About Us

We are a professional multidisciplinary Environmental Consulting group with more than 15 years of experience in Latin America. We have experience providing services to industrial clients regarding environment, health and safety, social and biodiversity. We have our own ISO 17025 certified environmental laboratory, and an electronic laboratory for routine calibrations and maintenance of our equipment. With offices in Mexico, Guatemala and Chile, and the support of international partners.


Profesional Team

Our professional team is highly qualified and with international experience, to guarantee the highest quality of our services. CTA´s core team has 35 professionals and the support of more than 40 experts and professionals of several environmental, health and safety, biodiversity and social disciplines.  Following are the credentials of our technical key staff:

Dr. Adrian Juarez, Ing. Civil, Hidrólogo y Experto Ambiental
Technical Director (CEO).  Civil Engineer, masters and PhD degrees from the Hannover Universoty in Germany.  Post-doc en environmental science.   More than 20 years of experience working in Central America, Mexico, and South America for the industry.  Approved auditor by the International Cyanide Management Institute.  Experience in the implementation of IFC´s Performance Standards, and Equatorial principles. He has experience in management, handling, and execution of projects in several areas. Environment: Baseline studies (water quality, air, noise and biodiversity), impact assessment, and environmental permits, audits, and studies on metal bioaccumulation.  Evaluation of environmental managemet systems guided by ISO 14001.
Health and Safety: Measurement of components that affect occupational health. Preparation of health and mining. Occupational risk evaluations and emergency response plans.  Social: implementation of social management systems, public participation processes, socio-economical studies of communities, human development index, evaluation of corporate image, and community relations.

Lic. Felipe Ramírez, Biologist
Biodiversity and country Manager.  He has 12 years of experience, having carried out biological and environmental studies in Mexico, Central America, and Chile.  He has developed environmental studies for the mining (base and precious metals) and power generation (renewables and thermal) including projects at construction, operation, and closure.  He has designed and implemented baseline studies and monitoring of water quality and biodiversity in tropical, marine-coastal, desert, and highland environments in Latin America. He has experience in the implementation of IFC´s Performance Standards, Equatorial Principles and standardized sampling and environmental evaluation methodologies from the USEPA and ASTM.  He has participated in Environmental and Social Impact Assessment projects, for industrial clients, and in the public disclosure of projects with local communities.  He is an Auditor of the ISO 9001:2000, and has participated in the implementation of Environmental Management Systems in Guatemala and Argentina.


MSc. Ing. Marvin Rosales, Ing. Agronomist and Hidrologist
Project and country manager. Engineer in agricultural and environmental sciences, with a master degree in Business Administration and another in Geology with emphasis on water and hydrogeological resources, certified as leader auditor in ISO14000, and also ISO 9001 auditor.  He has more than 14 years of experience in the areas of: edaphology, land use, erosion, climatology, surface hydrology, hydrogeology, environmental evaluations, environmental baselines, environmental monitoring, studies preparation, a great diversity of documents and environmental permits applications before governmental agencies, environmental compliance reports.  His experience is mainly with metal mining companies (gold, silver, nickel) and power generation (hydroelectric or fossil fuels).  He has worked mainly in projects in Central America and Mexico.


Msc. Bsc. Ana Gabriela Juárez, Environmental specialist
Business development manager.  Graduated in Germany in natural resources management, with a master degree in England in water resources management. She has experience working in environmental consulting firms and environmental laboratories in Germany, England, and Guatemala for the industrial sector.  She is currently CTA´s Bussiness Development Manger for Latin America. She has more than 8 years of experience in the direction, handling, execution, analysis,and revision of quality control of baseline surveys, monitoring and analysis of environmental quality, including water quality, air, noise, flora, fauna, aquatic life, metals in animal and vegetal tissue, bioaccumulation, among others. Team manager of costumer services.


Msc. Ing. Hasan Zolata, Engineer and OHS specialist
Graduated in Italy, with a master degree in mechanical engineering and in England in thermic energy.  He is a leader auditor in ISO 17025, OSHAS 18001, and has certifications in the handling of environmental samplings, calibrations, and maintenance.  He has more than 5 years of experience leading, supervising, and working in health monitoring and occupational health (odors, gases, vapors, noise dosimetries, vibration, noise, electromagnetic fields, thermic comfort, illuminance), as well as the sampling in fixed sources.  He leads the occupational health and safety team at CTA, and supervises work in the maintenance electronic laboratory, and calibration of equipment in compliance with norms ISO 17025.




To be a leading company in the provision of environmental consulting services that satisfies the needs of our clients in the international ambit and exceeds their expectations of quality, safety, service, and cost; being able to develop a long-term relationship based on communication, commitment, cooperation and confidence.



We offer technical assistance to companies in order to make production and development compatible with conservation and environmental protection.



  • Professionalism
  • Honesty
  • Compliance
  • Quality Work
  • Spirit of Service
  • Loyalty

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