Australia’s Federal and NSW governments agreed on a $2.5 billion package to keep Rio Tinto’s Tomago aluminium smelter operating
Australia’s Federal and NSW governments agreed on a $2.5 billion package to keep Rio Tinto’s Tomago aluminium smelter operating. Rio Tinto said it would shut the Hunter Valley smelter at end-2028 without an affordable electricity deal. The deal includes up to $1.225 billion from NSW, supports new power generation (including Snowy Hydro), and runs to 2039 with profit sharing tied to sustained high aluminium prices.
How this was made

The 30-second read
Why it matters
The package is framed as a power-purchasing agreement supported by government-backed investment in new generation (wind and solar with storage and gas) and potentially Snowy Hydro, with a revenue-sharing element that could return value to taxpayers if aluminium prices stay high.
Market read
For traders, the key new information is the agreed scale ($2.5B) and the linkage to Rio Tinto’s previously stated shutdown threat, which reduces operational tail risk for the asset.
What to watch
The article does not disclose the exact electricity pricing formula, contract duration mechanics, or capex/dispatch obligations, which are key to translating the subsidy into Rio Tinto’s margin and cash flow.
Background
Federal and NSW governments reportedly settled after months of negotiations to keep Rio Tinto’s Tomago aluminium smelter operating, following Rio Tinto’s threat to shut it down at end-2028 without an affordable electricity deal.
Ticker impact
Rio Tinto threatened to shut the Tomago aluminium smelter at end-2028 unless it secured an affordable electricity deal, prompting a $2.5B government package.
Near-term sentiment likely positive for RIO on reduced operational shutdown risk; magnitude uncertain without disclosed contract terms.
The article is a first report of a large, time-sensitive government intervention tied to Rio Tinto’s stated threat, but it does not provide detailed commercial terms beyond the headline $2.5B and broad structure.
Market effects
Signals continued government support for energy-intensive heavy industry via power-purchasing agreements and renewable-plus-storage buildout, which can influence expectations for other smelters’ power-cost risk.
Hunter Valley employment and industrial investment are directly supported through 2039, reducing local economic downside risk tied to a potential closure.
Could marginally affect global aluminium supply expectations only if the arrangement materially extends operating life; the article frames it as national capability protection rather than export expansion.
Counterpoint
The deal may be politically motivated and complex, so the effective economic benefit to Rio Tinto could be smaller than implied if revenue-sharing triggers are limited or if electricity pricing assumptions change.
Key entities
- companyRio Tinto
Owner/operator of the Tomago aluminium smelter that threatened shutdown absent an affordable electricity deal.
- assetTomago aluminium smelter
Hunter Valley facility employing about 1,000 people and described as Australia’s biggest electricity user.
- governmentFederal and NSW governments
Agreed on a $2.5 billion package to secure the smelter’s operation through 2039 and support electricity system investment.


