The United States construction industry is anchored in an intricate supply chain encompassing locally sourced raw materials, international trade, and global market dynamics. While many essential building components—such as aggregates, cement, and steel—are produced domestically, the supply chain also heavily relies on strategic imports. This article presents an academic yet accessible overview of which construction materials originate in the U.S., which are exported, and which are imported—and why these trade patterns matter for industry resilience and policymaking.
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