Ms. Lloyd served as Executive Vice President and Chief Financial Officer of Martin Marietta Materials, Inc. ( Martin Marietta ), a publicly traded global supplier of building materials, from 2005 until her retirement in 2017. She joined Martin Marietta in 1998 as Vice President and Controller and was named Chief Accounting Officer in 1999. Ms. Lloyd currently serves as a director of Highwoods Properties, Inc. and previously served as a director and non-executive chair of James Hardie Industries p.l.c. We believe that Ms. Lloyd should continue to serve as a director because of her financial expertise, her deep knowledge of the construction aggregates business, a business that is related to ours, and because of her extensive public-company experience, including as a public company director.