<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  11.3.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 6/26/2026 6:18:30 PM-->
<!--Modified on: 6/26/2026 6:18:30 PM-->
<xsd:schema targetNamespace="http://www.compassminerals.com/20250930" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:dei="http://xbrl.sec.gov/dei/2026" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:dtr="http://www.xbrl.org/2009/dtr" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:country="http://xbrl.sec.gov/country/2026" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:attributeFormDefault="unqualified" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rxp="http://xbrl.sec.gov/rxp/2026" xmlns:cmp="http://www.compassminerals.com/20250930" xmlns:snj="http://xbrl.sec.gov/snj/2026">
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbase id="linkbaseId">
        <link:roleRef roleURI="http://xbrl.sec.gov/rxp/role/ResourcesOnly" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#ResourcesOnly" xlink:type="simple" />
        <link:roleRef roleURI="http://xbrl.sec.gov/rxp/role/SegmentsOnly" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#SegmentsOnly" xlink:type="simple" />
        <link:roleRef roleURI="http://xbrl.sec.gov/rxp/role/GovernmentsOnly" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#GovernmentsOnly" xlink:type="simple" />
        <link:roleRef roleURI="http://xbrl.sec.gov/rxp/role/ProjectsOnly" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#ProjectsOnly" xlink:type="simple" />
        <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#di" roleURI="http://xbrl.sec.gov/dei/role/document/DocumentInformation" xmlns="http://www.xbrl.org/2003/linkbase" />
        <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#ByCategory" roleURI="http://xbrl.sec.gov/rxp/role/ByCategory" xmlns="http://www.xbrl.org/2003/linkbase" />
        <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#ByProject" roleURI="http://xbrl.sec.gov/rxp/role/ByProject" xmlns="http://www.xbrl.org/2003/linkbase" />
        <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#ByGovernment" roleURI="http://xbrl.sec.gov/rxp/role/ByGovernment" xmlns="http://www.xbrl.org/2003/linkbase" />
        <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#Detail" roleURI="http://xbrl.sec.gov/rxp/role/Detail" xmlns="http://www.xbrl.org/2003/linkbase" />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" />
        <link:arcroleRef arcroleURI="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd#wider-narrower" />
        <link:definitionLink xlink:role="http://xbrl.sec.gov/rxp/role/ProjectsOnly" xlink:type="extended" xlink:title="Projects Only">
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllProjectsMember" xlink:label="rxp_AllProjectsMember" xlink:title="rxp_AllProjectsMember" />
          <link:loc xlink:type="locator" xlink:href="#cmp_CompassMineralsInternationalInc.ProjectMember" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember" xlink:title="cmp_CompassMineralsInternationalInc.ProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_CompassMineralsInternationalInc.ProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_CompassMineralsInternationalInc.ProjectMember" order="1" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_CoteBlancheIslandProjectMember" xlink:label="cmp_CoteBlancheIslandProjectMember" xlink:title="cmp_CoteBlancheIslandProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_CoteBlancheIslandProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_CoteBlancheIslandProjectMember" order="2" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_LyonsProjectMember" xlink:label="cmp_LyonsProjectMember" xlink:title="cmp_LyonsProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_LyonsProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_LyonsProjectMember" order="3" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_OgdenSopProjectMember" xlink:label="cmp_OgdenSopProjectMember" xlink:title="cmp_OgdenSopProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_OgdenSopProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_OgdenSopProjectMember" order="4" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_OgdenSolarSaltProjectMember" xlink:label="cmp_OgdenSolarSaltProjectMember" xlink:title="cmp_OgdenSolarSaltProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_OgdenSolarSaltProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_OgdenSolarSaltProjectMember" order="5" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_OgdenMagnesiumChlorideProjectMember" xlink:label="cmp_OgdenMagnesiumChlorideProjectMember" xlink:title="cmp_OgdenMagnesiumChlorideProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_OgdenMagnesiumChlorideProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_OgdenMagnesiumChlorideProjectMember" order="6" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_CompassMineralsCanadaCorp.ProjectMember" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember" xlink:title="cmp_CompassMineralsCanadaCorp.ProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_CompassMineralsCanadaCorp.ProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_CompassMineralsCanadaCorp.ProjectMember" order="7" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_AmherstProjectMember" xlink:label="cmp_AmherstProjectMember" xlink:title="cmp_AmherstProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_AmherstProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_AmherstProjectMember" order="8" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GoderichMineProjectMember" xlink:label="cmp_GoderichMineProjectMember" xlink:title="cmp_GoderichMineProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_GoderichMineProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_GoderichMineProjectMember" order="9" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GoderichPlantProjectMember" xlink:label="cmp_GoderichPlantProjectMember" xlink:title="cmp_GoderichPlantProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_GoderichPlantProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_GoderichPlantProjectMember" order="10" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_UnityProjectMember" xlink:label="cmp_UnityProjectMember" xlink:title="cmp_UnityProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_UnityProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_UnityProjectMember" order="11" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_WinsfordProjectMember" xlink:label="cmp_WinsfordProjectMember" xlink:title="cmp_WinsfordProjectMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllProjectsMember" xlink:to="cmp_WinsfordProjectMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllProjectsMember To cmp_WinsfordProjectMember" order="12" priority="0" />
        </link:definitionLink>
        <link:definitionLink xlink:role="http://xbrl.sec.gov/rxp/role/GovernmentsOnly" xlink:type="extended" xlink:title="Government Only">
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllGovernmentsMember" xlink:label="rxp_AllGovernmentsMember" xlink:title="rxp_AllGovernmentsMember" />
          <link:loc xlink:type="locator" xlink:href="#cmp_U.s.FederalGovernmentMember" xlink:label="cmp_U.s.FederalGovernmentMember" xlink:title="cmp_U.s.FederalGovernmentMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_U.s.FederalGovernmentMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_U.s.FederalGovernmentMember" order="1" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GovernmentOfCanadaMember" xlink:label="cmp_GovernmentOfCanadaMember" xlink:title="cmp_GovernmentOfCanadaMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_GovernmentOfCanadaMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_GovernmentOfCanadaMember" order="2" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GovernmentOfOntarioMember" xlink:label="cmp_GovernmentOfOntarioMember" xlink:title="cmp_GovernmentOfOntarioMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_GovernmentOfOntarioMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_GovernmentOfOntarioMember" order="3" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GovernmentOfSaskatchewanMember" xlink:label="cmp_GovernmentOfSaskatchewanMember" xlink:title="cmp_GovernmentOfSaskatchewanMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_GovernmentOfSaskatchewanMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_GovernmentOfSaskatchewanMember" order="4" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GovernmentOfQuebecMember" xlink:label="cmp_GovernmentOfQuebecMember" xlink:title="cmp_GovernmentOfQuebecMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_GovernmentOfQuebecMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_GovernmentOfQuebecMember" order="5" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_RuralMunicipalityOfRoundValleyNo.410Member" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member" xlink:title="cmp_RuralMunicipalityOfRoundValleyNo.410Member" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_RuralMunicipalityOfRoundValleyNo.410Member" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_RuralMunicipalityOfRoundValleyNo.410Member" order="6" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_TownOfGoderichMember" xlink:label="cmp_TownOfGoderichMember" xlink:title="cmp_TownOfGoderichMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_TownOfGoderichMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_TownOfGoderichMember" order="7" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_GovernmentOfUnitedKingdomMember" xlink:label="cmp_GovernmentOfUnitedKingdomMember" xlink:title="cmp_GovernmentOfUnitedKingdomMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_GovernmentOfUnitedKingdomMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_GovernmentOfUnitedKingdomMember" order="8" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_CheshireMember" xlink:label="cmp_CheshireMember" xlink:title="cmp_CheshireMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllGovernmentsMember" xlink:to="cmp_CheshireMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllGovernmentsMember To cmp_CheshireMember" order="9" priority="0" />
        </link:definitionLink>
        <link:definitionLink xlink:role="http://xbrl.sec.gov/rxp/role/SegmentsOnly" xlink:type="extended" xlink:title="Segments Only">
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllSegmentsMember" xlink:label="rxp_AllSegmentsMember" xlink:title="rxp_AllSegmentsMember" />
          <link:loc xlink:type="locator" xlink:href="#cmp_SaltAndPlantNutritionSegmentMember" xlink:label="cmp_SaltAndPlantNutritionSegmentMember" xlink:title="cmp_SaltAndPlantNutritionSegmentMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllSegmentsMember" xlink:to="cmp_SaltAndPlantNutritionSegmentMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllSegmentsMember To cmp_SaltAndPlantNutritionSegmentMember" order="1" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_SaltSegmentMember" xlink:label="cmp_SaltSegmentMember" xlink:title="cmp_SaltSegmentMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllSegmentsMember" xlink:to="cmp_SaltSegmentMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllSegmentsMember To cmp_SaltSegmentMember" order="2" priority="0" />
        </link:definitionLink>
        <link:definitionLink xlink:role="http://xbrl.sec.gov/rxp/role/ResourcesOnly" xlink:type="extended" xlink:title="Resources Only">
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllResourcesMember" xlink:label="rxp_AllResourcesMember" xlink:title="rxp_AllResourcesMember" />
          <link:loc xlink:type="locator" xlink:href="#cmp_RocksaltMember" xlink:label="cmp_RocksaltMember" xlink:title="cmp_RocksaltMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllResourcesMember" xlink:to="cmp_RocksaltMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllResourcesMember To cmp_RocksaltMember" order="1" priority="0" />
          <link:loc xlink:type="locator" xlink:href="#cmp_MechanicallyEvaporatedSaltMember" xlink:label="cmp_MechanicallyEvaporatedSaltMember" xlink:title="cmp_MechanicallyEvaporatedSaltMember" />
          <link:definitionArc xlink:type="arc" xlink:from="rxp_AllResourcesMember" xlink:to="cmp_MechanicallyEvaporatedSaltMember" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:title="definition:rxp_AllResourcesMember To cmp_MechanicallyEvaporatedSaltMember" order="2" priority="0" />
        </link:definitionLink>
        <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
          <loc xlink:type="locator" xlink:href="#cmp_CompassMineralsInternationalInc.ProjectMember" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_CompassMineralsInternationalInc.ProjectMember" xlink:to="cmp_CompassMineralsInternationalInc.ProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Compass Minerals International, Inc.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Compass Minerals International, Inc., Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Compass Minerals International, Inc.</label>
          <loc xlink:type="locator" xlink:href="#cmp_CompassMineralsCanadaCorp.ProjectMember" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_CompassMineralsCanadaCorp.ProjectMember" xlink:to="cmp_CompassMineralsCanadaCorp.ProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Compass Minerals Canada Corp.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Compass Minerals Canada Corp., Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Compass Minerals Canada Corp.</label>
          <loc xlink:type="locator" xlink:href="#cmp_GoderichMineProjectMember" xlink:label="cmp_GoderichMineProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GoderichMineProjectMember" xlink:to="cmp_GoderichMineProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GoderichMineProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Goderich Mine.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GoderichMineProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Goderich Mine, Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GoderichMineProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Goderich Mine</label>
          <loc xlink:type="locator" xlink:href="#cmp_GoderichPlantProjectMember" xlink:label="cmp_GoderichPlantProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GoderichPlantProjectMember" xlink:to="cmp_GoderichPlantProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GoderichPlantProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Goderich Plant.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GoderichPlantProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Goderich Plant, Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GoderichPlantProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Goderich Plant</label>
          <loc xlink:type="locator" xlink:href="#cmp_UnityProjectMember" xlink:label="cmp_UnityProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_UnityProjectMember" xlink:to="cmp_UnityProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_UnityProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Unity.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_UnityProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unity, Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_UnityProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unity</label>
          <loc xlink:type="locator" xlink:href="#cmp_WinsfordProjectMember" xlink:label="cmp_WinsfordProjectMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_WinsfordProjectMember" xlink:to="cmp_WinsfordProjectMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_WinsfordProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents Winsford.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_WinsfordProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Winsford, Project [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_WinsfordProjectMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Winsford</label>
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US" xlink:label="country_US" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_US" xlink:to="country_US_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_US_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">UNITED STATES</label>
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CA" xlink:label="country_CA" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CA" xlink:to="country_CA_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_CA_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CANADA</label>
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_GB" xlink:label="country_GB" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_GB" xlink:to="country_GB_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_GB_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">UNITED KINGDOM</label>
          <loc xlink:type="locator" xlink:href="#cmp_U.s.FederalGovernmentMember" xlink:label="cmp_U.s.FederalGovernmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_U.s.FederalGovernmentMember" xlink:to="cmp_U.s.FederalGovernmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_U.s.FederalGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for U.S. Federal Government.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_U.s.FederalGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">U.S. Federal Government [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_U.s.FederalGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">U.S. Federal Government</label>
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfCanadaMember" xlink:label="cmp_GovernmentOfCanadaMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GovernmentOfCanadaMember" xlink:to="cmp_GovernmentOfCanadaMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GovernmentOfCanadaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Government of Canada.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GovernmentOfCanadaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Canada [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GovernmentOfCanadaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Canada</label>
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfOntarioMember" xlink:label="cmp_GovernmentOfOntarioMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GovernmentOfOntarioMember" xlink:to="cmp_GovernmentOfOntarioMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GovernmentOfOntarioMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Government of Ontario.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GovernmentOfOntarioMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Ontario [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GovernmentOfOntarioMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Ontario</label>
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfSaskatchewanMember" xlink:label="cmp_GovernmentOfSaskatchewanMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GovernmentOfSaskatchewanMember" xlink:to="cmp_GovernmentOfSaskatchewanMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GovernmentOfSaskatchewanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Government of Saskatchewan.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GovernmentOfSaskatchewanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Saskatchewan [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GovernmentOfSaskatchewanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Saskatchewan</label>
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfQuebecMember" xlink:label="cmp_GovernmentOfQuebecMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GovernmentOfQuebecMember" xlink:to="cmp_GovernmentOfQuebecMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GovernmentOfQuebecMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Government of Quebec.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GovernmentOfQuebecMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Quebec [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GovernmentOfQuebecMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of Quebec</label>
          <loc xlink:type="locator" xlink:href="#cmp_RuralMunicipalityOfRoundValleyNo.410Member" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_RuralMunicipalityOfRoundValleyNo.410Member" xlink:to="cmp_RuralMunicipalityOfRoundValleyNo.410Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Rural Municipality of Round Valley No. 410.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rural Municipality of Round Valley No. 410 [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rural Municipality of Round Valley No. 410</label>
          <loc xlink:type="locator" xlink:href="#cmp_TownOfGoderichMember" xlink:label="cmp_TownOfGoderichMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_TownOfGoderichMember" xlink:to="cmp_TownOfGoderichMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_TownOfGoderichMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Town of Goderich.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_TownOfGoderichMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Town of Goderich [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_TownOfGoderichMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Town of Goderich</label>
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfUnitedKingdomMember" xlink:label="cmp_GovernmentOfUnitedKingdomMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_GovernmentOfUnitedKingdomMember" xlink:to="cmp_GovernmentOfUnitedKingdomMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_GovernmentOfUnitedKingdomMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Government of the United Kingdom.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_GovernmentOfUnitedKingdomMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of the United Kingdom [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_GovernmentOfUnitedKingdomMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government of the United Kingdom</label>
          <loc xlink:type="locator" xlink:href="#cmp_CheshireMember" xlink:label="cmp_CheshireMember" xmlns="http://www.xbrl.org/2003/linkbase" />
          <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cmp_CheshireMember" xlink:to="cmp_CheshireMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cmp_CheshireMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member Stands for Cheshire.</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cmp_CheshireMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cheshire [Member]</label>
          <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cmp_CheshireMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cheshire</label>
        </link:labelLink>
        <presentationLink xlink:role="http://xbrl.sec.gov/dei/role/document/DocumentInformation" xlink:type="extended" xlink:title="995200 - Document - Document Information" xmlns="http://www.xbrl.org/2003/linkbase" />
        <presentationLink xlink:role="http://xbrl.sec.gov/rxp/role/ByCategory" xlink:type="extended" xlink:title="995600 - Disclosure - Payments, by Category" xmlns="http://www.xbrl.org/2003/linkbase" />
        <presentationLink xlink:role="http://xbrl.sec.gov/rxp/role/ByProject" xlink:type="extended" xlink:title="995601 - Disclosure - Payments, by Project" xmlns="http://www.xbrl.org/2003/linkbase">
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_CompassMineralsInternationalInc.ProjectMember_639180947102818527" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_CompassMineralsCanadaCorp.ProjectMember_639180947102818527" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_GoderichMineProjectMember_639180947102818527" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_GoderichPlantProjectMember_639180947102818527" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_UnityProjectMember_639180947102818527" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllProjectsMember_639180947102818527" xlink:to="cmp_WinsfordProjectMember_639180947102818527" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllProjectsMember" xlink:label="rxp_AllProjectsMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_CompassMineralsInternationalInc.ProjectMember" xlink:label="cmp_CompassMineralsInternationalInc.ProjectMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_CompassMineralsCanadaCorp.ProjectMember" xlink:label="cmp_CompassMineralsCanadaCorp.ProjectMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GoderichMineProjectMember" xlink:label="cmp_GoderichMineProjectMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GoderichPlantProjectMember" xlink:label="cmp_GoderichPlantProjectMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_UnityProjectMember" xlink:label="cmp_UnityProjectMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_WinsfordProjectMember" xlink:label="cmp_WinsfordProjectMember_639180947102818527" />
        </presentationLink>
        <presentationLink xlink:role="http://xbrl.sec.gov/rxp/role/ByGovernment" xlink:type="extended" xlink:title="995602 - Disclosure - Payments, by Government" xmlns="http://www.xbrl.org/2003/linkbase">
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="country_AllCountriesDomain_639180947102818527" xlink:to="country_US_639180947102818527" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="country_AllCountriesDomain_639180947102818527" xlink:to="country_CA_639180947102818527" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="country_AllCountriesDomain_639180947102818527" xlink:to="country_GB_639180947102818527" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_AllCountriesDomain" xlink:label="country_AllCountriesDomain_639180947102818527" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US" xlink:label="country_US_639180947102818527" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CA" xlink:label="country_CA_639180947102818527" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_GB" xlink:label="country_GB_639180947102818527" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_U.s.FederalGovernmentMember_639180947102818527" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_GovernmentOfCanadaMember_639180947102818527" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_GovernmentOfOntarioMember_639180947102818527" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_GovernmentOfSaskatchewanMember_639180947102818527" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_GovernmentOfQuebecMember_639180947102818527" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_RuralMunicipalityOfRoundValleyNo.410Member_639180947102818527" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_TownOfGoderichMember_639180947102818527" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_GovernmentOfUnitedKingdomMember_639180947102818527" order="8" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="rxp_AllGovernmentsMember_639180947102818527" xlink:to="cmp_CheshireMember_639180947102818527" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
          <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd#rxp_AllGovernmentsMember" xlink:label="rxp_AllGovernmentsMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_U.s.FederalGovernmentMember" xlink:label="cmp_U.s.FederalGovernmentMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfCanadaMember" xlink:label="cmp_GovernmentOfCanadaMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfOntarioMember" xlink:label="cmp_GovernmentOfOntarioMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfSaskatchewanMember" xlink:label="cmp_GovernmentOfSaskatchewanMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfQuebecMember" xlink:label="cmp_GovernmentOfQuebecMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_RuralMunicipalityOfRoundValleyNo.410Member" xlink:label="cmp_RuralMunicipalityOfRoundValleyNo.410Member_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_TownOfGoderichMember" xlink:label="cmp_TownOfGoderichMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_GovernmentOfUnitedKingdomMember" xlink:label="cmp_GovernmentOfUnitedKingdomMember_639180947102818527" />
          <loc xlink:type="locator" xlink:href="#cmp_CheshireMember" xlink:label="cmp_CheshireMember_639180947102818527" />
        </presentationLink>
        <presentationLink xlink:role="http://xbrl.sec.gov/rxp/role/Detail" xlink:type="extended" xlink:title="995603 - Disclosure - Payments, Details" xmlns="http://www.xbrl.org/2003/linkbase" />
      </link:linkbase>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/rxp/2026" schemaLocation="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:import namespace="http://xbrl.sec.gov/snj/2026" schemaLocation="https://xbrl.sec.gov/snj/2026/snj-2026.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
  <xsd:element name="CompassMineralsInternationalInc.ProjectMember" id="cmp_CompassMineralsInternationalInc.ProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CoteBlancheIslandProjectMember" id="cmp_CoteBlancheIslandProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LyonsProjectMember" id="cmp_LyonsProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OgdenSopProjectMember" id="cmp_OgdenSopProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OgdenSolarSaltProjectMember" id="cmp_OgdenSolarSaltProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OgdenMagnesiumChlorideProjectMember" id="cmp_OgdenMagnesiumChlorideProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CompassMineralsCanadaCorp.ProjectMember" id="cmp_CompassMineralsCanadaCorp.ProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AmherstProjectMember" id="cmp_AmherstProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GoderichMineProjectMember" id="cmp_GoderichMineProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GoderichPlantProjectMember" id="cmp_GoderichPlantProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnityProjectMember" id="cmp_UnityProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WinsfordProjectMember" id="cmp_WinsfordProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="U.s.FederalGovernmentMember" id="cmp_U.s.FederalGovernmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GovernmentOfCanadaMember" id="cmp_GovernmentOfCanadaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GovernmentOfOntarioMember" id="cmp_GovernmentOfOntarioMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GovernmentOfSaskatchewanMember" id="cmp_GovernmentOfSaskatchewanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GovernmentOfQuebecMember" id="cmp_GovernmentOfQuebecMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RuralMunicipalityOfRoundValleyNo.410Member" id="cmp_RuralMunicipalityOfRoundValleyNo.410Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TownOfGoderichMember" id="cmp_TownOfGoderichMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GovernmentOfUnitedKingdomMember" id="cmp_GovernmentOfUnitedKingdomMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CheshireMember" id="cmp_CheshireMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SaltAndPlantNutritionSegmentMember" id="cmp_SaltAndPlantNutritionSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SaltSegmentMember" id="cmp_SaltSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RocksaltMember" id="cmp_RocksaltMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MechanicallyEvaporatedSaltMember" id="cmp_MechanicallyEvaporatedSaltMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
