Rio Tinto has sold two 89,892 dwt post-panamax bulkers en bloc for $42.8m, extending the mining group's 2026 owned-vessel disposal beyond the newcastlemax fleet it cleared earlier in the year.

Broker reports list the 2013-built RTM Dias and RTM Flinders at $21.4m each. Namura in Japan built both hulls. Current fleet records place RTM Flinders under Rio Tinto Shipping Asia ownership with Rio Tinto Shipping management. Rio Tinto Shipping took delivery of RTM Dias at the same Japanese yard in 2013.

What does the post-panamax sale change?

The transaction widens a divestment track that earlier in 2026 concluded with the disposal of Rio Tinto's last two newcastlemaxes. Yasa Shipping acquired RTM Drake and RTM Tasman, completing the exit from an eight-ship, 205,000 dwt-class newcastlemax segment. Six other newcastlemaxes had previously left the fleet under the same programme.

The move into post-panamax tonnage indicates that the miner's retrenchment from direct shipowning is not confined to its largest units. For bulker owners and sale-and-purchase brokers, two 89,000 dwt Namura hulls entering the market add to a 2026 pipeline already absorbing miner-controlled tonnage.

How big is the chartering operation behind the sell-down?

Rio Tinto's latest marine figures put the group at more than 230 chartered vessels, moving over 300m tonnes of cargo across roughly 2,700 voyages a year. The owned-fleet reduction therefore trims directly-held tonnage without disturbing the chartered base that underwrites its iron-ore, bauxite and copper concentrate flows.

That split — a contracting owned book alongside a large chartered programme — frames the commercial logic. Rio Tinto's chartering desks have long favoured time-charter optionality over asset exposure, particularly on cape-size and newcastlemax sizes where long-term offtake with Asian steel mills anchors demand.

What are the read-throughs for shippers and tonnage providers?

• Two 89,000 dwt post-panamaxes now sit in the resale market, marginally enlarging dry-bulk supply in a year of active miner disposals.
• The $21.4m-per-ship price points to softer secondhand values for 13-year-old Namura tonnage in a segment where Chinese and Greek buyers have absorbed similar age post-panamaxes for iron-ore and grain trades.
• Rio Tinto's residual owned fleet — handy and handymax units plus any remaining cape-size exposure — remains under review, with no public statement on further sales.

Broker reports circulating this week did not identify the buyer, delivery dates or the onward employment plans for RTM Dias and RTM Flinders.

What to expect next

The question now is whether the post-panamax clearance marks the start of further disposals across the remaining dry-bulk segments on Rio Tinto's books, or a one-off trim of older tonnage ahead of an expected tightening of emissions regulations on bulk carriers. Chartering rates on the transpacific and Brazil-China iron-ore routes through the rest of 2026 will determine how aggressively the miner continues to monetise its directly-held fleet.