AA vs STE Comparison

Alcoa is a vertically integrated aluminum company whose operations include bauxite mining, alumina refining, and manufacturing primary aluminum. It is one of the world's largest bauxite miners and alumina refiners by production volume, but sits outside the top-10 aluminum producers, a list dominated by Chinese companies. Profits are closely tied to prevailing commodity prices along the aluminum supply chain.Alcoa was the first mass producer of aluminum, launching the world-changing Hall-Heroult smelting process in the 1880s, making aluminum affordable. It listed as a public company in 1925. In 2016, Alcoa spun off its automotive and aerospace metal parts segment to focus on mining, smelting, and refining. It bought the 40% unowned balance of AWAC in mid-2024.

Steris is an Ireland-domiciled medical technology company focused on sterilization services and infection prevention. The company is the global leader in contract sterilization services, ensuring the safe delivery of single-use and implantable medical equipment to hospitals around the world. Steris also sells sterilizers, washer-disinfectors, and other decontamination equipment and supplies for use by care provider facilities and in biopharma manufacturing sites. Domiciled in the United States before its inversion to Ireland, the firm derives approximately 70% of its revenue from Healthcare Services, 19% from Applied Sterilization Technologies, or AST, and 11% from life sciences services after the divestment of its dental products business.