UK · £/tonne · AI-forecasted
Muriate of Potash Price, UK
UK muriate of potash (MOP) price, AI-forecasted, £/tonne. Indicative, forecasted and not a transactable quote.
What the nutrient costs
The headline price is per tonne of product. This is the price of the nutrient inside it.
Price trend
How the daily forecast has moved over the last 12 months. The shaded band is the confidence range; the marker is today.
Month-on-month change
How much the daily forecast moved from one month to the next. Green is a rise, tan a fall.
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Monthly price history
The daily forecast's level at the end of each of the last twelve months.
| Month | Price | Change |
|---|---|---|
| August 2026 | £371 | −£7 |
| July 2026 | £378 | −£2 |
| June 2026 | £380 | +£2 |
| May 2026 | £378 | −£13 |
| April 2026 | £391 | +£3 |
| March 2026 | £388 | +£21 |
| February 2026 | £367 | +£4 |
| January 2026 | £363 | +£4 |
| December 2025 | £359 | −£2 |
| November 2025 | £361 | −£1 |
| October 2025 | £362 | +£1 |
| September 2025 | £361 | n/a |
The current modelled uncertainty band is tight, about ±2%.
Over its last 10 market checks, our Muriate of Potash estimate has stayed within £2/t 9 times. Muriate of Potash is £120/t below the average of the other tracked grades. Over the past quarter, Muriate of Potash has fallen £9/t (2.5%).
About this grade
Muriate of potash, also called potassium chloride, is the main source of potassium for UK farms and is 60% potash. Potassium governs water regulation and grain fill rather than growth itself, and like phosphate it stays put in the soil, so the timing of application is a good deal more forgiving than nitrogen.
Common questions
- What does the cost per kilogram figure mean here?
- It is the price of a kilogram of potash, written K2O, which is the form potassium content is conventionally expressed in. Muriate of potash is 60% K2O, so a tonne carries 600 kg of it. Divide the price per tonne by 600 to get what a kilogram of potash costs.
- What moves the potash price?
- Potash is mined, not manufactured, so it is not tied to gas prices the way nitrogen is. Its price is driven by mine supply, the annual contracts struck with the largest importing countries, and freight. It tends to move in longer, slower cycles than nitrogen.
- Does the chloride matter?
- For most combinable crops and grassland it does not. Muriate of potash is avoided on a small number of chloride sensitive crops, where sulphate of potash is used instead at a considerable premium. If you are growing conventional UK arable crops, muriate is the normal choice.
- Where does the daily price come from?
- It is produced every day by our forecasting model, and the model is re-validated continuously against weekly UK market prints: a grade publishes a modelled figure only while it beats a naive hold-the-last-price baseline on months it has never seen. The shaded band around the line on the chart is the confidence range of the estimate.
- Methodology and the signals behind each grade →
Buying guides
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Today's price and recent trend for the other tracked grades.
AI-forecasted market estimates, getting sharper as farmers add what they paid. Indicative, not a transactable quote.