HOUSTON — Ref-Chem LP recently promoted Nathan McGaughey. McGaughey has been promoted to assistant project controls manager. A graduate of Texas Tech University, McGaughey spent several years as a field engineer prior to joining Ref-Chem’s Project Controls Department four years ago. Under his leadership, the project controls team will continue to grow. For more information, visit www.ref-chem.com or call (888) 685-8531.