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      <link:roleType id="AccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.coremt.com/role/AccumulatedOtherComprehensiveIncomeTables">
        <link:definition>2345311 - Disclosure - Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossDetails" roleURI="http://www.coremt.com/role/AccumulatedOtherComprehensiveIncomeLossDetails">
        <link:definition>2446419 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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