Titan America Executive Committee

Mr. Zarkalis has served as the President and Chief Executive Officer of Titan America LLC since he joined the company in 2014. Prior to Titan America SA, Mr. Zarkalis served as Titan Cement Company S.A.’s Chief Financial Officer from 2010 to 2014 and as Executive Director of Business Development and Strategic Planning from 2008 to 2010. Prior to joining Titan Cement Company SA in 2008, Mr. Zarkalis served in a number of global business leadership roles with the Dow Chemical Company. Mr. Zarkalis has served since 2010 as a member of the Executive Committee and board of directors of Titan Cement Company S.A. and Titan Cement International SA. Mr. Zarkalis holds a bachelor of science in chemical engineering from The National Technical University of Athens and a master of science in chemical engineering from Pennsylvania State University.

Larry Wilt has served as the Chief Financial Officer of Titan America LLC since 2000. Prior to Titan America, Mr. Wilt served as Tarmac America, Inc.’s Corporate Controller from 1996 to 2000 and as Manager, Internal Audit from 1995 to 1996. Prior to joining Tarmac America, Inc. in 1995, Mr. Wilt worked for Ernst & Young LLP as a Senior Manager. Mr. Wilt holds a bachelor of science degree in commerce from the University of Virginia and is a Certified Public Accountant in Virginia and Georgia.

John Christy has served as the Chief Legal Counsel of Titan America LLC since he joined the company in 2016. Prior to Titan America, Mr. Christy served as Owens Corning’s Senior Vice President, General Counsel and Secretary from 2011 to 2015 and in various senior leadership roles in the law department from 1996 to 2011. Prior to joining Owens Corning, Mr. Christy worked in private legal practice at the Chicago firm of Ungaretti & Harris LLP. Mr. Christy holds a bachelor degree in history from Dartmouth College and a juris doctor from the Northwestern University, Pritzker School of Law.

Robert Paxton has served as the Chief Human Resources Officer of Titan America LLC since January 2025. Prior to joining Titan America, Mr. Paxton served as Senior Vice President, Human Resources and Chief Human Resources Officer, at Masonite International Corporation from 2018 to 2024. Prior to Masonite International Corporation, Mr. Paxton served as Owens Corning’s Vice President, Business Integration from 2016 to 2018, Vice President, Human Resources from 2013 to 2016 and Vice President, Talent Management & Corporate Human Resources from 2010 to 2013. Prior to Owens Corning, Mr. Paxton served as Broadwind Energy Inc.’s Senior Vice President, Human Resources from 2008 to 2010. Prior to Broadwind Energy Inc., Mr. Paxton held various human resources leadership roles with Whirlpool Corporation from 2002 to 2008, serving as Vice President, Global Human Resources from 2007 to 2008. Mr. Paxton has also served as Assistant Professor of Instruction in Management and was an Executive in Residence at Ohio University from August 2024 to December 2024. Mr. Paxton holds a bachelor of business administration in human resource management from Ohio University and a master of business administration from the University of Houston-Victoria.

Kevin Baird has served as Titan America LLC’s President, Mid-Atlantic Business Unit since 2017. Previously, Mr. Baird served as Senior Vice President of Ready-Mix Operations and Florida Concrete Products from 2013 to 2017 as well as the Florida Business Unit’s Vice President, Cement and Aggregate Operations, from 2011 to 2013. Prior to 2011, Mr. Baird held various engineering and operations management positions from 1999 to 2011. Mr. Baird holds a bachelor of science degree in electrical engineering from North Carolina State University.

Randy Dunlap has served as Titan America LLC’s President, Florida Business Unit since 2014. Previously, Mr. Dunlap served as President of Separation Technologies and Essex Cement from 2010 to 2014 and in various senior leadership positions within the Separation Technologies business from 2005 to 2010. Prior to 2005, Mr. Dunlap held various senior leadership positions for Holcim (US) Inc. from 1990 to 2005. Mr. Dunlap holds a bachelor of business administration from the University of Iowa.