This is to confirm that LLP "ECOEXPERT" has been conducting chemical analysis of water samples for JSC "IGH Rus" over a long period of time. Throughout the course of fulfilling our requests, the employees of LLP "ECOEXPERT" have proven themselves to be skilled professionals with deep expertise in chemical research. LLP "ECOEXPERT" has not only a highly qualified team, but also a strong regulatory and technical foundation equipped with modern instruments, which ensures high-quality and timely delivery of services at a highly professional level.

Under Contract No. 37/19-KMC dated January 24, 2019, with LLP "ECOEXPERT", your specialists promptly and efficiently provided services for the inventory of oil-filled electrical equipment to detect the presence of polychlorinated biphenyls (PCBs) in insulating liquids used by LLP "Kazakhmys Maintenance Services."

On behalf of "Scientific Research and Engineering Center ERG" LLP, we would like to express our sincere gratitude to the specialists of the Research Department of "ECOEXPERT" LLP for carrying out the work on the topic: "Monitoring of the Impact on Soil Cover during the Application of Belite-Based Product."

In 2021–2022, specialists from "ECOEXPERT" LLP carried out a study on the processing waste "CIL Tailings of the Albion Process" and developed measures for handling this waste. Laboratory analyses were conducted to determine the composition and environmental hazard of the waste. The waste hazard index was calculated, waste coding was performed, and the requirements of the environmental legislation of the Republic of Kazakhstan regarding the handling of such waste were identified. Relevant recommendations were provided accordingly.

In 2014 and 2018, specialists from "ECOEXPERT" LLP conducted workplace certification based on working conditions at "Karatau" LLP. Measurements at the workplaces were carried out competently and strictly according to the work schedule. The results of the workplace assessments are documented in the "Workplace Certification Materials on Working Conditions", which include all measurement protocols and evaluations of the working environment.

In the fourth quarter of 2020, "KATCO" JV LLP signed a contract with your company for services related to the assessment and recording of flora and fauna at the Moiynkum deposit in the Turkestan region. In 2021, specialists from "ECOEXPERT" LLP carried out work to study the species diversity of flora and fauna within the territory of "KATCO" JV LLP for the purposes of environmental monitoring, developing proposals, and addressing tasks aimed at preserving natural ecosystems under conditions of intensive production. The work also included a comparative analysis with the results of the 2010 research report.

Throughout 2022, "ECOEXPERT" LLP conducted laboratory radiological testing of finished products for "Zhairem Mining and Processing Plant" JSC. The test protocols are used for further product certification. All work was carried out under the framework of Contract No. 3110/2022-0717 dated March 15, 2022.

"Pavlodar Petrochemical Plant" LLP has experience working with "ECOEXPERT" LLP on the development of the Environmental Impact Assessment (EIA) section for the working project titled "Replanning and Conversion of the Fire Safety and Civil Defense Facility into an Administrative and Utility Building with a First-Aid Post."

This is to confirm that "ECOEXPERT" LLP has, over the course of several years, carried out environmental monitoring of emissions and the impact of the enterprise on the environment for "Zhairema Manganese" JSC.

In 2023, environmental monitoring at the site of "Zhairem Mining and Processing Plant" JSC was conducted by the laboratory of "ECOEXPERT" LLP. This laboratory holds all the necessary permits and authorizations to provide services in this field.