Where can I find more information about Martin Marietta?

For more information, visit www.martinmarietta.com or www.magnesiaspecialties.com. CalPortland Company is a major producer of cement, ready mixed concrete, aggregates, concrete products and asphalt in the western United States and Canada.

What makes Martin Marietta a good company?

At Martin Marietta, we are dedicated to doing business the right way. Our employees hold themselves, and each other, to the utmost standard of integrity. Our business ethics allow us to maintain our strong commitment to honesty, integrity and accountability.

When did Martin Marietta become a company?

In 1959, the company was purchased by the American-Marietta Corporation, which merged with the Glenn L. Martin Company a year later to form the Martin Marietta Corporation. In 1971, Martin Marietta acquired Harvey Aluminum, a company which made aluminum oxide, aluminum ingot and aircraft grade aluminum sheet.