Tranche Update on Martinrea International Inc.'s Equity Buyback Plan announced on March 31, 2023.

Martinrea International Inc. is a Canada-based diversified and global automotive supplier engaged in the design, development and manufacturing of highly engineered, value-added lightweight structures and propulsion systems. The Company’s offerings include a range of products, assemblies and systems for small and large cars, crossovers, pickups and sport utility vehicles. The Company's operations are segmented on a geographic basis between North America, Europe and Rest of the World. The Company's solutions include lightweight structures, propulsion systems, flexible manufacturing, and graphene technology. Its lightweight structure products include complex assemblies and exterior trim. Its flexible manufacturing products include bus frame assemblies and front vertical corner modules. Its graphene products include graphene and nylon coated brake lines and electric vehicle batteries enhanced with graphene. It operates in around 59 countries, such as Canada, the United States and Mexico.