Company Profile Beijing China Sciences Runyu Environmental Technology Co., Ltd. (CSET) is an environmental protection industrial platform driven by technological innovation and serves the national ecological and environmental protection strategy of "green development". With its scientific and technological resources and years of experience in industrializing scientific and technological achievements, CSET is committed to providing the best available technology (BAT) and best environmental practices (BEP) for sustainable environmental development and becoming an outstanding enterprise that promotes environmental changes with technologies. The Company took the lead in establishing an circular economy industrial park model that is centered on the WTE incineration project and completed by the treatment of kitchen waste, sludge, medical waste and other wastes. By using the "CHP" model to supply heat to surrounding industrial enterprises, we were among the first to demonstrate how to change the basic technology used by incineration power plants from the circulating fluidized bed to grate the furnace and achieve production expansion without stopping production. CSET actively seeks business expansion and continues to optimize its business structure. As the basis of the WTE incineration business, we are actively engaged in the treatment and disposal of hazardous industrial waste and the recycling of agricultural and forestry waste, all the while taking into account the coordinated development of the sales and technical services of environmental protection equipment. On July 8, 2022, CSET was officially listed on the Shenzhen Stock Exchange's ChiNext board with the stock code 301175.

Industrial solid hazardous waste Zhongke Environmental Protection has accumulated technical and operational experience in incineration and pollution control based on the long-term continuous cultivation of domestic waste treatment business. By establishing Zhongke Huazhi to create a professional management platform for hazardous waste treatment and disposal, it has effectively expanded the comprehensive hazardous waste disposal project on the basis of the successful operation of the medical waste treatment project in Mianyang City in the early stage. Zhongke Huazhi Beijing Zhongke Huazhi Environmental Protection Technology Co., Ltd. (referred to as "Zhongke Huazhi"), established in 2019, is a professional management platform for hazardous waste treatment and disposal. The company has a demand for harmless treatment and disposal of multiple types of hazardous waste, with the ability to handle multiple technologies such as incineration, physicochemical, and landfill. At the same time, it matches the construction of supporting facilities such as safe landfills, explores new industrial service models, and creates a high-quality, high-tech, and high specification specialized company for hazardous waste treatment and disposal, achieving a win-win situation between corporate profits and social responsibility.

On March 4, in order to strengthen the leadership of party building, enrich the spiritual and cultural life of employees, and enhance the cohesion of the company. Santai Zhongke organized the staff to watch the patriotic film "Crossing the Yalu River"

A nation can prosper only if it hopes for its youth and keeps it forever. Over the past 100 years, the Communist Youth League of China has always worked with the Party and struggled with the Party, united and led the youth league members to write loyalty in the cause of the Party and the people, spread youth on the journey of national rejuvenation, and engrave glory in the annals of history

Work experience More than 3 years of purchasing experience, with technical experience preferred Educational requirements Bachelor degree or above, major in machinery or environmental protection Post responsibilities 1. Prepare and regularly update the purchase plan according to the purchase demand 2. Prepare the bidding process approval documents such as the bidding request and the bid determination report, and prepare the bidding documents, contracts and other bidding process documents 3. Procurement contract preparation, negotiation, price negotiation, contract submission and signing, bidding and procurement document filing and archive management 4. Maintain and update the supplier list and develop new suppliers 5. Arrange the procurement work meeting, and be responsible for the receipt, verification, registration and transmission of notices, express delivery, letters and faxes of the procurement team Job requirements Qualifications: Intermediate title, proficient in purchasing related knowledge, skilled in using computer office and common office software. Familiar with the solid waste treatment industry, and understanding of domestic waste incineration is preferred Competency: good communication skills, strong purchasing bargaining ability and work planning. Can work overtime. Able to travel in short and medium term

social responsibility As a listed environmental protection enterprise with technological attributes and state-owned assets, we have always adhered to the mission of being the builder and guardian of "Beautiful China". In the process of development, we actively explore the connotation of corporate social responsibility and demonstrate the responsibility and responsibility of the enterprise. Assist in the "dual carbon" strategy and protect the clear water and blue sky Centering on the national strategic objectives of "carbon peak" and "carbon neutrality", Zhongke Environmental Protection adheres to the working policy of "pollution reduction and carbon reduction and synergy", promotes the reduction, recycling and harmless treatment of solid waste, unswervingly adheres to the guidance of scientific and technological innovation, constantly breaks through key core technologies, realizes the synergy of pollution reduction and carbon reduction, and provides industrial support for science and technology to support the construction of "waste free cities" and the "dual carbon" strategic action plan. Calculation of carbon reduction emissions for the company in 2022 about 26 ten thousand tons Standard coal saving about 65 ten thousand tons of carbon dioxide equivalent Greenhouse gas reduction about 3,600 ten thousand Equivalent to afforestation Huize Community Transforms Neighborhood Avoidance into Neighborhood Benefit Zhongke Environmental Protection relies on its projects and combines the characteristics and needs of local governments and people to carry out environmental science popularization and social practice work in a tailored manner. Each holding company has held multiple public opening activities and themed public welfare activities to increase the interest of local community residents in ecological and environmental protection concepts, and enhance their understanding and recognition of environmental protection technologies and facilities. Support public welfare construction and beautify rural areas In response to the call of the country to consolidate and expand the achievements of poverty alleviation and effectively connect with rural revitalization, Zhongke Environmental Protection has repeatedly collaborated with local governments to carry out relevant activities, strengthen rural infrastructure construction, maintain and dredge roads, and ensure the travel and safety of villagers; Expand sales channels for agricultural and sideline products to assist in rural revitalization; Provide multiple employment opportunities to alleviate local employment problems. At the same time, the company actively carries out activities such as village enterprise civilization co construction, love for poverty alleviation, and poverty alleviation activities. Every year, during holidays, the company comforts the elderly who are alone and widowed, inherits the traditional virtues of respecting, loving, and helping the elderly to alleviate poverty, and benefits over a thousand people in need, including the elderly who are alone and widowed, and teenagers. The company always remembers its social responsibility, continuously consolidates poverty alleviation achievements, assists in rural revitalization, cares for and supports public welfare undertakings, and contributes to the construction of a beautiful and harmonious society.