Who we are
Founded in May 1955, Sinopec Maoming Petrochemical Company was among the 156 key national projects during China’s First Five-Year Plan. It originated from the mining of oil shale and processing of synthetic oil. It is China’s first ten-million-ton refinery, first million-ton ethylene complex, the country’s most integrated fuel-lubricant-chemical refinery, the second refining and chemical enterprise in China with annual profits exceeding RMB 10 billion, and the core leading enterprise of Guangdong’s green petrochemical strategic industrial cluster.Over 70 years of development,...
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Sustainability
Environmental Stewardship
Adhere to the synchronous development of industrial production and environmental protection.
Emission Compliance
Ensure stable and compliant emissions of pollutants
Accident Prevention
Prevent major environmental pollution accidents, and build a green and civilized enterprise
Our Culture
Culture
Provide customers with more valuable chemical supply solutions
Core Values
Putting oneself in others' shoes, achieving mutual benefits for employees, customers, and shareholders
Business Philosophy
Take the market as the navigation mark and the customer as the center
Corporate Mission
Create value for customers, employees, and shareholders
News Feed
Sinopec Maoming Petrochemical POE: Breaking Through with Proprietary Technology to Accelerate China's High-End Polyolefin Elastomer Localization
Polyolefin Elastomer (POE), often referred to as the "gold" of advanced polymer materials, combines the excellent processability of plastics with the elasticity, weather resistance, and impact performance of rubber. It has become an indispensable material for photovoltaic (PV) modules, lightweight automotive components, polymer modification, and many other high-performance applications.For decades, core POE production technologies have been dominated by a handful of international chemical companies, leaving China's market heavily dependent on imports and creating a critical bottleneck in the domestic new energy supply chain.As one of Sinopec's largest integrated refining and petrochemical complexes in South China, Sinopec Maoming Petrochemical Company has spent years advancing high-end polyolefin technologies. The company has successfully commissioned China's landmark 50,000-ton-per-year POE industrial demonstration plant, utilizing a fully self-developed production process with independent intellectual property rights. This achievement marks China's successful transition from laboratory research and pilot production to stable commercial-scale manufacturing, opening a new chapter in domestic POE substitution.In 2022, Maoming Petrochemical successfully started up its 1,000-ton-per-year POE pilot plant, producing qualified products on the first attempt and making Sinopec the first company in China to master the complete proprietary POE production technology.Building upon this success, the company invested nearly RMB 1 billion to construct a 50,000-ton-per-year industrial demonstration facility covering approximately 2.76 hectares. In April 2025, the unit achieved successful first-feed startup and quickly reached stable full-load operation.The production line features three major competitive advantages.Proprietary Metallocene Catalyst and Solution Polymerization TechnologyInstead of relying on expensive overseas licensing, Sinopec developed its own catalyst system in collaboration with the Sinopec Beijing Research Institute of Chemical Industry. The technology enables precise molecular weight distribution control, producing POE with over 93% light transmittance and outstanding UV aging resistance comparable to internationally recognized premium grades.Fully Integrated Raw Material Supply ChainMaoming Petrochemical operates integrated ethylene production facilities together with a 50,000-ton-per-year Linear Alpha Olefin (LAO) unit capable of supplying ethylene, 1-octene, and 1-butene—the key feedstocks for POE production. This integrated supply chain minimizes procurement risks while reducing production costs and improving operational efficiency.Diversified Product PortfolioThe facility is designed to manufacture:30,000 tons/year Ethylene–1-Octene POE, primarily for photovoltaic encapsulation films.20,000 tons/year Ethylene–1-Butene POE, targeting automotive impact modification and engineering plastics.This flexible production strategy enables one facility to serve multiple rapidly growing industries.Thanks to its saturated molecular structure without unsaturated double bonds, POE offers significantly better resistance to ozone, thermal oxidation, and low-temperature impact than conventional elastomers such as SBS and EPDM. Outdoor applications can achieve service lives of 10–15 years, making POE suitable for demanding environments.Today, Maoming Petrochemical's domestically produced POE is expanding across four major application sectors.1. Photovoltaic IndustryWith the rapid adoption of TOPCon and HJT solar cell technologies, conventional EVA encapsulants face challenges in moisture resistance and long-term durability.Maoming Petrochemical's octene-based POE provides:High optical transparencyExcellent moisture barrier performanceSuperior UV resistanceReduced power degradation throughout the module lifecycleThese advantages make it an ideal encapsulation material for next-generation N-type photovoltaic modules and a competitive domestic alternative to imported POE.2. Automotive Lightweight SolutionsElectric vehicles require lightweight, durable, and low-VOC materials.When blended with polypropylene, Maoming Petrochemical POE significantly enhances the impact resistance of bumpers, dashboards, door panels, and interior components, particularly under low-temperature conditions.Its modified compounds have already passed qualification by several leading Chinese new energy vehicle manufacturers and entered commercial production.3. Plastic ModificationAdding relatively small amounts of POE into PP, PE, and TPE compounds greatly improves:ToughnessLow-temperature flexibilityCrack resistanceLong-term durabilityThese modified materials are widely used in household appliances, pipes, cable insulation, and engineering plastics.4. High-End Consumer Products and Foamed MaterialsLow-odor, high-resilience POE grades are suitable for:Athletic shoe midsolesFood-contact packaging filmsMedical cushioning materialsEnvironmentally friendly recyclable productsThese applications align with the global trend toward sustainable material development.Before Maoming Petrochemical's industrial POE project entered operation, China's annual POE consumption exceeded 1.1 million tons in 2025, with approximately 76% supplied through imports. High-performance grades for photovoltaic and automotive applications remained almost entirely dependent on overseas manufacturers.The successful commercialization of Maoming's 50,000-ton-per-year demonstration plant, together with planned POE projects at Sinopec Tianjin Petrochemical and Sinopec Zhenhai Refining & Chemical, is creating a coordinated Sinopec production network with a combined capacity of approximately 250,000 tons annually.Industry analysts expect China's domestic POE self-sufficiency rate to approach 50% by 2027, significantly reducing dependence on imported materials while improving market competitiveness.For downstream manufacturers, localized POE production delivers three major benefits:Stable SupplyDomestic production shortens lead times and minimizes supply chain disruptions caused by international shipping and geopolitical uncertainties.Lower Procurement CostsIntegrated local manufacturing reduces logistics expenses, import duties, and overall purchasing costs compared with imported products.Customized Product DevelopmentLeveraging Sinopec's research platform, Maoming Petrochemical can rapidly adjust melt flow index, elasticity, comonomer content, and other key properties to satisfy the evolving requirements of photovoltaic manufacturers, automotive suppliers, and polymer compounders.As South China's leading ethylene production base, Maoming Petrochemical has even broader ambitions beyond its current demonstration facility.The company is planning a long-term expansion toward 200,000 tons of annual POE capacity, further strengthening China's domestic supply of premium elastomer materials.More importantly, the POE project establishes an integrated industrial chain encompassing:EthyleneAlpha OlefinsPOEAdvanced downstream polymer materialsThis integrated ecosystem will promote coordinated development of polypropylene, polymer modification, and specialty materials throughout Guangdong Province, helping establish one of China's most important high-end polyolefin manufacturing clusters.From a national strategic perspective, the successful commercialization of Sinopec's proprietary POE technology also provides a proven industrial model for future large-scale POE projects across China, accelerating the localization of critical materials supporting the country's new energy industry.The successful commercialization of POE by Sinopec Maoming Petrochemical Company represents a landmark achievement in China's pursuit of technological independence in advanced polymer materials.From complete reliance on imports to fully proprietary industrial-scale production, this breakthrough strengthens the domestic supply chain for photovoltaic power generation, electric vehicles, and other strategic emerging industries.As Maoming Petrochemical continues expanding production capacity and enriching its product portfolio, domestically produced POE is expected to replace an increasing share of imported materials, providing a solid foundation for China's high-end manufacturing sector while demonstrating Sinopec's growing technological leadership in the global polyolefin industry.
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Sinopec Maoming Petrochemical HDPE: A Benchmark for China's High-Performance Materials Driving the Premium Polyolefin Market
As one of the world's most widely used engineering plastics, High-Density Polyethylene (HDPE) has become an essential raw material across industrial manufacturing, food packaging, infrastructure construction, automotive production, and numerous other sectors. Thanks to its outstanding strength, chemical resistance, excellent processability, and cost-effectiveness, HDPE continues to play a critical role in modern manufacturing.Among China's leading HDPE producers, Sinopec Maoming Petrochemical Company stands out as a benchmark enterprise. With decades of expertise in polyolefin production, Maoming Petrochemical has built a comprehensive portfolio of premium HDPE products through advanced manufacturing technologies, rigorous quality management, and continuous innovation. Today, its products not only fill critical domestic technology gaps but have also entered international high-end supply chains, representing the growing competitiveness of China's advanced polymer industry.As one of South China's largest integrated refining and petrochemical complexes, Maoming Petrochemical possesses a well-established industrial infrastructure and one of China's earliest large-scale HDPE manufacturing facilities.Its flagship 350,000-ton-per-year HDPE plant utilizes the advanced Chevron Phillips slurry loop process, supported by 135 major pieces of equipment sourced from nine countries, many of which were introduced into China for the first time. This state-of-the-art production platform provides industry-leading manufacturing capabilities.The facility offers significant advantages, including:Large single-line production capacityComprehensive product portfolioStable product qualityExcellent processing performanceMaoming Petrochemical manufactures more than 20 HDPE grades, including blow molding, film, injection molding, pipe, monofilament, and cable compounds, serving both general-purpose and high-performance industrial applications.Supported by its fully integrated refining and petrochemical value chain, the company ensures stable feedstock supply, strict production control, and complete product traceability, delivering consistent product purity, quality, and reliability.Unlike conventional commodity HDPE, Maoming Petrochemical focuses on developing differentiated, high-performance specialty materials that address increasingly demanding market requirements.Through continuous catalyst optimization, molecular structure engineering, and formulation improvements, the company has achieved product performance comparable to internationally recognized premium materials.Its HDPE products feature:High stiffnessHigh crystallinityExcellent mechanical strengthOutstanding creep resistanceSuperior impact resistanceExcellent long-term durabilityFor example, the well-known TR571M grade delivers:Tensile Yield Strength: 27.1 MPaFlexural Modulus: 1,132 MPaThese properties enable excellent long-term performance under repeated mechanical stress while maintaining outstanding resistance to acids, alkalis, salt spray, and various chemical solvents.Maoming Petrochemical has also developed several specialty HDPE grades designed for demanding industrial environments.HHM5502LW for Heavy-Duty Blow MoldingDesigned for cold-chain logistics and harsh industrial environments, HHM5502LW provides:Environmental Stress Crack Resistance (ESCR) exceeding 1,000 hoursReliable performance at temperatures as low as −30°CExcellent UV resistanceOutstanding weatherabilityIt is widely used for:200-liter chemical drumsIndustrial storage tanksCold-chain containersHeavy-duty packagingThese properties significantly reduce cracking risks under harsh operating conditions.Food Packaging MaterialsMaoming Petrochemical also produces food-grade HDPE featuring:Low odorHigh purityMinimal extractablesExcellent hygienic performanceThese materials are suitable for milk bottles, bottled water containers, and food-contact packaging. Their outstanding quality has enabled successful exports to Australia and New Zealand, marking Sinopec's entry into these premium packaging markets.Automotive Fuel Tank MaterialsOne of the company's most significant technological achievements is its proprietary HDPE for automotive fuel tanks.Through domestically developed catalyst technology, optimized comonomer systems, and precise molecular design, Maoming Petrochemical has successfully broken long-standing foreign technology monopolies.The material offers:Balanced stiffness and toughnessExcellent environmental stress crack resistanceSuperior fuel barrier propertiesOutstanding durabilityThese advantages provide reliable material support for lightweight vehicle manufacturing and the localization of automotive components.Thanks to its extensive product portfolio, Maoming Petrochemical HDPE supports a wide range of applications.Low-odor, food-contact-grade HDPE is widely used in:Drinking water bottlesDairy packagingFood containersThe materials comply with international food safety requirements while ensuring excellent sealing performance.Heavy-duty HDPE grades provide excellent impact resistance, crack resistance, and chemical resistance, making them suitable for:Chemical drumsIndustrial storage tanksLogistics containersThese materials perform reliably in highly corrosive and low-temperature environments.Specialized automotive HDPE grades are used in lightweight fuel tanks requiring:High barrier performanceLong-term durabilityReduced vehicle weightThey serve as competitive domestic alternatives to imported materials.Pipe and cable-grade HDPE offers:Excellent electrical insulationOutstanding weather resistanceHigh toughnessTypical applications include municipal water supply systems, power cable sheathing, geomembranes, and infrastructure construction.Film, injection molding, and monofilament grades are widely applied in:Woven bagsHousehold plastic productsPackaging filmsThese materials offer excellent flowability and stable processing performance for high-speed manufacturing.For many years, China's premium HDPE market relied heavily on imported materials, resulting in higher procurement costs, longer lead times, and limited customization.Leveraging decades of technological expertise and continuous innovation, Maoming Petrochemical has successfully overcome these challenges by developing domestically produced high-end HDPE materials that compete with leading international products.From general-purpose plastics to specialty engineering materials, and from domestic supply to international exports, Maoming Petrochemical's development reflects the transformation of China's petrochemical industry from technology follower to innovation leader.Supported by integrated refining operations, proprietary technologies, a comprehensive product portfolio, and stringent quality management, the company provides reliable, cost-effective HDPE solutions while embracing greener manufacturing processes that align with global sustainability and carbon reduction initiatives.As one of Sinopec's core production bases, Sinopec Maoming Petrochemical Company continues to elevate China's HDPE industry through technological innovation and uncompromising product quality.By moving beyond low-end commodity plastics and focusing on high-performance specialty materials, the company demonstrates the growing manufacturing strength and innovation capability of China's petrochemical sector.Looking ahead, Maoming Petrochemical will continue advancing high-end polyolefin technologies, expanding its HDPE product portfolio, and improving material performance to support industrial modernization, enhance consumer applications, and accelerate the localization of advanced polymer materials, contributing to the next chapter of China's high-performance chemical industry.
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Sinopec Maoming Petrochemical | Butadiene Rubber Exported to Southeast Asia
Recently, 60 tons of custom polybutadiene rubber produced by Maoming Petrochemical in Guangdong successfully arrived at a port in Cambodia via Zhanjiang, marking targeted supply to the Southeast Asian market.In recent years, leading domestic automakers have accelerated their layout in Southeast Asia, driving a steady surge in local demand for automotive tires, alongside growing requirements for customized and standardized high-quality rubber raw materials. To precisely meet overseas clients’ demands, Maoming Petrochemical has deepened collaborative ties with China’s leading tire manufacturers. It joined hands with North China Chemical Sales Company and the Beijing Research Institute of Chemical Industry to form a technical research team, carrying out special R&D targeting clients’ key performance indicators.After nearly two years of technical breakthroughs, the product passed the customer’s stringent certification and fully complies with supporting standards for their export products. This has opened up a stable supply channel serving Southeast Asia.
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