OCP's Accelerated Maintenance Squeezes DAP as Hormuz Disruptions Threaten Critical Inputs

1. OCP's Accelerated Maintenance: The World's Dominant Phosphate Supplier Goes Offline

OCP Group — Morocco's state-owned phosphate giant — is the single most important entity in the global phosphate industry. Controlling approximately 70% of the world's phosphate rock reserves and operating integrated processing facilities that produce DAP, MAP, phosphoric acid, and phosphate rock for export, OCP's operational decisions have outsized impacts on global supply balances. When OCP breathes in, the market holds its breath.

In recent weeks, OCP has accelerated its maintenance schedule at key DAP and MAP production facilities in Jorf Lasfar and Safi — the two main processing hubs on Morocco's Atlantic coast. The maintenance programme, which industry sources indicate includes both planned turnarounds and unplanned outage extensions, is removing an estimated 150,000–250,000 tonnes of DAP-equivalent production capacity from the market over a 4–6 week period. While plant maintenance is routine in the fertiliser industry, the timing — coinciding with India's pre-kharif procurement season and already tight global supply — amplifies the market impact.

Why OCP's Maintenance Matters More Than Others

OCP's market position is unique in three respects that make its maintenance schedule a systemic risk factor. First, OCP is the lowest-cost integrated producer — its phosphate rock is mined at costs below $30–40/t and its processing facilities benefit from proximity to Atlantic shipping routes. When OCP reduces output, the marginal tonne lost is a low-cost tonne, which means higher-cost producers elsewhere in the world must increase output to compensate — pushing the global cost curve up. Second, OCP's customer relationships are diverse and strategic — it supplies Indian, Brazilian, European, and African buyers, and any reduction in availability creates a scramble for alternatives across multiple regional markets simultaneously. Third, OCP's strategic patience — as a state-owned enterprise, it can prioritise margin management over volume maximisation, meaning it has no incentive to rush maintenance completion to capture short-term price spikes.

What to Watch: Maintenance Duration and Communication

The market is closely watching OCP's communication regarding the maintenance schedule. If the accelerated maintenance is extended beyond initial estimates — for example, due to parts availability, contractor availability, or the discovery of additional issues during the turnaround — the supply impact could be significantly larger. Conversely, if OCP completes maintenance ahead of schedule and ramps output quickly, some of the current supply tightness could ease. The asymmetry of information — OCP knows its schedule, the market can only guess — creates a volatility premium in current prices.

2. Strait of Hormuz: The Chokepoint That Threatens DAP's Critical Inputs

While OCP's maintenance is a direct supply-side disruption, a second — potentially more consequential — risk is brewing in the Strait of Hormuz. The 33-kilometre-wide chokepoint between the Arabian Gulf and the Gulf of Oman handles approximately 20–25% of the world's seaborne sulfur trade, along with significant volumes of ammonia and other petrochemicals. For the DAP industry, the Strait of Hormuz is not just a geopolitical flashpoint — it is the supply artery for two of the three essential inputs to DAP manufacturing.

Sulfur: The Unsung Critical Input

Sulfur is essential to DAP production because it is used to produce sulfuric acid, which in turn is used to process phosphate rock into phosphoric acid — the key intermediate in DAP manufacturing. The production of one tonne of DAP requires approximately 0.4–0.5 tonnes of sulfur (consumed in the form of sulfuric acid). For a world-scale DAP plant producing 1 Mt/yr, that means 400,000–500,000 tonnes of sulfur must be sourced annually — primarily from oil and gas desulfurisation (the Claus process), which is concentrated in the Middle East.

Morocco — home to OCP's massive processing complex — is the world's largest sulfur importer, bringing in approximately 5–6 million tonnes annually, the vast majority of which originates in the Middle East and transits the Strait of Hormuz. Any disruption to Hormuz shipping — whether from military incidents, insurance premium spikes, or diplomatic escalation — directly threatens OCP's ability to maintain DAP production at planned rates.

Ammonia: The Nitrogen Half of DAP

DAP is diammonium phosphate — it is half phosphate (P₂O₅) and half ammonia (NH₃). Producing one tonne of DAP requires approximately 0.4–0.5 tonnes of ammonia (as a source of nitrogen). Ammonia production is heavily concentrated in countries with low-cost natural gas — including Qatar, Saudi Arabia, Russia, and the US — and a significant share of global ammonia trade transits the Strait of Hormuz.

The World Bank has already highlighted Strait of Hormuz disruptions as a key upside risk to fertiliser prices in its April 2026 Commodity Markets Outlook. The analysis notes that any significant reduction in Hormuz transit — even a temporary one — would raise ammonia and sulfur prices globally, feeding through to higher DAP production costs and, ultimately, higher DAP market prices. The World Bank has flagged a scenario where fertiliser prices rise 31–60% in 2026, with Hormuz disruptions as a primary driver.

3. The Compounding Effect: When Maintenance and Input Disruptions Collide

The critical insight for DAP markets in late May 2026 is that the OCP maintenance and Hormuz disruptions are not independent risks — they interact and compound each other in ways that amplify the supply squeeze beyond what either factor would produce alone.

The OCP-Hormuz Feedback Loop

OCP is simultaneously a DAP producer and a massive sulfur importer. When OCP accelerates maintenance, it reduces DAP output — tightening the DAP market. But OCP also needs sulfur to operate its remaining DAP and phosphoric acid capacity. If Hormuz disruptions raise sulfur prices or reduce sulfur availability, OCP faces higher input costs — potentially reducing margins on its remaining DAP production — and, in an extreme scenario, could be forced to reduce operating rates at unaffected facilities due to sulfur shortages.

This creates a feedback loop: maintenance reduces DAP output → DAP prices rise → the market becomes more sensitive to any additional supply loss → Hormuz disruptions threaten sulfur supply → OCP and other DAP producers face input cost pressure → DAP prices rise further → the market prices in both the realised and the expected supply loss. The result is a price premium that reflects not just the actual disruption but the risk of further disruption — a volatility premium that persists as long as the risks remain unresolved.

Broader Industry Implications

The compounding effect is not limited to OCP. Other DAP producers are also exposed to Hormuz risk. European DAP producers — who import significant volumes of ammonia from the Middle East — face similar input cost pressure. Indian DAP producers — who import sulfur and ammonia through the Strait of Hormuz — are also exposed. The entire global DAP value chain, from Morocco to India to Europe, is linked through the Hormuz chokepoint. A sustained disruption would cascade through the industry, raising production costs across the board and reducing global DAP output even at plants not directly affected by OCP's maintenance.

Historical Precedent

The 2022 fertiliser crisis provides the closest historical analogue. In early 2022, multiple supply disruptions — including sanctions on Russian fertiliser exports, Chinese export restrictions, and European gas price spikes — coincided to produce a perfect storm in the global fertiliser market. DAP prices surged above $1,000/t CFR India, triggering food security concerns across importing countries. The current combination of OCP maintenance and Hormuz risk is not yet at that scale, but the pattern — multiple independent disruptions compounding in a concentrated market — is recognisably similar.

Outlook: A Market on Edge — Two Disruptions, One Price

The DAP phosphate market is navigating two simultaneous supply risks that, individually, would be manageable but together create an unusually volatile trading environment. OCP's accelerated maintenance is a concrete, measurable supply loss — tonnes that are not being produced today. The Strait of Hormuz disruptions are a contingent risk — a threat to future supply that the market must price in even if it does not fully materialise.

For the remainder of May and into Q3 2026, the DAP market is likely to remain tight and volatile. The central scenario sees prices remaining at the upper end of the $630–890/t range (March 2026), with the CFR India premium potentially widening further as buyers compete for available cargoes ahead of the kharif season. If both the OCP maintenance and Hormuz risks resolve favourably — maintenance completed on schedule, Hormuz tensions easing — prices could moderate toward the lower end of the range. But if either risk materialises negatively — especially if both do — the upside scenario of prices pushing above $900/t becomes increasingly plausible.

For commercial buyers, the strategic implication is to treat the current supply environment as fragile. Forward procurement should incorporate contingency for extended OCP outages, Hormuz risk premiums, and the potential for sudden price spikes. The market is not in crisis — but it is priced for one.