Rio Tinto commits $1.9 billion to Kangwinan bauxite project in Queensland

Overview

Updated Oct 25

Rio Tinto approved a US$1.9 billion investment on October 23, 2026 to build the Kangwinan bauxite mine on Western Cape York in Queensland. The mine adds 20 million tonnes of annual capacity, lifting Weipa's total to about 44 million tonnes from roughly 38 million today.

Kangwinan replaces the Andoom mine, which runs out this decade, and offsets the planned 2029 shutdown of Gove in the Northern Territory. Ore will move on a 15-kilometre conveyor to an expanded wharf at Amrun that can take larger capesize vessels. First ore is targeted for 2029, with full production by 2032.

Why it matters

If Kangwinan slips, Rio Tinto's Australian alumina refineries lose a key ore source as Andoom and Gove shut down this decade.

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Key Indicators

$1.9B

Total investment

Includes $150 million for early works pre-approved in 2025.

20M tonnes

New annual bauxite capacity

Gross capacity added at Weipa, replacing Andoom's declining output.

44M tonnes

Weipa total annual capacity

Up from current production of about 38 million tonnes per year.

6M tonnes

Net gain to Weipa output

The gap between 44 and 38 million tonnes; most of Kangwinan's ore replaces Andoom rather than adding new supply.

22%

Expected internal rate of return

Based on third-party market forecasts as of Q4 2026.

Voices

Curated perspectives — historical figures and your fellow readers.

People Involved

Jérôme Pécresse

Chief Executive, Aluminium & Lithium, Rio Tinto

Leading the Kangwinan development

Organizations Involved

Rio Tinto

Mining company

Developer of Kangwinan

Anglo-Australian mining company with bauxite, alumina, and aluminium operations across Australia.

Bechtel

Engineering and construction company

Delivery partner for Kangwinan construction

US-based engineering firm hired to deliver the Kangwinan construction.

Wik Waya Traditional Owners

Indigenous community

Named the project, consulted on development

Traditional owners of the land where Kangwinan will operate. The project name comes from their language.

Timeline

2025 2032

6 events Latest: October 23rd, 2026 · 3 weeks ago

Tap a bar to jump to that date

2032
Full production expected
Upcoming Milestone

Weipa reaches about 44 million tonnes annual capacity.
2032
2029
First ore targeted; Gove mine closure planned
Upcoming Milestone

Kangwinan first output targeted as Andoom ends and Gove shuts down.
2029
2027
Construction ramps up
Upcoming Construction

Bechtel leads construction, supporting more than 1,300 jobs.
2027
October 2026
Rio Tinto approves $1.9 billion Kangwinan investment
Latest Investment

Final investment decision targets first ore in 2029 and full production by 2032.
October 23rd, 2026
September 2026
Rio Tinto agrees to acquire Aurukun Bauxite Project
Acquisition

Agreement to buy Aurukun from Glencore (70%) and Mitsubishi (30%), subject to government approvals.
September 2026
2025
Early works begin at Kangwinan
Construction

Early works start with $150 million pre-approved by Rio Tinto.
2025

Scenarios

Kangwinan delivers first ore in 2029

Likely Resolves by End of 2029

Discussed by: Rio Tinto guidance; Citi notes the capex is already in mid-term guidance

Rio Tinto targets first output in 2029 with construction ramping up in 2027. Environmental permits are secured through the South of Embley Environmental Impact Statement, and early works began in 2025. The project carries a 22% expected internal rate of return.

Aurukun acquisition completes, extending Weipa beyond mid-century

Likely Resolves by End of 2027

Discussed by: Rio Tinto

Rio Tinto agreed in September 2026 to acquire the adjacent Aurukun Bauxite Project from Glencore (70%) and Mitsubishi (30%), subject to government approvals. Combined Amrun, Kangwinan, and Aurukun operations would support Weipa beyond 2050.

Delays push Kangwinan first output past 2029

Possible Resolves by End of 2029

Discussed by: Australian Financial Review; mining analysts

Large mining projects often slip on schedule. If construction or approvals stall, first ore could move past 2029, tightening bauxite supply as Andoom and Gove close. The Australian Financial Review reported the project at about A$2.7 billion, reflecting currency conversion.

Kangwinan barely moves the capesize freight market

Likely Resolves by End of 2032

Discussed by: SEB analysts

SEB puts the net addition to seaborne bauxite at about 6 million tonnes, because most of Kangwinan's 20 million tonnes replaces Andoom ore. Australian cargoes to China also sail roughly 3.3 times shorter distances than Guinea-to-China routes, so extra Queensland volumes would not add much tonne-mile demand.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2013-2018

Amrun mine development (2013-2018)

Rio Tinto approved the Amrun mine, then called South of Embley, in 2013 as its previous Weipa expansion. The project cost about $1.9 billion and shipped first ore in late 2018, replacing the East Weipa mine.

Then

Amrun extended Weipa's life and became its main production center, with a wharf and processing facilities.

Now

Amrun set the pattern for Weipa expansions: a new mine replacing an aging one, using existing infrastructure.

Why this matters now

Kangwinan follows the same playbook, building 15 kilometers from Amrun and using its expanded wharf and stockyard.

2014-2029

Gove mine closure (planned 2029)

Rio Tinto's Gove bauxite mine in the Northern Territory has operated for decades, but its alumina refinery closed in 2014. Bauxite mining continued until Rio Tinto announced plans to end production in 2029.

Then

Gove's closure removes a source of bauxite supply for Rio Tinto's customers and refineries.

Now

Kangwinan is designed partly to compensate for Gove's loss, keeping supply flowing.

Why this matters now

The Kangwinan announcement explicitly cites Gove's 2029 closure as a reason for the investment.