Uranium – Cameco Guidance Hanging by a Thread, Implications for Market Purchases
Cameco's flagship McArthur River mine and Key Lake mill are cut off. The Smoothstone River Bridge — their primary supply route — has collapsed. The firm has so far not changed guidance, but has noted possible risks. We think guidance is holding by the thread, and the spot market implications could be significant. We evaluate them here.
The bridge suffered extensive damage from recent flooding.
Bridge collapse shows extensive damage
Source: CBC
Traffic from the other flagship operation, Cigar Lake, remains unaffected for now. While McArthur River and Cigar Lake are only c50km apart by air, they use completely different road routes. But they are both in the same flood prone region. We would not overlook the risk of knock-on effects at Cigar Lake if poor weather conditions persisted. There are other bridges on that route too, and their condition is uncertain.
Path to Recovery
There are two avenues in our view that Cameco could take to resume traffic from McArthur / Key Lake, but the first looks the most realistic to us:
- Most Likely: Pre-engineered bridge can be deployed rapidly and used while a new bridge is built. These can usually be installed within about two weeks once water levels stabilise. Allowing for ramp-up time at the mine and mill, we expect full resolution around 25 June as a Base case, 45 days from now. This temporary bridge should then hold until a permanent fix is completed (which could take 1-2 years).
- Alternative route: Cameco to obtain an emergency overweight permit. Cameco’s vehicles are too heavy legally for the existing alternate route under normal rules. The issue in our view is that route too would involve the use of other bridges, and the flooding may put them at risk too – they need to be structurally sound to withstand heavy vehicle traffic on them.
Implications for Guidance and Spot Purchases
Assuming this fully resolves at our Base case, on 25 June, then McArthur / Key Lake would likely end the year with production at 13.4Mlbs – a tad below Cameco’s low range of guidance (14–16.5Mlbs) – assuming the central case was at the mid-guidance target pre bridge collapse. Assuming zero impact at Cigar Lake, which is also our Base case, then group production guidance (at 100%) could equivalently land at 31Mlbs (vs implicit guidance at 31.5–34.5Mlbs and 33Mlbs at mid-range).
As discussed in our note last week, the issue is that Cameco’s inventory coverage is already very low at 4.4 months of production as at Q1. Taking this level back to what Cameco used to see as a reasonable inventory coverage of around six months of production would suggest a current inventory deficit of c2.7Mlbs.
Assuming Cameco could borrow 2Mlbs of incremental uranium now vs Q1, and that it must pay off the 0.75Mlbs uranium loan it took in Q1 maturing this year, then our 45-day Base case resolution would require 3.5Mlbs of spot market purchases this year vs guidance at 3.0Mlbs. So, guidance on our Base case is on a very thin edge.
We would be surprised to see Cameco able to borrow more than 2Mlbs incremental vs Q1. We would argue that a general tightening credit market could finally make product loans less accessible and flexible than they have previously been. A more limited access to product loans would mean filling the supply gap through more spot market buying.
Our Base Case Estimate of Cameco 2026E Spot Market Purchases (Assuming 45-day McArthur disruption + 2 Mlbs incremental borrowing), Mlbs
Source: Asymmetric Research estimates, Cameco
As an idea on sensitivity, if instead, 1) the McArthur disruption takes say 3 months to resolve, and 2) assuming McArthur pre-bridge collapse was to achieve the lower end of the guidance production range (14Mlbs), and 3) still have access to 2Mlbs of incremental borrow; then Cameco would need to resort to spot market buying for c6.5Mlbs this year. A big number.
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This article was originally published on Asymmetric Research. Continue reading the full analysis — including our sensitivity tables, spot market purchase estimates and highest-conviction uranium positions — at asymmetricresearch.substack.com