Jereh Group was founded in 1999 as an innovation-driven diversified industrial group. Its businesses span petroleum industrial clusters, natural gas industrial clusters, data center and power industrial clusters, and new energy industrial clusters, committed to providing customers with competitive, safe, and reliable products, services, and systematic solutions. Since its founding, we have taken sincerity as the cornerstone of Jereh's corporate culture. While continuously creating value for customers, we also contribute honesty, kindness, and respect to society. Today, our business operates in over 70 countries and regions, with more than 9,000 outstanding employees. We are open to cooperation with global partners, working together to build a more efficient and sustainable future. Currently, Jereh Group has two listed companies (Jereh Stock 002353, Deshi Stock 301158). It is a National Technology Innovation Demonstration Enterprise, National Intellectual Property Demonstration Enterprise, National Service-Oriented Manufacturing Demonstration Enterprise, and a National Quality Benchmark enterprise. The Group has 11 national high-tech enterprises and 1 National Pilot Demonstration Enterprise for Integration of New-generation Information Technology and Manufacturing. Driven by innovation, it has established more than 10 national and provincial-level scientific and technological innovation platforms, including a National Recognized Enterprise Technology Center, National Industrial Design Center, Shandong Technology Innovation Center, Shandong Manufacturing Innovation Center, and Shandong Engineering Research Center. It has 3 National Service-Oriented Manufacturing Demonstration Enterprises, 2 Shandong Science and Technology Leading Enterprises, and 3 Shandong Gazelle Enterprises. To date, it has undertaken over 90 national and local research projects, with 23 technological achievements reaching international leading standards, 11 achievements receiving provincial-level science and technology progress awards, and 4 achievements receiving provincial-level industrial design gold awards.

Shandong Bestsun Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in industrial exhaust gas treatment and comprehensive VOCs (volatile organic compounds) control, dedicated to providing customized environmental protection solutions for key industries such as petrochemicals, chemical manufacturing, pharmaceuticals, and coating applications. The company’s core business encompasses environmental protection technology development, research and manufacturing of environmental protection equipment, engineering general contracting for pollution control projects, and operation and maintenance services for environmental protection facilities. Its core competencies focus on the localization adaptation and system integration of mature technologies, including “zeolite rotor + RTO,” “activated carbon adsorption + desorption catalytic combustion,” and low-temperature plasma coupled with photocatalysis, offering full lifecycle service capabilities—from solution design and equipment manufacturing to installation/commissioning and long-term operation and maintenance. The company holds Class-B specialized design qualifications for environmental engineering (atmospheric pollution control engineering) and Grade-III professional contracting qualifications for environmental engineering projects; it has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications. It owns 12 utility model patents and 3 software copyrights covering key technological areas such as multi-stage adsorption structure optimization, intelligent desorption temperature control systems, and modular RTO furnace design. Representative projects include constructing a VOCs treatment system with an air handling capacity of 80,000 m³/h for a large rubber enterprise in Shandong Province, delivering an EPC service for a centralized activated carbon regeneration center for a chemical industry park in Weifang, and participating in the 2023 Shandong Provincial Demonstration Project for Deep VOCs Control in Key Industries. While primarily serving enterprises, industrial parks, and environmental protection regulatory authorities within Shandong Province, the company accommodates various collaboration models, including technical consulting, equipment supply, EPC engineering, and entrusted operations.

Jiangsu Qianyan Environmental Technology Co., Ltd. is registered in Jiangning District, Nanjing City, Jiangsu Province. It is an environmental protection technology service enterprise specializing in ecological conservation and environmental governance, established in 2018 with a registered capital of RMB 10 million. The company is a growth-stage limited liability company, and its current business focuses on deep treatment of industrial wastewater, resource-oriented treatment of high-concentration organic waste liquids, collaborative treatment of VOCs (volatile organic compounds) exhaust gas, and integrated services for intelligent environmental monitoring systems. Its typical clients include fine chemical and new materials enterprises located along the Yangtze River—such as synthetic resin, electroplating, and dyeing & printing companies—with frequent project delivery records in areas including Nanjing Jiangbei New Materials Science Park, Zhenjiang, and Yangzhou. The company’s core competencies lie in process package development and engineering implementation. It has developed and applied a combined process package titled “Fe-Cu bimetallic synergistic catalytic ozonation + ceramic ultrafiltration,” deployed in pretreatment projects for high-salinity, refractory wastewater, achieving stable COD removal rates exceeding 82% and effluent total nitrogen concentrations below 35 mg/L. Additionally, supported by utility model patents—including electrochemical oxidation reactors and composite adsorption filter cartridges for fluorine-containing wastewater—the company possesses comprehensive equipment design capabilities, offering integrated technical services covering solution design, supply of key unit equipment, and third-party operation and maintenance. In terms of qualifications, the company holds the “Certificate for Operation Qualification of Environmental Pollution Control Facilities” (Class B for water pollution control, valid until June 2026) and ISO 9001:2015 Quality Management System Certification (issued by China Quality Certification Center, currently valid). Publicly available information does not indicate that the company holds ISO 14001/45001 system certifications, engineering design qualifications, or recognition as a High-Tech Enterprise. Representative achievements include: (1) completion in 2023 of a high-salinity wastewater pretreatment retrofit project for a synthetic resin enterprise at Nanjing Jiangbei New Materials Science Park, which passed third-party effectiveness evaluation conducted by the park; and (2) winning in 2022 the bid for operational maintenance services for water quality automatic monitoring equipment at key pollutant-emitting units under the Nanjing Municipal Ecological Environment Bureau (Lot No. 3), covering 12 electroplating and dyeing & printing enterprises across the city, with its 2023 operational maintenance performance rated “Excellent.” Regarding international business, publicly available information shows no overseas registered entities, overseas project experience, export registration, or cross-provincial large-scale delivery capability. Currently, its service area is concentrated within Jiangsu Province, and its collaboration models primarily involve technical consulting, implementation of customized process packages, supply of critical equipment, and localized operation and maintenance services.