. "8.4E7"^^ . . . . "2.04E9"^^ . "Martin Marietta"@en . "3.25E8"^^ . . . "1993Z"^^ . . "5200"^^ . "Martin Marietta (NYSE: MLM), an American-based company and a member of the S&P 500 Index, is a leading supplier of aggregates and heavy building materials, with operations spanning 36 states, Canada and the Caribbean."@en .