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        <ExplanationTxt>Explanation of Involvement: The Chamber of Southern Arizona offered employement to all employees of Tucson Metropolitan Chamber of Commerce.</ExplanationTxt>
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        <ExplanationTxt>On March 31, 2025, Tucson Metropolitan Chamber of Commerce and Sun Corridor Inc. combined their resources, operations, and activities through a statutory merger. The name of the surviving corporation is The Chamber of Southern Arizona, which has the same EIN as Sun Corridor Inc.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>Governing documents and Form 990 are available to the public upon request to the office.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
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          <StateAbbreviationCd>AZ</StateAbbreviationCd>
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          <CityNm>Tucson</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
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        <LegalDomicileStateCd>AZ</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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  </ReturnData>
</Return>