Management Team

Bryan Shinn

Chief Executive Officer

Brad Casper

President

Don Merril

Executive Vice President and Chief Financial Officer

Mike Winkler

Executive Vice President and Chief Operating Officer

J.P. Blanchard

Senior Vice President and President, Performance Materials

Zach Carusona

Senior Vice President and President, Specialty Minerals

Lynnette Crowder

Senior Vice President and Chief Human Resources Officer

Kevin Hough

Vice President and Corporate Controller

Michael Lawson

Vice President, Investor Relations and Corporate Communications

Daniel Miers

President, SandBox Logistics

Stacy Russell

Senior Vice President, General Counsel and Corporate Secretary

Alan Schultz

Vice President, Strategy

Derek Ussery

Senior Vice President and President, Oil & Gas