SAM MORRONE
President and Chief Executive Officer
Sam joined Jahna as President/COO in 2015 and was promoted to CEO in 2018. He is responsible for managing all business units and operations of E.R. Jahna Industries. Before joining Jahna, Sam had a 20 year career with Philips Lighting with several roles working his way to a plant manager position. While at Philips, Sam served as Plant Manager at the Paris, Texas and Salina, Kansas facilities. Sam then moved on to the Campbell Soup Company for the next 14 years managing multiple operations for Campbell Soup and subsidiary Pepperidge Farms. While with Campbell and Pepperidge Farms, Sam served as Plant Manager at the Paris, Texas facility for 5 years, plant manager at the Maxton, North Carolina facility for 5 years before serving as Plant Manager of the Pepperidge Farms Lakeland, Florida until 2015. Sam earned his Bachelor of Science degree in Business Administration, majoring in Accounting from West Virginia University (1978). He also completed an Executive Education Program at Indiana University Graduate School of Business (1993).
Bob Marion
Chief Operating Officer
Bob joined E.R. Jahna Industries as Chief Operating Officer in 2025, bringing more than 28 years of experience in the construction materials and ready-mix industry. Prior to joining Jahna, Bob worked closely with the company for more than 25 years as a customer, providing him with extensive familiarity with Jahna’s products, operations, and markets. Bob began his construction materials career with Florida Rock Industries in 1998, serving in sales and project management roles. He later spent 10 years with Vulcan Materials in sales and operations leadership before joining Argos USA as Division Manager of Major Markets, overseeing more than 40 ready-mix plants across Florida. Bob then served as Director of Operations for Summit Materials, overseeing more than 40 ready-mix plants, before serving as General Manager for Quikrete Construction Materials for Florida. Bob earned his Bachelor of Science degree from Virginia Wesleyan University and holds an NRMCA certification.
Emil R. Jahna III
Vice President
Oldest of Emil Jahna Jr.’s four children, Emil has been in and around the family mining business since a very young age. Before joining Jahna, Emil attended the Colorado School of Mines and worked for a brief time in underground coal mines in Southern Colorado. Emil currently plays an active role in mines planning and mineral deposit prospecting. In addition, his other roles include land acquisition and management, mine reserve development, and management of Jahna’s agriculture division, Clermont Farm and Sod. Clermont Farm and Sod includes cattle, citrus, timber, sod production, and row crops. Emil continues to play an active role in industry associations. Emil served as a board member of Florida Concrete and Products Association from 1990 to 2000 and was honored to serve as president from 1997 to 1998. He is highly active on the board of the Florida Limerock and Aggregate Institute.
Adell Jahna
Vice President of Sales & Marketing
Adell began his career in construction aggregates in 2009 as an accounts manager for S&R Logistics, the Jahna family’s aggregate hauling division. In 2010, Adell joined E.R. Jahna in a sales support role working on numerous projects to assist the company in leveraging today’s technology. Since 2010, he has established and worked to grow the Savannah, GA market as well as other business development initiatives. Today, Adell’s responsibilities include providing leadership to the sales team as well as developing and implementing sales, marketing, and business development strategies. Like all of our sales team, Adell is heavily involved in several industry associations as well as serving on the board of the Lake Wales Care Center. Adell earned a bachelor’s degree in Building Construction from the University of Florida and completed a Master’s Degree in Business Administration from Webber International University.