Nancy Kowalski to Lead INVISTA as New President and CEO

WICHITA, Kan. -- Nancy Kowalski has been named new president and CEO of INVISTA, a Koch company, effective March 1, 2026. In this role, she'll be responsible for continuing to adapt and improve business modelsacross INVISTA, a global manufacturer of chemical intermediates, polymers and fibers used in parts for the automotive industry, medical equipment, airbags, food packaging and clothing.

Nancy has 22 years of expertise across INVISTA in a variety of its business lines and its global supply chain. She joined INVISTA as a director of corporate reporting in 2004 and went on to hold leadership roles in treasury,global finance and global supply chain. She was most recently executive vice president for INVISTA's global nylon business, with operations in China, Europe, and the United States, leading its overall profit and loss management and overseeing Nylon Sales and Marketing, the strategic management of feedstock procurement and purchasing processes for the company.

"I am honored to lead INVISTA at such an important time for the company," Nancy Kowalski said. "Building on the strong legacy of operational excellence and culture that has been established, we are focused on continuing to improve our business, drive results, and deliver long-term value for our customers, employees, and stakeholders."

After more than 30 years of service to Koch, Brook Vickery, president and CEO of INVISTA, has announced his retirement, effective March 1, 2026. Brook joined Koch in 1991 as an instrument engineer for Flint Hills Resources. He joined INVISTA as its global operations leader in 2023 and then became president and CEO in January 2025.

Brook has been fundamental in helping transform Koch's operational models both at Flint Hills and INVISTA. His ability to build culture, apply Principle Based Management™, and deliver results and operational reliability will continue to create long-term value.

"All of us who had the privilege to work with Brook thank him for his years of contributions to Koch companies," said Jeff Ramsey, executive vice president for Koch. "I am confident that this new leadership team is well-positioned to continue supporting the priorities and results we have all been working toward."

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About INVISTA

INVISTA is a global manufacturer of chemical intermediates, polymers and fibers. From parts for the automotive industry to medical equipment, airbags, food packaging and clothing, our ingredients in the nylon 6,6 and polypropylene value chains help bring many of life's essential products to market. A subsidiary of Koch since 2004, INVISTA is committed to innovation and responsibly creating more value for its customers and society while consuming fewer resources to make these products. See the bigger picture at INVISTA.com.