Kpler Confirms 1.1 Million Tonnes Fertilizer Stranded in Hormuz—Quantifies Gulf Supply Loss, Validates Sulfur Shortage Cascade Limiting Phosphoric Acid Production Globally

Vessel tracking specialist Kpler confirmed more than 1.1 million tonnes fertilizer physically stranded in Strait of Hormuz as blockade enters Week 4, according to data released Monday, while sulfur shortage from Gulf petroleum refineries (producing 44% of global sulfur exports as desulfurization byproduct) cascades into phosphate fertilizer production worldwide—quantifying physical supply loss and validating multi-input crisis thesis where sulfur bottleneck limits phosphoric acid manufacturing capacity even when rock phosphate feedstock available from Morocco/Algeria/Egypt alternatives, explaining sustained phosphate fertilizer tightness (New Orleans DAP reported elevated, US Gulf now reported +5% week-over-week) despite Morocco continuing rock exports at full 30-35 million tonnes annual capacity. The 1.1 million tonnes stranded fertilizer represents first comprehensive vessel-tracking quantification of Hormuz-blocked supplies, providing critical data for market supply-demand balancing: **Composition Analysis (Estimated Breakdown):** - **Urea (nitrogen fertilizer, 46-0-0):** Likely 600,000-700,000 tonnes (55-65% of total stranded volume), reflecting Gulf region's petroleum-based urea production dominance (Saudi Arabia, Qatar, UAE combined ~25-30 MT annually, representing ~15% of global urea supply) - **DAP/MAP (phosphate fertilizers):** Estimated 250,000-350,000 tonnes (23-32% of stranded volume), primarily Saudi Ma'aden eastbound Asia shipments plus Jordan JPMC cargoes loaded pre-blockade now trapped - **NPK blends and other products:** 100,000-150,000 tonnes (9-14% of volume) For rock phosphate markets, the 250,000-350,000 tonnes stranded DAP/MAP translates to approximately 87,500-140,000 tonnes rock phosphate equivalent feedstock (at 0.35-0.40 tonnes rock per tonne finished fertilizer), representing 3-4 weeks of Gulf phosphate production now physically inaccessible to destination markets. This one-time inventory loss compounds ongoing supply disruption from production capacity offline (Saudi Ma'aden 6-7 MT annually Asia exports, Jordan JPMC 2-3 MT, Qatar QAFCO 3-4 MT totaling 11-14 MT). **Sulfur Shortage Cascade—Independent Bottleneck Beyond Rock Availability:** Kpler's confirmation of sulfur shortage cascading to phosphate production globally validates March 9 analysis identifying sulfur as critical constraint. The cascade mechanism: **Stage 1: Gulf Petroleum Refinery Sulfur Production Blocked** - Gulf refineries (Saudi Arabia, UAE, Kuwait, Iran) produce 15-20 million tonnes sulfur annually as crude oil desulfurization byproduct - This represents 44% of global sulfur exports (total ~40-45 MT annually traded) - Hormuz blockade eliminates sulfur shipping from Gulf → Asia, limiting access for major importers (China 8-12 MT annually, India 4-6 MT, Southeast Asia 3-5 MT) **Stage 2: Phosphoric Acid Production Constrained** - Wet-process phosphoric acid manufacturing requires 2.6-2.8 tonnes sulfuric acid (H₂SO₄) per tonne P₂O₅ produced - Sulfuric acid produced from elemental sulfur combustion (S + O₂ → SO₂ → SO₃ + H₂O → H₂SO₄) - Sulfur shortage → acid shortage → phosphoric acid production bottleneck - India phosphoric acid plants (RCF, GSFC, FACT, Paradeep Phosphates) require continuous sulfur supply to convert imported Morocco rock phosphate into acid and downstream DAP/MAP **Stage 3: DAP/MAP Production Limited Despite Rock Availability** - Even if Morocco supplies sufficient rock phosphate (30-35 MT export capacity operational), Indian acid plants cannot convert to finished fertilizers without sulfur for acid production - Forces India toward increased finished DAP/MAP imports (vs rock + domestic acid production model), increasing dependence on Morocco/Russia integrated suppliers - Explains elevated DAP pricing globally despite rock phosphate supply from accessible sources (Morocco, Algeria, Egypt continuing exports) The sulfur bottleneck creates strategic advantage for vertically integrated phosphate producers: **Morocco OCP:** Operates sulfur imports from alternative sources (Canada 8-10 MT annually, Russia 6-8 MT, US 3-4 MT), prioritizes internal allocation to captive phosphoric acid plants at Jorf Lasfar and Safi. Integration allows OCP to: - Maintain phosphoric acid production when non-integrated competitors face sulfur shortages - Capture integrated margin across full value chain (rock mining → acid → DAP/MAP) vs selling merchant rock to constrained buyers - Price finished DAP/MAP based on downstream scarcity rather than rock input costs **Non-Integrated Producers Disadvantaged:** Algeria (Somiphos/Ferphos), Egypt (EMRA), Togo/Senegal export primarily merchant rock to buyers who must source sulfur separately and operate acid plants independently. These buyers (Indian fertilizer companies, Chinese processors) face sulfur procurement challenges limiting conversion capacity, reducing willingness to pay elevated prices for merchant rock if they cannot convert to finished products economically. The 1.1 MT stranded fertilizer plus sulfur cascade validates why Morocco sustains elevated rock phosphate pricing despite alternative suppliers (Algeria, Egypt, West Africa) offering lower-grade rock at competitive levels—the bottleneck is not rock availability but downstream conversion capacity constrained by sulfur shortage, positioning integrated producers (Morocco OCP primarily) with pricing power throughout crisis duration.