# EDGAR Filing Document

**Accession Number:** 0001227654
**File Stem:** 0001227654-25-000145
**Filing Date:** 2025-8
**Character Count:** 61982
**Document Hash:** 544b209470f1953e6aec7a062acdb25f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001227654-25-000145.hdr.sgml**: 20250811

**ACCESSION NUMBER**: 0001227654-25-000145

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20250811

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250811

**DATE AS OF CHANGE**: 20250811

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** COMPASS MINERALS INTERNATIONAL INC
- **CENTRAL INDEX KEY:** 0001227654
- **STANDARD INDUSTRIAL CLASSIFICATION:** MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 363972986
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-31921
- **FILM NUMBER:** 251202523

**BUSINESS ADDRESS:**
- **STREET 1:** 9900 W. 109TH STREET
- **STREET 2:** SUITE 100
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66210
- **BUSINESS PHONE:** 913-344-9200

**MAIL ADDRESS:**
- **STREET 1:** 9900 W. 109TH STREET
- **STREET 2:** SUITE 100
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SALT HOLDINGS CORP
- **DATE OF NAME CHANGE:** 20030416

?xml version='1.0' encoding='ASCII'? cmp-20250811

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

**FORM 8-K** 

**CURRENT REPORT**

**Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): August 11, 2025

![CMPlogo.jpg](cmp-20250811_g1.jpg)

**Compass Minerals International, Inc.** 

(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-31921** | **36-3972986** |
| (State or other jurisdiction of incorporation) | (Commission File Number) | (I.R.S. Employer <br>Identification No.) |

---

**9900 West 109**<sup>th</sup> **Street** 

**Suite 100** 

**Overland Park, KS 66210** 

(Address of principal executive offices)

**(913) 344-9200** 

(Registrant's telephone number, including area code)

**N/A**

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐**&nbsp;&nbsp;&nbsp;&nbsp;**Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐**&nbsp;&nbsp;&nbsp;&nbsp;**Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐**&nbsp;&nbsp;&nbsp;&nbsp;**Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐&nbsp;&nbsp;&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| Title of each class | Trading Symbol | Name of each exchange on which registered |
| Common stock, $0.01 par value | CMP | The New York Stock Exchange |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

☐

------

**Item 2.02 &nbsp;&nbsp;&nbsp;&nbsp;Results of Operations and Financial Condition.**

On August 11, 2025, Compass Minerals International, Inc. issued a press release regarding its fiscal 2025 third quarter financial results. A copy of the press release is attached as Exhibit 99.1.

The information contained in Item 2.02 and Exhibit 99.1 of this Current Report on Form 8-K is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

**Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) &nbsp;&nbsp;&nbsp;&nbsp;Exhibits.

---

| | |
|:---|:---|
| **Exhibit No.** | **Exhibit Description** |
| <u>[99.1](cmp-q32025earningsreleasee.htm)</u> | <u>[Press Release issued by Compass Minerals International, Inc. on August 11, 2025.](cmp-q32025earningsreleasee.htm)</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | |
|:---|:---|:---|
| | &nbsp;&nbsp;**COMPASS MINERALS INTERNATIONAL, INC.** | &nbsp;&nbsp;**COMPASS MINERALS INTERNATIONAL, INC.** |
| Date: August 11, 2025 | &nbsp;&nbsp;By: | /s/ Peter Fjellman |
|  |  | Peter Fjellman |
|  |  | Title: Chief Financial Officer |

---

## Exhibit 99.1

---

| | |
|:---|:---|
| ![cmplogoa.jpg](cmplogoa.jpg) | **Exhibit 99.1** |

---

**FOR IMMEDIATE RELEASE**

**Compass Minerals Reports Fiscal 2025 Third-Quarter Results**

OVERLAND PARK, Kan. (Aug. 11, 2025) - Compass Minerals (NYSE: CMP), a leading global provider of essential minerals, today reported fiscal 2025 third-quarter results.

Unless otherwise noted, it should be assumed that time periods referenced below are on a fiscal-year basis.

**<u>MANAGEMENT COMMENTARY</u>**

"Compass Minerals had a strong third quarter that saw year-over-year improvement on a number of performance measures," said Edward C. Dowling Jr., president and CEO. "In the Salt business, while pricing was relatively flat in both the highway deicing and C&I businesses, costs declined which allowed for adjusted EBITDA margin expansion and per-ton growth compared to the same period last year. Our ramp up of highway deicing production is underway as we prepare for the coming deicing season. North American bid season is going well and we are seeing improvements in pricing and commitment sizes compared to last year. The Plant Nutrition business is benefiting from stronger sales volumes and lower production costs, which drove improvements in segment level operating income and adjusted EBITDA. On the financial front, we took steps in the third quarter with our refinancing activities to enhance our financial flexibility. We further reduced net debt and strengthened our balance sheet with the sale of certain assets related to Fortress during the quarter. We continue to execute on our back-to-basics strategy and the results from the quarter reflect the progress we are making."

**<u>QUARTERLY HIGHLIGHTS</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Net loss of $17.0 million for the third quarter of 2025, inclusive of loss on extinguishment of debt, improved from net loss in prior year of $43.6 million;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Total company adjusted EBITDA for the third quarter of 2025 of $41.0 million, up 25% year over year;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Salt business operating earnings and adjusted EBITDA for the third quarter of 2025 increased 4% and 6%, respectively, on a per-ton basis; Salt sales volumes up 4% year over year; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Plant Nutrition sales volumes in third quarter of 2025 up 21% from comparable prior year period; realized increases in operating earnings and adjusted EBITDA on both absolute and per-ton bases.

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Compass Minerals Reports Third Quarter Earnings

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**<u>QUARTERLY FINANCIAL RESULTS</u>**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **(in millions, except per share data)** | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
| **(in millions, except per share data)** | **2025** | **2024** | **2025** | **2024** |
| ***GAAP Results:*** |  |  |  |  |
| Revenue | $214.6 | $202.9 | $1016.4 | $908.6 |
| Operating earnings (loss) | 15.9 | 5.9 | 13.3 | (87.0) |
| Net loss | (17.0) | (43.6) | (72.6) | (157.8) |
| Net loss per diluted share | (0.41) | (1.05) | (1.74) | (3.83) |
| ***Non-GAAP Results\*:*** |  |  |  |  |
| Adjusted operating earnings<sup>\*</sup> | 17.1 | 7.4 | 73.3 | 106.0 |
| Adjusted EBITDA<sup>\*</sup> | 41.0 | 32.8 | 157.2 | 190.7 |
| Adjusted net (loss) earnings<sup>\*</sup> | (15.8) | (42.1) | (13.0) | 35.2 |
| Adjusted net (loss) earnings<sup>\*</sup> per diluted share | (0.39) | (1.01) | (0.31) | 0.83 |

---

\*Non-GAAP financial measure. Reconciliations to the most directly comparable GAAP financial measure are provided in tables at the end of this press release.

**<u>SALT BUSINESS COMMENTARY</u>**

Salt revenue totaled $166.0 million and was up 3% year over year, driven by a 4% year-over-year sales volume increase, partially offset by a 1% decrease in average sales price. In the highway deicing business, year over year the company realized a 1% increase in average highway deicing selling price while sales volumes increased 5%. Consumer and Industrial (C&I) pricing decreased 1% year over year to approximately $193 per ton and sales volumes increased by 2%.

Distribution costs per ton were flat year over year, while all-in product costs (defined at the segment level as sales to external customers less distribution costs less operating earnings) per ton declined 2% from the comparable prior-year quarter.

Operating earnings for the quarter increased by&nbsp;&nbsp;&nbsp;&nbsp; 9% to $28.1 million from the prior-year period. Adjusted EBITDA increased to $45.8 million, up 10% from the prior-year period. Adjusted EBITDA per ton increased 6% to $29.66.

**<u>PLANT NUTRITION BUSINESS COMMENTARY</u>**

Plant Nutrition revenue for the quarter totaled $44.8 million, up 15% year over year on improved sales volumes. The average segment sales price for the quarter was down 5% year over year to approximately $659 per ton, reflecting supply conditions of potassium-based fertilizers globally. Per-unit distribution costs for the quarter increased 10% year over year supporting sales in markets further from the company's core western U.S. markets.

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Compass Minerals Reports Third Quarter Earnings

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Reported all-in product costs per ton decreased of 23% year over year to approximately $484 per ton.

Operating earnings in the Plant Nutrition business was $5.2 million for the quarter, compared to operating loss of $1.4 million in the prior-year quarter. Adjusted EBITDA improved to $11.4 million versus $7.2 million last year.

**<u>CASH FLOW AND FINANCIAL POSITION</u>**

Net cash provided by operating activities amounted to $204.6 million for the nine months ended June 30, 2025, compared to $27.1 million in the prior year. A significant reduction in North American salt inventory driven by stronger winter weather and strategic positioning of inventory levels was the primary contributor to the significant improvement year over year.

Net cash used in investing activities was $34.7 million for the nine months ended June 30, 2025, down from $95.0 million in the prior year principally driven by lower capital spending and proceeds from the sale of Fortress North America (Fortress) assets. Total capital spending for the nine months ended June 30, 2025 was $53.8 million. In the third quarter, the company sold certain assets and intellectual property for net proceeds of $19.6 million related to the previously announced exit of its fire retardant business.

Net cash used in financing activities was $111.5 million for the nine months ended June 30, 2025, which included net debt payments of $87.0 million. In the prior year, net cash provided by financing activities reflected net borrowings of $69.5 million. Current year results reflect the previously disclosed debt financing activities that occurred in June of 2025. Compass Minerals recognized a loss from extinguishment of debt of $7.6 million due to the redemption of a portion of the outstanding 6.75% senior unsecured notes and modifications to the company's credit agreement.

The company ended the quarter with $388.7 million of liquidity, comprised of $79.4 million in cash and cash equivalents and $309.3 million of availability under its $325 million revolving credit facility.

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Compass Minerals Reports Third Quarter Earnings

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**<u>UPDATED FISCAL 2025 OUTLOOK</u>**

The company's salt and sulfate of potash production in Canada is qualified under the United States-Mexico-Canada (USMCA) trade agreement. Accordingly, Compass Minerals' exports from Canada into the United States continue to be exempt from tariffs at this time.

---

| | |
|:---|:---|
| **Salt Segment** | **Salt Segment** |
| | **2025 Range**<sup>1</sup> |
| Highway deicing sales volumes *(thousands of tons)* | 8800 - 9000 |
| Consumer and Industrial sales volumes *(thousands of tons)* | 1900 - 2000 |
| Total salt sales volumes *(thousands of tons)* | 10700 - 11000 |
| Revenue *(in millions)* | $1000 - $1040 |
| Adj. EBITDA *(in millions)* | $220 - $229 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;Range for fiscal 2025 reflects the company's committed book of business for the period and assumes an average historical sales-to-commitment outcomes.

The company's guidance has been refined to reflect the completion of three quarters of the year.

---

| | |
|:---|:---|
| **Plant Nutrition Segment** | **Plant Nutrition Segment** |
| | **2025 Range** |
| Sales volumes *(thousands of tons)* | 320 - 325 |
| Revenue *(in millions)* | $200 - $205 |
| Adj. EBITDA *(in millions)* | $24 - $27 |

---

Guidance for the Plant Nutrition segment has been adjusted to reflect the completion of three quarters of the year. Positive production trends in 2025 have allowed the company to pursue business beyond normally serviced markets, leading to incremental sales.

---

| | |
|:---|:---|
| **Corporate** | **Corporate** |
|  | **2025 Range** |
|  | **Total**<sup>1</sup> |
| Adj. EBITDA *(in millions)* | ($59) - ($55) |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;Includes $3 to $5 million in cash expenses related to Fortress.

Guidance for Corporate includes corporate expenses in support of the company's core businesses, Fortress financial results, and the results of DeepStore, the company's records services business in the U.K. The outlook reflect previously announced actions to align the company's cost structure with current business needs. Included in the above is $7.9 million of non-cash gain related to the decline in the fair value of the Fortress contingent consideration that resulted from the winding down of the Fortress business. The company's guidance has been refined to reflect the completion of three quarters of the year.

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Compass Minerals Reports Third Quarter Earnings

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---

| | | | | |
|:---|:---|:---|:---|:---|
| **Total Compass Minerals** | **Total Compass Minerals** | **Total Compass Minerals** | **Total Compass Minerals** | **Total Compass Minerals** |
| | **2025 Adjusted EBITDA** | **2025 Adjusted EBITDA** | **2025 Adjusted EBITDA** | **2025 Adjusted EBITDA** |
| | **Salt** | **Plant Nutrition** | **Corporate**<sup>1</sup> | **Total** |
| Adj. EBITDA *(in millions)* | $220 - $229 | $24 - $27 | ($59) - ($55) | $185 - $201 |
|  | **2025 Capital Expenditures** | **2025 Capital Expenditures** | **2025 Capital Expenditures** | **2025 Capital Expenditures** |
|  |  |  |  | **Total** |
| Capital expenditures (*in millions*) |  |  |  | $75 - $85 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;Includes financial contribution from DeepStore and Fortress.

Total planned capital expenditures are unchanged from the company's previously provided guidance.

---

| | |
|:---|:---|
| **Other Assumptions** | **Other Assumptions** |
| *($ in millions)* | **2025 Range** |
| Depreciation, depletion and amortization | $105 - $115 |
| Interest expense, net | $70 - $75 |
| Effective income tax rate (excl. valuation allowance) | 13% - 18% |

---

Guidance for the 2025 effective income tax rate reflects the income mix by country with income recognized in foreign jurisdictions offset by losses recognized in the U.S.

**<u>2025/2026 NORTH AMERICAN BID SEASON</u>**

Approximately 70% of the company's North American highway deicing bidding process for the upcoming winter season has been completed. Based on bid results to date, which include regional market conditions and competitive dynamics, the company expects its average contract selling price for the coming season to be approximately 2%-4% higher than prices in fiscal 2025. Committed bid volumes are expected to be up approximately 3%-5% compared to fiscal 2025. It is important to distinguish between committed bid volumes, which are used to establish minimum and maximum service levels for certain customers, and expected sales volumes, which will be driven ultimately by winter weather activity in the coming year.

**<u>CONFERENCE CALL</u>**

Compass Minerals will discuss its results on a conference call tomorrow morning, Tuesday, Aug. 12, at 9:30 a.m. ET (8:30 a.m. CT). To access the conference call, please visit the company's website at investors.compassminerals.com or dial 800-715-9871. Callers must provide the conference ID number 7896827. Outside of the U.S. and Canada, callers may dial 646-307-1963. Replays of the call will be available on the company's website.

A supporting corporate presentation with 2025 third-quarter results is available at investors.compassminerals.com.

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Compass Minerals Reports Third Quarter Earnings

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**About Compass Minerals** 

Compass Minerals (NYSE: CMP) is a leading global provider of essential minerals focused on safely delivering where and when it matters to help solve nature's challenges for customers and communities. The company's salt products help keep roadways safe during winter weather and are used in numerous other consumer, industrial, chemical and agricultural applications. Its plant nutrition products help improve the quality and yield of crops while supporting sustainable agriculture. Compass Minerals operates 12 production and packaging facilities more than 1,800 employees throughout the U.S., Canada and the U.K. Visit <u>compassminerals.com</u> for more information about the company and its products.

---

| |
|:---|
| **Investor Contact** |
| Brent Collins |
| Vice President, Treasurer & Investor Relations |
| +1.913.344.9111 |
| InvestorRelations@compassminerals.com |

---

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Compass Minerals Reports Third Quarter Earnings

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**<u>Forward-Looking Statements and Other Disclaimers</u>** 

*This press release may contain forward-looking statements, including, without limitation, statements about the outcome of the North American bid season, including pricing and commitment sizes, the execution of back-to-basics strategy, competitive advantages, tariffs, tax rates, and the company's outlook for 2025, including its expectations regarding sales volumes, revenue, Adjusted EBITDA, depreciation, depletion, and amortization, interest expense, tax rates, and capital expenditures. Forward-looking statements are those that predict or describe future events or trends and that do not relate solely to historical matters. The company uses words such as "may," "would," "could," "should," "will," "likely," "expect," "anticipate," "believe," "intend," "plan," "forecast," "outlook," "project," "estimate" and similar expressions suggesting future outcomes or events to identify forward-looking statements or forward-looking information. These statements are based on the company's current expectations and involve risks and uncertainties that could cause the company's actual results to differ materially. The differences could be caused by a number of factors, including without limitation (i) weather conditions, (ii) inflation, the cost and availability of transportation for the distribution of the company's products and foreign exchange rates, (iii) pressure on prices and impact from competitive products, and (iv) any inability by the company to successfully implement its strategic priorities or its cost-saving or enterprise optimization initiatives. For further information on these and other risks and uncertainties that may affect the company's business, see the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of the company's Amended Annual Report on Form 10-K for the period ended Sept. 30, 2024, and its Quarterly Reports on Form 10-Q for the quarters ended Dec. 31, 2024, March 31, 2025, and June 30, 2025 filed or to be filed with the SEC, as well as the company's other SEC filings. The company undertakes no obligation to update any forward-looking statements made in this press release to reflect future events or developments, except as required by law. Because it is not possible to predict or identify all such factors, this list cannot be considered a complete set of all potential risks or uncertainties.*

**Non-GAAP Measures** 

*In addition to using U.S. generally accepted accounting principles ("GAAP") financial measures, management uses a variety of non-GAAP financial measures described below to evaluate the company's and its operating segments' performance. While the consolidated financial statements provide an understanding of the company's overall results of operations, financial condition and cash flows, management analyzes components of the consolidated financial statements to identify certain trends and evaluate specific performance areas.* 

*Management uses EBITDA, EBITDA adjusted for items which management believes are not indicative of the company's ongoing operating performance ("Adjusted EBITDA") and EBITDA margin to evaluate the operating performance of the company's core business operations because its resource allocation, financing methods and cost of capital, and income tax positions are managed at a corporate level, apart from the activities of the operating segments, and the operating facilities are located in different taxing jurisdictions, which can cause considerable variation in net earnings. Management also uses adjusted operating earnings, adjusted operating margin, adjusted net earnings, and adjusted net earnings per diluted share, which eliminate the impact of certain items that management* 

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Compass Minerals Reports Third Quarter Earnings

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*does not consider indicative of underlying operating performance. The presentation of these measures should not be construed as an inference that future results will be unaffected by unusual or non-recurring items. Management believes these non-GAAP financial measures provide management and investors with additional information that is helpful when evaluating underlying performance. EBITDA and Adjusted EBITDA exclude interest expense, income taxes and depreciation, depletion and amortization, each of which are an essential element of the company's cost structure and cannot be eliminated. In addition, Adjusted EBITDA and Adjusted EBITDA margin exclude certain cash and non-cash items, including stock-based compensation, impairment charges and certain restructuring charges. Consequently, any measure that excludes these elements has material limitations. The non-GAAP financial measures used by management should not be considered in isolation or as a substitute for net earnings, operating earnings, cash flows or other financial data prepared in accordance with GAAP or as a measure of overall profitability or liquidity. These measures are not necessarily comparable to similarly titled measures of other companies due to potential inconsistencies in the method of calculation. The calculation of non-GAAP financial measures as used by management is set forth in the following tables. All margin numbers are defined as the relevant measure divided by sales. The company does not provide a reconciliation of forward-looking non-GAAP financial measures to the most directly comparable financial measures calculated and reported in accordance with GAAP, as the company is unable to estimate significant non-recurring, unusual items and/or distinct non-core initiatives without unreasonable effort. The amounts and timing of these items are uncertain and could be material to the company's results.*

*Adjusted operating earnings, adjusted operating margin, adjusted net earnings (loss), and adjusted net earnings (loss) per diluted share are presented as supplemental measures of the company's performance. Management believes these measures provide management and investors with additional information that is helpful when evaluating underlying performance and comparing results on a year-over-year normalized basis. These measures eliminate the impact of certain items that management does not consider indicative of underlying operating performance. These adjustments are itemized below. Adjusted net earnings (loss) per diluted share is adjusted net earnings (loss) divided by weighted average diluted shares outstanding. You are encouraged to evaluate the adjustments itemized above and the reasons management considers them appropriate for supplemental analysis. In evaluating these measures you should be aware that in the future the company may incur expenses that are the same as or similar to some of the adjustments presented below.* 

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Compass Minerals Reports Third Quarter Earnings

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) |
| **Item Description** | **Segment** | **Line Item** | **Amount** | **Tax Effect**<sup>(1)</sup> | **After Tax** | **EPS Impact** |
| Product recall costs | Salt | Product cost and Other operating expense | $0.2 | $— | $0.2 | $— |
| Restructuring charges<sup>(2)</sup> | Corporate and Other | Other operating expense | 0.3 |  | 0.3 |  |
| Impairments | Corporate and Other | Loss on impairments, net | 0.7 |  | 0.7 | 0.02 |
| Total |  |  | $1.2 | $— | $1.2 | $0.02 |

---

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Three Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) |
| **Item Description** | **Segment** | **Line Item** | **Amount** | **Tax Effect**<sup>(1)</sup> | **After Tax** | **EPS Impact** |
| Restructuring charges<sup>(2)</sup> | Corporate and Other | Other operating income | $1.5 | $— | $1.5 | $0.04 |
| Total |  |  | $1.5 | $— | $1.5 | $0.04 |

---

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2025**<br>(unaudited, in millions, except per share data) |
| **Item Description** | **Segment** | **Line Item** | **Amount** | **Tax Effect**<sup>(1)</sup> | **After Tax** | **EPS Impact** |
| Product recall costs | Salt | Product cost and Other operating income | $2.0 | $(0.4) | $1.6 | $0.03 |
| Restructuring charges<sup>(2)</sup> | Salt | Other operating income | 0.3 |  | 0.3 | 0.01 |
| Restructuring charges<sup>(2)</sup> | Corporate and Other | Other operating income | 4.0 |  | 4.0 | 0.09 |
| Impairments | Corporate and Other | Loss on impairments, net | 53.7 |  | 53.7 | 1.30 |
| Total |  |  | $60.0 | $(0.4) | $59.6 | $1.43 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) | **Special Items Impacting the Nine Months Ended June 30, 2024**<br>(unaudited, in millions, except per share data) |
| **Item Description** | **Segment** | **Line Item** | **Amount** | **Tax Effect**<sup>(1)</sup> | **After Tax** | **EPS Impact** |
| Restructuring charges<sup>(2)</sup> | Corporate and Other | Other operating income | $15.1 | $— | $15.1 | $0.37 |
| Restructuring charges<sup>(2)</sup> | Salt | Other operating income | 0.4 |  | 0.4 | 0.01 |
| Restructuring charges<sup>(2)</sup> | Plant Nutrition | Other operating income | 1.7 |  | 1.7 | 0.03 |
| Impairments | Corporate and Other | COGS and Loss on impairments, net | 124.8 |  | 124.8 | 3.02 |
| Goodwill impairment | Plant Nutrition | Loss on impairments, net | 51.0 |  | 51.0 | 1.23 |
| Total |  |  | $193.0 | $— | $193.0 | $4.66 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;There were no substantial income tax benefits related to these items given the U.S. valuation allowances on deferred tax assets. Applicable product recall costs reflect an impact from Canadian taxes.

(2)&nbsp;&nbsp;&nbsp;&nbsp;Restructuring charges do not include certain reductions in stock-based compensation associated with forfeitures stemming from the restructuring activities.

------

Compass Minerals Reports Third Quarter Earnings

Page 10 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Adjusted Operating Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Operating Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Operating Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Operating Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Operating Earnings**<br>(unaudited, in millions) |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Operating income (loss) | $15.9 | $5.9 | $13.3 | $(87.0) |
| Product recall costs<sup>(1)</sup> | 0.2 |  | 2.0 |  |
| Restructuring charges<sup>(2)</sup> | 0.3 | 1.5 | 4.3 | 17.2 |
| Loss on impairments, net<sup>(3)</sup> | 0.7 |  | 53.7 | 175.8 |
| Adjusted operating earnings | $17.1 | $7.4 | $73.3 | $106.0 |
| Sales | 214.6 | 202.9 | 1016.4 | 908.6 |
| Operating margin | 7.4% | 2.9% | 1.3% | (9.6)% |
| Adjusted operating margin | 8.0% | 3.6% | 7.2% | 11.7% |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized costs related to a recall of food-grade salt produced at its Goderich plant.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to reductions in workforce, changes to executive leadership and additional restructuring costs related to the exit of the Fortress fire retardant business during the three and nine months ended June 30, 2025. The company also incurred severance and related charges for the three and nine months ended June 30, 2024, due to reductions in workforce and changes to executive leadership and additional restructuring costs for the termination of our lithium development project.

(3)&nbsp;&nbsp;&nbsp;&nbsp;For the three and nine months ended June 30, 2025, the company recognized impairments of intangible assets related to the exit of the Fortress fire retardant business. For the nine months ended June 30, 2024, the company recognized impairments of long-lived assets related to the termination of the lithium development project; Fortress goodwill, intangible assets and inventory; and Plant Nutrition goodwill.

------

Compass Minerals Reports Third Quarter Earnings

Page 11 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Adjusted Net Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Net Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Net Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Net Earnings**<br>(unaudited, in millions) | **Reconciliation for Adjusted Net Earnings**<br>(unaudited, in millions) |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Net loss | $(17.0) | $(43.6) | $(72.6) | $(157.8) |
| Product recall costs<sup>(1)</sup> | 0.2 |  | 2.0 |  |
| Restructuring charges<sup>(2)</sup> | 0.3 | 1.5 | 4.3 | 17.2 |
| Loss on impairments, net<sup>(3)</sup> | 0.7 |  | 53.7 | 173.4 |
| Loss on inventory impairment<sup>(3)</sup> |  |  |  | 2.4 |
| Income tax effect |  |  | $(0.4) |  |
| Adjusted net earnings | $(15.8) | $(42.1) | $(13.0) | $35.2 |
| Net loss per diluted share | $(0.41) | $(1.05) | $(1.74) | $(3.83) |
| Adjusted net earnings per diluted share | $(0.39) | $(1.01) | $(0.31) | $0.83 |
| Weighted-average common shares outstanding (in thousands): |  |  |  |  |
| Diluted | 41859 | 41342 | 41738 | 41284 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized costs related to a recall of food-grade salt produced at its Goderich plant. Charges for the three and nine months ended June 30, 2025 were $0.2 million ($0.2 million net of tax) and $2.0 million ($1.6 million net of tax), respectively.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to reductions in workforce, changes to executive leadership and additional restructuring costs related to the exit of the Fortress fire retardant business during the three and nine months ended June 30, 2025. The company also incurred severance and related charges for the three and nine months ended June 30, 2024, due to reductions in workforce and changes to executive leadership and additional restructuring costs for the termination of our lithium development project.

(3)&nbsp;&nbsp;&nbsp;&nbsp;For the three and nine months ended June 30, 2025, the company recognized impairments of intangible assets related to the exit of the Fortress fire retardant business. For the nine months ended June 30, 2024, the company recognized impairments of long-lived assets related to the termination of the lithium development project; Fortress goodwill, intangible assets and inventory; and Plant Nutrition goodwill.

------

Compass Minerals Reports Third Quarter Earnings

Page 12 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for EBITDA and Adjusted EBITDA**<br>*(unaudited, in millions)* | **Reconciliation for EBITDA and Adjusted EBITDA**<br>*(unaudited, in millions)* | **Reconciliation for EBITDA and Adjusted EBITDA**<br>*(unaudited, in millions)* | **Reconciliation for EBITDA and Adjusted EBITDA**<br>*(unaudited, in millions)* | **Reconciliation for EBITDA and Adjusted EBITDA**<br>*(unaudited, in millions)* |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Net loss | $(17.0) | $(43.6) | $(72.6) | $(157.8) |
| Interest expense | 16.3 | 17.2 | 51.2 | 50.4 |
| Income tax expense | 3.4 | 32.7 | 22.9 | 20.4 |
| Depreciation, depletion and amortization | 23.2 | 26.1 | 76.5 | 78.4 |
| EBITDA | 25.9 | 32.4 | 78.0 | (8.6) |
| Adjustments to EBITDA: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Stock-based compensation - non-cash | 0.6 | (0.7) | 7.3 | 6.3 |
| &nbsp;&nbsp;&nbsp;Interest income | (0.3) | (0.2) | (0.9) | (0.8) |
| &nbsp;&nbsp;Loss (gain) on foreign exchange | 8.4 | (0.5) | 3.1 | (1.1) |
| &nbsp;&nbsp;&nbsp;Loss on extinguishment of debt | 7.6 |  | 7.6 |  |
| &nbsp;&nbsp;Product recall costs<sup>(1)</sup> | 0.3 |  | 2.1 |  |
| &nbsp;&nbsp;Restructuring charges<sup>(2)</sup> | 0.3 | 1.5 | 4.3 | 17.2 |
| &nbsp;&nbsp;Loss on impairments, net<sup>(3)</sup> | 0.7 |  | 53.7 | 175.8 |
| &nbsp;&nbsp;Other (income) expense, net | (2.5) | 0.3 | 2.0 | 1.9 |
| Adjusted EBITDA | $41.0 | $32.8 | $157.2 | $190.7 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized costs related to a recall of food-grade salt produced at its Goderich plant.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to reductions in workforce, changes to executive leadership and additional restructuring costs related to the exit of the Fortress fire retardant business during the three and nine months ended June 30, 2025. The company also incurred severance and related charges for the three and nine months ended June 30, 2024, due to reductions in workforce and changes to executive leadership and additional restructuring costs for the termination of our lithium development project.

(3)&nbsp;&nbsp;&nbsp;&nbsp;For the three and nine months ended June 30, 2025, the company recognized impairments of intangible assets related to the exit of the Fortress fire retardant business. For the nine months ended June 30, 2024, the company recognized impairments of long-lived assets related to the termination of the lithium development project; Fortress goodwill, intangible assets and inventory; and Plant Nutrition goodwill.

------

Compass Minerals Reports Third Quarter Earnings

Page 13 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Salt Segment Performance**<br>*(unaudited, in millions, except for sales volumes and prices per short ton)* | **Salt Segment Performance**<br>*(unaudited, in millions, except for sales volumes and prices per short ton)* | **Salt Segment Performance**<br>*(unaudited, in millions, except for sales volumes and prices per short ton)* | **Salt Segment Performance**<br>*(unaudited, in millions, except for sales volumes and prices per short ton)* | **Salt Segment Performance**<br>*(unaudited, in millions, except for sales volumes and prices per short ton)* |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Sales | $166.0 | $160.6 | $840.9 | $745.3 |
| Operating earnings | $28.1 | $25.9 | $124.4 | $142.6 |
| Operating margin | 16.9% | 16.1% | 14.8% | 19.1% |
| Adjusted operating earnings<sup>(1)</sup> | $28.3 | $25.9 | $126.7 | $143.0 |
| Adjusted operating margin<sup>(1)</sup> | 17.0% | 16.1% | 15.1% | 19.2% |
| EBITDA<sup>(1)</sup>  | $45.6 | $41.6 | $176.8 | $189.7 |
| EBITDA<sup>(1)</sup> margin  | 27.5% | 25.9% | 21.0% | 25.5% |
| Adjusted EBITDA<sup>(1)</sup> | $45.8 | $41.6 | $179.1 | $190.1 |
| Adjusted EBITDA<sup>(1)</sup> margin | 27.6% | 25.9% | 21.3% | 25.5% |
| Sales volumes (in thousands of tons): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Highway deicing | 1144 | 1090 | 7714 | 6401 |
| &nbsp;&nbsp;&nbsp;Consumer and industrial | 400 | 393 | 1428 | 1403 |
| Total Salt | 1544 | 1483 | 9142 | 7804 |
| Average prices (per ton): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Highway deicing | $77.63 | $77.20 | $71.52 | $73.60 |
| &nbsp;&nbsp;&nbsp;Consumer and industrial | $193.26 | $194.35 | $202.60 | $195.37 |
| Total Salt | $107.54 | $108.27 | $91.99 | $95.50 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;Non-GAAP financial measure. Reconciliations follow in these tables.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Salt Segment Adjusted Operating Earnings**<br>*(unaudited, in millions)* | **Reconciliation for Salt Segment Adjusted Operating Earnings**<br>*(unaudited, in millions)* | **Reconciliation for Salt Segment Adjusted Operating Earnings**<br>*(unaudited, in millions)* | **Reconciliation for Salt Segment Adjusted Operating Earnings**<br>*(unaudited, in millions)* | **Reconciliation for Salt Segment Adjusted Operating Earnings**<br>*(unaudited, in millions)* |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Reported GAAP segment operating earnings | $28.1 | $25.9 | $124.4 | $142.6 |
| &nbsp;&nbsp;Restructuring charges<sup>(1)</sup> |  |  | 0.3 | 0.4 |
| &nbsp;&nbsp;Product recall costs<sup>(2)</sup> | 0.2 |  | 2.0 |  |
| Segment adjusted operating earnings | $28.3 | $25.9 | $126.7 | $143.0 |
| Segment sales | 166.0 | 160.6 | 840.9 | 745.3 |
| Segment operating margin | 16.9% | 16.1% | 14.8% | 19.1% |
| Segment adjusted operating margin | 17.0% | 16.1% | 15.1% | 19.2% |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to a reduction of its workforce.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred costs related to a product recall of food-grade salt produced at its Goderich plant.

------

Compass Minerals Reports Third Quarter Earnings

Page 14 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Salt Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Salt Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Salt Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Salt Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Salt Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Reported GAAP segment operating earnings | $28.1 | $25.9 | $124.4 | $142.6 |
| Depreciation, depletion and amortization | 17.5 | 15.7 | 52.4 | 47.1 |
| Segment EBITDA | $45.6 | $41.6 | $176.8 | $189.7 |
| &nbsp;&nbsp;Restructuring charges<sup>(1)</sup> |  |  | 0.3 | 0.4 |
| &nbsp;&nbsp;Product recall costs<sup>(2)</sup> | 0.2 |  | 2.0 |  |
| Segment adjusted EBITDA | $45.8 | $41.6 | $179.1 | $190.1 |
| Segment sales | 166.0 | 160.6 | 840.9 | 745.3 |
| Segment EBITDA margin | 27.5% | 25.9% | 21.0% | 25.5% |
| Segment adjusted EBITDA margin | 27.6% | 25.9% | 21.3% | 25.5% |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to a reduction of its workforce.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred costs related to a product recall of food-grade salt produced at its Goderich plant.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Plant Nutrition Segment Performance**<br>*(unaudited, dollars in millions, except for sales volumes and prices per short ton)* | **Plant Nutrition Segment Performance**<br>*(unaudited, dollars in millions, except for sales volumes and prices per short ton)* | **Plant Nutrition Segment Performance**<br>*(unaudited, dollars in millions, except for sales volumes and prices per short ton)* | **Plant Nutrition Segment Performance**<br>*(unaudited, dollars in millions, except for sales volumes and prices per short ton)* | **Plant Nutrition Segment Performance**<br>*(unaudited, dollars in millions, except for sales volumes and prices per short ton)* |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Sales | $44.8 | $38.8 | $164.5 | $138.6 |
| Operating earnings (loss) | $5.2 | $(1.4) | $0.3 | $(56.7) |
| Operating margin | 11.6% | (3.6)% | 0.2% | (40.9)% |
| Adjusted operating earnings (loss)<sup>(1)</sup> | $5.2 | $(1.4) | $0.3 | $(4.0) |
| Adjusted operating margin<sup>(1)</sup> | 11.6% | (3.6)% | 0.2% | (2.9)% |
| EBITDA<sup>(1)</sup>  | $11.4 | $7.2 | $21.4 | $(31.0) |
| EBITDA<sup>(1)</sup> margin  | 25.4% | 18.6% | 13.0% | (22.4)% |
| Adjusted EBITDA<sup>(1)</sup>  | $11.4 | $7.2 | $21.4 | $21.7 |
| Adjusted EBITDA<sup>(1)</sup> margin  | 25.4% | 18.6% | 13.0% | 15.7% |
| Sales volumes (in thousands of tons) | 68 | 56 | 263 | 205 |
| Average price (per ton) | $658.79 | $691.27 | $625.28 | $676.11 |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;Non-GAAP financial measure. Reconciliations follow in these tables.

------

Compass Minerals Reports Third Quarter Earnings

Page 15 of 20

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Plant Nutrition Segment Adjusted Operating Earnings (Loss)**<br>*(unaudited, in millions)* | **Reconciliation for Plant Nutrition Segment Adjusted Operating Earnings (Loss)**<br>*(unaudited, in millions)* | **Reconciliation for Plant Nutrition Segment Adjusted Operating Earnings (Loss)**<br>*(unaudited, in millions)* | **Reconciliation for Plant Nutrition Segment Adjusted Operating Earnings (Loss)**<br>*(unaudited, in millions)* | **Reconciliation for Plant Nutrition Segment Adjusted Operating Earnings (Loss)**<br>*(unaudited, in millions)* |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Reported GAAP segment operating earnings (loss) | $5.2 | $(1.4) | $0.3 | $(56.7) |
| &nbsp;&nbsp;Restructuring charges<sup>(1)</sup> |  |  |  | 1.7 |
| &nbsp;&nbsp;Loss on goodwill impairment<sup>(2)</sup> |  |  |  | 51.0 |
| Segment adjusted operating earnings (loss) | $5.2 | $(1.4) | $0.3 | $(4.0) |
| Segment sales | 44.8 | 38.8 | 164.5 | 138.6 |
| Segment operating margin | 11.6% | (3.6)% | 0.2% | (40.9)% |
| Segment adjusted operating margin | 11.6% | (3.6)% | 0.2% | (2.9)% |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to a reduction of its workforce.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized a goodwill impairment during the nine months ended June 30, 2024.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Reconciliation for Plant Nutrition Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Plant Nutrition Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Plant Nutrition Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Plant Nutrition Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) | **Reconciliation for Plant Nutrition Segment EBITDA and Adjusted EBITDA**<br>(*unaudited, in millions*) |
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
| Reported GAAP segment operating earnings (loss) | $5.2 | $(1.4) | $0.3 | $(56.7) |
| Depreciation, depletion and amortization | 6.2 | 8.6 | 21.1 | 25.7 |
| Segment EBITDA | $11.4 | $7.2 | $21.4 | $(31.0) |
| &nbsp;&nbsp;Restructuring charges<sup>(1)</sup> |  |  |  | 1.7 |
| &nbsp;&nbsp;Loss on goodwill impairment<sup>(2)</sup> |  |  |  | 51.0 |
| Segment adjusted EBITDA | $11.4 | $7.2 | $21.4 | $21.7 |
| Segment sales | 44.8 | 38.8 | 164.5 | 138.6 |
| Segment EBITDA margin | 25.4% | 18.6% | 13.0% | (22.4)% |
| Segment adjusted EBITDA margin | 25.4% | 18.6% | 13.0% | 15.7% |

---

(1)&nbsp;&nbsp;&nbsp;&nbsp;The company incurred severance and related charges due to a reduction of its workforce.

(2)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized a goodwill impairment during the nine months ended June 30, 2024.

------

Compass Minerals Reports Third Quarter Earnings

Page 16 of 20

**GAAP** 

**COMPASS MINERALS INTERNATIONAL, INC.**

**CONSOLIDATED STATEMENTS OF OPERATIONS**

***(unaudited, in millions, except share and per-share data)***

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three Months Ended<br>June 30,** | **Three Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** | **Nine Months Ended<br>June 30,** |
| | **2025** | **2024** | **2025** | **2024** |
| Sales | $214.6 | $202.9 | $1016.4 | $908.6 |
| Shipping and handling cost | 56.7 | 53.2 | 288.7 | 255.1 |
| Product cost | 116.7 | 117.1 | 575.4 | 478.0 |
| &nbsp;&nbsp;&nbsp;Gross profit | 41.2 | 32.6 | 152.3 | 175.5 |
| Selling, general and administrative expenses | 24.0 | 27.5 | 86.9 | 106.5 |
| Loss on impairments, net | 0.7 |  | 53.7 | 173.4 |
| Other operating expense (income) | 0.6 | (0.8) | (1.6) | (17.4) |
| &nbsp;&nbsp;&nbsp;Operating income (loss) | 15.9 | 5.9 | 13.3 | (87.0) |
| Other (income) expense: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Interest income | (0.3) | (0.2) | (0.9) | (0.8) |
| &nbsp;&nbsp;&nbsp;Interest expense | 16.3 | 17.2 | 51.2 | 50.4 |
| &nbsp;&nbsp;&nbsp;Loss (gain) on foreign exchange | 8.4 | (0.5) | 3.1 | (1.1) |
| &nbsp;&nbsp;&nbsp;Loss on extinguishment of debt | 7.6 |  | 7.6 |  |
| &nbsp;&nbsp;&nbsp;Other (income) expense, net | (2.5) | 0.3 | 2.0 | 1.9 |
| Loss before income taxes | (13.6) | (10.9) | (49.7) | (137.4) |
| Income tax expense | 3.4 | 32.7 | 22.9 | 20.4 |
| Net loss | $(17.0) | $(43.6) | $(72.6) | $(157.8) |
| Basic net loss per common share | $(0.41) | $(1.05) | $(1.74) | $(3.83) |
| Diluted net loss per common share | $(0.41) | $(1.05) | $(1.74) | $(3.83) |
| Weighted-average common shares outstanding (in thousands): |  |  |  |  |
| Basic | 41859 | 41342 | 41738 | 41284 |
| Diluted | 41859 | 41342 | 41738 | 41284 |

---

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Compass Minerals Reports Third Quarter Earnings

Page 17 of 20

**COMPASS MINERALS INTERNATIONAL, INC.**

**CONDENSED CONSOLIDATED BALANCE SHEETS**

***(unaudited, in millions)***

---

| | | |
|:---|:---|:---|
| | **June 30,**<br>**2025** | **Sept. 30,**<br>**2024** |
| **ASSETS** | **ASSETS** | **ASSETS** |
| Cash and cash equivalents | $79.4 | $20.2 |
| Receivables, net | 202.1 | 126.1 |
| Inventories, net | 264.7 | 414.1 |
| Other current assets | 24.4 | 26.9 |
| Property, plant and equipment, net | 773.8 | 806.5 |
| Intangible and other noncurrent assets | 193.0 | 246.3 |
| Total assets | $1537.4 | $1640.1 |
| **LIABILITIES AND STOCKHOLDERS' EQUITY** | **LIABILITIES AND STOCKHOLDERS' EQUITY** | **LIABILITIES AND STOCKHOLDERS' EQUITY** |
| Current portion of long-term debt | $— | $7.5 |
| Current portion of finance lease liabilities | 7.2 | 5.2 |
| Other current liabilities | 257.9 | 204.3 |
| Long-term debt, net of current portion | 825.3 | 910.0 |
| Finance lease liabilities, net of current portion | 8.1 | 11.2 |
| Deferred income taxes and other noncurrent liabilities | 189.1 | 185.3 |
| Total stockholders' equity | 249.8 | 316.6 |
| Total liabilities and stockholders' equity | $1537.4 | $1640.1 |

---

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Compass Minerals Reports Third Quarter Earnings

Page 18 of 20

---

| | | |
|:---|:---|:---|
| **COMPASS MINERALS INTERNATIONAL, INC.** | **COMPASS MINERALS INTERNATIONAL, INC.** | **COMPASS MINERALS INTERNATIONAL, INC.** |
| **CONSOLIDATED STATEMENTS OF CASH FLOWS** | **CONSOLIDATED STATEMENTS OF CASH FLOWS** | **CONSOLIDATED STATEMENTS OF CASH FLOWS** |
| ***(unaudited, in millions)*** | ***(unaudited, in millions)*** | ***(unaudited, in millions)*** |
| | **Nine Months Ended June 30,** | **Nine Months Ended June 30,** |
| | **2025** | **2024** |
| Cash flows from operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;Net loss | $(72.6) | $(157.8) |
| &nbsp;&nbsp;&nbsp;Adjustments to reconcile net loss to net cash flows provided by operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation, depletion and amortization | 76.5 | 78.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization of deferred financing costs | 3.5 | 1.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-cash portion of stock-based compensation | 7.3 | 6.3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | (0.5) | 1.2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized foreign exchange loss (gain) | 1.0 | (0.5) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loss on impairments, net | 53.7 | 173.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net gain from remeasurement of contingent consideration | (7.9) | (23.1) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loss on extinguishment of debt | 7.6 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of Fortress assets | (2.4) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | 1.3 | 2.6 |
| &nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Receivables | 14.2 | 36.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | 138.0 | (9.9) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | 1.4 | (2.0) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable and accrued expenses and other current liabilities | (27.4) | (69.4) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other liabilities | 10.9 | (10.8) |
| Net cash provided by operating activities | 204.6 | 27.1 |
| Cash flows from investing activities: |  |  |
| &nbsp;&nbsp;&nbsp;Capital expenditures | (53.8) | (93.3) |
| &nbsp;&nbsp;&nbsp;Proceeds from sale of Fortress assets, net of transaction costs | 19.6 |  |
| &nbsp;&nbsp;&nbsp;Other, net | (0.5) | (1.7) |
| Net cash used in investing activities | (34.7) | (95.0) |
| Cash flows from financing activities: |  |  |
| &nbsp;&nbsp;&nbsp;Borrowings under revolving credit facility | 244.3 | 359.6 |
| &nbsp;&nbsp;&nbsp;Repayments under revolving credit facility | (434.4) | (289.2) |
| &nbsp;&nbsp;&nbsp;Proceeds from issuance of long-term debt | 62.1 | 69.4 |
| &nbsp;&nbsp;&nbsp;Principal payments on long-term debt | (63.8) | (70.3) |
| &nbsp;&nbsp;&nbsp;Principal payments to pay down term loan | (191.3) |  |
| &nbsp;&nbsp;&nbsp;Proceeds from 2030 Notes | 650.0 |  |
| &nbsp;&nbsp;&nbsp;Repurchase of 2027 Notes | (350.0) |  |
| &nbsp;&nbsp;&nbsp;Premium paid to extinguish 2027 Notes | (3.9) |  |
| &nbsp;&nbsp;&nbsp;Payments for contingent consideration |  | (9.1) |
| &nbsp;&nbsp;&nbsp;Dividends paid |  | (12.7) |
| &nbsp;&nbsp;&nbsp;Payment of deferred financing costs | (15.5) | (2.1) |
| &nbsp;&nbsp;&nbsp;Shares withheld to satisfy employee tax obligations | (1.3) | (2.0) |
| &nbsp;&nbsp;&nbsp;Other, net | (7.7) | (1.4) |
| Net cash (used in) provided by financing activities | (111.5) | 42.2 |
| Effect of exchange rate changes on cash and cash equivalents | 0.8 | (0.2) |
| Net change in cash and cash equivalents | 59.2 | (25.9) |
| Cash and cash equivalents, beginning of the year | 20.2 | 38.7 |
| **Cash and cash equivalents, end of period** | $79.4 | $12.8 |

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Compass Minerals Reports Third Quarter Earnings

Page 19 of 20

**COMPASS MINERALS INTERNATIONAL, INC.**

**SEGMENT INFORMATION**

***(unaudited, in millions)***

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| | | | | |
|:---|:---|:---|:---|:---|
| **Three Months Ended June 30, 2025** | **Salt** | **Plant<br>Nutrition** | **Corporate<br>& Other**<sup>(1)</sup> | **Total** |
| Sales to external customers | $166.0 | $44.8 | $3.8 | $214.6 |
| Intersegment sales |  | 3.2 | (3.2) |  |
| Shipping and handling cost | 50.0 | 6.7 |  | 56.7 |
| Operating earnings (loss)<sup>(2)(3)(4)</sup> | 28.1 | 5.2 | (17.4) | 15.9 |
| Depreciation, depletion and amortization | 17.5 | 6.2 | (0.5) | 23.2 |
| Total assets (as of end of period) | 1032.1 | 354.0 | 151.3 | 1537.4 |

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| | | | | |
|:---|:---|:---|:---|:---|
| **Three Months Ended June 30, 2024** | **Salt** | **Plant<br>Nutrition** | **Corporate<br>& Other**<sup>(1)</sup> | **Total** |
| Sales to external customers | $160.6 | $38.8 | $3.5 | $202.9 |
| Intersegment sales |  | 2.8 | (2.8) |  |
| Shipping and handling cost | 48.2 | 5.0 |  | 53.2 |
| Operating earnings (loss)<sup>(2)(3)(4)</sup> | 25.9 | (1.4) | (18.6) | 5.9 |
| Depreciation, depletion and amortization | 15.7 | 8.6 | 1.8 | 26.1 |
| Total assets (as of end of period) | 1013.3 | 408.1 | 173.8 | 1595.2 |

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| | | | | |
|:---|:---|:---|:---|:---|
| **Nine Months Ended June 30, 2025** | **Salt** | **Plant<br>Nutrition** | **Corporate<br>& Other**<sup>(1)</sup> | **Total** |
| Sales to external customers | $840.9 | $164.5 | $11.0 | $1016.4 |
| Intersegment sales |  | 8.7 | (8.7) |  |
| Shipping and handling cost | 263.2 | 25.5 |  | 288.7 |
| Operating earnings (loss)<sup>(2)(3)(4)</sup> | 124.4 | 0.3 | (111.4) | 13.3 |
| Depreciation, depletion and amortization | 52.4 | 21.1 | 3.0 | 76.5 |

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Compass Minerals Reports Third Quarter Earnings

Page 20 of 20

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| | | | | |
|:---|:---|:---|:---|:---|
| **Nine Months Ended June 30, 2024** | **Salt** | **Plant<br>Nutrition** | **Corporate<br>& Other**<sup>(1)</sup> | **Total** |
| Sales to external customers | $745.3 | $138.6 | $24.7 | $908.6 |
| Intersegment sales |  | 6.6 | (6.6) |  |
| Shipping and handling cost | 235.9 | 18.6 | 0.6 | 255.1 |
| Operating earnings (loss)<sup>(2)(3)(4)</sup> | 142.6 | (56.7) | (172.9) | (87.0) |
| Depreciation, depletion and amortization | 47.1 | 25.7 | 5.6 | 78.4 |

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(1)&nbsp;&nbsp;&nbsp;&nbsp;Corporate and other includes corporate entities, records management operations, the Fortress fire retardant business, equity method investments and other incidental operations and eliminations. Operating earnings (loss) for corporate and other includes indirect corporate overhead, including costs for general corporate governance and oversight, as well as costs for the human resources, information technology, legal and finance functions.

(2)&nbsp;&nbsp;&nbsp;&nbsp;Corporate operating results were impacted by costs related to a product recall of $0.2 million and $2.0 million for the three and nine months ended June 30, 2025, respectively. Corporate operating results were also impacted by declines in the valuation of the Fortress contingent consideration. The company recognized net gains of $7.9 million for the nine months ended June 30, 2025, and $0.9 million and $23.1 million for the three and nine months ended June 30, 2024, respectively, related to the Fortress contingent consideration valuation.

(3)&nbsp;&nbsp;&nbsp;&nbsp;The company recognized impairment of $0.7 million and $53.7 million related to the exit of the Fortress fire retardant business for both the three and nine months ended June 30, 2025, which impacted operating results. The company also recognized impairments of $175.8 million related to the impairment of Plant Nutrition goodwill, Fortress assets and goodwill and lithium development assets for the nine months ended June 30, 2024, which impacted operating results.

(4)&nbsp;&nbsp;&nbsp;&nbsp;The company continued to take steps to align its cost structure to its current business needs. These initiatives impacted Corporate operating results and resulted in net severance and related charges, excluding stock-based compensation forfeitures, for reductions in workforce and changes to executive leadership and additional restructuring costs related to the exit of the Fortress fire retardant business of $0.3 million and $4.3 million for the three and nine months ended June 30, 2025, respectively. The company also recognized severance and related charges, excluding stock-based compensation forfeitures, related to the termination of the company's lithium development project of $1.5 million and $17.2 million for the three and nine months ended June 30, 2024, respectively.

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