Since 2026, China’s ethyl silicone oil industry has undergone structural transformation. Driven by the iteration of new material technologies, expanding demand from downstream emerging industries and upgraded industrial compliance systems, the sector has completely abandoned the extensive mode of capacity expansion and steadily advanced toward high-quality development featuring high performance, high purity and green production. The accelerated localization of high-end products, breakthroughs in technologies for extreme working condition adaptation, and the implementation of new domestic and international environmental regulations have jointly propelled the ethyl silicone oil industry into a brand-new development cycle. Technological innovation serves as the core driving force for industrial upgrading. This year, domestic research institutions and silicon-based new material enterprises have jointly achieved major breakthroughs in the core preparation technology of wide-temperature-range ethyl silicone oil. A new type of high-performance ethyl silicone oil adaptable to extreme temperatures from -120°C to 450°C has been developed, greatly raising the applicable temperature limit of industry materials. Compared with traditional products, the new ethyl silicone oil delivers excellent high and low temperature resistance, insulation, lubrication and chemical stability, thoroughly solving the long-standing industrial pain points of traditional silicone oil such as easy failure and poor stability under extreme cold, high temperature and high-pressure working conditions. Meanwhile, the industry continues to optimize purification processes and energy-saving production technologies. By optimizing polymerization reaction conditions and impurity removal processes, local enterprises have precisely controlled the molecular weight distribution of products and significantly improved the purity of ethyl silicone oil, making the quality of electronic-grade and precision instrument-grade high-end products reach the world’s advanced level. Statistics show that the self-sufficiency rate of domestic high-end ethyl silicone oil products has continued to rise in 2026, expected to exceed 65% for the whole year, effectively breaking the long-term overseas monopoly and accelerating import substitution in high-end fields. In addition, the implementation of green production technologies including optimized acid resin method, solid waste reduction and waste heat recovery has effectively reduced production energy consumption and pollutant emissions, facilitating the industry’s green and low-carbon transformation. The industrial compliance system has been rapidly improved, forcing industrial restructuring and upgrading. New environmental regulations for the organic silicon industry have been intensively released at home and abroad in 2026. Domestically, cyclotetrasiloxane (D4) has been officially listed as a prohibited raw material in cosmetics, with the formal implementation scheduled for January 2028, providing a transition period for compliance upgrading of the ethyl silicone oil industry. Meanwhile, the EU has officially enforced new cVMS restriction rules, which strictly limit the content of D4 and D5 in products, imposing higher environmental standards for export-oriented ethyl silicone oil enterprises. Under dual compliance pressures, backward low-end production capacity is being phased out rapidly, and small and medium-sized manufacturers are gradually withdrawing from the market. Leading enterprises continue to expand market shares relying on advantages in technology, production capacity and environmental protection, leading to a significant increase in industrial concentration. Industry analysts pointed out that the ethyl silicone oil industry has completely stepped out of the extensive development model characterized by low-price competition and formed a new pattern of "technology-driven innovation, high-end demand-led growth, and compliant green development". In the future, with the vigorous development of emerging industries such as new energy and high-end manufacturing, coupled with deepening domestic substitution, the market space for high-end functional ethyl silicone oil will continue to expand. Furthermore, environmental compliance and technological innovation will become core competitive barriers in the industry. Leading enterprises with independent R&D capabilities, sound green production systems and high-end product capacity will continuously benefit from industrial upgrading dividends and lead the high-quality development of the industry.