MINERALS TECHNOLOGIES INC

Minerals Technologies Inc. (together with its subsidiaries, the Company, MTI, we, us or our ) is a global, technology-driven specialty minerals company that develops, produces, and markets a wide range of minerals and mineral-based products and services. We are the world's largest producer of bentonite and a leading producer of calcium carbonate. Our products and minerals are an essential part of everyday life for millions of people around the world. The Company's vertical integration extends from mine to market: we directly source minerals from our globally distributed reserves, transform them at our plants through proprietary technologies and applications into fit-for-purpose products, and market these products to customers across a range of industries. This process is driven by our world-class manufacturing, R&D capabilities, efficient approach to new product development, and company-wide focus on innovation and Operational Excellence. At December 31, 2025, the Company's operations are reflected in the following two reportable business segments under which we managed our operations, assessed performance, and reported earnings: Consumer & Specialties and Engineered Solutions. The Consumer & Specialties segment serves consumer end markets directly with mineral-to-market finished products and also provides specialty mineral-based solutions and technologies that are an essential component of our customers’ finished products.