Testing laboratory “Stewart Assay and Environmental Laboratories” is an independent analytical laboratory with more than 27 years of experience in the geochemical services market. The company was registered with the Ministry of Justice of the Kyrgyz Republic in 1996. The official opening of the laboratory was in August 1997. The main activity of the Company's laboratory is technical testing, which includes sample preparation, geochemical analysis, analysis of environmental samples and metallurgical testing. The laboratory has its own Laboratory Information Management System LIMS. The laboratory has: - Accreditation of the Kyrgyz Center of Accreditation (KCA) for compliance with the international standard ISO/IEC 17025:2017 (GOST ISO/IEC 17025:2019); - UKAS accreditation (United Kingdom Accreditation Service, Great Britain) for compliance with the international standard ISO/IEC 17020:2017. - Accreditation of the Kyrgyz Center of Accreditation (KCA) for compliance with the international standard ISO/IEC 17025:2017 (GOST ISO/IEC 17025:2019);