THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Martin Marietta Materials, Inc. (MLM)

4/10/2006 Proxy Information

From 1988 until 1995, Marcus C. Bennett served as Vice President and Chief Financial Officer of Martin Marietta Corporation. Mr. Bennett joined Martin Marietta Corporation in 1959.

3/31/2005 Proxy Information

From 1988 until 1995, Marcus C. Bennett served as Vice President and Chief Financial Officer of Martin Marietta Corporation. Mr. Bennett joined Martin Marietta Corporation in 1959.

Mr. Vinroot is a partner in the law firm of Robinson, Bradshaw & Hinson, P.A. located in Charlotte, North Carolina, which provided certain legal services to the Corporation in 2004. Mr. Vinroot did not work on any of the legal matters for the Corporation. The amount of fees paid to Robinson, Bradshaw & Hinson, P.A. for such services was less than $1 million and less than 1% of the firm’s gross revenues for the last fiscal year. Accordingly, the Board determined that Mr. Vinroot’s relationship with the Corporation, directly and as a partner of Robinson, Bradshaw & Hinson, P.A., was not material for purposes of the independence determination.

Frank H. Menaker served as Vice President of Martin Marietta Corporation from 1982 until 1995, and General Counsel of Martin Marietta from 1981 until 1995.

4/1/2004 Proxy Information

Richard Vinroot is a partner in the law firm of Robinson, Bradshaw & Hinson, P.A. located in Charlotte, North Carolina, which provided certain legal services to the Corporation in 2003. Mr. Vinroot did not work on any of the legal matters for the Corporation. The amount of fees paid to Robinson, Bradshaw & Hinson, P.A. for such services was less than $1 million and less than 1% of the firmřs gross revenues for the last fiscal year. Accordingly, the Board determined that Mr. Vinrootřs relationship with the Corporation, directly and as a partner of Robinson, Bradshaw & Hinson, P.A., was not material for purposes of the independence determination.

Frank H. Menaker served as Vice President of Martin Marietta Corporation from 1982 until 1995, and General Counsel of Martin Marietta from 1981 until 1995.

Bobby F. Leonard was Vice President of Human Resources at Martin Marietta Corporation from 1981 until his retirement in March 1995.

Mr. Adamson served as Vice President of Strategic Development for Martin Marietta Corporation from April 1993 until his retirement in January 1995. He was Vice President, Business Development from 1984 until April 1993.

3/27/2003 Proxy Information

Richard A. Vinroot is a partner in the law firm of Robinson, Bradshaw & Hinson, P.A. located in Charlotte, North Carolina, which provided certain legal services to the Corporation in 2002. Mr. Vinroot did not work on any of the legal matters for the Corporation. The amount of fees paid to Robinson, Bradshaw & Hinson, P.A. for such services was less than 1% of the firm’s gross revenues for the last fiscal year.