MLM vs SND

Martin Marietta Materials Inc.

Martin Marietta Materials, Inc., a natural resource-based building materials company, supplies aggregates and heavy-side building materials to the construction industry in the United States and internationally. It offers crushed stone, sand, and gravel products; ready mixed concrete and asphalt; paving products and services; and Portland and specialty cement used in the infrastructure projects, and nonresidential and residential construction markets, as well as in the railroad, agricultural, utility, and environmental industries. The company also manufactures and markets magnesia-based chemical products for the industrial, agricultural, and environmental applications; and dolomitic lime primarily for customers in the steel and mining industries. Its chemical products are used in flame retardants, wastewater treatment, pulp and paper production, and other environmental applications. The company was founded in 1939 and is headquartered in Raleigh, North Carolina.

Smart Sand Inc.

Smart Sand, Inc., an integrated frac sand supply and services company, engages in the excavation, processing, and sale of sands or proppant for use in hydraulic fracturing operations in the oil and gas industry in the United States. It also operates SmartSystems, a wellsite proppant storage solution; and offers logistics services. The company sells its products primarily to oil and natural gas exploration and production companies, and oilfield service companies. As of December 31, 2020, it had approximately 315 million tons of proven recoverable sand reserves. Smart Sand, Inc. was incorporated in 2011 and is headquartered in The Woodlands, Texas.