Tranche Update on TimkenSteel Corporation's Equity Buyback Plan announced on December 20, 2021.

Metallus Inc., formerly TimkenSteel Corporation, manufactures alloy steel, as well as carbon and micro-alloy steel using electric arc furnace (EAF) technology. The Company's portfolio includes special bar quality (SBQ) bars, seamless mechanical tubing (tubes), manufactured components, such as precision steel components, and billets. The Company manages raw material recycling programs, which are used internally as a feeder system for its melt operations and allow it to sell scrap not used in its operations to third parties. The Company's products and solutions are used in a range of demanding applications in various market sectors, including automotive; oil and gas; industrial equipment; mining; construction; rail; defense; heavy truck; agriculture, and power generation. Its production of manufactured components takes place at two downstream manufacturing facilities: Tryon Peak (Columbus, North Carolina) and St. Clair (Eaton, Ohio).