Bob Winchester has been active in the Aggregates Industry for over forty years. The scope of his experience is varied and includes:

• 10 years as a plant manager
• 6 years as Manager of Capital Budgets and Maintenance Services
• 2 years as Regioal Production Manager
• 2 years as Regional Sales Manager
• 4 years as Division President
• 16 years as Executive Vice President of the Corporation

All of the above was with the Martin Marietta Materials.

Educational background and other activities include:

---B.S. in Mechanical Engineering---Georgia Institute of Technology

---Young Executive Institute---University of North Carolina

---Board of Directors---National Stone Association

--- Executive Committee---National Stone Association

---Board of Trustees--- Aggregates Foundation for Technology, Research and Education

---Board of Directors--- North Carolina Engineering Foundation

Bob Winchester was involved in many segments of the aggregates industry:

-Plant Managment                              -Sales

-Operations                                         -Maintenance

-Engineering                                       -Capital Budgeting

-Capital Spending                              - Purchasing

-Natural Resources                           -Acquisitions

-Green-siting                                     - Management

Bob is well respected throughout the industry and he has received many awards for the years of dedicated work in the Aggregate Industry. He is very proud of his contribution in the growth and success of Martin Marietta Materials.

Bob resides in Raleigh, N.C. and his hobbies include golf and woodworking.