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Martin Marietta is a leading US producer of construction aggregates, having produced roughly 200 million tons in 2025. Its aggregate reserves represent approximately 85 years of supply at 2025 production levels. Over the past several years, the company has increased its exposure to aggregates while reducing its presence in cement and downstream businesses such as concrete and asphalt. More recently, Martin Marietta expanded into an aggregate-adjacent business through its acquisition of Lhoist North America, the largest US producer of lime. The company operates across 28 states, with smaller operations in Canada and the Bahamas.

BHP Group Limited is a global resources company primarily involved in the exploration, production, and processing of minerals. The company operates in the natural resources industry, with significant activities in iron ore, metallurgical coal, and copper mining. BHP's operations are geographically diverse, with major assets located in Australia, North America, and South America. Its headquarters are situated in Melbourne, Australia. The company has a strategic focus on sustainable mining practices and technological innovation to enhance productivity and environmental stewardship. BHP's competitive strengths include its scale of operations, diversified asset portfolio, and strong supply chain network.