Americas Silver is engaged in the acquisition, exploration, development and exploitation of mineral resource properties in Mexico and the United States. Co. explores for gold, silver, zinc, copper, and lead deposits. The 100% owned Nuestra Senora Mine in the Cosala District of Sinaloa State, Mexico, has flexible mining methods and diversified metal production. It has a mechanized underground operation and a processing facility permitted for expansion to 4,000 tonnes per day. In Idaho, Co. operates the 100%-owned producing Galena Complex which was added following the business combination with U.S. Silver. The Galena Complex has recorded production of over 220 million ounces of silver.

Baker Hughes is an energy technology company. The company's segments are: Oilfield Services, which provides products and services for onshore and offshore operations ranging from drilling, evaluation, completion, production, and intervention; Oilfield Equipment, which provides products and services for the subsea, offshore surface and onshore operating environments; Turbomachinery and Processing Solutions, which provides equipment and related services for mechanical-drive, compression and power-generation applications; and Digital Solutions, which includes condition monitoring, industrial controls, non-destructive technologies, measurement, sensing, and pipeline solutions.

Coeur Mining is a gold and silver producer, as well as a zinc and lead producer, with mines located in the U.S., Canada, Mexico, and exploration projects in North America. The company operates the Palmarejo complex, and the Rochester, Kensington, Wharf and Silvertip mines. The company's dore, as well as the concentrate product produced by the Wharf mine, is refined into gold and silver bullion and then sells to multi-national banks, bullion trading houses, and refiners across the globe. The company's gold concentrate products from the Kensington mine and the zinc and lead concentrates from the Silvertip mine are sold under a variety of agreements with smelters and traders.

Core Laboratories is a holding company. Co. is a provider of reservoir description, production enhancement and reservoir management services to the oil and gas industry. Co. has three segments: reservoir description, which encompasses the characterization of petroleum reservoir rock, fluid and gas samples; production enhancement, which includes products and services relating to reservoir well completions, perforations, stimulations and production; and reservoir management, which combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from its clients' reservoirs.

First Majestic Silver is engaged in the business of silver production, development, exploration, and acquisition of mineral properties with a focus on silver production in Mexico.

Fortuna Silver Mines is engaged in the mining, exploration, extraction and processing of silver, gold and zinc mine properties in southern Peru and Mexico.

Freeport-McMoRan is a holding company. Through its subsidiaries, the company is a mining company. The company operates assets with proven and probable reserves of copper, gold and molybdenum, and the company is a publicly traded copper producer. The company's portfolio of assets includes the Grasberg minerals district in Indonesia, copper and gold deposits; and mining operations in North America and South America, including the Morenci minerals district in Arizona and the Cerro Verde operation in Peru. The company has organized its mining operations into four primary divisions: North America copper mines, South America mining, Indonesia mining and Molybdenum mines.

Halliburton assists its customers throughout the lifecycle of the reservoir, from locating hydrocarbons and managing geological data, to drilling and formation evaluation, well construction and completion and optimizing production throughout the life of the asset. The company's segments are: Completion and Production, which delivers cementing, stimulation, intervention, pressure control, specialty chemicals, artificial lift and completion products and services; and Drilling and Evaluation, which provides field and reservoir modeling, drilling, evaluation and wellbore placement solutions that enable customers to model, measure, drill and optimize their well construction activities.

Hecla Mining and its subsidiaries discover, acquire and develop mines and other mineral interests and produce and market concentrates, carbon material and dore containing silver, gold, lead and zinc. The company has five units: the Greens Creek, Lucky Friday, Casa Berardi, San Sebastian and Nevada Operations units. The company produces zinc, lead and bulk flotation concentrates at its Greens Creek unit and lead and zinc flotation concentrates at its Lucky Friday unit, each of which the company sells to custom smelters and metal traders on contract. The company also produces unrefined gold and silver bullion bars (dore), loaded carbon and precipitates at its Casa Berardi, San Sebastian and Nevada Operations units.

National Oilwell Varco is an independent provider of equipment and technology to the upstream oil and gas industry. The company's segments include: Wellbore Technologies, which designs, manufactures, rents, and sells a variety of equipment and technologies used to perform drilling operations; Completion and Production Solutions, which designs, manufactures, and sells equipment and technologies for hydraulic fracture stimulation, well intervention, onshore production, and offshore production; and Rig Technologies, which designs, manufactures and sells land rigs, offshore drilling equipment packages, and drilling rig components that mechanize and automate the drilling process and rig functionality.

Pan American Silver is engaged in the production and sale of silver, gold and other base metals including copper, lead and zinc as well as other related activities, including exploration, extraction, processing, refining and reclamation. Co.'s primary product (silver) is produced in Peru, Mexico, Argentina and Bolivia. Additionally, Co. has project development activities in Peru, Mexico and Argentina, and exploration activities throughout South America and Mexico.

RPC is a holding company for several oilfield services companies. The company provides oilfield services and equipment to oil and gas companies engaged in the exploration, production and development of oil and gas properties throughout the U.S., including the southwest, mid-continent, Gulf of Mexico, Rocky Mountain and Appalachian regions, and in selected international markets. The services provided are: Technical Services, which include pressure pumping, downhole tools, coiled tubing, snubbing, nitrogen, well control, wireline services, and fishing; and Support Services, which include rental tools, oilfield pipe inspection services, well control school and energy personnel international.

Schlumberger provides technology for reservoir characterization, drilling, production and processing to the oil and gas industry. The company has four segments: Reservoir Characterization, which consists of the principal technologies involved in finding and defining hydrocarbon resources; Drilling, which consists of the principal technologies involved in the drilling and positioning of oil and gas wells; Production, which consists of the principal technologies involved in the lifetime production of oil and gas reservoirs; and Cameron, which consists of the principal technologies involved in pressure and flow control for drilling and intervention rigs, oil and gas wells and production facilities.

Silvercorp Metals is engaged in the operation and development of and in the acquisition and exploration for high-grade silver-related mineral properties in the People's Republic of China. The Ying Mining District consists of four mines (SGX, HPG, TLP, and LM) and is Co.'s primary source of production.

Southern Copper is a copper producer. The company's mining, smelting and refining facilities are located in Peru and Mexico and the company conducts exploration activities in those countries and in Argentina, Chile and Ecuador. The company's Peruvian copper operations involve mining, milling and flotation of copper ore to produce copper concentrates and molybdenum concentrates, the smelting of copper concentrates to produce blister and anode copper, and the refining of anode copper to produce copper cathodes. The company's Mexican operations are conducted through its subsidiary, Minera Mexico, S.A. de C.V., which engages primarily in the mining and processing of copper, molybdenum, zinc, silver, gold and lead.

SSR Mining is engaged in the acquisition, exploration, development and operation of silver-dominant resource properties located in the Americas. Co.'s strategic focus is to optimize the production of silver from its Pirquitas mine in Argentina, and to advance other principal development and exploration projects including San Luis in Peru, Diablillos in Argentina, and Pitarrilla and San Agustin in Mexico. In addition to its principal projects, Co. holds a geologically-diverse portfolio of other predominantly silver projects in various stages of exploration.

Western Copper and Gold is an exploration stage company that is engaged in exploration and development of the Casino mineral property located in Yukon, Canada. The Casino property is host to one of the undeveloped porphyry deposits in Canada containing large amounts of gold, copper, and molybdenum in its one billion tonnes of reserves.

Wheaton Precious Metals is engaged in the silver mining business.