New energy vehicles have strict requirements for tire lightweighting and low rolling resistance, promoting the evolution of white carbon black technology towards "high dispersion and high reinforcement":


Material innovation: Highly dispersed white carbon black (HD-SiO ₂) is modified with silane coupling agents to form chemical bonds with rubber molecular chains, reducing the tire rolling resistance coefficient from 8.0 to 6.5 and increasing fuel efficiency by 5%.
Technological breakthrough: The multi-source raw material mixing process developed by CBT company converts by-products such as silicon tetrachloride and methyl trichlorosilane into gas-phase white carbon black, reducing costs by 30% and meeting the large-scale production needs of electric vehicle tires.
Market pattern: The top five global companies (Germany's Evonik, Japan's Tosa, China's CBT, etc.) occupy 60% of the market share, while domestic companies have increased their market share to 25% in emerging markets such as Southeast Asia and the Middle East through technological catch-up.
According to data from the China Rubber Industry Association, the demand for white carbon black for new energy vehicle tires is expected to reach 800000 tons by 2025, driving industry capacity expansion and technological iteration.