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Vulcan Materials is the largest producer of construction aggregates in the US. The company produced around 228 million tons of aggregates in 2025 and has 16.6 billion tons of proven and probable reserves, equivalent to roughly 83 years of supply at current production levels. Over the past several years, Vulcan has increasingly focused its portfolio on aggregates while reducing its exposure to downstream businesses such as ready-mix concrete and asphalt. The company operates across 23 US states, with additional operations in Mexico.

Linde is the largest industrial gas supplier in the world, with operations in over 100 countries. The firm's main products are atmospheric gases (including oxygen, nitrogen, and argon) and process gases (including hydrogen, carbon dioxide, and helium), as well as equipment used in industrial gas production. Linde serves a wide variety of end markets, including chemicals, manufacturing, healthcare, and steelmaking. Linde generated approximately $34 billion in revenue in 2025.