Hudbay

Arizona Sonoran Copper Company is engaged in the development and production of copper, focusing on mineral exploration. The company holds interests in the Cactus Project, situated in Pinal County, Arizona, southeast of the Phoenix metropolitan area. This project is located on private land, underscoring the company's commitment to advancing its operations in a region rich in copper resources.

Rockcliff Metals Corporation is a Canadian resource development and exploration company focused on advancing and consolidating high-grade copper and zinc deposits in the Snow Lake area of Manitoba. The company holds a 51% interest in its flagship Talbot Property and has full ownership of the Tower and Rail properties, among others. Rockcliff is a key landholder in the Flin Flon-Snow Lake greenstone belt, which is known for its rich deposits of copper, zinc, gold, and silver. Its portfolio encompasses over 45,000 hectares and includes eight undeveloped volcanogenic massive sulphide deposits and five lode-gold properties, including the historic Rex-Laguna gold mine. Rockcliff's exploration efforts focus on the discovery of unmined metal deposits, with particular attention to its high-grade copper and historical zinc deposits. The company, founded in 2005 and headquartered in Sudbury, Canada, was previously known as Rockcliff Copper Corporation before adopting its current name in November 2017.

Copper Mountain Mining Corporation is a Canadian mining company that specializes in the exploration and production of copper, gold, and silver deposits. Established in 2006 and headquartered in Vancouver, the company’s flagship asset is the Copper Mountain mine, which encompasses a significant land area of 6,702.1 hectares near Princeton, British Columbia. The mine consists of 135 crown granted mineral claims, 176 located mineral claims, 15 mining leases, and 12 fee simple properties. Copper Mountain Mining focuses on project development and efficient operations while maintaining a diverse portfolio that includes assets in Peru and the United States. The company's strategic approach emphasizes low-risk operations in mining-friendly jurisdictions, enabling the management team to effectively finance, develop, and operate sustainable, cash-generating mining projects.

Mason Resources Corp. is a Canadian exploration stage company focused on acquiring, exploring, and evaluating mineral properties in the United States, particularly targeting copper. The company's primary asset is the Ann Mason copper-molybdenum porphyry project located in the Yerington district of Nevada, which features significant deposits and is recognized as one of the largest undeveloped copper resources in North America. The Ann Mason Project is at the preliminary economic assessment stage and includes multiple prospective targets. Additionally, Mason Resources owns the Lordsburg copper-gold porphyry property in southwest New Mexico, an earlier-stage project situated in a historically rich mining area. The company benefits from strong infrastructure, year-round access, and community support in its operational region, contributing to its strategic advantages in mineral exploration and development. Mason Resources was incorporated in 2017 and is headquartered in Vancouver, Canada.

Augusta Resource Corporation, a development stage company, is engaged in the acquisition, exploration, and development.

Norsemont Mining, Inc. is engaged in the acquisition, exploration, and development of mineral deposits, with a focus on copper. The company provides services that facilitate the identification and assessment of valuable mineral resources. Through its mining operations, Norsemont aims to enhance its portfolio by discovering and developing new copper assets, contributing to the broader mining sector.

Lundin Mining Corporation is a diversified base metals mining company with operations in Portugal, Sweden, and Spain. The company produces copper, zinc, lead, and nickel and also holds a 24% equity stake in the Tenke Fungurume copper/cobalt mine in the Democratic Republic of Congo and the Kokkola cobalt refinery in Finland. Lundin Mining Corporation focuses on mining and refining base metals to meet global demand for these essential materials.