(f.l.t.r.): Christian Edlinger, Geoff Varga, Lauren Kjeldsen, Melissa McCormick and Jim Coutu, Business Development Manager, Michigan Economic Development Corp.

Press release
Colloidal silica
June 7, 2024

Evonik invests in semiconductor industry growth in North America

Evonik, one of the world’s leading specialty chemicals companies, has started the production of ultra-high purity colloidal silica for the semiconductor industry at its new facility in Weston, Michigan.

  • North America’s First Ultra-Pure Colloidal Silica Plant begins production
  • Facility in Weston, Mich., produces crucial raw material for the semiconductor industry
  • New Global Semiconductor Center of Excellence in Allentown, Pa., adds Research & Development and technical support

Weston, Michigan, USA: Evonik, one of the world’s leading specialty chemicals companies, has started the production of ultra-high purity colloidal silica for the semiconductor industry at its new facility in Weston, Michigan. Colloidal silica is a critical raw material for the electronics and semiconductor industries, whose growth is driven by a surging global demand for complex and increasingly smaller microchips and digital products. The plant is the first of its kind in North America.

“The new facility is a strategic portfolio addition and testament to Evonik’s commitment to innovation and supply security for our customers in the semiconductor market,” said Lauren Kjeldsen, Head of Evonik’s Smart Materials Division. “We are proud to inaugurate this new addition to our Weston facility.”

Recent semiconductor industry investments in the U.S., facilitated by government incentives under the CHIPS Act of 2022, have amounted to nearly $450 billion across 25 states, according to the Semiconductor Industry Association. The incentives aim to stabilize the semiconductor supply chain in America. The industry’s manufacturing capacity in the U.S. is expected to triple by 2032.

The new Colloidal Silica plant is located at Evonik’s site in Weston, which is already experienced in producing ultra-pure materials for the semiconductor industry. The new plant will be integrated into existing processes at the site. It will make Evonik one of the only market participants that can reliably produce the colloidal silica required for chemical mechanical planarization (CMP) in the necessary quality and purity. CMP, the microscopically precise polishing of semiconductors, is a crucial step in microchip production. Evonik’s colloidal silica, which is marketed under the IDISIL® brand, is characterized by its ultra-high purity and particularly narrow particle size distribution.

“We are proud that Evonik choose Make It in Michigan as we continue to build on our growing semiconductor ecosystem, especially its supply chain,” said Quentin L. Messer, Jr., CEO of the Michigan Economic Development Corporation. “On behalf of the MEDC and Team Michigan, I congratulate Evonik on its ribbon cutting and thank them for their vote of confidence in our state that helps us to win more projects that attract people and revitalize places.”

In addition to the ultra-pure colloidal silica plant, Evonik has recently opened the Global Semiconductor Center of Excellence in Allentown, Pennsylvania. The Center now enables Evonik to focus on critical chemicals for microchip production. The Center’s team will engage in customer-driven projects and offer technical support for IDISIL customers.

“The Semiconductor Center of Excellence is an investment in the anticipated growth of the semiconductor chemicals market over the coming years,” said Christian Edlinger, Head of the Americas region in Evonik’s Silanes business line. "Our team's vast experience and capabilities will enable us to successfully develop and market new, innovative chemicals that will help our customers stay ahead of the curve."

The Center is part of Evonik’s Innovation Hub in Allentown, which consists of several state-of-the-art testing and processing labs as well as a pilot plant.

Company information

Evonik is one of the world leaders in specialty chemicals. The company is active in more than 100 countries around the world and generated sales of €15.3 billion and an operating profit (adjusted EBITDA) of €1.66 billion in 2023. Evonik goes far beyond chemistry to create innovative, profitable, and sustainable solutions for customers. More than 33,000 employees work together for a common purpose: We want to improve life today and tomorrow.


The Smart Materials division includes businesses with innovative materials that enable resource-saving solutions and replace conventional materials. They are the smart answer to the major challenges of our time: environment, energy efficiency, urbanization, mobility and health. The Smart Materials division generated sales of €4.46 billion in 2023 with more than 8,100 employees.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations, or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.