Tranche Update on TriMas Corporation's Equity Buyback Plan announced on November 10, 2015.

TriMas Corporation manufactures a diverse set of products primarily for the consumer products, aerospace and industrial markets through its TriMas Packaging, TriMas Aerospace and Specialty Products groups. The Company's segments include Packaging, Aerospace and Specialty Products. The Packaging segment consists of the Rieke, Affaba & Ferrari, Taplast, Rapak, Plastic Srl, Aarts Packaging, Intertech and Omega brands. The Company develops and manufactures a range of dispensing products, polymeric and steel caps and closures, polymeric jar products, fully integrated dispensers for fill-ready bag-in-box applications, and consumable vascular delivery and diagnostic test components. The Aerospace segment is a designer and manufacturer of a diverse range of products, including highly-engineered fasteners, collars, blind bolts, rivets, ducting and connectors for air management systems. The Specialty Products segment is comprised of its Norris Cylinder and Arrow Engine Company businesses.