Rio Tinto targets larger capesizes in $1.9bn Australian bauxite push

Mining giant Rio Tinto has approved a $1.9bn investment in a major bauxite expansion in Australia’s Queensland state, including an upgrade of its export facilities to accommodate larger capesize bulk carriers.

The Kangwinan project on the western Cape York Peninsula will add 20m tonnes of annual bauxite production capacity, with first output targeted for 2029 and full production expected by 2032.

The development will replace production from the ageing Andoom mine near Weipa, which is expected to reach the end of its life this decade, while also helping offset the planned closure of the Gove operation in the Northern Territory in 2029.

Once fully operational, Kangwinan will lift annual capacity at Rio Tinto’s Weipa operations to around 44m tonnes, compared with current production of approximately 38m tonnes.

The new mining centre will be located about 15 km southeast of Rio Tinto’s existing Amrun mine. A 15 km conveyor system will transport bauxite to expanded stockyards and the Amrun export wharf, which will be upgraded to handle larger capesize vessels.

The mining group said the port expansion would improve shipping efficiency and reduce freight costs, strengthening its ability to supply overseas customers and Australian alumina refineries.

Despite the larger vessels and additional mining capacity, analysts at SEB see limited upside for the capesize market from the investment.

The bank noted that much of the new production will replace output from existing mines, leaving a relatively modest increase of around 6m tonnes compared with current Weipa production levels. Any additional volumes are also several years away.

SEB further pointed out that shipments from Australia to China involve voyages roughly 3.3 times shorter than those from Guinea, where surging bauxite exports have been a major driver of capesize tonne-mile demand.

The bank argued that additional Australian volumes could therefore work against the shift towards longer-haul Guinea-China trades, with the overall impact on dry bulk shipping likely to be negligible.

Construction at Kangwinan is scheduled to accelerate in 2027, with the investment including $150m already approved for early works last year.

The latest commitment follows Rio Tinto’s September agreement to acquire the neighbouring Aurukun bauxite project from Glencore and Mitsubishi, subject to regulatory approvals. The company intends to integrate the deposit into its longer-term development plans for the region, using existing and planned infrastructure.

Bauxite’s growing importance to dry bulk shipping will be reflected at next April’s Geneva Dry, the world’s premier commodities shipping conference, with a standalone Bauxite Blitz session. Scheduled for April 28, the discussion will examine the expanding trade, shifting supply patterns and implications for future capesize demand. Confirmed speakers include Ernst Meyer, president and CEO of Torvald Klaveness, and Robert Haggquist, charterer and decarbonisation lead at South32. Braemar’s Derek Langston will moderate the session.

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