fraction of a percentage point of cargo value, which is the cheapest liability mitigation an ore exporter can buy.

The first two weeks after a casualty set the shape of everything that follows.

1. Notify every insurer that could conceivably respond, on the day: the marine cargo insurer, any liability insurer, and the broker. A late notification is a coverage argument you do not want.
2. Freeze the loading file. Preserve the IMSBC declaration, certificates, sampling and laboratory records, weather data, berth logs, correspondence with the trader and agents, and internal messages about the stockpile. Issue the document-hold instruction in writing.
3. Retain stockpile samples from the same lot. They are the most useful physical evidence a shipper defending a liquefaction allegation can have, and they are usually dispersed within weeks unless someone acts.
4. Route survey requests through your broker and lawyers. Owners' interests and the P&I club will seek load-port records, remaining stockpile and laboratory access.
5. Read the bill of lading to establish who the shipper of record is, then assess whether the claim will exceed your liability limits and tell the board. A hull, wreck and crew claim on a lost bulker is a balance-sheet event for a mid-sized exporter, not a claims-department matter.

The wider point for the Indian ore trade is that this casualty is a cargo story that destroyed a ship. The controls that prevent it, moisture testing, check tests after rain, covered storage and honest declarations, are cheap, and the cover that responds when they fail has to be bought before the vessel sails.