Martin Marietta Materials Inc
Martin Marietta Materials, Inc. is a leading supplier of aggregates products
(crushed stone, sand, and gravel) used for the construction of infrastructure,
nonresidential, and residential projects. Aggregates products are also used
for railroad ballast and in agricultural, utility and environmental applications.
The Company’s Aggregates business consists primarily of mining, processing,
and selling granite, limestone, sand and gravel. The Aggregates business also
includes aggregates-related downstream product lines (including its heavy building
materials such as asphalt products, ready mixed concrete, and road paving construction
services). The Company is also a leading supplier of cement, ready mixed concrete,
and asphalt and paving services in some regions where being able to supply a
full range of products is important for customer service. The Company’s
Cement business produces Portland and specialty cements. The Company also has
a Magnesia Specialties business that manufactures and markets magnesia-based
chemical products used in industrial, agricultural, and environmental applications,
and dolomitic lime sold primarily to customers in the steel industry.
2.2% 