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Ecopetrol S.A.https://pcaobus.org/form-ap-filings/25222/25222Ecopetrol S.A.252225/16/2018 10:09:21 AM2017fcc7ea72-f43b-44c9-8793-6b24134646021522Ernst & Young Audit S.A.S.433446Ecopetrol S.A.1444406EC; ECP.0152253012Daniel Alejandro Tortorella0152253012True