Item 5.02. Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On October 31, 2012, the Company announced that Bob Wason, Senior Vice President and General Counsel, will retire as of October 31, 2013. In the transition period, Mr. Wason will serve as Senior Advisor to the Executive Management Team.

(c) On October 31, 2012, the Company announced that Danny Shepherd (61), formerly Executive Vice President - Construction Materials, has been appointed Executive Vice President and Chief Operating Officer. The information regarding Mr. Shepherd required by Items 401(b), (d) and (e) of Regulation S-K are hereby incorporated by reference from the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 27, 2012. A press release regarding the leadership appointments is attached.