Diammonium Phosphate (DAP) Price Trend and Forecast 2026-2027

Key Takeaways

• Global Diammonium Phosphate prices surged strongly through the first three quarters of 2025, rising 9.2 percent in Q2 and 13.0 percent in Q3 to reach a peak of USD 0.79/KG, before correcting 6.9 percent in Q4 and a further 7.6 percent in Q1 2026 to USD 0.68/KG. The World Bank Commodity Markets Outlook (October 2025) confirmed that Diammonium Phosphate prices were expected to rise approximately 26 percent across the full year 2025, driven by Chinese export restrictions, rising input costs, and historically low inventories in key importing regions.
• Europe was the most expensive Diammonium Phosphate region throughout the five-quarter period, ranging from USD 0.74/KG in Q1 2025 to a peak of USD 0.92/KG in Q3 2025. European prices remained supported by EU tariffs on Russian fertilizer imports phased in from July 2025, constraining lower-cost supply sources and sustaining premiums. Europe maintained prices above USD 0.86/KG even in Q1 2026, the most resilient market of all seven regions.
• India recorded the steepest Q3 2025 gain of any region (+17.7 percent to USD 0.85/KG), consistent with the aggressive seasonal procurement ahead of the kharif planting season. India imported approximately 5.95 million tonnes of Diammonium Phosphate in the April to December 2025 period, up approximately 44 percent year-on-year as the country rebuilt inventories from historically low levels. The subsequent Q4 2025 and Q1 2026 declines of 13.3 and 16.9 percent reflected post-season demand normalization.
• North East Asia was the sole region to post rising prices across every quarter from Q1 through Q4 2025, before accelerating sharply in Q1 2026 (+17.8 percent to USD 0.70/KG). This anomalous trajectory reflects the rising domestic production cost environment within China, driven by liquid sulfur prices that nearly tripled since end-2024 and ammonia prices approximately 15 percent higher (World Bank Commodity Markets Outlook, October 2025), alongside China's continued phosphate export restrictions.
• The World Bank Commodity Markets Outlook projects Diammonium Phosphate prices to fall approximately 8 percent in 2026 as new production capacity comes online and supply pressures ease, with the forecast assuming China's phosphate exports gradually normalize and Russia continues redirecting exports from Europe to Brazil and India. However, geopolitical risks including Middle East supply disruptions represent material upside risks to this forecast.

What Is Diammonium Phosphate and Why Do Its Prices Matter?

Diammonium Phosphate (18-46-0) is the world's most widely traded phosphate fertilizer and a cornerstone of modern global agriculture. The compound, with a molecular formula of (NH₄)₂HPO₄, delivers both nitrogen at approximately 18 percent and phosphorus pentoxide (P₂O₅) at approximately 46 percent in a single granular product. This dual-nutrient profile, combined with water solubility, ease of mechanical application, and agronomic effectiveness across a wide range of soil types and crops, has made Diammonium Phosphate the phosphate fertilizer of choice for intensive cereal, oilseed, and pulse farming from the Indian subcontinent to the U.S. Corn Belt, from North African wheat fields to Brazilian soybean farms.

Diammonium Phosphate's production requires two primary feedstocks: phosphoric acid (itself derived from phosphate rock) and ammonia (derived from natural gas via the Haber-Bosch process). This dual feedstock dependency means Diammonium Phosphate production economics are simultaneously exposed to phosphate rock mining costs, sulfuric acid processing costs for phosphoric acid production, and natural gas and energy costs for ammonia synthesis. When any of these inputs tighten, Diammonium Phosphate costs can move significantly within a single quarter, as demonstrated by the 2025 market.

Diammonium Phosphate prices matter profoundly for global food security and agricultural economics. Phosphorus is an essential macronutrient with no agronomic substitute: crops cannot develop robust root systems, efficient energy transfer, or adequate grain formation without adequate phosphorus nutrition. When Diammonium Phosphate prices surge, as they did in 2021 to 2022 and again in 2025, smallholder farmers in developing countries face the sharpest affordability challenge, often reducing application rates below optimal levels and risking lower yields. The World Bank noted in its October 2025 Commodity Markets Outlook that Diammonium Phosphate's affordability index remained above its early 2022 peak, the worst fertilizer affordability episode in decades, underscoring the continuing pressure on farm economics globally.

Which Sectors Are Driving Diammonium Phosphate Demand?

Cereal crop production: Wheat, maize, rice, and barley are the primary agronomic consumers of Diammonium Phosphate globally. These staple crops are grown across vast planted areas in India, China, the United States, Russia, the EU, and Brazil, with phosphorus application essential for early root development and grain filling. Strong staple crop planting programs across Asia and South America in 2025 supported robust baseline Diammonium Phosphate demand throughout the year.

Oilseed cultivation (soybeans, rapeseed, sunflower): Oilseed crops are significant phosphorus consumers, particularly in Brazil and Argentina where soybean expansion continues on newly opened agricultural land. Brazil's anticipated record soybean harvests and rising fertilizer needs for corn cultivation intensified phosphate requirements through 2025, making Brazil one of the fastest-growing Diammonium Phosphate demand centres globally.

Government subsidy programmes and strategic stockpiling: India's government subsidy framework, which caps retail Diammonium Phosphate prices at INR 1,350 per 50 kg bag, and agricultural support policies across African and Southeast Asian nations drive government-directed procurement at scale. India's strategic decision to rebuild inventory from historically low levels drove the country's import surge of approximately 44 percent year-on-year in April to December 2025.

Pulse and horticulture crops: Legumes, vegetables, and fruit crops in South Asia, the Middle East, and Africa require adequate phosphorus for root nodulation (in legumes), fruit set, and quality development. These crops tend to apply higher phosphorus rates per hectare than cereals and support premium-grade Diammonium Phosphate demand in specialty agricultural markets.

Industrial and animal nutrition uses: A smaller but economically important demand stream for Diammonium Phosphate comes from animal feed dicalcium phosphate production, water treatment chemicals, and fire retardant manufacturing. These industrial applications provide a relatively stable baseline demand that does not track the seasonal volatility of agricultural procurement.

Global Diammonium Phosphate Price Trend in 2025

The global Diammonium Phosphate market in 2025 was defined by two distinct phases. The first phase, spanning Q1 through Q3 2025, was a sustained rally driven by the convergence of Chinese export restrictions on phosphate, aggressive Indian procurement, rising input costs, and tight inventories across major importing regions. The global average price moved from USD 0.64/KG in Q1 2025 to USD 0.70/KG in Q2 (+9.2 percent) and peaked at USD 0.79/KG in Q3 (+13.0 percent). These moves aligned with the World Bank's April 2025 Commodity Markets Outlook, which documented that Diammonium Phosphate prices had risen approximately 23 percent as part of the broader fertilizer price index increase of 15 percent since the start of the year.

The second phase began in Q4 2025 when prices fell 6.9 percent to USD 0.73/KG as post-season demand eased and supply from Morocco's OCP Group, Saudi Arabia's Ma'aden, and other exporters continued to flow into the market. The World Bank confirmed in its October 2025 Commodity Markets Outlook that Diammonium Phosphate and TSP fell 6 percent and 3 percent respectively in November 2025, month-on-month. Q1 2026 continued the correction, with the global average falling a further 7.6 percent to USD 0.68/KG, though the market remained approximately 17 percent above year-earlier levels. The World Bank projected a 26 percent full-year 2025 increase before an 8 percent 2026 decline, broadly consistent with the Q4 2025 and Q1 2026 directional correction observed in the data.

Note: Global values represent the simple average of African, Indian, European, Middle Eastern, North American, North East Asian, and South American VMP quarterly benchmarks. QoQ percentages are calculated from underlying unrounded averages; displayed prices are rounded to two decimal places.

Africa Diammonium Phosphate Price Trends in 2025

Africa's Diammonium Phosphate market tracked the global directional trend with precision, rising steadily from USD 0.60/KG in Q1 2025 to USD 0.65/KG in Q2 (+8.4 percent) and peaking at USD 0.74/KG in Q3 (+14.7 percent), before falling 5.7 percent to USD 0.70/KG in Q4 and a further 7.9 percent to USD 0.64/KG in Q1 2026. The region also had the lowest starting price of any tracked market outside North East Asia, reflecting Africa's position as an import-dependent region purchasing primarily from Morocco, Saudi Arabia, and occasionally Russia.

Africa is one of the fastest-growing Diammonium Phosphate demand regions globally, driven by expanding agricultural output across sub-Saharan Africa and North Africa, government fertilizer subsidy programmes, and growing food security awareness. Morocco's OCP Group, the world's largest phosphate rock producer and a major Diammonium Phosphate exporter, supplies a significant portion of African demand. Tender activity from African sovereign importers, including Ethiopia's large tender that was highlighted by PriceWatch as tightening global supply chains in Q2 2025, demonstrated that African demand is increasingly active in competitive international tender markets rather than passive import of residual supply.

The Q4 2025 correction to USD 0.70/KG and Q1 2026 dip to USD 0.64/KG remain above the Q1 2025 starting point of USD 0.60/KG, reflecting a structural upward shift in African Diammonium Phosphate import costs driven by tighter global supply. The Q4 correction was moderate relative to sharper falls in India, the Middle East, and South America, suggesting African buyers with government-supported procurement programmes maintained more stable purchasing activity through the seasonal transition.

India Diammonium Phosphate Price Trends in 2025

India's 2025 Diammonium Phosphate price trajectory stands out for the sheer scale of its Q3 surge. From USD 0.66/KG in Q1 2025, prices moved to USD 0.72/KG in Q2 (+9.0 percent) and then jumped dramatically to USD 0.85/KG in Q3 (+17.7 percent), the largest single-quarter regional gain in the dataset. This spike directly reflects India's kharif season procurement cycle, in which the country's agricultural cooperatives and public sector fertilizer companies conduct large-scale import tenders ahead of the summer planting season. Q4 2025 reversed sharply, falling 13.3 percent to USD 0.73/KG, and Q1 2026 continued the correction with a 16.9 percent decline to USD 0.61/KG as the off-season demand trough arrived.

The scale of India's 2025 procurement was documented comprehensively. India imported approximately 5.95 million tonnes of Diammonium Phosphate in the April to December 2025 period, a year-on-year increase of approximately 44 percent as the country aggressively rebuilt inventories that had fallen to historic lows. Major importers NFL (National Fertilizers Limited), IPL (Indian Potash Limited), and KRIBHCO collectively procured over 225,000 tonnes of Saudi Arabia-origin Diammonium Phosphate from Ma'aden at prices in the USD 775 to 781.50/MT CFR range during Q2 2025, with PriceWatch reporting that CFR Kakinada prices peaked at approximately USD 810/MT in August 2025 before correcting. Anticipating long-term supply security needs, Indian public-sector firms signed a five-year supply agreement with Saudi Arabia's Ma'aden for 3.1 million metric tons of Diammonium Phosphate annually beginning in 2025/26, a strategic move to diversify import sources away from China and Russia.

India's domestic retail Diammonium Phosphate price is maintained by government subsidy at INR 1,350 per 50 kg bag, insulating farmers from the full impact of international price swings. However, the subsidy bill expands significantly when import costs rise: higher international prices require larger per-tonne government payments to maintain the retail price cap, creating significant fiscal pressure during peak procurement periods. The Q1 2026 decline to USD 0.61/KG provides welcome relief for the subsidy budget as the rabi season concludes.

European Diammonium Phosphate Price Trends in 2025

Europe was the most expensive Diammonium Phosphate market in the dataset across every quarter, and its prices showed the greatest resilience into Q4 2025 and Q1 2026. Starting at USD 0.74/KG in Q1 2025, European Diammonium Phosphate rose 11.1 percent in Q2 to USD 0.83/KG and a further 11.3 percent in Q3 to USD 0.92/KG, the highest absolute price reading of any region across the entire five-quarter period. Q4 eased only 3.2 percent to USD 0.89/KG, and Q1 2026 fell a modest 3.4 percent to USD 0.86/KG, both declines well below the corrections seen in other markets.

Europe's structural Diammonium Phosphate premium reflects its import dependency and evolving trade policy environment. The EU's introduction of tariffs on agricultural imports from Russia and Belarus, including nitrogen-based fertilizers, announced and being phased in over three years from 2025 onwards (World Bank Commodity Markets Outlook, October 2025), has constrained access to lower-cost Russian fertilizer flows that had historically provided European buyers with competitive import alternatives. As Russian exports were redirected to Brazil, India, and other non-EU markets, European buyers became more reliant on higher-priced supply from Morocco, Saudi Arabia, and domestic EU production.

The persistence of European Diammonium Phosphate premiums above USD 0.86/KG in Q1 2026, even as other regions corrected sharply, reflects both the structural supply constraints from EU trade policy and the higher production cost base of European Diammonium Phosphate producers who face elevated energy and logistics costs. PriceWatch market commentary noted that Hamburg port congestion and rail disruptions contributed to tightened inland Diammonium Phosphate delivery in Q3 2025, adding logistical cost to feedstock and production expenses. The EU tariff timeline means European supply constraints from Russian fertilizer exclusion are expected to persist through at least 2027.

Middle East Diammonium Phosphate Price Trends in 2025

The Middle East traced a clear bell curve through 2025, rising from USD 0.64/KG in Q1 to USD 0.70/KG in Q2 (+8.7 percent) and peaking at USD 0.80/KG in Q3 (+15.3 percent), before falling sharply in Q4 by 12.1 percent to USD 0.71/KG and a further 14.0 percent to USD 0.61/KG in Q1 2026. The regional trajectory reflects the Middle East's unique position as both a major Diammonium Phosphate exporter (Saudi Arabia's Ma'aden via its Ras Al Khair complex) and an importing market across other GCC and MENA countries.

Saudi Arabia's Ma'aden phosphate operations at Ras Al Khair represented a critically important supply source for global Diammonium Phosphate during the Chinese export restriction period. PriceWatch documented that major Indian importers NFL, IPL, and KRIBHCO procured over 225,000 tonnes of Saudi-origin Diammonium Phosphate from Ma'aden at prices in the USD 720s FOB range in Q2 2025, with netbacks pulled to these levels by aggressive Indian demand. The Middle East regional price benchmark rising to USD 0.80/KG in Q3 2025 partly reflects this elevated Saudi export pricing, as Ma'aden and other regional producers benefited from the tight global supply environment.

The sharp Q4 2025 and Q1 2026 declines reflect both the natural post-season demand easing from Indian buyers (who had completed their kharif procurement) and the global market dynamic of easing into a well-supplied environment as Chinese export flows modestly normalized in late 2025. The World Bank's October 2025 CMO documented that Diammonium Phosphate prices eased in October and November after the Q3 surge. The Middle East Q1 2026 price of USD 0.61/KG, which is close to the Q1 2025 starting point, suggests a round-trip that leaves producers only modestly better off than at the start of the bull market.

North America Diammonium Phosphate Price Trends in 2025

North America posted consistent quarterly gains through Q3 2025 before a gradual correction. Prices rose from USD 0.64/KG in Q1 to USD 0.71/KG in Q2 (+10.0 percent) and USD 0.80/KG in Q3 (+12.8 percent), before falling a moderate 3.6 percent to USD 0.77/KG in Q4 2025, then dropping a more significant 10.5 percent to USD 0.69/KG in Q1 2026. The Q3 2025 peak at USD 0.80/KG was the highest North American price in the tracked period, consistent with PriceWatch data showing FOB New Orleans prices at USD 730/MT at the end of Q2 2025, rising further through the summer.

North American Diammonium Phosphate prices in 2025 were shaped by both domestic supply and demand dynamics and the global market environment. U.S. Diammonium Phosphate inventories entered 2025 at historically low levels, amplifying price sensitivity to seasonal demand spikes. The United States is both a significant Diammonium Phosphate producer (Mosaic Company, the largest U.S. phosphate producer) and a major agricultural consumer with spring planting demand in the March to May window creating predictable seasonal procurement peaks. The Q2 2025 gain of 10 percent tracked closely with the global fertilizer price index increase of 15 percent in the first half of the year documented by the World Bank in its April 2025 Commodity Markets Outlook.

The Q4 2025 correction to USD 0.77/KG was among the most moderate of any region, as North American fall application demand (Diammonium Phosphate is applied pre-plant or post-harvest in the U.S. Corn Belt) partially absorbed supply. The Q1 2026 decline of 10.5 percent to USD 0.69/KG reflects pre-spring positioning in a lower global price environment. Despite this correction, USD 0.69/KG remains above the Q1 2025 starting point of USD 0.64/KG, indicating that the structural supply constraints that drove the 2025 rally had not fully unwound by Q1 2026.

North East Asia Diammonium Phosphate Price Trends in 2025

North East Asia was unambiguously the most anomalous market in the Diammonium Phosphate dataset. Every other region peaked in Q3 2025 and fell in Q4 and Q1 2026. North East Asia, by contrast, rose in every single quarter from Q1 through Q4 2025 and then surged dramatically in Q1 2026. Prices began at USD 0.53/KG in Q1 2025, the lowest of all seven regions, and moved steadily to USD 0.56/KG (+5.5 percent) in Q2, USD 0.58/KG (+3.1 percent) in Q3, USD 0.59/KG (+2.8 percent) in Q4, before accelerating sharply to USD 0.70/KG (+17.8 percent) in Q1 2026. By Q1 2026, North East Asia had moved from the cheapest to a mid-range market.

The primary driver of this pattern is China's domestic Diammonium Phosphate production cost environment and its export policy architecture. China is the world's largest phosphate producer, historically a major stabilizing force in global Diammonium Phosphate markets through its export volumes. In 2025, China maintained strict phosphate export restrictions, partly to secure phosphate supplies for lithium iron phosphate (LFP) battery manufacturing for the electric vehicle sector, a policy confirmed in the World Bank's October 2025 Commodity Markets Outlook. With exports constrained, Chinese domestic Diammonium Phosphate prices reflected internal supply-demand balance rather than international export prices. As the World Bank documented, liquid sulfur prices nearly tripled since end-2024 and ammonia prices were approximately 15 percent higher by late 2025, inflating Chinese Diammonium Phosphate production costs and pushing domestic prices steadily higher.

The Q1 2026 surge to USD 0.70/KG reflects the confluence of rising Chinese production costs and geopolitical disruption to Middle East phosphate supply routes. China's domestic prices responded to tighter input cost conditions while the broader regional market was influenced by the disruption to Saudi Arabia's Ma'aden export flows, which had been one of the region's primary import sources. At USD 0.70/KG, North East Asia still remains below European levels but has substantially narrowed the gap from its Q1 2025 position when the differential was 40 percent.

South America Diammonium Phosphate Price Trends in 2025

South America followed a trajectory closely mirroring the global average, with strong Q2 and Q3 gains followed by significant Q4 and Q1 2026 corrections. Prices rose from USD 0.65/KG in Q1 2025 to USD 0.71/KG in Q2 (+10.5 percent) and peaked at USD 0.82/KG in Q3 (+14.6 percent), before falling 10.8 percent to USD 0.73/KG in Q4 and a further 14.6 percent to USD 0.62/KG in Q1 2026. The symmetric scale of the Q3 gain and Q1 2026 decline is notable, with the Q1 2026 price only marginally above the Q1 2025 starting point.

Brazil dominates South American Diammonium Phosphate demand, as the world's fourth-largest fertilizer consumer and a nation that imports over 80 percent of its fertilizer needs. Brazil's agricultural calendar creates a distinct seasonal procurement pattern: summer crop (soybeans and corn) fertilizer is purchased from August through November ahead of October to January planting, driving Q3 and Q4 procurement that supports the global price peak. The Q3 2025 surge to USD 0.82/KG reflects this seasonal import surge, as Brazilian soy farmers prepared for what was anticipated to be a record 2025/26 soybean harvest, requiring elevated phosphate applications. PriceWatch documented that Brazilian agricultural activity and rising fertilizer needs for corn cultivation intensified phosphate requirements in Q2 and Q3.

The Q4 and Q1 2026 corrections reflect the completion of the South American pre-planting procurement window and the arrival of harvested crops providing market confirmation of supply. Brazil's high fertilizer import exposure means South American prices track international benchmark prices closely, with limited buffer from domestic production. The World Bank Commodity Markets Outlook noted that Russia has been redirecting fertilizer exports from Europe to Brazil and India, which partly explains competitive supply availability in Q4 and Q1 2026 that supported price normalization in South America.

What Factors Drove Diammonium Phosphate Costs in 2025?

• China's phosphate export restrictions: China, the world's largest phosphate producer, maintained strict export curbs on Diammonium Phosphate and other phosphate fertilizers through 2025, partly to prioritize domestic supply for LFP battery manufacturing supporting China's electric vehicle industry. This policy removed a historically large and stabilizing export volume from global markets, forcing buyers in India, Brazil, the EU, and Africa to compete for supply from Morocco, Saudi Arabia, Russia, and Jordan at higher prices. The World Bank October 2025 CMO confirmed these restrictions 'sustained global market tightness' through the first half of 2025.
• Rising input costs: liquid sulfur and ammonia: Diammonium Phosphate production requires both phosphoric acid (needing sulfuric acid from sulfur) and ammonia. The World Bank documented that liquid sulfur prices nearly tripled since end-2024 and ammonia prices were approximately 15 percent higher by late 2025. These two cost increases substantially elevated Diammonium Phosphate production costs globally, providing a cost-push floor under prices even as seasonal demand varied. The World Bank's fertilizer affordability index for Diammonium Phosphate reached levels above the early-2022 peak, reflecting this sustained cost pressure.
• India's record import surge: India, the world's largest Diammonium Phosphate importer, imported approximately 5.95 million tonnes of Diammonium Phosphate in the April to December 2025 period, approximately 44 percent more than the prior year period. This aggressive procurement, driven by the need to rebuild inventories from historically low levels and support the kharif season, directly tightened global supply availability during Q2 and Q3 2025 and contributed materially to the H1 price rally.
• EU tariffs on Russian and Belarusian fertilizers: The European Union imposed tariffs on agricultural imports including nitrogen-based fertilizers from Russia and Belarus, being phased in over three years from 2025 (World Bank Commodity Markets Outlook, October 2025). These measures redirected Russian fertilizer export flows from Europe to Brazil, India, and other markets, simultaneously increasing European supply tightness and contributing to competitive sourcing dynamics in developing economy markets.
• Historically low starting inventories in North America: North American Diammonium Phosphate inventories entered 2025 at historically low levels, amplifying price sensitivity to spring planting demand spikes. This inventory deficit meant that North American buyers had limited buffer stock to draw on, requiring early and more aggressive procurement at prevailing market prices rather than being able to wait for seasonal price softening.
• Seasonal agricultural demand cycles: Diammonium Phosphate prices follow predictable seasonal patterns: prices typically rise ahead of spring planting (Q1 to Q2 in the Northern Hemisphere) and the kharif season in India (Q2 to Q3), then ease in the post-harvest window. The 2025 pattern followed this template closely, with Q3 representing the global price peak across most regions. The sharpness of the Q3 peak and Q4/Q1 2026 correction were amplified by the unusual supply constraints from China and the exceptional scale of Indian procurement.

Diammonium Phosphate Market Forecast for 2026

The Diammonium Phosphate market forecast for 2026 is cautiously bearish relative to the 2025 peaks, with the World Bank Commodity Markets Outlook projecting an approximately 8 percent price decline in 2026 as new production capacity comes online and supply pressures ease. The Q4 2025 and Q1 2026 corrections already visible in regional data are consistent with this directional forecast. However, the pace and depth of the 2026 correction will depend critically on three variables: the trajectory of Chinese phosphate export policy, the evolution of sulfur and ammonia input costs, and the geopolitical situation in the Middle East.

On the supply side, the World Bank's forecast assumes that Russia continues diverting fertilizer exports from Europe to Brazil and India, adding competitive supply to major import markets and helping normalize prices from the 2025 peaks. New production capacity expected in East Asia and the Middle East through 2026 to 2027 will add to global supply. However, OCP Group, Ma'aden, and PhosAgro are already operating near capacity, meaning any significant increment to global supply requires new investment that takes years to complete.

Geopolitical factors represent the primary upside risk. The Middle East conflict context flagged by market analysts in Q1 2026, involving potential disruption to Saudi Arabia's phosphate export logistics through the Strait of Hormuz, could quickly offset any supply normalization benefit from relaxed Chinese restrictions. Similarly, any renewed Chinese phosphate export ban would tighten global markets rapidly, given how dependent importing nations became on alternative sources during 2025.

Expected Diammonium Phosphate Price Range (2026)

Europe will remain the most expensive market, supported by structural EU trade policy constraints. North East Asia's wide range reflects the dual uncertainty of Chinese export policy and input cost trajectories. India's range is anchored by government subsidy policy at the lower end and kharif season procurement dynamics at the upper end.

Key Analyst Insights for the Diammonium Phosphate Market

Diammonium Phosphate pricing in 2025 was a case study in how supply-side policy decisions by a single major producer (China) can reverberate through an entire global commodity market. The 26 percent projected full-year increase, as documented by the World Bank, was not demand-driven: global agricultural production continued normally, food commodity prices were falling, and farmers were being squeezed by deteriorating input-to-output price ratios. The price surge was primarily a supply construct. For 2026, the key analytical questions are whether supply normalization will outpace any demand softening:

• China's export policy is the single most powerful variable in the global Diammonium Phosphate market. The World Bank noted that China has been constraining phosphate exports to secure inputs for lithium iron phosphate batteries used in electric vehicles. This policy intersection between food security and energy transition is structural, not cyclical. Even if China partially eases export restrictions in 2026, the LFP battery sector's continued growth means phosphate will compete with agricultural fertilizer for Chinese domestic supply for years. Global Diammonium Phosphate buyers should not plan on a return to Chinese export volumes of the 2019 to 2022 period.
• India's strategic shift to secure multi-year supply agreements is a market structure change. The five-year deal between Indian public-sector firms and Ma'aden for 3.1 million metric tons annually signals that India will lock up a significant portion of Saudi Arabian export capacity on long-term contracts. This reduces the spot market availability that other buyers, particularly from Africa and Southeast Asia, can access from the Middle East, potentially sustaining higher tender prices even in years of easing global demand.
• Input cost trajectories are critical to watch. The World Bank documented that liquid sulfur prices nearly tripled since end-2024. Sulfur is a by-product of oil and gas refining, and its availability is linked to refinery throughput and oil production decisions. Any sustained reduction in global oil production that tightens sulfur supply would prevent the Diammonium Phosphate production cost reduction that the World Bank's 2026 price easing forecast assumes. Conversely, a significant crude oil price drop that opens sulfur availability could accelerate the price correction.
• European supply structure is changing permanently. With EU tariffs on Russian fertilizer imports being phased in over three years, and Russia redirecting exports to Brazil and India, European buyers face a multi-year process of resourcing their Diammonium Phosphate procurement toward higher-cost origins. The premium that Europe maintained throughout 2025, reaching USD 0.92/KG at the Q3 peak, is likely a structural feature of the European market for at least the next two to three years rather than a cyclical aberration.
• Africa's fertilizer demand trajectory has long-term bullish implications for global Diammonium Phosphate consumption. Africa is the world's fastest-growing agricultural market by volume, with expanding planted area, government subsidy reforms, and food security policy commitments driving fertilizer adoption growth. Morocco's OCP Group has identified African market development as a strategic priority, and the World Bank's programs for African fertilizer access under the Africa Fertilizer Finance Mechanism (AFFM) represent a structured growth driver that is largely insulated from the cyclical demand swings that characterize Indian and North American procurement.

Key Takeaways for Buyers and Manufacturers

For Buyers

• The Q4 2025 and Q1 2026 price correction creates forward coverage opportunities at lower cost than the Q3 2025 peaks. Agricultural buyers with storage capacity for pre-season procurement should evaluate current Diammonium Phosphate prices against their 12-month procurement cost history and consider building inventory positions before potential spring 2026 demand drives prices back toward Q2 to Q3 levels.
• Diversify import origin relationships actively. The 2025 experience demonstrated the risk of over-reliance on Chinese phosphate supply, which proved intermittent due to export restrictions. Qualified supplier relationships with Morocco (OCP), Saudi Arabia (Ma'aden), Russia (PhosAgro), Jordan (JPMC), and Tunisia should be maintained concurrently to provide procurement flexibility when individual origin supply tightens.
• Track Chinese phosphate export policy announcements as the most important near-term market signal. Any announced relaxation of Chinese Diammonium Phosphate export restrictions would increase global supply rapidly and potentially trigger a faster price correction than the World Bank's 8 percent 2026 baseline forecast. Conversely, any tightening of restrictions or new export bans would quickly reverse the current Q1 2026 correction.
• Indian government subsidy policy announcements are a critical demand signal for global Diammonium Phosphate markets. India's procurement scale, 5.95 million tonnes in April to December 2025, means that any increase in the government's subsidy allocation or seasonal procurement targets will be immediately visible in global tender activity and prices. Monitor Indian fertilizer ministry communications and tender award announcements.
• European buyers should accelerate long-term supply contract development with non-Russian, non-Belarusian origins. With EU tariffs on Russian fertilizer being phased in over three years, the transition window for establishing alternative supply chains is now, not when tariff implementation is complete and competition for alternative-origin supply is at peak intensity.

For Manufacturers

• Diammonium Phosphate producers should hedge sulfur and ammonia procurement costs using available financial and physical hedging tools. The World Bank documented that liquid sulfur prices nearly tripled in 2025, representing a production cost shock that significantly compressed margins when passed through to constrained selling prices. Long-term sulfur supply agreements or price-collar structures reduce this input cost volatility risk.
• Expand African market development strategies. Africa's growing import demand, government-supported procurement programmes, and developing fertilizer subsidy frameworks represent the most consistent demand growth channel in global Diammonium Phosphate trade. OCP Group's established logistics networks and strategic partnerships across sub-Saharan Africa provide a template for building durable African distribution presence. Producers with African market positions benefit from demand that is less seasonally concentrated than Indian or North American procurement.
• Invest in phosphate rock supply security. With global phosphate reserves concentrated in Morocco (the largest reserve holder), China, and the Western Sahara, phosphate rock access is a strategic constraint for Diammonium Phosphate manufacturers outside those regions. Producers operating in phosphate-rich regions have a structural cost advantage that will become more pronounced if Chinese exports remain restricted and Moroccan OCP capacity becomes more fully committed to downstream integration.
• For North American manufacturers, monitor spring planting demand indicators closely. USDA corn and soybean planting intention surveys, released in late March annually, are the most direct leading indicator of spring 2026 Diammonium Phosphate demand. These surveys, combined with Midwest farmer soil test data showing existing phosphorus reserves, provide advance signals of whether the 2025 inventory rebuild cycle has adequately prepared U.S. farmers or whether another procurement surge is developing.
• Plan for multi-year EU tariff phase-in effects on trade flows. Russian Diammonium Phosphate exports diverted from Europe to Brazil and India represent a structural shift in competitive supply dynamics for those markets. Producers currently competitive in Brazilian or Indian markets should monitor whether increased Russian supply in those destinations is compressing premiums, and adjust pricing and logistics strategies accordingly.