MINISTRY OF THE ENVIRONMENT (2020) Certification of the Registry of Environmental Service Providers to the consulting firm ALTOL S.R.L. MINISTRY OF THE ENVIRONMENT (2020) Certification of the Registry of Environmental Service Providers to the consulting firm ALCHEM. MINISTRY OF ENVIRONMENT (2018) Approval of the Use of Methodology and Procedures for Particulate Matter Monitoring. MINISTRY OF THE ENVIRONMENT (2014) Certification of Noise, Particulate Matter and Emissions Monitoring Procedures [...].

MINISTRY OF LABOR (2019) Certification of Compliance with Regulation 522-06 on Occupational Safety and Health.