Cameco Corporation cites proposed US$120B US‑Korea reactor framework
South Korea's nonbinding financing framework could support up to eight U.S. reactors; Cameco says final agreements and sites remain pending.
Ines Halvorsen
Sept. 30 brought a proposed US$120 billion South Korean investment framework for U.S. reactor construction, Cameco Corporation TSECCO NYSECCJ said. The terms could bring Westinghouse about US$2 billion in value for each of up to two planned APR1400 reactors through licensing, engineering, procurement and fuel services, Cameco said. Cameco said the U.S. and South Korean governments announced the nonbinding framework under an earlier memorandum of understanding.
Cameco shares gained 0.07 per cent to C$123.38 at the Sept. 30 Toronto close, according to the TSECCO quote as of 4 p.m. EDT. Cameco's post about the framework followed at 7:59 p.m. EDT, so that closing price predates the post.
The framework contemplates up to eight reactors in the United States: six Westinghouse AP1000 units and up to two Korean APR1400 units built on Westinghouse technology. Cameco said deployment would begin with two AP1000 reactors on federal sites designated by the U.S. government, if the parties conclude the necessary agreements. Its release gives no site, construction date or generation capacity for those first units.
An Oct. 28, 2025 partnership announcement set out at least US$80 billion of planned U.S. construction using Westinghouse technology. Cameco describes the new Korean framework as a potential funding and execution route under that existing partnership. The company presented the Korean framework as a possible way to finance that earlier plan, leaving the US$120 billion subject to final agreements.
“Our priority continues to be on the Department of Energy’s American Nuclear Supply Chain Loans conditional commitment, under which AP1000 reactor construction timelines are expected to accelerate by as much as three years, along with the strengthening of the nuclear supply chain.” Cameco chief executive Tim Gitzel said in the Sept. 30 release.
Sites and Financing Need Final Agreements
Cameco lists definitive contracts, site planning, regulatory approvals and financing arrangements among the conditions still to be met. Its Sept. 30 release gives no permit decision date or price per megawatt-hour for the contemplated reactors. The government framework also leaves a possible Korean equity investment in Westinghouse subject to due diligence and corporate and regulatory approvals.
The contemplated APR1400 units would require a one-time waiver under Westinghouse's 2025 intellectual-property settlement with Korean companies. Cameco expects the US$2 billion of value per APR1400 to combine licensing, engineering and procurement services, subcontracting and long-term fuel fabrication. Cameco said it does not expect potential Korean equity participation under the framework to affect its ownership interest in Westinghouse.
The separate June 23 DOE conditional loan package of up to US$17.5 billion is intended to finance long-lead equipment for up to ten AP1000 reactors. Cameco says Westinghouse and its partners must meet technical, legal, environmental and financial conditions before loan documents can be signed and funds advanced.
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Brookfield Asset Management Ltd. TSEBAM NYSEBAM said in its June 23 release that it and institutional partners jointly owned 51 per cent of Westinghouse, alongside Cameco's 49 per cent. For the separate DOE program, Brookfield's stated target is to have ten AP1000 reactors under construction by 2030.
