Fertilizer (Mixing Only) Manufacturing — U.S. Industry Primer

NAICS 2022 code 325314

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1. Overview

This is the blending step of the fertilizer chain. Companies in NAICS (North American Industry Classification System) code 325314 buy finished fertilizer ingredients made by someone else — nitrogen, phosphate, and potash materials — and mix them into ready-to-use products. They do not manufacture the raw chemicals themselves. [1] Compost manufacturing was separated into NAICS 325315 in the 2022 revision, narrowing this code to fertilizer mixing only. [2]

Two very different businesses sit under this one code:

• Agricultural bulk blending — local plants that combine dry granular materials (urea, diammonium phosphate, potash) into custom "N-P-K" blends matched to a farmer's soil test, often sold and spread the same season. This is a low-tech, high-volume, low-margin service business.
• Consumer lawn-and-garden products — branded bagged and liquid plant food (think Miracle-Gro, Osmocote, Vigoro) sold through home-improvement and mass retail. This is a brand-driven, higher-margin, seasonal consumer business.

A mixing-only plant is principally a storage, materials-handling, and logistics asset: bins or tanks, conveyors, scales, mixers, liquid-formulation equipment, bagging lines, and truck or rail loading. Products range from standard bulk N-P-K blends to soil- or crop-specific prescriptions, micronutrient packages, lawn-and-garden plant foods, and specialty liquid formulations. Toll blenders also make products to a third party's formula and packaging specification. [3]

Why an investor cares. Blending is where a globally traded commodity (fertilizer) meets the customer. Owners don't take on the capital intensity or gas-price exposure of making ammonia; instead they earn a margin on formulating, storing, and delivering. Returns hinge on input-price cycles, spring weather, farm economics, and — on the consumer side — brand and shelf space.

Public vs. private ways in. There is no pure-play public "mixing only" company. Every public name that touches this activity is diversified: Scotts Miracle-Gro (consumer), Nutrien and The Andersons (ag retail/distribution that blend as one part of a larger business), ICL Group (specialty formulations and toll blending), and Central Garden & Pet (garden consumables). Most U.S. blending capacity actually sits inside private cooperatives and ag retailers — Helena, GROWMARK, Simplot, CHS, Wilbur-Ellis — reachable only through private markets, co-op membership, or the diversified publics. [4][5][6][7][8][9]

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2. What it is and how it's structured

In scope: establishments whose primary activity is mixing purchased ingredients into fertilizer — dry bulk blends, liquid mixes, and packaged consumer plant foods. [1]

Explicitly excluded (name the neighbors):

• 325311 — Nitrogenous Fertilizer Manufacturing. Makes the nitrogen base (ammonia, urea, ammonium nitrate) from natural gas. If a plant makes nitrogen material and blends it, it lands here, not in 325314. [1]
• 325312 — Phosphatic Fertilizer Manufacturing. Makes phosphate materials (DAP/MAP) from phosphate rock and acid. [1]
• 325315 — Compost Manufacturing. Separated from 325314 in the 2022 NAICS revision. [2]
• 325320 — Pesticide and Other Agricultural Chemical Manufacturing. Crop-protection chemistry, not plant nutrients.
• 424910 — Farm Supplies Merchant Wholesalers. Pure distribution/warehousing of fertilizer with no mixing.
• 444240 — retail nursery/garden centers, and crop production (NAICS 111) — the farm customer.

Classification note. NAICS classifies individual establishments, not whole corporate groups. One integrated fertilizer company can have upstream plants in 325311 or 325312, blending facilities in 325314, terminals or wholesalers in Sector 42, and farm-facing branches classified as retail or service establishments. [10]

Ownership mix. Fragmented and locally rooted. The federal count is 321 firms whose primary business is mixing, operating 508 employer establishments as of 2023. [11][12] Alongside them, thousands of farmer-owned cooperatives and independent ag retailers run bulk-blend plants as part of a wider agronomy business — those show up under wholesale or retail codes, not here. At the consumer end, a handful of national brands dominate the shelf.

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3. How big it is

Federal ground-truth from the 2022 Economic Census for NAICS 325314: [11]

The HHI of ~422 is far below the 1,500 threshold economists use for a competitive, unconcentrated market — this is a fragmented industry with no dominant player at the mixing step. Employment and payroll for this specific 6-digit line are not in our federal dataset, so we don't state them.

The undercount caveat (important here). That $5.5 billion is only establishments whose primary activity is mixing. It is a small slice of a much larger fertilizer economy for two reasons:

1. Most blending is done by companies classified elsewhere. Farmer co-ops and ag retailers that blend on-site are counted under wholesale (424910) or retail codes, so their mixing revenue never appears in 325314.
2. Blending is only the mixing margin. The full U.S. fertilizer market is estimated at roughly $25–31 billion a year, but most of that value is the raw nitrogen/phosphate/potash (codes 325311/325312 and imports); 325314 captures just the value added by formulating and packaging. [14]

For scale, U.S. farmers apply on the order of 12–13 million tons of nitrogen, ~4 million tons of phosphate, and ~6 million tons of potash in a typical year — the physical volume flowing through the blend-and-deliver system. [15] Combined U.S. nitrogen, phosphate, and potash consumption reached 21 million metric tons in 2013, remained near 20 million metric tons through 2020, then fell 9.4% in 2021 to 18.3 million metric tons amid energy-price increases, supply-chain disruption, and trade restrictions. From 2006 through 2023, nitrogen averaged 59% of consumption volume, potash 22%, and phosphate 19%. [16]

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4. The investable universe

No public company is a pure fertilizer blender. The closest public exposures, all diversified:

Major private / cooperative owners (where most blending capacity actually lives):

• Helena Agri-Enterprises — privately held within listed Japanese parent Marubeni. Described as the second-largest U.S. ag-input retailer, with approximately 550 locations, $6.5 billion of sales, and 6,000 employees as of September 2025. [17]
• GROWMARK and its FS member companies — cooperative crop-input distribution with local fertilizer-blending facilities. [18]
• J.R. Simplot (Simplot Grower Solutions), CHS Inc., GreenPoint AG, Wilbur-Ellis, Keystone Cooperative, Agtegra, and MFA.

The top 10 U.S. ag retailers alone booked about $14 billion of fertilizer sales in 2024; Nutrien led with $1 billion-plus. [9]

Takeaway: to own "the blending margin," a public-market investor buys a diversified proxy (SMG for consumer, NTR/ANDE for ag, ICL for specialty formulations). Direct ownership of a bulk-blend network is a private-markets or co-op-membership proposition.

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5. How the money works

The two sub-industries earn money differently.

Agricultural bulk blending (the commodity service):

• Input cost is ~most of the price. Purchased urea, DAP/MAP, and potash can run near a quarter to a third of revenue in a stripped-down blend, and total cost of goods dominates — the operator earns a spread over commodity cost plus fees for custom formulation, storage, delivery, and application. Custom blends and service (spreading) carry richer margins than plain resale. Natural gas is not generally consumed as the chemical feedstock at a mixing-only plant, but it remains an important indirect cost because it drives upstream nitrogen economics. [19]
• Import exposure. USDA reports U.S. net-import reliance of more than 90% for potash, making blenders vulnerable to international supply and trade disruptions. [20]
• Working-capital and cycle exposure. Blenders buy inventory ahead of a short spring selling window. When fertilizer prices fall between purchase and sale, they book inventory losses (and gains when prices rise) — so commodity price direction, not just level, moves earnings. The Andersons flagged both ~5% lower volumes (wet, late spring) and margin compression as normalization hit 2024. [6]
• Volume × timing. Profit is tonnage moved during a narrow weather-dependent window. A wet spring that delays field application is a direct revenue hit.

Consumer lawn-and-garden (the brand business):

• Gross margin is the scoreboard. Scotts posted a ~30.6% GAAP gross margin in FY2025, up ~670 basis points year-over-year as commodity costs eased — brands, pricing, and cost control, not tonnage, drive this line. [4]
• Seasonality is extreme. The bulk of consumer sales land in the spring lawn-and-garden season; retailer point-of-sale trends and weather in a few key weeks set the year. [4]
• Cash returns. The mature consumer leaders return cash: Scotts pays a $0.66 quarterly dividend and generated ~$274M free cash flow in FY2025 while cutting debt. [4]

Margin benchmarks (diversified comparables, not pure 325314):

• Nutrien's 2025 crop-nutrient retail gross margin: ~19.5%. [5]
• ICL's Growing Solutions segment (specialty plant nutrition): ~6.5% operating margin, ~10.3% EBITDA margin. [8]

The unifying metric across both: the spread between what you pay for nutrient inputs and what you can charge, multiplied by seasonal volume.

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6. What drives demand

• Planted acres and crop mix. Corn is the heaviest fertilizer user; more corn acres means more nitrogen and blends. Field crops are ~86% of U.S. fertilizer demand. USDA estimated U.S. farmers planted 95.3 million corn acres in 2026 (down 3% from 2025) and 85.4 million soybean acres (up 5%). [14][15][21]
• Farm income and crop prices. When grain prices are weak, farmers trim or delay applications and shop for value. USDA forecasts 2026 net farm income at $153.4 billion, down 0.7% nominally and ~2.6% after inflation from 2025, a headwind to ag-input spending partly cushioned by federal assistance payments. [22]
• Fertilizer prices themselves. High input prices can depress applied volume even as they raise revenue per ton — a double-edged driver. Recent points: DAP near $800/ton in late summer 2025 (up ~17% year-over-year); urea rising from roughly $389/ton in early 2025 toward $450+/ton into early 2026; potash near $484/ton. [19][23]
• Weather and application windows. Spring conditions dictate how much product actually goes on the ground and when.
• Precision agriculture. In 2023, autosteer was used by 52% of midsize and 70% of large-scale crop-producing farms, while 68% of large-scale crop farms used yield monitors, yield maps, or soil maps. Precision technology can reduce excess application (fewer undifferentiated tons) while increasing demand for customized formulations, data, and application services. [24]
• Consumer side: housing turnover, DIY/home-improvement traffic, and spring weather drive lawn-and-garden demand largely independent of farm economics. [4]

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7. Regulation

Fertilizer nutrients are regulated mostly at the state level — a patchwork rather than a single federal regime: [25]

• State registration and tonnage reporting. Products must be registered in each state of sale, with guaranteed-analysis labeling and tonnage/inspection-fee reporting. AAPFCO (Association of American Plant Food Control Officials) publishes harmonized model rules, but each state enforces its own. The lack of a single national product-registration regime raises compliance costs for multi-state sellers. [25]
• EPCRA reporting. On-site blending can remove the federal EPCRA retail-fertilizer exemption. EPA says fertilizer held for mixing or blending is not merely being held for sale to the ultimate customer and must be reported when applicable inventory thresholds are exceeded. [26]
• Ammonium nitrate security and safety. Because ammonium nitrate is both a fertilizer and an explosive precursor, storage and handling fall under joint EPA/OSHA/ATF guidance (tightened after the 2013 West, Texas plant explosion). [27]
• Environmental / water quality. Nutrient runoff (nitrogen, phosphorus) is a live issue under the Clean Water Act and state nutrient-management rules — Chesapeake Bay and Gulf of Mexico hypoxia programs are the flagship pressures. EPA identifies excess fertilizer as a major source of nitrogen and phosphorus pollution and points to precision agriculture and best-management practices as ways to reduce runoff. Expect steady tightening rather than a single rule. [28]
• Consumer products additionally face packaging, labeling, and (for some blends) EPA oversight where a product also makes pest-control claims (FIFRA — the Federal Insecticide, Fungicide, and Rodenticide Act).

Regulation is a compliance cost and moat, not a rate-setting regime — multi-state registration burdens favor scaled operators.

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8. Competitive dynamics and consolidation

Two different pictures at two different steps:

• Upstream production is consolidated. Among U.S. ammonia (nitrogen) plants, the top four producers held ~70% of capacity by 2023 (CF Industries ~39%, Nutrien ~16%), and plant counts have shrunk. Blenders are therefore price-takers on inputs. [29]
• Blending and retail are fragmented. The federal CR4 of 30.6% and HHI of ~422 confirm no one controls the mixing step; competition is local, and switching between a co-op and an independent is easy. [11] Nutrien is the largest single ag retailer at ~21% share, but even that leaves a long tail. [9][29]

Consolidation is happening at the retail/service layer — co-ops merging (e.g., Keystone, Agtegra), and Nutrien and large regionals rolling up independent dealers to gain purchasing scale, agronomy services, and logistics. The consumer end is effectively an oligopoly of brands (Scotts by far the largest) selling through consolidated big-box retail.

Competitive edges that matter: logistics and location (proximity to rail/river terminals and to the farm), service (soil testing, custom application), purchasing scale on commodity inputs, proprietary formulations, and — on the consumer side — brand and shelf space. A commodity blender using widely available equipment has a limited moat unless it also controls distribution, customer relationships, proprietary products, or scarce local storage.

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9. Risks

• Commodity-price whipsaw. The biggest single risk: inventory bought high and sold low compresses or erases blending margins; price direction drives earnings volatility. [6]
• Weather. A wet/late spring shrinks the application window and volumes in a single season. [6]
• Farm-economy downturn. Low crop prices and falling net farm income cut input budgets. [22]
• Input supply shocks and trade. Nitrogen tracks natural-gas costs; potash and phosphate are geographically concentrated globally (U.S. net-import reliance exceeds 90% for potash); tariffs, export curbs (e.g., Chinese urea restrictions), and geopolitics can spike costs and squeeze availability. [19][20]
• Supplier concentration. Regional blenders source large volumes from a relatively small group of upstream producers, creating dependency risk.
• Regulatory tightening on nutrient runoff, ammonium-nitrate handling, and EPCRA reporting raises compliance cost. [25][26][27][28]
• Consumer-side demand cyclicality tied to housing and discretionary DIY spending; retailer concentration pressures pricing. [4]
• Thin structural margins in ag bulk blending leave little cushion for operational missteps.

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10. How to invest and the outlook

Public routes. No pure play exists; choose the exposure you want:

• Consumer brand quality: Scotts Miracle-Gro (SMG) — margin recovery, dividend, free-cash-flow story tied to the U.S. lawn-and-garden consumer. [4]
• Ag input cycle: Nutrien (NTR) for the integrated producer-plus-retail blender, or The Andersons (ANDE) for a lighter-capital ag-supply-chain and nutrient blender. [5][6]
• Specialty formulations: ICL Group (ICL) for controlled-release, water-soluble, and toll-blending exposure within a global specialty plant-nutrition business. [8]
• Diversified garden consumables: Central Garden & Pet (CENT/CENTA), where fertilizer sits within a broader garden segment. [7]

Tickers, dividends, and valuations belong to these diversified parents, not to a standalone "mixing" pure play — size positions accordingly.

Private routes. Direct ownership of blending capacity runs through private ag retailers, farmer cooperatives (membership/patronage), and regional roll-ups — Helena, GROWMARK, Simplot, CHS, Wilbur-Ellis and peers. These are reached via private equity in ag-services, co-op membership, or acquisition of independent dealers, and they capture the on-the-ground blending margin that the publics touch only partially. [9][17][18] A buyer should separate commodity resale margin from proprietary formulation and application revenue; normalize earnings over spring and fall seasons; examine inventory accounting and replacement-cost exposure; model peak working-capital borrowing; assess supplier and customer concentration; and diligence state registrations, EPCRA reporting, ammonium-nitrate storage, and ammonia compliance.

Near-term drivers to watch (forward-looking):

• Input-price direction into the 2026 crop — projections point to firmer nitrogen (anhydrous ammonia ~$760/ton and urea ~$620/ton for the 2026 crop, up from ~$744 and ~$530), which helps or hurts blenders depending on inventory timing. [19]
• Corn acreage and grain prices, which set application volumes. [15][21]
• Farm income trajectory and federal support payments. [22]
• Global supply/trade — Chinese export policy, European gas costs, and tariffs on the nutrient supply chain. [19]
• Consumer spring season strength and retailer point-of-sale trends for the lawn-and-garden names. [4]

Bottom line: a fragmented, cyclical, low-margin service business at the ag end and a consolidated, brand-driven consumer business at the retail end — best owned through diversified public proxies or private ag-retail platforms, with the fertilizer price cycle and spring weather as the master variables.

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Sources

1. U.S. Census Bureau, 2022 NAICS Definition — 325314 Fertilizer (Mixing Only) Manufacturing, 2022. https://www.census.gov/naics/?details=325&input=325&year=2022
2. U.S. Bureau of Labor Statistics, 2022 NAICS Revision — Fertilizer (Mixing Only) Manufacturing (compost separated into 325315), 2022. https://www.bls.gov/respondents/ars/fertilizer-mixing-only-manufacturing.htm
3. ICL Group, Fertilizer Blending and Toll Blending. https://icl-growingsolutions.com/agriculture/categories/fertilizer-blending/; https://icl-growingsolutions.com/en-us/?p=125636
4. The Scotts Miracle-Gro Company, Scotts Miracle-Gro Reports Strong Fiscal 2025 Full-Year Results (net sales ~$3.4B; U.S. Consumer ~$3.0B; gross margin 30.6%; EPS; FCF; $0.66 dividend), 2025. https://www.globenewswire.com/news-release/2025/11/05/3181286/33079/en/scottsmiracle-gro-reports-strong-fiscal-2025-full-year-results-driven-by-robust-gross-margin-expansion-and-eps-growth.html
5. Nutrien Ltd., 2025 Annual Report (1,800+ retail locations; 4,200+ crop consultants; 8 formulation facilities; crop-nutrient sales $7.285B; crop-nutrient gross margin $1.424B; Retail adjusted EBITDA $1.736B), 2026. https://www.sec.gov/Archives/edgar/data/1725964/000119312526081339/d25691dex991.htm
6. The Andersons, Inc., Reports Fourth Quarter and Full Year Results (Nutrient & Industrial ~$19M pretax, ~$57M EBITDA; 2.0M tons nutrients sold; volume/margin), Feb 18, 2025. https://news.andersonsinc.com/2025-02-18-The-Andersons,-Inc-Reports-Fourth-Quarter-and-Full-Year-Results; https://news.andersonsinc.com/fact-sheet
7. Central Garden & Pet Company, Form 10-K FY2024 (Garden segment ~$1.4B sales; ~$82M operating income; fertilizer within garden consumables), 2024. https://www.sec.gov/Archives/edgar/data/887733/000088773324000029/cent-20240928.htm
8. ICL Group, Fourth Quarter and Full Year 2025 Results (Growing Solutions: $2.063B sales; $135M operating income; $213M EBITDA), 2026. https://investors.icl-group.com/reports-news-and-events/press-releases/press-releases-details/2026/ICL-Reports-Fourth-Quarter-and-Full-Year-2025-Results/default.aspx
9. CropLife, Top 10 U.S. Ag Retailers by Fertilizer Sales in 2024 (top-10 ~$14B fertilizer sales; Nutrien $1B-plus, 1,500+ outlets; Helena, GROWMARK, Simplot, CHS, Wilbur-Ellis, others), 2025. https://www.croplife.com/croplife-top-100/top-10-u-s-ag-retailers-by-fertilizer-sales/
10. U.S. Census Bureau, NAICS Sector 31–33 Manufacturing Definition. https://www.census.gov/naics/?details=31&input=31&year=2017
11. U.S. Census Bureau, 2022 Economic Census — Concentration & Receipts, NAICS 325314 (receipts $5.50B; 321 firms; CR4 30.6%; CR8 41.6%; CR20 59.0%; CR50 80.3%; HHI 421.5), 2022. https://www.census.gov/programs-surveys/economic-census.html
12. U.S. Census Bureau, County Business Patterns 2023 — NAICS 325314 (508 employer establishments), 2024. https://data.census.gov/profile/325314_-_Fertilizer_%28Mixing_Only%29_Manufacturing?codeset=naics~325314&g=010XX00US
13. U.S. Small Business Administration, Table of Small Business Size Standards (NAICS 325314 = 550 employees), 2023. https://www.sba.gov/document/support-table-size-standards
14. Mordor Intelligence, United States Fertilizers Market (market value ~$25–31B; field crops ~86% of demand), 2025. https://www.mordorintelligence.com/industry-reports/united-states-fertilizers-market
15. U.S. Department of Agriculture, Economic Research Service, Drivers of Fertilizer Markets: Supply, Demand, and Prices (U.S. nutrient application volumes), 2023. https://www.ers.usda.gov/sites/default/files/_laserfiche/publications/113324/ERR-354.pdf
16. U.S. Department of Agriculture, Economic Research Service, U.S. Fertilizer Consumption Trends (2006–2023 consumption volumes; nitrogen 59%, potash 22%, phosphate 19%), 2024. https://www.ers.usda.gov/data-products/charts-of-note/113348
17. Marubeni Corporation, Investor Presentation — Helena Agri-Enterprises (~550 locations; $6.5B sales; 6,000 employees as of September 2025), 2025. https://www.marubeni.com/en/ir/reports/ir_day/pdf/ir_day1_202509_strategy1_en.pdf
18. GROWMARK, Inc., About Us and Fertilizer Blending Operations. https://www.growmark.com/about-us; https://jobs.growmark.com/fssystem/job/Bedford-Fertilizer-Blending-Operator-GROWMARK-FS%2C-LLC-Bedford%2C-PA-PA-15522/1369481600/
19. American Farm Bureau Federation, Fertilizer Outlook: Global Risks, Higher Costs, Tighter Margins (2026-crop price projections; trade risks), 2026. https://www.fb.org/market-intel/fertilizer-outlook-global-risks-higher-costs-tighter-margins
20. U.S. Department of Agriculture, Fertilizer Transportation Dashboard (U.S. potash net-import reliance >90%), 2025. https://agtransport.usda.gov/stories/s/Fertilizer-Transportation-Dashboard/dtqv-e4ux/
21. U.S. Department of Agriculture, National Agricultural Statistics Service, Acreage (95.3M corn acres, 85.4M soybean acres for 2026), June 2026. https://www.nass.usda.gov/Newsroom/2026/06-30-2026.php
22. U.S. Department of Agriculture, Economic Research Service, Farm Sector Income Forecast (2026 net farm income $153.4B; down 0.7% nominally, ~2.6% real y/y), 2026. https://www.ers.usda.gov/topics/farm-economy/farm-sector-income-finances/farm-sector-income-forecast/
23. CME Group / DTN, Fertilizer Prices Surge Ahead of a Critical Planting Season and DTN Retail Fertilizer Trends (DAP, urea, potash spot prices 2025–2026), 2025–2026. https://www.cmegroup.com/openmarkets/agriculture/2026/Fertilizer-Prices-Surge-Ahead-of-a-Critical-Planting-Season.html; https://www.dtnpf.com/agriculture/web/ag/crops/article/2025/12/31/7-fertilizers-see-lower-prices-dap-6
24. U.S. Department of Agriculture, Economic Research Service, Precision Agriculture in the United States (autosteer and yield-map adoption rates), 2024. https://www.ers.usda.gov/data-products/charts-of-note/110550
25. Association of American Plant Food Control Officials (AAPFCO), State Fertilizer Registration and Tonnage Reporting. https://www.aapfco.org/; AgToday, US Fertilizer Regulations: FIFRA & TSCA, AAPFCO, EPA, USDA, 2025. https://agtoday.info/2025/07/01/us-fertilizer-regulations/
26. U.S. Environmental Protection Agency, EPCRA Hazardous Chemical Inventory Reporting for Agricultural Operations and Retail Fertilizer Facilities (on-site blending removes retail exemption). https://www.epa.gov/epcra/epcra-hazardous-chemical-inventory-reporting-agricultural-operations-and-retail-fertilizer
27. Occupational Safety and Health Administration, Fertilizer Industry — Storage and Use of Ammonium Nitrate and Anhydrous Ammonia (EPA/OSHA/ATF guidance). https://www.osha.gov/fertilizer-industry
28. U.S. Environmental Protection Agency, Agriculture: Nutrient Management and Fertilizer (fertilizer as N/P pollution source; precision agriculture as mitigation). https://www.epa.gov/agriculture/agriculture-nutrient-management-and-fertilizer
29. farmdoc daily (University of Illinois), Consolidation Trends in the U.S. Nitrogen Fertilizer Industry (top-4 ammonia share ~70%; CF ~39%, Nutrien ~16%; Nutrien ~21% of U.S. retail), 2026. https://farmdocdaily.illinois.edu/2026/05/consolidation-trends-in-the-us-nitrogen-fertilizer-industry.html