<https://www.financecolombia.com/epm-governance-crisis-deepens-new-ceo-alejandro-calderon-chatet-resigns-1-week-after-being-appointed/#newsarticle>
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<https://www.financecolombia.com/epm-governance-crisis-deepens-new-ceo-alejandro-calderon-chatet-resigns-1-week-after-being-appointed/>