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Great Lakes Dredge & Dock Corp is a provider of dredging services in the United States. Dredging involves the enhancement or preservation of the navigability of waterways or the protection of shorelines through the removal or replenishment of soil, sand, or rock. Its project portfolio includes Coastal Restoration, Coastal Protection, Ports and Harbors, International, and Inland Dredging.
Perpetua Resources Corp is focused on the exploration, site restoration, and redevelopment of gold-antimony-silver deposits in the Stibnite-Yellow Pine district of central Idaho that are encompassed by the Stibnite Gold Project. The Project is one of the highest-grade, open-pit gold deposits in the United States and is designed to apply a modern, responsible mining approach to restore an abandoned mine site and produce both gold and the only mined source of antimony in the United States. It has one segment, mineral exploration in the United States.