Martin Marietta Materials Back to Search Martin Marietta Materials Categories Construction/Aggregates PO Box 832 , Rock Hill , SC , 29731 991 Hawkfield Rd , Rock Hill , SC , 29730 (803) 324-3181 Send Email http://www.martinmarietta.com/ Contacts Primary Philip Wright Share × Print Email Facebook LinkedIn X Pinterest Powered By GrowthZone Tell a friend about Martin Marietta MaterialsSend to FriendCancel