US: Martin Marietta Materials has elected two new directors to its board. John J Koraleski, former Chairman of the Board of Directors and CEO of Union Pacific Corporation, was elected to Martin Marietta's Board of Directors on 15 August 2016. Koraleski, aged 65 years, also served as Executive Chairman of the Board of Directors for Union Pacific from February 2015 until his retirement in September 2015. Koraleski will serve on Martin Marietta's Audit Committee, Management Development and Compensation Committee, and Executive Committee.

At its Annual Meeting of Shareholders in May 2016, Donald W Slager was elected to Martin Marietta's Board of Directors. Slager, aged 54 years, is President and CEO of Republic Services, as well as a member of its Board of Directors. Slager will serve on Martin Marietta's Finance Committee and Ethics, Environment, Safety and Health Committee.

The two new directors fill the seats previously held by Frank H Menaker, Jr and Richard A Vinroot, both of whom reached the mandatory retirement age provided in Martin Marietta's bylaws. They were not eligible for election at the 2016 Annual Meeting of Shareholders and retired from the Board after 23 and 20 years of service to the company, respectively.

Martin Marietta's 10-member Board of Directors now consists of nine outside directors.