Nucor, a provider of steel and steel products, with operating facilities in the United States, Canada and Mexico, completed the acquisition of the insulated metal panels business of Cornerstone Building Brands, the largest manufacturer of exterior building products in North America, for $1bn. "We are excited to officially welcome our CENTRIA and Metl-Span teammates as part of the Nucor team. Adding these two brands to our Insulated Panel Group will allow us to provide our customers with a full range of products to service high-end architectural applications, as well as the quickly expanding cold storage and warehousing markets," Jeff Carmean, Nucor President of Insulated Panel Group.