The Korea-US Investment Deal and the Westinghouse Repricing: A Paired Idea in Cameco and Doosan Enerbility

Korea Invest Insights

South Korea’s industry ministry reports the results of the US investment negotiation to the National Assembly on September 22 and plans to push for a first memorandum of understanding on September 23. Of the $350 billion package, the composition of the $200 billion in strategic investments beyond the $150 billion for shipbuilding is now being effectively settled.

The largest single item inside it is nuclear. Construction of up to eight large reactors in the US is under discussion, and at roughly $15 billion per unit that comes to about $120 billion. If this deal closes, who gets paid? Split the answer into equity and equipment, and it converges on Cameco and Doosan Enerbility.

Facts: the shape of the negotiation

A week of reporting gives the outline below.

Item	Content	Source
Package total	$350B ($150B shipbuilding + $200B strategic)	Reuters 9/18
Nuclear	Up to 8 large reactors, ~$15B each	Reuters 9/18
Reactor types	6 AP1000 + 2 APR1400 (Korea’s proposal)	Korea Times 9/20
Westinghouse stake	Korea wants ~20% with board seats and voting rights; the US offers 5-10% non-voting	Korea Times 9/20, Yonhap 9/16
Stake negotiation status	Not agreed: Korea wants ~20% plus board seats and real voting rights; the US holds a 7%-range cap	Reuters 9/22, Yonhap 9/22
First project	Encinal gas combined-cycle plant in Texas, ~$22.3B	Reuters 9/18

Nothing is final. President Lee Jae Myung said at his September 18 press conference that “some provisions are hard to accept,” and the ministry’s parliamentary briefing was postponed once. The inclusion of the two APR1400 units and the stake size and voting rights are the last sticking points.

Correction (September 22, 2026, morning KST): at publication this piece described the Westinghouse stake terms as broadly agreed at a 7% + alpha level, following September 21 domestic reporting (Hankook Ilbo and others). On September 22, Reuters reported from sources that Korea and the US have not reached agreement on the Westinghouse stake investment: Korea is seeking around a 20% stake with board participation and substantive voting rights, while the US is holding a 7%-range cap. That conflicts with the 9/21 reports; this piece is corrected to reflect the latest Reuters 9/22 reporting, which says the matter is unresolved.

One more condition hangs over this. KEPCO and KHNP ended their intellectual-property dispute with Westinghouse in January 2025 with a global settlement. The reported terms require Korea to pay royalties on reactor exports and provide roughly one trillion won per unit in goods and services contracts. Korea could end up funding and building US reactors and buying a Westinghouse stake, while still paying separately when it builds the APR1400. Whether that burden was eased is a verification point for the September 22 briefing.

The repricing of an asset called Westinghouse

The direction of the negotiation is clear. Whatever Korea wins, Westinghouse sits at the center of US nuclear expansion. And the evidence for repricing Westinghouse is already public.

In November 2023, Brookfield and Cameco acquired Westinghouse at an enterprise value of $8.2 billion. Brookfield holds 51%, Cameco 49%.

On October 28, 2025, the US government signed a strategic partnership with the two owners. The details:

The US government arranges financing and facilitates permits for at least $80 billion of new Westinghouse reactors.
In return, the government receives a participation interest entitling it to 20% of any cash distributions Westinghouse makes above $17.5 billion to its owners.
That interest can convert into an equity stake of up to 20%, and if Westinghouse’s value exceeds $30 billion, the government can require an IPO by 2029.

The last clause is the anchor. For an asset acquired at an $8.2 billion enterprise value, the US government itself wrote $30 billion into the documents. The government is assuming a 3.7x repricing in three years. Japan separately announced participation of up to $100 billion in Westinghouse reactor construction through Mitsubishi Heavy Industries, Toshiba and IHI.

Korea’s investment negotiation adds up to eight reactors and roughly $120 billion on top. In its second-quarter release, Cameco disclosed a Westinghouse pipeline of up to 91 AP1000 opportunities. A pipeline is not contracted backlog, but the US government, Japan and Korea are lining up to confirm volumes in sequence.

Policy backdrop: US nuclear acceleration

The demand-side evidence sits in executive orders. On May 23, 2025, President Trump signed four nuclear-related orders.

Expand US nuclear capacity from about 100 GW in 2024 to 400 GW by 2050
10 large reactors under construction by 2030
An 18-month cap on NRC decisions for new reactor licenses

Per a September 16 Reuters report, a loan program is also moving as a follow-up to the $80 billion partnership. Construction risk remains, but the design has the government directly clearing the two bottlenecks: financing and permitting.

Cameco: 49% of Westinghouse plus uranium

Cameco equity-accounts Westinghouse. In Q2 2026, Cameco’s share of Westinghouse adjusted EBITDA was $163 million, with $284 million for the first half. That is down year over year, but the comparison carries a base effect: Q2 2025 included roughly $170 million of one-off contribution from Westinghouse’s participation in the two-reactor Dukovany project in the Czech Republic.

The core uranium business is seeing prices rise. Cameco raised its 2026 consolidated revenue guidance to C$3.32-3.57 billion and lifted its uranium realized-price outlook to C$91-96 per pound. The more reactors Westinghouse builds, the more long-term demand accrues to Cameco as a fuel supplier.

The stock has not been repriced yet. Cameco opened at $91.81 on September 18 with a market cap near $40 billion. That is about 32% below the 52-week high of $135.24, under both the 50-day ($94.92) and 200-day ($104.86) moving averages. A Q2 EPS miss and lower Westinghouse earnings landed together. If a closed deal starts converting the AP1000 pipeline into backlog, that is the material to close the gap.

Doosan Enerbility: equipment regardless of reactor type

Doosan Enerbility gets volume whether the projects go AP1000 or APR1400. It manufactured the reactor pressure vessels and steam generators for the AP1000s at Vogtle units 3 and 4, and for the APR1400 it can supply the full main equipment plus turbines and generators.

Using Kiwoom Securities’ September 8 per-unit order estimates, the arithmetic looks like this:

Scenario	Per unit	8 units
All AP1000	₩400-500B	~₩3.6T (midpoint)
6 AP1000 + 2 APR1400	Mixed	~₩8.2T (midpoint)

Doosan Enerbility’s 2025 consolidated revenue was ₩17.06 trillion with operating profit of ₩762.7 billion. Orders of ₩14.7 trillion were a record. The orders above would arrive spread over years after groundbreaking, but even the midpoint scenario adds volume close to half of annual consolidated revenue. With Westinghouse saying it will move early on long-lead equipment orders under US government support, AP1000 volume can start moving before the APR1400 question is settled.

The stock traded at ₩85,200 intraday on September 21, a market cap of ₩54.6 trillion. It has corrected about 39% from its 52-week high of ₩139,200. With negotiation uncertainty already priced in, a deal can work as a re-rating of expectations.

Interpretation: why hold the two together

From here on, this is interpretation, not fact.

The stake negotiation remains unresolved per the Reuters 9/22 report, and the stake Korea takes will likely stop near the 7%-range cap the US is holding, with no voting rights. If so, the return on Korea’s equity investment is limited, and the real beneficiary of a Westinghouse repricing is the existing owners. The only listed window into that ownership is Cameco with its 49%.

Doosan Enerbility is a different axis. It is exposed through volume, not equity. Even if the reactor-type negotiation ends badly for Korea, the AP1000 equipment floor remains, and if the APR1400 survives, per-unit orders jump six-fold. A winning scenario remains at either branch of the outcome.

Holding both gives exposure to the same macro event through two different paths: the Westinghouse repricing (Cameco) and reactor construction volume (Doosan). If negotiation details damage one side, the other remains.

What to verify

For the idea to become an investment, watch these in order.

The September 22 parliamentary briefing and the September 23 MOU: stake size, voting rights, APR1400 inclusion, any easing of the global settlement costs
The US government’s final investment decision and definitive agreements: the participation interest in the $80 billion partnership vests only with an FID
Westinghouse long-lead equipment orders: the first place Doosan’s AP1000 orders get confirmed
Westinghouse adjusted EBITDA in Cameco’s quarterly results, and AP1000 pipeline converting to backlog
Failure conditions: the deal collapses or the nuclear item shrinks, construction slips, Westinghouse earnings stay flat without a Dukovany-style one-off

If the negotiation falls apart, the premise of this piece does not hold. Even if it closes, an unfavorable stake and reactor-type mix reduces Doosan’s upside and makes the Cameco leg more important.

Conclusion

The nuclear item in the Korea-US investment negotiation is up to eight reactors, roughly $120 billion. The US government has already institutionalized a Westinghouse-centered expansion through the $80 billion partnership and executive orders, and it wrote a $30 billion IPO trigger into an asset acquired at $8.2 billion.

Cameco is the equity window into that repricing. Doosan Enerbility is the equipment window regardless of reactor type. Both sit 30-40% below their highs, waiting for the deal. The September 22 parliamentary briefing is the first checkpoint.

Sources

This piece is an investment idea based on public sources and is not a recommendation to buy or sell any security.