Ammonium Sulfate Price Trend and Forecast 2026-2027

Key Takeaways

• Global ammonium sulfate prices rose from USD 0.18/KG in Q1 2025 to a Q3 peak of USD 0.20/KG, then softened to USD 0.19/KG in Q4 and USD 0.18/KG in Q1 2026. The pattern tracked seasonal northern hemisphere fertiliser application windows and Chinese caprolactam coproduct supply.
• Africa was the most expensive region throughout 2025, ranging USD 0.28/KG to USD 0.31/KG, reflecting high import dependence, logistics bottlenecks through Durban and Mombasa ports, and strong demand from sulfur-deficient soils across the Sahel and East African tea and coffee belts.
• North East Asia (primarily China) remained the cheapest regional market at USD 0.11-0.14/KG, underpinned by large-volume coproduction from Chinese caprolactam plants and steel-industry flue gas desulfurisation byproduct streams. Chinese export supply continued to shape global trade flows.
• North America posted the sharpest Q3 2025 peak at USD 0.22/KG, reflecting strong US corn-belt sulfur demand, limited domestic sulfate capacity, and elevated shipping costs. Q4 2025 softened meaningfully to USD 0.18/KG as Mississippi River logistics eased.
• India's ammonium sulfate market stayed remarkably stable in a USD 0.15/KG band all year, supported by government fertiliser subsidy programmes and steady sugarcane and tea cultivation demand.
• The ammonium sulfate market forecast for 2026 points to continued moderate softness, supported by ample Chinese and Russian export supply, weaker sulfur-market fundamentals, and improving global fertiliser affordability per International Fertilizer Association tracking.

What Is Ammonium Sulfate and Why Does It Matter?

Ammonium sulfate ((NH₄)₂SO₄) is an inorganic compound that combines two agronomically essential nutrients: nitrogen (around 21% by weight) and sulfur (around 24%). It appears as a fine white to pale yellow crystalline solid, highly water-soluble, mildly acidifying to soils. It is one of the oldest commercial nitrogen fertilisers and remains a workhorse of the global fertiliser industry, particularly in agricultural systems where sulfur deficiency limits yield potential.

Three production routes dominate global supply. The first is byproduct from caprolactam production (the raw material for Nylon 6), where ammonium sulfate emerges from sulfuric acid neutralisation of process streams. Chinese caprolactam producers including Sinopec Baling, Sinopec Shijiazhuang, and Jiangsu Haili Group generate enormous coproduct volumes this way. The second route is byproduct from coke oven gas scrubbing at steel plants, where ammonia recovered from coking is reacted with sulfuric acid. Third is direct synthesis from anhydrous ammonia and sulfuric acid, which is less common but serves specific markets. Flue gas desulfurisation (FGD) at coal-fired power plants also generates some ammonium sulfate as a tertiary output.

Major global producers include BASF (Germany), Honeywell UOP licensees in multiple countries, Domo Chemicals (Belgium), Fibrant (Netherlands), LG Chem (South Korea), Sinopec (China), Ube Industries (Japan), AdvanSix (US, the largest North American producer), and several Russian producers. Capacity is distributed but concentrated around caprolactam production hubs.

Why ammonium sulfate prices matter beyond fertiliser markets: they flow directly into farmer economics for corn, wheat, rice, sugarcane, tea, and oilseed production. They shape caprolactam producer economics through coproduct value. They influence iron ore pelletizing and textile intermediate chemical costs. The International Fertilizer Association (IFA) tracks the category closely as an indicator of global nitrogen and sulfur nutrient markets.

Which Sectors Are Driving Ammonium Sulfate Demand?

Agriculture (direct fertiliser application): The dominant outlet by a large margin. Used as a nitrogen and sulfur source for corn, wheat, rice, sugarcane, tea, coffee, oilseeds, and many vegetable crops. Its mild soil-acidifying effect makes it particularly valuable for alkaline soils. USDA ERS data on US corn and wheat planted acreage and India's Ministry of Agriculture data on rabi and kharif sowing patterns provide the best demand indicators.

Blended NPK fertilisers and specialty formulations: Ammonium sulfate features in many compound fertiliser blends, especially those targeting sulfur-deficient soils in tea, oilseed, and legume regions. Custom blends for plantation crops in East Africa and Southeast Asia represent a growing value-added market.

Industrial water treatment: Used as a coagulant and pH adjustment agent in some water treatment applications, though volumes are small compared to agricultural use.

Food processing and fermentation: Serves as a nutrient in yeast propagation for baking and brewing, and as a nitrogen source in some industrial fermentation processes. Specialty food-grade material commands premium pricing per FDA and EFSA specifications.

Flame retardants and fire suppression: Used in some fire retardant formulations for wildfire suppression and flame-resistant treatments for wood and textiles. Small but consistent demand from forest service and industrial fire protection markets.

Global Ammonium Sulfate Price Trend in 2025

Global ammonium sulfate prices followed a classic northern-hemisphere seasonal pattern in 2025. Q1 2025 opened at USD 0.18/KG as pre-spring-planting procurement built through North American and European buying cycles. Q2 and Q3 saw the summer peak as application windows closed and buyers competed for late-season tonnage. Q4 and Q1 2026 showed the expected post-harvest softening as demand faded and inventory replenishment slowed.

Beyond the seasonal pattern, two structural features shaped 2025. First, Chinese caprolactam producers continued operating at high rates, generating ample coproduct ammonium sulfate that flowed into export markets, particularly Southeast Asia, Brazil, and Africa. China General Administration of Customs data showed steady export volumes through most of the year. Second, global sulfur markets stayed reasonably well-supplied, with elemental sulfur and sulfuric acid pricing not spiking in the way they did during 2021-2022. That kept production economics manageable across the merchant production routes.

The Q1 2026 softening to USD 0.18/KG suggests the market is entering 2026 with comfortable inventories. Spring 2026 application season pricing will depend heavily on Chinese export allocations, Russian volumes reaching global markets, and the pace of corn, soybean, and oilseed planting decisions across the US, Brazil, and Ukraine.

African Ammonium Sulfate Price Trends in 2025

Africa was the highest-priced regional market for ammonium sulfate throughout 2025, trading in a USD 0.28/KG to USD 0.31/KG band. The region's structural dependence on imports, long logistics chains from Asian and European producers, and strong demand from sulfur-responsive crops combined to keep prices elevated above global averages.

African demand is concentrated in several distinct regions. Kenyan, Tanzanian, and Rwandan tea estates use ammonium sulfate heavily as a top-dress nitrogen source. Ethiopian coffee cultivators, Malawian tobacco farmers, and South African sugarcane growers are also major consumers. Moroccan OCP Group is notable as both a fertiliser producer and a major African distributor, though ammonium sulfate is not OCP's primary focus (phosphates dominate their portfolio).

Logistics bottlenecks remained a persistent challenge. Durban and Mombasa ports faced periodic congestion through 2025, and inland logistics from coast to highland agricultural zones added meaningful cost. The Q3 2025 peak at USD 0.31/KG reflected pre-short-rains application procurement in East Africa combined with Mozambican and Zambian demand. The Q1 2026 decline to USD 0.27/KG suggests early 2026 supply improvement, likely helped by easing global freight rates and more predictable Chinese export flows.

European Ammonium Sulfate Price Trends in 2025

European ammonium sulfate prices moved within a relatively tight band through 2025, ranging USD 0.18/KG to USD 0.21/KG across five quarters. The region saw a distinct Q2 2025 firming as the application season peaked, then gradual softening through the second half before a Q1 2026 rebound.

European supply is shaped by BASF's Ludwigshafen facility, Domo Chemicals in Belgium, Fibrant in the Netherlands, and various caprolactam coproduct streams from German, Dutch, and Belgian chemical complexes. The EU's REACH regulatory framework and increasingly stringent nitrogen use rules under the Nitrates Directive influence application patterns. European farmers have shifted toward enhanced-efficiency nitrogen products in many regions, though ammonium sulfate retains a role for sulfur-responsive crops including oilseed rape, winter cereals, and specialty vegetable production.

The Q2 2025 jump of 16.75% was the sharpest quarter-on-quarter move in the European series, reflecting peak spring application demand meeting tight merchant supply. The subsequent Q3 and Q4 easing tracked the normal post-application inventory drawdown. Q1 2026's 1.93% firming suggests buyers are positioning early for 2026 spring season, anticipating continued sulfur demand and relatively stable feedstock costs.

Indian Ammonium Sulfate Price Trends in 2025

India had the most stable ammonium sulfate pricing of any tracked region, holding a USD 0.15/KG band all year with quarterly moves of under 3%. This stability reflects the distinctive Indian fertiliser market structure: government Nutrient Based Subsidy (NBS) scheme mechanics, domestic caprolactam-linked supply, and predictable seasonal consumption patterns.

India is both a producer and importer of ammonium sulfate. Major domestic producers include FACT (Fertilisers and Chemicals Travancore), GSFC (Gujarat State Fertilizers and Chemicals), and caprolactam-linked producers including GSFC's own caprolactam operations. Imports primarily flow from China, South Korea, Japan, and Belgium. The Department of Fertilizers oversees pricing and subsidy mechanisms, and NBS rates for phosphatic and potassic fertilisers (including ammonium sulfate) are notified annually.

Indian demand concentrates in sugarcane (Uttar Pradesh, Maharashtra), tea (Assam, West Bengal, Tamil Nadu), tobacco, and oilseed cultivation. Groundnut, mustard, and soybean farmers particularly value the sulfur content. The Q1 2026 uptick of 3.29% is typical pre-rabi-harvest firming, likely reflecting pre-summer procurement building ahead of kharif season preparations. Overall, Indian pricing is less volatile than most global markets because of the subsidy buffer and concentrated domestic consumption patterns.

North American Ammonium Sulfate Price Trends in 2025

North America saw the most dynamic price movement of any tracked region in 2025. Prices climbed from USD 0.18/KG in Q1 to a Q3 peak of USD 0.22/KG (+6.29%), then dropped sharply by 17.66% to USD 0.18/KG in Q4 before continuing down to USD 0.15/KG in Q1 2026. The pattern reflected acute summer demand tightness giving way to a rapid H2 normalisation.

AdvanSix is the largest North American ammonium sulfate producer, with integrated caprolactam-to-fertiliser operations in Hopewell, Virginia. Domestic supply is supplemented by imports from Europe and Asia. US demand is concentrated in the corn belt, Great Plains wheat regions, and specialty crop zones including California's Central Valley. Sulfur deficiency in US soils has become more widely recognised, supporting structural demand growth.

The Q2-Q3 2025 price surge reflected several converging factors. Strong corn-belt sulfur demand, limited domestic merchant supply, Mississippi River barge logistics bottlenecks, and firm natural gas pricing (affecting ammonia production economics) all pushed prices higher. The sharp Q4 2025 correction came as post-application demand eased and barge logistics normalised. Q1 2026's further 17.13% decline to USD 0.15/KG suggests the 2025 squeeze has fully unwound, with the market heading into 2026 spring season on more comfortable footing.

North East Asian Ammonium Sulfate Price Trends in 2025

North East Asia, dominated by Chinese supply, had the lowest absolute ammonium sulfate pricing of any tracked region in 2025, ranging USD 0.11/KG to USD 0.14/KG. The region's pricing is fundamentally driven by Chinese caprolactam production economics, with vast coproduct volumes that periodically pressure regional and global markets.

China's caprolactam industry is the world's largest, with capacity expansion continuing through 2024 and 2025. Major producers include Sinopec Baling, Sinopec Shijiazhuang, China Tianchen Engineering, Jiangsu Haili, Fujian Shenyuan, and Shandong Haili. Every tonne of caprolactam produces approximately 4 tonnes of ammonium sulfate byproduct, which means Chinese supply is driven as much by nylon chain economics as by fertiliser demand. Japan and South Korea contribute smaller but meaningful caprolactam-linked volumes.

The Q1 2026 jump of 11.74% to USD 0.15/KG is the largest quarterly increase in the region's series. It likely reflects Chinese domestic spring-planting demand building, some tightening of export availability as Chinese producers prioritise domestic markets, and firmer ammonia and sulfuric acid feedstock costs. Japanese and Korean prices typically track Chinese benchmarks with modest premiums reflecting higher-purity production and logistics costs to regional distribution points.

South American Ammonium Sulfate Price Trends in 2025

South American prices moved in a USD 0.16/KG band through 2025, showing modest quarterly variation that tracked Brazilian soybean and sugarcane demand cycles. The region is a net importer, with Brazil receiving the bulk of volume via ports including Santos, Paranagua, and Rio Grande.

Brazil dominates South American ammonium sulfate consumption. Mato Grosso, Goias, Paraná, and São Paulo soybean and corn producers are major buyers, and the substantial sugarcane industry concentrated in Sao Paulo state and Minas Gerais provides consistent demand. Argentina's Pampas grain producers are secondary consumers. Chile and Peru use ammonium sulfate in specialty fruit and mining chemical applications. Yara International, Mosaic, and Fertipar are among the major importers and distributors.

The Q2-Q3 2025 firming reflected the typical southern-hemisphere-reversed seasonality: northern-hemisphere summer peak demand pulled supply away from South American markets. Q4 2025 and Q1 2026 softening tracks the return of more plentiful supply as northern fertiliser application windows closed. Brazilian real currency movements against the dollar also affected landed costs, with USD-denominated imports becoming more or less expensive in local currency terms through the year.

What Factors Drove Ammonium Sulfate Costs in 2025?

• Seasonal application cycles: The most visible driver. Northern-hemisphere spring and summer planting windows pull demand between March and August each year, creating predictable Q2-Q3 price peaks. The 2025 pattern tracked this textbook cycle across all regions.
• Chinese caprolactam coproduct flows: The single most important structural supply factor globally. Chinese caprolactam production expansion through 2024-2025 generated ample ammonium sulfate byproduct, pressuring global pricing particularly in Southeast Asia, Africa, and Latin America.
• Ammonia and sulfuric acid feedstock costs: Direct synthesis route producers are sensitive to both. US natural gas prices (input to ammonia) and sulfur market fundamentals shape production economics. Both stayed reasonably contained through 2025 per US EIA data.
• Corn belt and soybean planting decisions: US Department of Agriculture National Agricultural Statistics Service planting intentions reports in March each year preview demand. 2025 corn acreage stayed strong, supporting nitrogen and sulfur fertiliser demand.
• Freight and logistics: Mississippi River barge rates, ocean freight container rates, and rail tariffs all affected landed pricing meaningfully. Q2-Q3 2025 saw elevated US inland freight, while Q4 brought relief.
• Government fertiliser subsidies: India's NBS scheme, African fertiliser subsidy programmes, and Chinese domestic subsidies all affect effective farmer procurement pricing. Subsidy rate changes can shift regional demand patterns materially.

Ammonium Sulfate Market Forecast for 2026

The ammonium sulfate market forecast for 2026 points to continued moderate softness from 2025 peaks, with classic seasonal patterns providing Q2-Q3 firmness and Q4 softening. Chinese caprolactam coproduct supply continues to anchor the global price floor, while seasonal northern hemisphere demand determines the ceiling.

On the upside, any surge in corn, wheat, or oilseed planting intentions would tighten spring 2026 demand. Russian supply disruption risks, Chinese environmental inspection-linked production cuts, or sulfur market spikes could lift prices. On the downside, continued Chinese caprolactam expansion, weak global sulfur pricing, and improving fertiliser affordability all argue for soft-to-stable pricing.

Expected Ammonium Sulfate Price Range (2026):

Base case sees global averages in a USD 0.15 to USD 0.22/KG band, with Africa continuing to carry the highest regional premium on import dependence and logistics cost, Europe in middle range on caprolactam coproduct availability, and North East Asia the cheapest on Chinese oversupply dynamics.

Key Analyst Insights for the Ammonium Sulfate Market

Ammonium sulfate is a byproduct-driven commodity, which makes its pricing dynamics quite different from primary-production nitrogen fertilisers like urea. A few things worth tracking closely into 2026:

• Chinese caprolactam operating rates and export allocations. Every caprolactam policy shift affects global ammonium sulfate pricing directly.
• USDA Prospective Plantings reports (late March each year) for US corn, wheat, soybean, and cotton acreage signals.
• India's Department of Fertilizers annual NBS rate notifications and fertiliser subsidy budget allocations.
• African Development Bank Africa Fertiliser Financing Mechanism progress, which affects fertiliser accessibility across the continent.
• Global sulfur and sulfuric acid market dynamics, which set feedstock cost floors for synthesis-route production.
• Mississippi River and Paraná-Paraguay barge logistics costs, which shape delivered pricing in key agricultural markets.

Key Takeaways for Buyers and Manufacturers

For Buyers

• Q1 2026's soft global pricing (USD 0.15/KG North America, USD 0.18/KG globally) offered attractive procurement for spring 2026 application programmes. Forward coverage at those levels protected against expected Q2-Q3 firming.
• Diversify origination. European buyers should maintain access to BASF, Fibrant, Domo, and Chinese import routes. North American buyers should combine AdvanSix domestic supply with import alternatives through Gulf Coast and West Coast ports.
• Time purchases against the seasonal pattern. Buying ammonium sulfate in Q4-Q1 for spring use typically saves 10-15% versus buying during Q2-Q3 peak. This is a reliable pattern across years.
• Specify sulfur content and particle size carefully. Granular ammonium sulfate commands a premium over crystalline for mechanical spreading applications, and reclaim from FGD operations can have different purity profiles than synthetic or caprolactam-coproduct material.

For Manufacturers

• Caprolactam producers should optimise coproduct value through direct-to-farmer supply chains where possible, bypassing commodity traders on margin where feasible.
• Enhanced-efficiency fertiliser formulations (stabilised, slow-release, polymer-coated) command premium pricing and respond to increasingly strict European Nitrates Directive and similar regulatory pressure.
• Sulfur-specific branding and agronomic education support value capture, particularly in markets where sulfur deficiency is widespread but underappreciated (sub-Saharan Africa tea and coffee, South American soybean, Southeast Asian oil palm).
• Logistics integration (near-port storage, inland rail connections, barge terminal partnerships) is increasingly important given how much of delivered pricing is freight-driven.