Environmental Information Disclosure of Shandong Hengfeng Rubber & Plastics Co., Ltd.

　　I. Basic Information:

　　Company Name: Shandong Hengfeng Rubber & Plastics Co., Ltd.

　　Enterprise Credit Code: 91370523164963460H Legal Representative: Li Shengfa

　　Company Address: Economic Development Zone, Dawang Town, Guangrao County Contact Information: 0546-6893242

　　Business Scope: Manufacturing and sales of all-steel radial tires, semi‑steel radial tires, automotive inner and outer tubes, and tire beads; sales of natural rubber, synthetic rubber, reclaimed rubber, and rubber raw materials; authorized self‑operated import and export business. (The foregoing activities do not include precursor chemicals, highly toxic substances, or flammable and explosive hazardous chemicals.) (For items requiring approval under the law, business operations may only be conducted upon approval by the relevant authorities.)

　　Production capacity: 2 million sets of all-steel radial tires per year, and 6 million sets of semi-steel radial tires per year.

　　II. Wastewater Discharge Information

　　Major pollutants: particulate matter, flue gas, and wastewater.

　　Emission Standards for Pollutants:

　　Comprehensive Emission Standard for Air Pollutants, GB 16297–1996

　　Emission Standard for Pollutants from the Rubber Products Industry, GB 27632–2011

　　Emission Standard for Odorous Pollutants, GB 14554–1993

　　Total wastewater discharge: COD ≤ 24.6 tons/year, Ammonia Nitrogen ≤ 2.38 tons/year.

　　Exhaust emission concentrations: particulate matter ≤ 10 mg/m³, total non-methane hydrocarbons ≤ 10 mg/m³, odor concentration 2,000 (dimensionless).

　　Emission methods: 1. Dust: Exhaust gases from kneading, calendering, and extrusion are collected by hoods, passed through baghouse dust collectors for removal of particulate matter, and then treated by an SQU resonant quantum synergistic deodorization system before being discharged through a 30-meter-high stack. 2. Sulfur‑containing flue gas is collected by hoods, treated by the SQU resonant quantum synergistic deodorization system, and discharged through a 20-meter-high stack.

　　Number and distribution of discharge outlets: 8 at the mixing stage, 11 at the vulcanization stage.

　　III. Construction and Operation of Pollution Prevention and Control Facilities

　　The company’s waste gas and odor pollution control project primarily addresses the odorous emissions generated during the internal mixing and vulcanization processes. With a total investment of RMB 4.1 million, the project employs the SQU resonant quantum synergistic deodorization technology. For the internal mixing process, the flue gas treatment capacity covers four rubber‑mixing production lines, supported by eight sets of odor‑control units, collection ductwork, and sealing systems, achieving a combined exhaust airflow of up to 360,000 cubic meters per hour. The vulcanization process involves the collection and treatment of flue gases and odors from four all‑steel and five semi‑steel vulcanization trenches, equipped with 11 odor‑treatment units, collection ducts, and sealing systems, for a total exhaust airflow of 490,000 cubic meters per hour. The system is currently in normal operation, and sampling and testing have been commissioned to the Dongying Municipal Environmental Monitoring Station. According to the test report, the treated exhaust gas parameters meet or exceed the emission standards.

　　IV. Generation and Disposal of Hazardous Waste

　　The company’s hazardous waste is primarily generated during the internal mixing process. Waste category: HW08 waste mineral oil; waste code: 900-249-08; hazardous characteristics: toxicity and flammability. The generated waste mineral oil is transferred via the environmental protection bureau’s inter‑agency transfer manifest and entrusted to a qualified entity for disposal.

　　V. Environmental Impact Assessment of the Construction Project

　　2-million‑unit‑per‑year all‑steel radial truck tire project, Donghuan Jianbei [2017] No. 25; 6-million‑unit‑per‑year high‑performance semi‑steel radial tire project, Donghuan Jianshen [2006] No. 221 and Donghuan Jianbei [2017] No. 7.

　　VI. Emergency Response Plan for Sudden Environmental Incidents

　　The company prepared, as required, the Emergency Response Plan for Sudden Environmental Incidents of Shandong Hengfeng Rubber & Plastics Co., Ltd. and submitted it to the Guangrao County Environmental Protection Bureau for record‑keeping in July 2017.

　　VII. Other Environmental Information That Should Be Disclosed: None