Uranium at US$90 Spot, but Producers Are Contracting at US$120

The world’s cheapest place to mine uranium just got a lot more expensive. Kazatomprom, the Kazakh state producer that has long anchored the bottom of the global cost curve, reported a 37% year-on-year jump in its cash cost of production for the first half of 2026.

Compounding the pressure, a discovery of what has been described as ancient rhinoceros remains has halted construction of the very plant meant to fix its biggest input cost problem.

Spot prices sit around US$90 per pound in mid-September 2026, near multi-year highs. Yet the cost of pulling the metal out of the ground is climbing so fast that the old rules for pricing producer economics no longer hold.

Here is the framework for reading producer economics in this environment, and why term contract floors are likely to stay elevated no matter how the spot price swings in the months ahead.

The 37 percent cost spike redefining the industry floor

Kazatomprom released its first-half 2026 results on 21 August 2026, and the top line looked reassuring. Consolidated revenue rose 9% year-on-year to KZT 717.8 billion.

Look one line down and the story inverts. Net profit fell 9% to KZT 240.4 billion, and the reason sits entirely in the cost base.

The attributable C1 cash cost, the direct expense of extracting a pound of uranium, hit US$24.48/lb in the first half of the year. That is a 37% increase from just under US$18/lb a year earlier.

All-in sustaining cash cost (AISC), which adds the capital needed to keep operations running, reached US$38.45/lb, up 25%. Management then raised full-year guidance, telling the market to expect C1 of US$25.50-27.00/lb and AISC of US$39.00-40.50/lb.

Kazatomprom’s 1H 2026 financial results, released directly by the company on 21 August, confirm the C1 cash cost reaching US$24.48/lb and the AISC rising to US$38.45/lb, figures that underpin the full-year guidance revision management issued alongside the report.

According to Odelia Energy’s analysis of the results, three structural pillars drove the inflation:

• A mineral extraction tax hike, with the rate lifted from 9% to 12.4%
• Surging sulfuric acid prices, now representing over 15% of total production costs
• Appreciation of the Kazakh tenge against the US dollar, which lifts input costs when translated back into dollars

None of these are one-off shocks. A tax rate does not revert, currency strength is structural, and reagent inflation, as the next section shows, is sticky.

None of these are one-off shocks. A tax rate does not revert, currency strength is structural, and reagent inflation compounds the uranium supply challenges that have made the market structurally unable to respond quickly even when prices rise sharply.

The read for you is uncomfortable but clarifying. When the lowest-cost anchor in the industry sees its cost floor rise by more than a third, every valuation model built on prior-cycle production costs is now out of date. What counted as a “cheap” producer at US$18/lb no longer exists at that level, and baseline profitability for the entire sector has rebased permanently higher.

Why sulfuric acid dictates in-situ leach economics

To understand why these costs are so difficult to reverse, you have to understand how Kazakhstan actually mines uranium. It does not dig.

Most Kazakh production uses in-situ leach (ISL) mining, a method where an acidic solution is pumped directly underground through wells. The solution dissolves the uranium from the ore in place, and the resulting liquid is pumped back to the surface for processing.

The chemical doing that dissolving is sulfuric acid. Without a steady, affordable supply of it, ISL production simply does not function, which makes acid the single most important consumable in the entire operation.

That dependency is precisely where Kazatomprom got squeezed. Its weighted average sulfuric acid purchase price reached roughly 97,300 tenge per metric ton in the first half of 2026, up nearly 40% year-on-year and about three times what it paid in 2022.

With acid now more than 15% of total production costs, the company’s exposure to a single reagent market has become a defining feature of its economics. That is why it committed to building its own supply.

The TQZ plant bottleneck

The Taiqonyr Qyshqyl Zauyty (TQZ) plant was meant to solve the problem. Designed for 800,000 tonnes per year of capacity, the facility would give Kazatomprom captive acid supply and insulate it from the external market that has punished its margins.

Then the earthworks turned up bones. During construction, contractors uncovered potential paleontological specimens, described as the remains of an ancient rhinoceros species, triggering a mandatory halt under Kazakhstan’s heritage protection law.

Specialised excavations must now be completed before work resumes, pushing commissioning back by an estimated 6-12 months, from the original Q1 2027 target to somewhere between Q3 2027 and Q1 2028.

The lesson here is not about rhinoceros fossils. It is that commodity supply chains remain hostage to localised physical disruptions that no financial model anticipates. You cannot pencil in a quick fix to Kazatomprom’s cost problem, because the fix itself is now stuck in the ground for another year or more.

The $120 greenfield threshold and the new baseline for supply

If sustaining existing mines is getting expensive, building new ones is a different conversation entirely. And that is where the pricing gap becomes impossible to ignore.

Kazatomprom has indicated it needs a uranium price of roughly US$120 per pound to justify greenfield development, meaning entirely new mines built from scratch. That figure was cited by analyst Mart Walbert of Contrarian Codex, attributed to conversations with Kazatomprom representatives at the World Nuclear Association symposium.

Greenfield uranium development economics differ from sustaining existing operations in nearly every cost category, with land access, environmental permitting, workforce mobilisation, and reagent infrastructure all requiring capital outlay years before any production revenue arrives.

Now line that up against the market. Spot sits near US$90 per pound in mid-September 2026, and the long-term contract benchmark, the price utilities actually pay for future delivery, sits at US$96-97 per pound.

At roughly US$120 per pound, the price required to move the needle on greenfield supply is more than 20% above where long-term contracts are being written today.

That gap matters more than the headline spot number. Sustaining an existing ISL operation is one economic question; incentivising a brand-new mine in an inflationary cost environment is a far harder one, and the market is not yet paying enough to answer it.

There is a difference worth holding onto here. A term price of US$96 keeps current producers in business. It does not bring the next tranche of supply online, and demand is not waiting.

Walbert assigns a probability of 85% or greater to uranium reaching US$150 per pound within the current bull cycle. His framework rests on accelerating demand, a supply base that needs sustained high prices to expand, and a price path that climbs in steps rather than spiking.

For you, the signal in that US$96-versus-US$120 gap is a structural supply deficit baked into the market until prices rise further. New pounds do not appear at today’s incentive level, which is the mathematical backbone of the long-term bullish case rather than a sentiment-driven hope.

How producers are already enforcing triple-digit realities

While the spot price grabs headlines, the real repricing is happening quietly, inside long-term contracts that never appear on a daily ticker. Western producers are already writing the cost curve into their deals.

Cameco, the largest listed producer, is the clearest example. Its market-related contracts now embed midpoints near US$120 per pound and escalated ceilings around US$160 per pound, structures explicitly designed to make utilities absorb rising costs rather than the miner.

Cameco President Grant Isaac put a number on how far this has already gone. Speaking via the Triangle Investor podcast in coverage published 6 June 2026, Isaac noted that 70% of the company’s 2025 contracted volumes were already priced at three-digit levels.

Modern long-term uranium contracts are built from several moving parts, and understanding them shows why realised prices are decoupling from spot:

1. Floors: a minimum price that protects the producer if the market falls, now sitting in the high US$70s for Cameco
2. Ceilings: a maximum price capping what the utility pays, escalated to around US$160
3. Midpoints: the reference point around which the deal is structured, near US$120
4. Escalators: built-in inflation adjustments, with Cameco embedding roughly 2% US inflation escalation into its structures

The reason producers can enforce these terms is the utilities’ weak position. In 2025, utilities contracted somewhere between 82 and 116 million pounds against a replacement rate of roughly 150 million pounds, marking the 14th consecutive year of contracting below what reactor demand requires.

The uranium supply gap between what utilities are contracting and what reactor demand requires has widened across 14 consecutive years of under-contracting, giving producers the negotiating leverage to enforce contract floors that were unthinkable in the previous cycle.

The squeeze extends beyond the mine gate too. Between 2024 and 2025, conversion term prices rose about 27% and enrichment term prices climbed more than 10%, meaning utilities face inflation across the entire fuel cycle, not just at the point of extraction.

What this tells you is that producers are refusing to subsidise utility risk this cycle. When actual contracted prices are being locked in near US$120 while spot trades at US$90, producer equities carry far stronger downside protection than a glance at the spot chart would suggest.

Valuing uranium exposure in a high-floor market

The chain running through this market is now tightly linked. Kazatomprom’s cost floor has risen more than a third, sulfuric acid inflation is structural rather than temporary, greenfield supply needs prices well above today’s benchmarks, and western producers are already locking in triple-digit contract terms.

A US$150 per pound price spike may well arrive, and Walbert puts strong odds on it. But the more durable takeaway is the permanently elevated floor now sitting beneath the entire market.

For your own positioning, the decision-point is straightforward. Stress-test any uranium equity against a scenario where input costs stay high, and favour companies with secure reagent supply and contract structures carrying robust floors and ceilings.

Spot volatility will keep generating headlines. The contract book is where the real value is being written.

For investors wanting to apply these cost-floor and contract-structure insights to specific equity positions, our full explainer on uranium equity investment frameworks covers producer screening criteria, contract book analysis, and portfolio sizing considerations for the current cycle.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions.

Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors, and forward-looking price estimates are speculative and subject to change based on market developments.