Chinese Fumed Silica Plant Begins Production

A joint venture between Evonik (Essen, Germany) and Wynca (Hangzhou, China) has started production of its new fumed silica plant located in Zhenjiang New Material Industry Park in Jiangsu Province, China. This joint venture, known as Evonik Wynca (Zhenjiang) Silicon Material Co., Ltd., will produce fumed silica marketed under the brand name AEROSIL.

As reported on this website, Evonik and Wynca broke ground on the new plant back on December 10, 2020. The plant is Evonik’s first fumed silica production site in China, where demand for the material has grown steadily. The joint venture will combine Evonik's product technology with Wynca’s silicone industry chain, producing high-value fumed silica products through the comprehensive use of monomer byproducts, methyltrichlorosilane, and chlorosilane from Wynca.

In addition, the byproduct hydrochloric acid that this plant produces will be fully utilized as a raw material for Wynca Zhenjiang Site. This production loop is expected to contribute to synergies among silicone monomer, chlorosilane, and fumed silica production. With this new joint venture, Evonik is well-positioned to build a complete global supply chain of fumed silica for customers in China and Asia.

“I am excited to witness the cooperation between Evonik and the Chinese partner Wynca,” says Dr. Claudine Mollenkopf, head of Evonik Silica business line. “The joint venture will be a strong complement to Evonik’s global presence in fumed silica. We expect win-win results through leveraging the expertise of both parties in silicon materials.”

“The partnership allows both sides to realize integration and complementarity in the supply chain of fumed silica and the recycling of materials,” says Jianhua Wu, chairman of the Wynca Group. “The improved value chain will enable us to deliver premium services and products to customers in China and Asia.”

In his speech at the opening ceremony, Fuliang Xia, president of Evonik Greater China, made the following remarks: “Since the plant broke ground in December 2019, we’ve completed the construction work on schedule with high quality and safety standards. We live up to our commitment to the customers. Evonik continues to develop its global footprint and focus on providing local customers with tailor-made products and services. We are also looking forward to joining forces with Wynca, our strong partner in China, to drive the growth in the Chinese market.”

Source: Evonik,