In October 2025, Yunneng Silicone Technology Development Co., Ltd., a subsidiary of Yunnan Energy Investment Group, announced that its independently developed low ring vinyl silicone oil had achieved large-scale production, with an annual production capacity exceeding 5000 tons. This technological breakthrough marks a crucial step forward for China's organic silicon materials towards high-end and green development, and also provides more environmentally friendly basic material solutions for global electronic packaging, biomedical and other fields.


Technological Breakthrough: Cracking Industry Pain Points
Traditional vinyl silicone oil requires a secondary vulcanization process due to its high ring content, which not only increases energy consumption but also affects downstream product performance in terms of volatility, making it difficult to meet environmental regulations such as REACH and RoHS in the European Union. The R&D team of Yunneng Silicon Materials spent 6 months overcoming challenges such as catalyst screening and polymerization process optimization. They successfully reduced the ring content to below 300ppm and the volatile matter to less than 0.1%. At the same time, they achieved full process automation and precise control, and the product consistency reached the international leading level.
The low ring technology is the core of the industry's green transformation, "said the project leader. The product has passed rigorous testing by multiple semiconductor companies and can reduce signal attenuation by 30% and improve heat dissipation efficiency by 18% in chip packaging.


Market response: Explosion of high-end demand
With the increasing demand for material performance in industries such as 5G communication and new energy vehicles, the market demand for low ring vinyl silicone oil has surged. Data shows that by 2025, the global market size of methyl hydrogen silicone oil will reach 328 million US dollars, with low ring products accounting for over 40%. Once Yunneng Silicon Materials products are launched, they immediately sign long-term supply agreements with multiple leading electronics companies and export them to the Southeast Asian market.
This silicone oil solves the problem of our long-term dependence on imports, "said the purchasing director of a photovoltaic company. Its ultra-low volatility characteristics can significantly improve the service life of components and reduce maintenance costs.


Strategic significance: Leading the industry upgrade
The breakthrough of Yunnan Energy Investment is not an isolated event. In recent years, Hubei Xingrui Silicon Materials has achieved low-cost preparation of ultra-low viscosity methyl silicone oil through patented technology, and Beijing Hengxiang Hongye has launched radiation resistant silicone oil through molecular level modification technology, both pointing to the same trend: Chinese silicone oil enterprises are shifting from scale expansion to technology driven development.
In the next three years, the dependence on high-end silicone oil imports is expected to decrease from 35% to below 20%. "Experts from the China Fluorosilicon Organic Materials Industry Association pointed out that with the participation of enterprises such as Yunneng Silicon Materials in global competition, the discourse power of Chinese silicone materials will be further enhanced.