Compass Minerals International : Presentation

BANK of AMERICA BATTERY and STORAGE CONFERENCE

Jan. 11, 2022

FORWARD-LOOKING STATEMENTS AND OTHER DISCLAIMERS

This presentation may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements about the company's lithium resource development and fire retardant business (Fortress North America) investment, including their growth and margin potential, ability to expand its portfolio, value, ability to leverage existing production and infrastructure, enter market, lower emissions and permitting requirements; the company's strategic priorities, including its ability to build a sustainable culture, deliver on commitments and its strategic assessment; the company's ability to sustain and improve operations, including increase efficiency and lower costs at Goderich mine and Cote Blanche barge dock improvements, invest in growth, maintain financial flexibility, return capital to shareholders and balance operations with value-creating growth opportunities; growth prospects; reinvestment of capital in opportunities that increase shareholder value; ability to create value, grow, optimize, drive improvement, improve productivity, restore pond chemistry, leverage assets and identity opportunities; weather; pricing; costs; feedstock inconsistencies; margins; profitability; the company's outlook for the first half of fiscal 2022 and fiscal 2022, including its expectations regarding adjusted EBITDA, volumes, revenue, EBITDA, corporate and other expense, interest expense, depreciation, depletion and amortization, capital expenditures and tax rates; and benefits of the Goderich mine plan, including maintenance expectations, benefits of key features, increased efficiency and greater optionality. Forward-looking statements are those that predict or describe future events or trends and that do not relate solely to historical matters. We use 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. he differences could be caused by a number of factors, including without limitation (i) weather conditions, (ii) foreign exchange rates and the cost and availability of transportation for the distribution of the company's products, (iii) pressure on prices and impact from competitive products, (iv) any inability by the company to successfully implement its strategic priorities or its cost-saving or enterprise optimization initiatives, (v) the risk that the company may not realize the expected financial or other benefits from the proposed development of its lithium mineral resource or its investment in Fortress North America, (vi) the timing and the outcome of the sale process for the company's South America chemicals business, and (vii) impacts of the COVID-19 pandemic. 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 Transition Report on Form 10-KT for the transition period ended Sept. 30, 2021 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 presentation 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.

The company has completed an initial assessment to define the lithium resource at Compass Minerals' existing operations in accordance
with applicable SEC regulations, including Subpart 1300. Pursuant to Subpart 1300, mineral resources are not mineral reserves and do not
have demonstrated economic viability. The company's mineral resource estimates, including estimates of the lithium resource, are based
on many factors, including assumptions regarding extraction rates and duration of mining operations, and the quality of in-place resources.
For example, the process technology for commercial extraction of lithium from brines with low lithium and high impurity (primarily
magnesium) is still developing. Accordingly, there is no certainty that all or any part of the lithium mineral resource identified by the
company's initial assessment will be converted into an economically extractable mineral reserve.	2

ABOUT US

AN ESSENTIAL MINERALS COMPANY

UNIQUE AND SUSTAINABLE CORE BUSINESS

ADVANTAGED ASSETS

• Goderich mine: World's largest underground salt mine
• Winsford mine: U.K.'s largest dedicated rock salt mine
• Great Salt Lake sustainable solar evaporation facility: Western Hemisphere's largest production site of sulfate of potash (SOP), in operation for 50+ years near Ogden, Utah

ATTRACTIVE MARKETS

• Leading supplier of salt products in North America and the U.K.
• Protassium+® (SOP product) is market leader for high-value crops in North America

OPERATIONAL STRENGTH

• Management team has decades of experience optimizing mining and manufacturing operations
• Logistics advantage and vast salt depot network
• Strong safety culture with a focus on operating responsibly and sustainably

FINANCIAL STABILITY

• Strong cash flow from operations
• No near-term debt maturities

Compass Minerals economic moat provides for competitive advantages

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STRATEGIC PRIORITIES

BUILD SUSTAINABLE CULTURE

• Drive Zero Harm imperative for our people and environment
• Increase employee engagement and build execution muscle

DELIVER ON COMMITMENTS

• Meet then exceed customer and shareholder expectations
• Continue operational improvements at mines and facilities
• Enterprise-wideoptimization commitment

STRATEGIC ASSESSMENT

• Evaluation of core strengths and opportunities to leverage advantaged assets
• • Completed North America micronutrient sale
  • Completed sale of South America plant nutrition business; sale process for South America chemicals business ongoing
• Enhance balance sheet flexibility
• Lithium value proposition
• Strategic investment in next-generation fire retardant company

These priorities support Compass Minerals' Core Purpose to help keep people safe, feed the world and enrich lives, every day

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