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Mosaic Co

NYSE: MOS · USD

Mosaic Co (MOS) Economic Moat Analysis25

Competitive advantages, dated evidence and erosion risks.

None economic moat

Mosaic has substantial production and distribution assets, but the passages establish interchangeable commodity offerings and intense price competition rather than a durable economic moat. Claimed logistical and cost advantages lack comparative operating proof. Realized price increases largely reflect global supply conditions; in 2026 they failed to cover higher input costs, while affordability constrained demand. Potash showed greater resilience, but this does not establish a company-wide structural advantage.

Cost advantage

Existing sulfur logistics, integrated production and export infrastructure provide operating capabilities. Management claims competitive costs and sulfur access, but the supplied evidence does not demonstrate a sustained cost advantage over competitors.

Durability
Physical infrastructure is established; its relative economic advantage is unproven. Expected benefits from potash expansion are prospective.
Competitors
Comparison not established
Erosion risks
Commodity competition, sulfur shortages, production downtime and environmental obligations can offset logistical benefits. Actual 2026 input constraints and curtailments weaken the case for reliable input access.
What would invalidate the thesis
The claimed sulfur-access advantage would be further invalidated by recurring input-driven curtailments despite available competing supply. A durable cost-advantage conclusion would require sustained delivered-cost superiority across commodity cycles, which these passages do not establish.
Evidence (4) · Counterevidence (4)

Intangible assets

Existing U.S. countervailing duty orders provide a regulatory support to domestic phosphate competition. Their existence does not demonstrate durable company-specific pricing power or a moat.

Durability
The filing describes a normal minimum five-year duration with possible extensions, but active legal challenges and administrative reviews limit certainty.
Competitors
Comparison not established
Erosion risks
Orders or applicable rates can change, and protection from some imports does not prevent input inflation, domestic competition or demand destruction.
What would invalidate the thesis
Overturning the orders or materially reducing effective duties would erode this support. Demonstrated durable pricing and demand after removal would be needed to establish an advantage independent of the orders.
Evidence (3) · Counterevidence (3)

Changes since the previous analysis

  • No comparable previous version.

Evidence limitations

  • Assessment uses only supplied passages from filings dated February 27, April 16 and August 5, 2026; each date has dateKind filed. No later operating outcomes are established.
  • Competitive passages identify generic producer categories rather than named rival companies. Competitor arrays therefore remain empty. Canpotex is disclosed as an export association, not a competitor.
  • Sulfur-access and potash-cost advantages are management assertions without comparative delivered-cost data, competitor cost curves or demonstrated cycle-long superiority.
  • No customer-level retention, switching-cost, renewal or share-of-wallet data are supplied. Demand and retention assessments rely on indirect operating evidence.
  • The proxy supplies actual incentive arrangements and governance practices, but the supplied ownership passage omits holdings. Award terms do not establish subsequent vesting or realized alignment outcomes.
  • Payment-term disclosures permit a limited assessment of commercial flexibility; comprehensive sales-contract pricing and repricing provisions are absent.
  • Environmental liabilities are disclosed obligations. Antitrust allegations in the supplied catalog are unresolved and do not establish misconduct or pricing power.

Financial indicators to test against the thesis

Calculated from annual filings. Missing data remains unavailable. Detailed financial charts remain in the other topics.

Financial indicators to test against the thesis
PeriodGross marginOperating marginROICFCF margin
202125.9%20.0%12.9%7.3%
202230.1%25.0%24.0%14.1%
202316.1%9.8%7.5%7.3%
202413.6%5.6%1.6%0.4%
202515.8%6.8%2.4%-4.4%

Pricing power31

  • Pricing outcomes

    Phosphate realized prices increased in 2024–2025 and Brazilian prices rose in first-half 2026. However, potash prices fell when supply improved in 2024, and subsequent increases reflect market conditions rather than demonstrated company-specific control.

  • Customer demand

    Indirect operating evidence shows continuing demand, including approximately stable Brazilian volumes in 2025, followed by materially lower first-half 2026 volumes and affordability-driven demand weakness. Supply constraints also affected volumes, so customer attrition cannot be isolated.

  • Margin resilience

    Potash gross margin was comparatively resilient, but higher selling prices failed to absorb input inflation overall and Brazilian gross margin fell sharply. This assesses actual cost recovery rather than inferring a moat from margins.

  • Pricing freedom

    Mosaic establishes customer payment terms, but explicitly considers competitive conditions. Commodity alternatives and uncertain cost pass-through indicate constrained economic freedom; comprehensive price-setting clauses are not supplied.

Management38

  • Capital discipline

    Operating cash generation declined materially through 2025 while investing outflows remained substantial. First-half 2026 capital expenditure and financing needs, major Brazilian asset charges and an additional Carlsbad impairment indicate weak demonstrated capital outcomes, although divestitures represent corrective action.

  • Incentive alignment

    Actual arrangements include multiyear equity vesting, an earnings gate for 2025 performance awards and hedging restrictions. Alignment is mixed because partial performance-unit vesting remains possible after a 20% TSR decline. Holdings and eventual award outcomes are not supplied.

  • Execution

    Operating evidence includes a potash recovery, but extended downtime, lost supply, later curtailments and costly Brazilian closures outweigh that achievement. External sulfur conditions contributed, so the assessment does not attribute all weakness to management.

  • Governance

    Disclosed practices include separate independent chair and CEO roles, annual board evaluations and management's effective-control conclusion. A one-year-late equity-award filing is a concrete compliance weakness. These disclosures support mixed governance evidence, not exceptional oversight effectiveness.

Sources and methodology

Current publication · Updated 18/10/2026 · Version 3

AI interpretation based on checked source excerpts. Issuer assertions and evidence limitations remain explicit.

Policy quality-scores-2: six equally weighted categories. The overall score requires full coverage. Missing inputs are not zero. Qualitative grades are sourced interpretations, not probabilities. 6/6 · 18/10/2026

Moat25

Equal-weight average of four evidence-backed rubric grades (0–4), scaled to 100.

structural advantage · 1/4 · Infrastructure and regulatory support exist, but cost superiority is asserted rather than demonstrated, and readily available commodity alternatives constrain differentiation.

durability · 1/4 · Installed assets offer continuity, but no durable relative economic advantage is demonstrated. Duty challenges and actual input-driven idling expose fragility.

customer dependency · 1/4 · Customers need crop nutrients, but the supplied evidence indicates weak dependency on Mosaic specifically: commodity alternatives are readily available and affordability has reduced demand.

erosion resilience · 1/4 · Potash retained substantial gross margin, but input inflation exceeded price gains elsewhere and constrained production. These realized outcomes show weak overall protection from erosion.

Pricing power31

Equal-weight average of four evidence-backed rubric grades (0–4), scaled to 100.

realized pricing · 2/4 · Phosphate realized prices increased in 2024–2025 and Brazilian prices rose in first-half 2026. However, potash prices fell when supply improved in 2024, and subsequent increases reflect market conditions rather than demonstrated company-specific control.

retention · 1/4 · Indirect operating evidence shows continuing demand, including approximately stable Brazilian volumes in 2025, followed by materially lower first-half 2026 volumes and affordability-driven demand weakness. Supply constraints also affected volumes, so customer attrition cannot be isolated.

margin resilience · 1/4 · Potash gross margin was comparatively resilient, but higher selling prices failed to absorb input inflation overall and Brazilian gross margin fell sharply. This assesses actual cost recovery rather than inferring a moat from margins.

contractual freedom · 1/4 · Mosaic establishes customer payment terms, but explicitly considers competitive conditions. Commodity alternatives and uncertain cost pass-through indicate constrained economic freedom; comprehensive price-setting clauses are not supplied.

Predictability58

Five consecutive annual periods. Equal weights: nondeclining revenue frequency; revenue-growth volatility (5–40pp); positive FCF frequency; FCF-margin volatility (3–20pp). Stability indicator, not a growth forecast.

Nondeclining revenue years (%)
50.00
Revenue growth volatility (pp)
32.27
Positive FCF years (%)
80.00
FCF margin volatility (pp)
6.37

Financial strength17

Equal-weight grades: debt/FCF (1–8x), net debt/earnings before interest and tax (0–5x), interest service (1–12x), current ratio (0.75–2x). Earnings use reported operating income, or reported pretax profit plus reported interest expense when operating income is unavailable. Interest service uses earnings/interest expense; if unavailable, it uses reported operating cash flow/cash interest paid, without relabeling cash paid as accrued expense. Nonpositive cash flow/earnings score 0 for their service component; reported zero interest with a positive numerator scores 100. Net cash scores 100 for net leverage. Missing disclosures remain unavailable. General nonfinancial-company rubric, not a credit rating; exceptional and nonoperating gains are not normalized out. IFRS finance-cost and cash-flow classifications retain their reported scope.

debtFcfGrade
0.00
netDebtEbitGrade
0.00
interestCoverageGrade
21.83
currentRatioGrade
45.20
Net debt / operating income (x)
5.82
Interest coverage (x)
3.40
Current ratio (x)
1.32

Capital allocation63

Three-year equal-weight indicators: pretax return on average invested capital (0–25%; equity + debt − cash, each year and its prior year), share-count growth (0–5%, lower better), share-based cost/revenue (2–20%, lower better), consolidated FCF/net income (0–1x). Return uses reported operating income or, if unavailable, EBIT calculated from reported pretax profit plus reported interest expense; exceptional/nonoperating gains are not normalized out. Share-based cost uses the reported cash-flow add-back or, if absent, separately reported recognized compensation expense; the latter never becomes an FCF adjustment. Nonpositive net income scores 0 for cash conversion; absent income/FCF stays unavailable. Nonpositive invested capital has no defined return and remains unavailable. Does not establish acquisition quality or buyback timing.

3-year pre-tax operating return (%)
5.88
3-year average dilution (%)
-3.41
3-year average SBC / revenue (%)
0.26
cashConversionGrade
27.52

Management38

Equal-weight average of four evidence-backed rubric grades (0–4), scaled to 100.

capital discipline · 1/4 · Operating cash generation declined materially through 2025 while investing outflows remained substantial. First-half 2026 capital expenditure and financing needs, major Brazilian asset charges and an additional Carlsbad impairment indicate weak demonstrated capital outcomes, although divestitures represent corrective action.

incentive alignment · 2/4 · Actual arrangements include multiyear equity vesting, an earnings gate for 2025 performance awards and hedging restrictions. Alignment is mixed because partial performance-unit vesting remains possible after a 20% TSR decline. Holdings and eventual award outcomes are not supplied.

execution · 1/4 · Operating evidence includes a potash recovery, but extended downtime, lost supply, later curtailments and costly Brazilian closures outweigh that achievement. External sulfur conditions contributed, so the assessment does not attribute all weakness to management.

governance · 2/4 · Disclosed practices include separate independent chair and CEO roles, annual board evaluations and management's effective-control conclusion. A one-year-late equity-award filing is a concrete compliance weakness. These disclosures support mixed governance evidence, not exceptional oversight effectiveness.

Evidence

We believe that our investments in sulfur logistical and melting assets continue to afford us a competitive advantage compared to other producers in cost and access to sulfur.

Business—sulfur logistics competitive-advantage assertion · Filed 27/02/2026

Canpotex has substantial expertise and logistical resources for the international distribution of 15 Table of Content potash, including strategically located export assets in Portland, Oregon, St.

Competition—Canpotex logistical resources · Filed 27/02/2026

We believe that our potash cost structure is competitive in the industry and should improve as we continue to complete our potash expansion projects.

Competition—potash cost assertion and prospective expansion benefits · Filed 27/02/2026

The segment also includes our distribution business in South America, which consists of sales offices, crop nutrient blending and bagging facilities, port terminals and warehouses in Brazil and Paraguay.

Business segments—South American distribution infrastructure · Filed 05/08/2026

Most of our commodity products are readily available from a number of competitors, and price and other competition in the crop nutrient industry is intense.

Competitive risks—commodity availability and intense competition · Filed 27/02/2026

While average selling prices increased in the current year periods, compared to the prior year, the increases were more than offset by elevated input costs, particularly sulfur and ammonia, which pressured margins and limited the benefit of higher selling prices.

Operating overview—selling-price increases exceeded by input-cost increases · Filed 05/08/2026

This was primarily due to idling our Araxá and Fospar facilities in the first quarter of 2026 and lower production at our Uberaba facility due to limited sulfur availability in the current year period.

Mosaic Fertilizantes—idling and sulfur availability constraints · Filed 05/08/2026

15 Table of Contents THE MOSAIC COMPANY NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - (Continued) A reconciliation of our AROs is as follows: (in millions) June 30, 2026 December 31, 2025 AROs, beginning of period $ 2,601.9 $ 2,572.2 Liabilities incurred 9.9 22.7 Liabilities settled (108.0) (288.9) Accretion expense 66.7 129.7 Revisions in estimated cash flows 8.4 190.5 Foreign currency translation 0.8 37.8 Reclass to held for sale (64.6) (62.1) AROs, end of period 2,515.1 2,601.9 Less current portion 227.2 271.3 Non-current portion of AROs $ 2,287.9 $ 2,330.6 North America Gypstack Closure Costs A majority of our ARO relates to Gypstack Closure Costs in Florida and Louisiana.

Environmental obligations—asset retirement obligation reconciliation · Filed 05/08/2026

Department of Commerce (“DOC”) issued countervailing duty (“CVD”) orders on imports of phosphate fertilizers from Morocco and Russia, in response to petitions filed by Mosaic.

Regulatory matters—existing countervailing duty orders · Filed 05/08/2026

CVD orders normally stay in place for at least five years, with possible extensions.

Regulatory matters—normal duration of countervailing duty orders · Filed 05/08/2026

Court of Appeals for the Federal Circuit (“CAFC”) seeking to overturn the orders.

Regulatory matters—challenges seeking to overturn orders · Filed 05/08/2026

Operating results were also unfavorably impacted by decreased sales volumes, driven by affordability challenges weakening global demand.

Phosphate results—affordability weakening demand and sales volumes · Filed 05/08/2026

F- 6 Phosphate Net Sales and Gross Margin The following table summarizes the Phosphate segment’s net sales, gross margin, sales volume, selling prices and raw material prices: Years Ended December 31, 2025-2024 2024-2023 (in millions, except price per tonne or unit) 2025 2024 2023 Change Percent Change Percent Net sales: North America $ 3,933.9 $ 3,772.9 $ 3,749.8 $ 161.0 4 % $ 23.1 1 % International 642.6 745.9 974.5 (103.3) (14) % (228.6) (23) % Total 4,576.5 4,518.8 4,724.3 57.7 1 % (205.5) (4) % Cost of goods sold 4,139.2 3,924.8 4,022.2 214.4 5 % (97.4) (2) % Gross margin $ 437.3 $ 594.0 $ 702.1 $ (156.7) (26) % $ (108.1) (15) Gross margin as a percentage of net sales 9.6 % 13.1 % 14.9 % Sales volumes(a) (in thousands of metric tonnes) DAP/MAP 2,935 3,133 3,625 (198) (6) % (492) (14) % Performance and Other(b) 3,010 3,304 3,366 (294) (9) % (62) (2) % Total finished product tonnes 5,945 6,437 6,991 (492) (8) % (554) (8) % Rock(c) 1,760 1,795 1,622 (35) (2) % 173 11 % Total Phosphate Segment Tonnes(a) 7,705 8,232 8,613 (527) (6) % (381) (4) % Realized prices ($/tonne) Average finished product selling price (destination)(d) $ 667 $ 589 $ 566 $ 78 13 % $ 23 4 % DAP selling price (fob mine) $ 670 $ 585 $ 573 $ 85 15 % $ 12 2 % Average cost per unit consumed in cost of goods sold: Ammonia (metric tonne) $ 468 $ 435 $ 426 $ 33 8 % $ 9 2 % Sulfur (long ton) $ 237 $ 132 $ 181 $ 105 80 % $ (49) (27) % Blended rock (metric tonne) $ 80 $ 85 $ 75 $ (5) (6) % $ 10 13 % Production volume (in thousands of metric tonnes) - North America 6,272 6,290 6,568 (18) — % (278) (4) % (a) Includes intersegment sales volumes.

Phosphate net sales and gross margin—2023–2025 prices, volumes and costs · Filed 27/02/2026

In our Potash segment, operating results for 2024 were unfavorably impacted by lower global average selling prices, resulting from improved global supply.

2024 Potash results—lower prices following improved global supply · Filed 27/02/2026

The average finished product selling price increased $91 per tonne, to $555 per tonne for the six months ended June 30, 2026, compared to $464 per tonne in the prior year period, primarily due to the global pricing environment mentioned in the Overview.

Mosaic Fertilizantes—first-half 2026 realized selling prices · Filed 05/08/2026

The Mosaic Fertilizantes segment’s sales volume remained materially unchanged at 9.0 million tonnes for the year ended December 31, 2025, compared to the prior year period.

Mosaic Fertilizantes—2025 sales volumes · Filed 27/02/2026

The Mosaic Fertilizantes segment’s sales volume decreased to 3.1 million tonnes for the six months ended June 30, 2026, from 4.1 million tonnes in the same period a year ago, due to factors discussed in the Overview.

Mosaic Fertilizantes—first-half 2026 sales volumes · Filed 05/08/2026

Gross margin for the Potash segment decreased to $207.3 million for the three months ended June 30, 2026, from $209.4 million in the prior year period.

Potash—second-quarter 2026 gross margin comparison · Filed 05/08/2026

Gross margin for the Mosaic Fertilizantes segment decreased to $6.2 million for the three months ended June 30, 2026, from $161.7 million in the same period of the previous year.

Mosaic Fertilizantes—second-quarter 2026 gross margin comparison · Filed 05/08/2026

To the extent prepayments are not collected from customers, payment terms are established based on the type of product, distributor capabilities and competitive market conditions, and do not exceed one year.

Revenue recognition—customer payment terms and competitive conditions · Filed 27/02/2026

Because most of our products are commodities, there can be no assurance that we will be able to pass through increased costs to our customers.

Raw-material risks—uncertain ability to pass through costs · Filed 05/08/2026

Summary of Cash Flows The following table represents a comparison of the net cash provided by operating activities, net cash used in investing activities and net cash used in financing activities for calendar years 2025, 2024 and 2023: F- 16 Years Ended December 31, (in millions) 2025-2024 2024-2023 Cash Flow 2025 2024 2023 Change Percent Change Percent Net cash provided by operating activities $ 824.8 $ 1,299.2 $ 2,407.2 $ (474.4) (37) % $ (1,108.0) (46) % Net cash used in investing activities (1,309.5) (1,261.0) (1,317.2) (48.5) (4) % 56.2 4 % Net cash provided by (used in) financing activities 452.0 (131.9) (1,480.5) 583.9 443 % 1,348.6 91 % Operating Activities In 2025, net cash flow from operating activities provided us with a significant source of liquidity.

Summary of cash flows—2023–2025 operating, investing and financing cash flows · Filed 27/02/2026

We had capital expenditures of $677.1 million for the six months ended June 30, 2026, compared to $645.4 million in the prior year period.

Investing activities—first-half 2026 capital expenditures · Filed 05/08/2026

During the six months ended June 30, 2026, we received net proceeds of $442.8 million from long-term debt, $201.8 million under our inventory financing arrangement and 41 Table of Contents $60.3 million under other short-term debt arrangements.

Financing activities—first-half 2026 debt and inventory financing · Filed 05/08/2026

This decision resulted in an initial charge of approximately $442 million in the first quarter of 2026 and subsequent costs of approximately $40 million in the current quarter, primarily related to the impairment of the disposal group, write-off of other assets, termination of contracts no longer in use, idle facility costs and accelerated depreciation.

Business developments—Araxá and Patrocínio charges · Filed 05/08/2026

RSUs and TSR performance units vest with continued employment through the specified vesting and performance period, respectively, which is generally three years.

Executive compensation—RSU and performance-unit vesting periods · Filed 16/04/2026

For awards granted in 2025, TSR performance units will not be earned by NEOs if the Company does not achieve cumulative positive adjusted net earnings* over the three years completed within the performance period.

Executive compensation—earnings condition for awards granted in 2025 · Filed 16/04/2026

Conversely, if TSR has declined by 20%, then just 70% of the target number of units granted will vest.

Executive compensation—partial vesting despite negative TSR · Filed 16/04/2026

Anti-Hedging and Anti-Pledging Policy Our insider trading policy prohibits executive officers and non-employee directors from engaging in hedging or monetization transactions, such as zero cost collars and forward sales contracts which allow an individual to offset any decrease in the market value of Mosaic’s securities or limit such persons ability to profit from an increase in the market value of Mosaic’s securities.

Executive compensation—anti-hedging policy · Filed 16/04/2026

Current year operating results reflect lower sales volumes which were impacted by supply losses due to extended downtime as we focused on improving asset integrity, and lower demand in North America in the fourth quarter of 2025 compared to the prior year period.

2025 operating overview—extended downtime and lost supply · Filed 27/02/2026

Sales volumes also benefitted due to our recovery from production challenges and supply chain delays experienced in the prior year.

2025 Potash results—recovery from prior production and supply-chain challenges · Filed 27/02/2026

Bodine serving as our CEO. Our Board believes that separating these positions: •allows our independent Board Chair to focus on governance oversight and advice to management; and •allows our CEO to devote his time and efforts to the management and operation of Mosaic, including the development and implementation of our business strategies.

Corporate governance—separate independent chair and CEO roles · Filed 16/04/2026

Mosaic 24 2026 proxy Table of Contents Evaluation of Board Performance In order to continue to evaluate and improve the effectiveness of the Board, under the guidance of the Corporate Governance and Nominating Committee, our directors annually evaluate the Board’s performance, including the performance of each Board committee.

Corporate governance—annual board and committee evaluations · Filed 16/04/2026

Based solely on our review of electronic filings with the SEC of such reports and written representations from our executive officers and directors that no Form 5 is required, we believe that all such reports were submitted on a timely basis during fiscal 2025 except for one Form 4 filing reporting an annual equity award for Mr.

Delinquent Section 16(a) reports—late annual equity-award filing · Filed 16/04/2026

Russell Flugel, which was filed one year late.

Delinquent Section 16(a) reports—identified officer and one-year delay · Filed 16/04/2026

Based on their evaluation, management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2025.

Internal control report—management conclusion at December 31, 2025 · Filed 27/02/2026

Upon completion of the transaction, we received cash proceeds of approximately $2 million along with the deferred payment of $10 million and recognized an additional impairment loss of $6.2 million in the second quarter of 2026.

Business developments—completed Carlsbad sale and additional impairment · Filed 05/08/2026

Publication history

Publication history
VersionUpdatedCompetitive advantage
318/10/2026none
218/10/2026none
118/10/2026Unavailable

Sources

Research methodology and limitations · What is an economic moat?