 The company has defied legal resolutions against its operation by arranging economically with the Mexican ecological authority, the Secretariat of the Environment and Natural Resources (Secretaría de Medio Ambiente y Recursos Naturales, Semarnat), pushing them to disregard ecological research done by some independent institutions and to instead accept most other independent as well as company-funded and government required studies.Continuous internal and external monitoring of mining activities has not produced any evidence of contamination to date.On 5 February 2007, Pro San Luis Ecológico, A.C., filed a submission before the Commission for Environmental Cooperation under Article 14(1) of the North American Agreement on Environmental Cooperation.