Phosphatic Fertilizer Manufacturing in the United States (NAICS 325312)

1. Overview

Phosphorus is one of the three nutrients every crop needs (with nitrogen and potassium), and there is no substitute for it — plants literally cannot grow without it. This industry takes mined phosphate rock and turns it into the finished, shippable fertilizers that farmers spread on fields, above all DAP (diammonium phosphate) and MAP (monoammonium phosphate), the two granular products that carry most of the world's crop phosphorus.[1][2]

For an investor, the appeal and the danger are the same thing: this is a commodity manufacturing business tied to a global price cycle. When phosphate is scarce, integrated producers that own their own rock earn very high margins; when supply loosens, prices and profits fall hard. The U.S. is the world's leading producer and consumer of phosphate rock, but its ore is depleting and its finished-fertilizer market increasingly leans on imports — a mix that has kept domestic producers profitable and made the sector politically sensitive.[2][3]

Ways in differ sharply by investor type. Public-market investors have essentially one U.S.-listed pure play (The Mosaic Company) plus one large diversified producer (Nutrien) and a handful of foreign names; there is no broad "phosphate ETF." Private capital shows up as the family-owned J.R. Simplot Company, private-equity interest in mineral rights and logistics, and — increasingly — venture and infrastructure money chasing phosphate's newer role as a raw material for lithium-iron-phosphate (LFP) batteries.[4][5]

2. What it is and how it's structured

In scope (NAICS 325312): plants that make phosphatic fertilizer materials — ammoniated phosphates (DAP, MAP), normal and triple superphosphate (TSP), and phosphoric acid produced for fertilizer use. The classic process reacts phosphate rock with sulfuric acid to make phosphoric acid, then reacts that with ammonia to granulate DAP or MAP. Mosaic describes DAP as an 18-46-0 nutrient and MAP as 11-52-0 (expressing their nitrogen, phosphate, and potash analyses, respectively).[6] The economics reward vertical integration: the large players own the mine, the beneficiation plant, the sulfuric- and phosphoric-acid units, and the granulation lines on one integrated site.[1][6]

The plants are unusually logistics-intensive. Rock slurry may travel by pipeline from a mine; sulfur arrives by vessel, barge, rail, or truck; ammonia arrives by pipeline, rail, or truck; and finished fertilizer moves through railcars, barges, warehouses, and river or ocean terminals. Mosaic's North American system, for example, links Florida mines and acid plants with Louisiana processing facilities, Gulf Coast sulfur terminals, ammonia terminals, and inland distribution warehouses.[6]

Explicitly excluded (these sit in adjacent codes an investor should not conflate):

• 212390 – Other Chemical and Fertilizer Mineral Mining, which includes phosphate rock mining itself (the upstream ore).[2]
• 325311 – Nitrogenous Fertilizer Manufacturing (ammonia, urea, UAN — a different chemistry and cost driver; CF Industries is the U.S. bellwether there).
• 325314 – Fertilizer (Mixing Only) Manufacturing — regional blenders that mix already-made nutrients.
• 325320 – Pesticide and Other Agricultural Chemical Manufacturing (crop protection).
• 424910 – Farm Supplies Merchant Wholesalers and the ag-retail channel that resells fertilizer to farmers.

Ownership mix: heavy industry dominated by a few integrated corporations, not owner-operators or government. In North America only a handful of companies run DAP/MAP granulation complexes — Mosaic, Nutrien, J.R. Simplot, and Itafos — across roughly nine sites.[4] Ownership is a blend of large-cap public (Mosaic, Nutrien), a private family company (Simplot), and a small listed operator (Itafos, controlled by an affiliate of private-investment firm Castlelake).[7]

3. How big it is (federal figures)

U.S. Census and related federal statistics for NAICS 325312:

Two reads on these numbers. First, concentration is extreme: an HHI above 2,500 is the federal threshold for "highly concentrated," and this industry sits just below it, with the top four companies making 86% of shipments.[8] Second, the count of "60 firms / 79 establishments" overstates how many real competitors there are — most of the output comes from the four integrated majors, and the rest of the Census count is small specialty-phosphate and materials producers. An establishment is a location, not a firm, and the count includes smaller mixed-product facilities; it should not be read as 79 independent integrated phosphate producers.[9]

Undercount and value-chain caveats. Unlike farming or a trades-heavy sector, this is a concentrated heavy-manufacturing industry, so federal business statistics capture it cleanly — there is no army of tiny or informal operators being missed. The real caveat is scope: NAICS 325312 is only the manufacturing step. The upstream mining (212390) and the downstream wholesale/retail distribution live in other codes, so this one number understates the full economic footprint of "phosphate fertilizer" in the U.S. And because imports now supply a growing slice of U.S. consumption, domestic manufacturing shipments understate how much phosphate fertilizer Americans actually use.[2][3]

For scale on the raw material: USGS reports that five companies operated ten phosphate-rock mines in four states in 2025, producing an estimated 20 million metric tons of marketable phosphate rock worth roughly $1.9 billion at about $100 per ton, from Florida, Idaho, North Carolina, and Utah — with Florida's "Bone Valley" district the historic heart of it. More than 95% of that rock goes into wet-process phosphoric and superphosphoric acid for fertilizer.[2][11]

4. The investable universe

There is effectively one U.S.-listed pure-play and a short bench behind it. Market values are mid-2026 approximations and move with the commodity cycle.

How to read it: Mosaic is the closest thing to a phosphate bet, but even it also produces potash. Nutrien gives you phosphate exposure diluted inside a much larger, more stable diversified fertilizer-and-retail business — its 2025 phosphate sales of $1.734 billion were a small fraction of the company.[12] As of first-quarter 2026, Nutrien was reviewing strategic alternatives for its phosphate business, potentially creating a divestiture or partnership opportunity during the year.[16] Foreign majors dominate the export trade — Morocco's state-owned OCP, Russia's PhosAgro and EuroChem, Saudi Arabia's Ma'aden, and Israel-based ICL Group (NYSE: ICL) — but of those only ICL is readily accessible to a U.S. public investor, and none is a clean U.S.-phosphate play. CF Industries (NYSE: CF) is frequently mislabeled here; it is a nitrogen producer, not phosphate.

5. How the money works

Owners in this business make money on a processing spread: the gap between the price of finished DAP/MAP and the combined cost of the three inputs — phosphate rock, sulfur (as sulfuric acid), and ammonia. Producers watch this as a "stripping margin" or "crush spread," and it is the single most important number in the industry.[3][6]

The chemistry makes sulfur and ammonia particularly important. Mosaic states that one tonne of DAP requires approximately 1.6–1.7 tonnes of phosphate rock, 0.40 long tons of sulfur, and 0.23 tonnes of ammonia. In 2025 its North American consumed sulfur cost rose from $132 to $237 per long ton, while ammonia rose from $435 to $468 per tonne and blended-rock cost declined from $85 to $80 per tonne.[6]

The metrics that actually drive returns:

• Realized price per tonne. DAP and MAP are quoted commodities. Benchmark FOB (free-on-board) prices at U.S. Gulf/Tampa ran roughly $650–$680 per metric ton in mid-2025, while U.S. retail DAP reached about $860 per ton by late 2025 — up double digits year over year.[17][18]
• Cash cost per tonne and vertical integration. A producer that owns its rock and makes its own acid has a durable cost edge over one buying inputs on the open market. This is why owning the mine matters so much.[6]
• Capacity utilization. These are high-fixed-cost plants; margins swing hard with how full the plants run. Weather can matter — hurricanes Helene and Milton flooded central-Florida operations in late 2024 and halted production for up to two weeks.[2]
• Margin per tonne, not just volume. In a good year an integrated producer can earn a wide spread on every tonne; in a downcycle that spread compresses toward cash cost.

The result is a capital-intensive, cyclical, volatile-earnings profile. Mosaic's phosphate segment posted $4.577 billion in net sales in 2025, with gross margin of $437.3 million (9.6%, down from 13.1% in 2024). Higher finished-product prices contributed approximately $450 million, but higher sulfur and ammonia costs took approximately $285 million, higher conversion costs approximately $140 million, turnaround and reliability work approximately $60 million, and water treatment approximately $70 million.[6] Nutrien reported 2025 phosphate sales of $1.734 billion with adjusted EBITDA of $382 million.[12] Pricing is extremely cyclical: the BLS producer-price index for phosphatic fertilizer manufacturing rose from 227.6 in February 2020 to 598.5 in May 2022, fell to 407.3 in July 2023, and returned to 590.5 by June 2026 — amplitude that shows why peak earnings should not be capitalized as permanent.[19]

Investors should also price in environmental liabilities — mine reclamation and, above all, phosphogypsum stack management (Section 7) — which are permanent line items, not one-offs.

6. What drives demand

• Planted acreage and crop mix. Phosphorus demand tracks acres of phosphorus-hungry crops — corn and soybeans above all. USDA reports that phosphate accounted for an average 19% of U.S. fertilizer consumption volume from 2006 through 2023, versus 59% for nitrogen and 22% for potash. Expanded U.S. corn acreage into 2026 is a direct tailwind for phosphate volumes.[20][21][22]
• Farm income and crop prices. When grain prices and farm cash flow are strong, growers apply full rates and buy early; when margins are thin, they cut or defer fertilizer — a swing that hits producers within a season. Fertilizer is a major input cost: USDA estimates that all fertilizer represented 33–44% of corn operating costs and 34–45% of wheat operating costs from 2020 onward.[23]
• Seasonality. Demand is bimodal, concentrated in spring pre-plant and fall post-harvest application, which shapes inventory and pricing through the year. Because phosphorus can remain in soil, farmers can sometimes defer an application when prices spike, making short-run demand more elastic than the nutrient's biological necessity suggests.[17]
• Global supply, especially China. China was the swing exporter, shipping about 10 million tonnes of ammoniated phosphates in 2021; export curbs cut that to roughly 6.6 million tonnes in 2024 and to a trickle in 2025. With China, Morocco, Russia, and Saudi Arabia supplying about 80% of world DAP/MAP exports, Chinese restrictions tightened global supply and supported high prices — a benefit to U.S. producers and a cost to U.S. farmers.[24][25]
• New demand from batteries. Phosphate is a feedstock for lithium-iron-phosphate (LFP) EV batteries, a fast-growing non-fertilizer draw on the same rock and acid — part of why China is holding phosphate at home.[25]
• Global reserves. USGS estimates world phosphate-rock reserves at 74 billion tons and U.S. reserves at 1 billion tons. The investment issue is therefore less imminent geological exhaustion than the location, quality, ownership, and permitted accessibility of reserves — and the reality that U.S. ore grades are declining while low-cost capacity has recently entered in Morocco and Saudi Arabia.[2][13]

7. Regulation

The defining regulatory fact of this industry is phosphogypsum, the slightly radioactive byproduct of making phosphoric acid — roughly five tons of it per ton of acid, according to EPA industry estimates.[26] It contains naturally occurring uranium and radium (which decays to radon), so the EPA has regulated it since 1989 under the Clean Air Act (40 CFR Part 61, Subpart R), which requires disposal in engineered piles called "gyp stacks." More than a billion tons sit in some 25 stacks across Florida and dozens more in other states.[27][28]

This creates real liability and headline risk. A 2016 sinkhole at Mosaic's New Wales stack released 215 million gallons of process water toward the Floridan aquifer, and the 2021 Piney Point emergency near Tampa forced a controlled release of contaminated water. In December 2024 the EPA approved a pilot to use phosphogypsum in a road-construction project — a potential path to shrinking the stacks that remains contested by environmental groups.[27][29]

Trade policy is the other big regulatory lever, and it cuts in producers' favor — though it can shift abruptly. After a 2020 petition by Mosaic, the U.S. imposed countervailing duties in 2021 on phosphate-fertilizer imports from Morocco (OCP) and Russia (PhosAgro, EuroChem); the exact rates have moved through annual administrative reviews and litigation, and the U.S. International Trade Commission began its statutory five-year "sunset" review in 2026.[30][31] On June 29, 2026, the White House authorized an eight-month suspension of certain duties on Moroccan phosphate fertilizer, citing threats to adequate domestic supply — an action that demonstrates how quickly trade protection can reverse.[32] The duties protect domestic producers but draw sharp criticism from farm groups, who argue they raised U.S. growers' costs by billions of dollars over 2021–2025.[31]

Beyond these, producers operate under standard Clean Water Act, Clean Air Act, and state mining-reclamation permits — Florida wetlands permitting in particular can delay new mine expansions for years. Operators face wastewater standards, RCRA and CERCLA exposure, groundwater obligations, financial-assurance requirements, and decades of stack closure and monitoring. Nutrien states that the ultimate cost of resolving outstanding EPA matters and providing stack closure assurance could be material but was not reasonably quantifiable.[13]

8. Competitive dynamics and consolidation

This is a consolidated oligopoly, and it got that way on purpose. The modern structure was set when Mosaic itself was formed in 2004 (Cargill's crop-nutrition unit plus IMC Global) and reinforced by Mosaic's 2018 purchase of Vale's Brazil fertilizer assets and the 2018 PotashCorp–Agrium merger that created Nutrien. Federal concentration data — CR4 of 86% and an HHI near the "highly concentrated" line — reflect that history.[8]

Competition is on cost, not brand. DAP is DAP; the winner is the lowest-cost integrated producer with the best logistics to the farm gate. That favors incumbents who already own high-quality rock and paid-off infrastructure, and it raises a structural barrier for new entrants: greenfield mines face a decade of permitting and reclamation risk, exemplified by the Bureau of Land Management's October 2025 approval of a new Idaho mine intended merely to replace a depleting one.[2] The competitive frontier now is resource life — U.S. reserves are depleting and ore grades are falling — which pushes the majors toward foreign rock (Mosaic's Peru operation) and pulls in more imports.[2][3]

9. Risks

• Commodity-price cyclicality. Earnings can double or halve with the DAP price; this is the dominant risk for any equity holder.[3]
• Input-cost squeeze. Sulfur and ammonia (itself tied to natural gas) can spike and compress the processing spread even when fertilizer prices hold. In 2025, sulfur cost increases alone cost Mosaic approximately $285 million in margin.[3][6]
• Resource depletion. Falling Florida reserves and P₂O₅ grades raise long-run cost and increase import reliance.[2]
• Environmental and legal exposure. Phosphogypsum stacks, spills, and reclamation are open-ended liabilities with regulatory and reputational tails. The apparent asset price in any private transaction can be dwarfed by retained or transferred environmental obligations.[27][29][13]
• Trade-policy reversal. If the countervailing-duty orders are lifted in the sunset review — or suspended as occurred in June 2026 with Morocco — cheaper imports could re-enter and pressure domestic margins.[30][31][32]
• Demand shock. A collapse in grain prices or farm income can cut a whole season's application rates.[23]
• Weather and operations. Hurricanes and plant outages directly interrupt production in the Florida core. Physical risks include acidic-water releases, sinkholes, mine depletion, ore-grade changes, plant corrosion, and failures in sulfur, ammonia, rail, or port logistics.[2]
• Labor continuity. Mosaic disclosed eight U.S. and Canadian collective-bargaining agreements, with approximately 51% of the covered employees under contracts expiring during 2026. Nutrien disclosed that two of its 13 agreements were due for renegotiation in 2026 and three had expired in 2025 but remained under negotiation.[6][13]

10. How to invest and the outlook

Public routes. The cleanest listed exposure is Mosaic (MOS) — the only large U.S. pure(ish)-play, though it also mines potash. For a lower-volatility, diversified version, Nutrien (NTR) wraps phosphate inside potash, nitrogen, and a huge ag-retail arm, though phosphate is a small slice; note that Nutrien's ongoing strategic review of its phosphate business could reshape that exposure during 2026.[16] Itafos (IFOS) is a small, higher-risk single-asset operator whose Idaho mine life, permitting, ore quality, and environmental liabilities are correspondingly important to valuation, and ICL (ICL) offers foreign phosphate exposure. Note that these behave like cyclical commodity stocks — dividends and valuation multiples compress at cycle peaks and can look "cheap" exactly when earnings are about to roll over.

Private routes. Direct ownership is largely closed: the biggest non-public player, J.R. Simplot, is family-held. Private and infrastructure capital more realistically enters through mineral rights and royalties, logistics and terminals, phosphate-recycling and battery-grade purified-phosphoric-acid ventures, offtake/financing arrangements with operators like Itafos, or potentially a divestiture from Nutrien's strategic alternatives process. Any private valuation should separately model mineral reserves, sulfur and ammonia contracts, acid and granulation capacity, phosphogypsum-stack obligations, reclamation security, maintenance backlog, terminal access, and normalized mid-cycle prices.

Near-term drivers (forward-looking). The setup entering 2026 favors producers: Chinese export restrictions have kept global phosphate unusually tight, U.S. corn acreage is expanding, and retail DAP/MAP prices sit well above 2024 levels — conditions that should support domestic margins in the near term.[20][24] The counterweights are affordability stress on farmers (who have largely pre-bought 2026 needs at high prices), the pending five-year duty review that could reshape import competition, the June 2026 Morocco duty suspension that signals trade policy can shift quickly, and the slow grind of resource depletion pushing the industry toward imports and foreign rock.[22][31][32] Longer term, LFP-battery demand is a genuine new source of pull on phosphate that could tighten the fertilizer market structurally — a bullish thesis that is still early and unproven at scale.[25] Net: a cyclically strong but structurally challenged domestic industry, best owned by investors who understand they are buying a volatile commodity, not a steady compounder.

---

Sources

1. U.S. Environmental Protection Agency, "Radioactive Material From Fertilizer Production" (2024). https://www.epa.gov/radtown/radioactive-material-fertilizer-production
2. U.S. Geological Survey, "Mineral Commodity Summaries 2026: Phosphate Rock" (2026). https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf
3. CRU / BC Insight, "North America's potash and phosphate industries" (2025). https://www.bcinsight.crugroup.com/2025/03/18/north-americas-potash-and-phosphate-industries/
4. CRU / BC Insight, "North America's phosphate producers" (2020). https://www.bcinsight.crugroup.com/2020/05/31/north-americas-phosphate-producers/
5. StockAnalysis / Yahoo Finance, "Mosaic (MOS) and Nutrien (NTR) market data" (2026). https://stockanalysis.com/stocks/mos/
6. The Mosaic Company, "Form 10-K, Fiscal Year 2025" (U.S. SEC, 2026). https://www.sec.gov/Archives/edgar/data/1285785/000128578526000017/mos-20251231.htm
7. Itafos, "Company Overview" (2026). https://itafos.com/company/overview/
8. U.S. Census Bureau, "2022 Economic Census — Concentration Ratios / Product Shipments, NAICS 325312" (2022). https://www.census.gov/programs-surveys/economic-census.html
9. U.S. Census Bureau, "County Business Patterns 2023, NAICS 325312" (2023). https://www.census.gov/programs-surveys/cbp.html
10. U.S. Small Business Administration, "Table of Small Business Size Standards" (2023). https://www.sba.gov/document/support-table-size-standards
11. U.S. Geological Survey, "Mineral Commodity Summaries 2026" (2026). https://pubs.usgs.gov/periodicals/mcs2026/mcs2026.pdf
12. Nutrien Ltd., "Nutrien Reports Full Year 2025 Results" (2026). https://www.nutrien.com/news/press-releases/nutrien-reports-full-year-2025-results-and-provides-2026-guidance-1741
13. Nutrien Ltd., "2025 Annual Information Filing" (U.S. SEC, 2026). https://www.sec.gov/Archives/edgar/data/1725964/000119312526081326/d56746dex991.htm
14. NS Energy, "Itafos Conda Project, USA" (2023). https://www.nsenergybusiness.com/projects/itafos-conda-project-usa/
15. J.R. Simplot Company, "Why Simplot" (2026). https://www.simplot.com/wholesale-crop-nutrition/why-simplot
16. Nutrien Ltd., "Nutrien Reports First Quarter 2026 Results" (2026). https://www.nutrien.com/news/press-releases/nutrien-reports-first-quarter-2026-results-1746
17. S&P Global Platts, "Platts to launch regional MAP, DAP FOB US Gulf Coast assessments" (2025). https://www.spglobal.com/energy/en/pricing-benchmarks/our-methodology/subscriber-notes/071025-platts-to-launch-two-regional-map-dap-fob-us-gulf-coast-assessments-effective-aug-7
18. Agrolatam, "Fertilizer Prices Ease at Year-End, but Remain Well Above 2024 Levels" (2025). https://www.agrolatam.com/crops/fertilizer-prices-december-2025-dap-nitrogen-potash/
19. Bureau of Labor Statistics / FRED, "Producer Price Index: Phosphatic Fertilizer Manufacturing" (2026). https://fred.stlouisfed.org/data/PCU325312325312
20. American Farm Bureau Federation, "Fertilizer Outlook: Global Risks, Higher Costs, Tighter Margins" (2026). https://www.fb.org/market-intel/fertilizer-outlook-global-risks-higher-costs-tighter-margins
21. USDA Economic Research Service, "Fertilizer Use and Price" (2025). https://www.ers.usda.gov/data-products/charts-of-note/113348
22. National Corn Growers Association, "Future Fertilizer Fears: Farmers say Fertilizer Risk Intensifies in 2027" (2026). https://ncga.com/stay-informed/media/the-corn-economy/article/2026/04/future-fertilizer-fears-farmers-say-fertilizer-risk-intensifies-in-2027
23. USDA Economic Research Service, "Fertilizer Prices and Farm Costs" (2025). https://ers.usda.gov/data-products/charts-of-note/111221
24. Agri-Pulse, "Chinese phosphate exports plummet, dashing hope for price relief" (2025). https://www.agri-pulse.com/articles/22817-chinese-phosphate-exports-plummet-dashing-hope-for-price-relief
25. IFPRI, "High global phosphate prices pose potential food security risks" (2025). https://www.ifpri.org/blog/high-global-phosphate-prices-pose-potential-food-security-risks/
26. U.S. EPA, "Phosphogypsum" (2024). https://www.epa.gov/radiation/phosphogypsum
27. U.S. EPA, "TENORM: Fertilizer and Fertilizer Production Wastes" (2024). https://www.epa.gov/radiation/tenorm-fertilizer-and-fertilizer-production-wastes
28. U.S. Geological Survey, "Mineral Commodity Summaries 2025: Phosphate Rock" (2025). https://pubs.usgs.gov/periodicals/mcs2025/mcs2025-phosphate.pdf
29. Federal Register, "Notice of Approval for Other Use of Phosphogypsum" (2024). https://www.federalregister.gov/documents/2024/12/23/2024-30508/notice-of-approval-for-other-use-of-phosphogypsum
30. U.S. International Trade Commission, "Five-Year Review: Phosphate Fertilizers from Morocco and Russia" (2026). https://www.usitc.gov/fed_reg_notices/five_yearsunset_reviews/phosphate_fertilizers_morocco_and_russia_022426.htm
31. Michigan Farm News, "ITC plans full 5-year review of Morocco, Russia phosphate import duties" (2025). https://www.michiganfarmnews.com/itc-plans-full-5-year-review-of-morocco-russia-phosphate-import-duties
32. The White House, "Fact Sheet: President Donald J. Trump Declares an Emergency and Authorizes the Temporary Suspension of Certain Duties on Phosphate Fertilizer from Morocco" (2026). https://www.whitehouse.gov/fact-sheets/2026/06/fact-sheet-president-donald-j-trump-declares-an-emergency-and-authorizes-the-temporary-suspension-of-certain-duties-on-phosphate-fertilizer-from-morocco/