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Potassium Sulfate Pricing, Demand and Supply Overview
Potassium Sulfate prices in the United States, the highest-cost reporting region, rose 2.0% in Q2 2026 to USD 770.00/MT from USD 755.00/MT in Q1, as elevated potassium chloride and sulfuric acid feedstock costs continued supporting this market. Globally, the average rose from USD 647.00/MT in Q1 to USD 664.40/MT in Q2, a 2.7% gain. For H2 2026, a global average of USD 630.00-710.00/MT is expected, with strong demand for chloride-free fertilizers among specialty and high-value crop growers likely to keep this market on its established upward path.
Potassium Sulfate, also known as sulfate of potash or SOP, is a chloride-free potassium and sulfur fertilizer produced primarily through the Mannheim process, reacting potassium chloride with sulfuric acid, or through double-decomposition routes using natural mineral deposits. Its chloride-free composition makes it the preferred potassium source for chloride-sensitive crops such as fruits, vegetables, tobacco, and specialty horticultural products, particularly in saline soil conditions where conventional muriate of potash is less suitable. Potassium chloride and sulfuric acid feedstock costs, demand from specialty and high-value crop growers, energy costs at production facilities, and regional supply conditions are what drive prices in this market.
Potassium Sulfate Price Forecast for 2026
The outlook for Potassium Sulfate through H2 2026 stays firm, tracking the elevated potassium chloride and sulfur feedstock cost environment affecting the broader potash and sulfuric acid complex. Rising demand for chloride-free fertilizers among specialty crop growers, expanding greenhouse and horticultural production, and growing adoption in regions with saline soil conditions should keep this market on a consistent upward path.
The main upside risk is a further tightening of potassium chloride or sulfur feedstock availability, which would push production costs higher across every region tracked in this report. The main downside risk is a slowdown in specialty crop and horticultural demand combined with easing feedstock costs, which would relieve some of the current price pressure.
| Region | 2026 Price Range (USD/MT) | Outlook |
| Global Average | 630.00 - 710.00 | Feedstock costs and specialty crop demand support gains |
| United States | 745.00 - 820.00 | Elevated feedstock costs sustain the highest regional price |
| India | 690.00 - 760.00 | Growing chloride-sensitive crop demand drives continued firming |
| Germany | 565.00 - 620.00 | Steady specialty fertilizer demand supports gradual gains |
| China | 555.00 - 615.00 | Feedstock cost pass-through keeps this market on a firm path |
For the Quarter Ending June 2026
Potassium Sulfate Prices Q2 2026:
- United States: USD 770.00/MT
- India: USD 710.00/MT
- Germany: USD 580.00/MT
- China: USD 580.00/MT
Potassium Sulfate Prices in the United States
US Potassium Sulfate prices averaged USD 770.00/MT in Q2 2026, the highest of any region tracked here, up 2.0% from USD 755.00/MT in Q1, as elevated feedstock costs continued supporting this market.
Why did the price of Potassium Sulfate change in Q2 2026 in the United States?
Henry Hub natural gas prices remained elevated, adding to the energy bill for domestic SOP manufacturers, while resilient farmer purchasing activity, supported by steady retail sales growth, kept demand firm enough for producers to hold pricing.
Potassium Sulfate Prices in India
Indian prices averaged USD 710.00/MT in Q2 2026, up 4.4% from USD 680.00/MT in Q1, as growing demand for chloride-free fertilizers among specialty crop growers kept this market on a firm upward path.
Why did the price of Potassium Sulfate change in Q2 2026 in India?
Strong and growing appetite for chloride-free fertilizers among horticultural and high-value crop growers, particularly in regions with saline soil conditions, continued driving Indian import demand higher through the quarter.
Potassium Sulfate Prices in Germany
German prices averaged USD 580.00/MT in Q2 2026, up 1.8% from USD 570.00/MT in Q1, as steady specialty fertilizer demand supported gradual gains.
Why did the price of Potassium Sulfate change in Q2 2026 in Germany?
Steady demand from specialty crop and horticultural applications across the German and broader European market kept this market moving in step with the broader global firming trend.
Potassium Sulfate Prices in China
Chinese prices, tied with Germany as the most affordable region tracked here, averaged USD 580.00/MT in Q2 2026, up 2.7% from USD 565.00/MT in Q1.
Why did the price of Potassium Sulfate change in Q2 2026 in China?
MOP feedstock costs and tighter sulfuric acid supply continued straining production margins at potassium sulfate plants across China's main manufacturing hubs, feeding through to firmer finished product pricing.
For the Quarter Ending March 2026
Potassium Sulfate Prices Q1 2026:
- United States: USD 755.00/MT
- India: USD 680.00/MT
- Germany: USD 570.00/MT
- China: USD 565.00/MT
Potassium Sulfate Prices in the United States
US prices rose 3.4% in Q1 2026 to USD 755.00/MT from USD 730.00/MT in Q4 2025, as feedstock cost pressure continued building.
Why did the price of Potassium Sulfate change in Q1 2026 in the United States?
MOP and phosphate input costs trended upward, directly feeding into higher production costs for sulfate-of-potash whether made via the Mannheim process or other conversion routes, while Henry Hub natural gas prices firmed into year-end, adding to the energy bill for domestic manufacturers.
Potassium Sulfate Prices in India
Indian prices rose 6.2% in Q1 2026 to USD 680.00/MT from USD 640.00/MT in Q4 2025, tracking strong specialty crop demand.
Why did the price of Potassium Sulfate change in Q1 2026 in India?
Farmer appetite for chloride-free fertilizers stayed solid, and by the end of the prior quarter the Asian spot market was already trading at an elevated level reflecting the combination of tight supply and elevated feedstock benchmarks in the region.
Potassium Sulfate Prices in Germany
German prices rose 2.7% in Q1 2026 to USD 570.00/MT from USD 555.00/MT in Q4 2025, a modest continuation of the steady upward trend.
Why did the price of Potassium Sulfate change in Q1 2026 in Germany?
Steady specialty fertilizer demand across the European market continued supporting gradual price gains, consistent with the broader global feedstock-driven trend affecting this market.
Potassium Sulfate Prices in China
Chinese prices rose 4.6% in Q1 2026 to USD 565.00/MT from USD 540.00/MT in Q4 2025, as MOP and sulfur feedstock costs climbed sharply.
Why did the price of Potassium Sulfate change in Q1 2026 in China?
MOP feedstock costs climbed sharply, weighing on production economics for Chinese SOP makers operating both Mannheim and double-sulfate conversion units, while high sulfur prices combined with tighter sulfuric acid supply further strained production margins across the country's main manufacturing hubs.
Quarterly Potassium Sulfate Price Trends
Global Potassium Sulfate prices dipped modestly in Q2 2025 before climbing steadily through the following four quarters, tracking rising potassium chloride and sulfur feedstock costs alongside firm and growing demand for chloride-free fertilizers among specialty and high-value crop growers across every region covered in this report.
| Quarter | Price (USD/MT) | QoQ Change | Direction |
| Q2 2026 | 664.40 | +2.7% | ↑ Rising |
| Q1 2026 | 647.00 | +4.2% | ↑ Rising |
| Q4 2025 | 620.80 | +4.2% | ↑ Rising |
| Q3 2025 | 595.60 | +6.1% | ↑ Rising |
| Q2 2025 | 561.60 | - | — Stable |
| Q3 2026 | In Progress | - | — In Progress |
What was Potassium Sulfate Price in 2025?
Potassium Sulfate firmed steadily across every market covered in this report through 2025, tracking rising potassium chloride and sulfur feedstock costs alongside growing demand for chloride-free fertilizers, with India posting the strongest annual gain given rapidly expanding specialty crop cultivation.
Potassium Sulfate Prices in the United States in 2025
US prices firmed from about USD 680.00/MT in Q1 2025 to USD 730.00/MT by Q4, a gain of roughly 7.4%, tracking elevated feedstock and energy costs through the year.
Potassium Sulfate Prices in India in 2025
Indian prices firmed from about USD 590.00/MT in Q1 2025 to USD 640.00/MT by Q4, up roughly 8.5%, the strongest annual increase of the four regions, supported by growing chloride-sensitive crop cultivation.
Potassium Sulfate Prices in Germany in 2025
German prices firmed from about USD 520.00/MT in Q1 2025 to USD 555.00/MT by Q4, a gain of roughly 6.7%, the smallest annual increase among the four regions.
Potassium Sulfate Prices in China in 2025
Chinese prices firmed from about USD 500.00/MT in Q1 2025 to USD 540.00/MT by Q4, up roughly 8.0%, tracking rising MOP and sulfur feedstock costs through the year.
How We Can Help
Expert Market Research: Your Source for Real-Time Potassium Sulfate Price Intelligence
Expert Market Research tracks Potassium Sulfate prices continuously across every major producing and consuming region, combining potassium chloride and sulfuric acid feedstock cost data, specialty and high-value crop demand signals, and regional supply trends into a single, regularly updated view of the market. Our team can help your procurement function benchmark current offers, plan purchases around the feedstock-driven trends covered in this report, and build a defensible view of where this premium chloride-free fertilizer is headed next. Reach out to our team for a tailored briefing or a deeper look at any of the regional markets covered here.
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Key Questions Answered in the Report
Its chloride-free composition makes it the preferred potassium source for chloride-sensitive crops such as fruits, vegetables, tobacco, and specialty horticultural products, particularly in saline soil conditions.
The Q2 2026 global average was USD 664.40/MT, ranging from USD 580.00/MT in Germany and China to USD 770.00/MT in the United States.
The global average rose from USD 620.80/MT in Q4 2025 to USD 647.00/MT in Q1 2026 and then to USD 664.40/MT in Q2, tracking rising feedstock costs and firm specialty crop demand.
Elevated potassium chloride and sulfuric acid feedstock costs, tied to the broader potash and sulfur cost environment, have continued feeding through to production economics, while strong and growing demand for chloride-free fertilizers among specialty crop growers has kept consumption firm.
The global average is expected in the USD 630.00-710.00/MT range, supported by feedstock costs and specialty crop demand.
Germany and China hold the lowest costs among the regions tracked here, while the United States carries the highest cost given elevated feedstock and energy costs.
This report is updated monthly. For real-time pricing intelligence, connect with the Expert Market Research team.
Potassium chloride and sulfuric acid feedstock costs, demand from specialty and high-value crop growers, energy costs at production facilities, and regional supply conditions.
China maintains substantial Mannheim process production capacity, with the United States, Germany, and other producers also supplying significant volumes to the global specialty fertilizer market.
Buyers can monitor potassium chloride and sulfur feedstock cost trends given their outsized influence on this market, time forward purchases around the quarterly breakdowns in this report, and benchmark supplier quotes against the tracked price ranges.
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