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David MacKay is the owner of Ozono Polaris S.A. de C.V. since January 1987, bringing extensive experience in the field. In addition to this role, David serves as treasurer for both the Association for Comprehensive Energy Psychology (ACEP) and the Asociación Hispana de EFT since 2022 and 2011, respectively. David also holds the position of president at EFT since September 2013 and functions as a Formador de Formadores de EFT. David earned a degree in Mechanical Engineering with a focus on Water Treatment from McGill University between 1969 and 1974.