▪ Preparing strategic noise maps (60 provinces, 47 airports); measurement of environmental noise; creation of geodatabases; preparation of noise emission inventory (airport, road, rail, and industrial sources), simulation of noise dispersion; preparation of spatial noise database, determination of the noise exposure (number of sensitive buildings and people)▪ Preparing noise action plans (10 provinces, 7 airports); determination of noise management areas with hotspot analysis; development of noise reduction scenarios; calculation of the cost of each noise reduction scenario; selection of the optimum scenario for each noise management area, assessing the environmental noise in urban planning▪ Developing noise management systems; development of noise barrier systems; determination of the in-situ performances of the noise barriers (sound absorption, sound transmission, and sound diffraction values); determination of the sound absorption qualities for road paving materials▪ Air pollution dispersion modeling; real-time air quality measurement, analysis of the measurement data, preparation of emission inventories, evaluation and preparation of meteorological parameters, processing the raw data to prepare model input, simulation of air pollution dispersion, development of air pollution reduction scenarios, creating understandable model output▪ Receptor modeling; passive sampling, analysis of the measurement data, creating input data for receptor modeling, classification of air pollutant sources, determination of source contributions

▪ Providing the necessary coordination to supply imported and domestic technical materials, services, and general purchasing demands at the desired time, with minimum cost and maximum quality▪ Alternative supplier research▪ Providing periodic contracts with vendors, ensuring the realization controls of contract commitments▪ Auditing current and alternative suppliers, preparing annual supplier evaluation report

▪ Transferring calculated raw material requirements and planned arrival dates (according to the long-term sales plans) to the purchasing department. Daily and weekly revisions of imported and domestic raw material arrival dates and quantities according to changing needs▪ Preparing and following up the action plans for the materials with low inventory turnover by preparing the stock adequacy report monthly▪ Preparing ABC analysis for products every 3 months (according to criteria such as profitability, sales amount, payment terms, and arrival time etc.). Coordination of meeting with the necessary departments for the evaluation of the low-scored products, following up on the decisions taken▪ Sales-plan deviation, capacity utilization of production facilities, and production cost reports preparation monthly

▪ Preparation of tender files for water and wastewater treatment plant constructions by process calculations and technical drawings following the specifications, collecting proposals for the necessary equipment, and creating the project cost▪ Purchasing the necessary equipment for the projects▪ Communicating with local and foreign companies regarding project coordination ▪ Proposal preparation for industrial, domestic water, and wastewater treatment systems

▪ Selection of the most suitable product in line with the demands of the customers▪ Preparation of bids▪ Answering companies' spare parts requests