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Barker Minerals Ltd., an exploration stage company, acquires, explores for, and evaluates mineral properties in Canada. The company explores for gold, silver, platinum, palladium, copper, lead, zinc, diamond, platinum group, molybdenum, and sulphide deposits. It has interests in the mineral claims in the Goose Range area of the Cariboo mining district comprising approximately 51,451 hectares in east central British Columbia. The company was founded in 1993 and is headquartered in Prince George, Canada.

Castellum, Inc. provides services in the areas of cybersecurity, information technology, electronic and information warfare, and information operations. Its services include intelligence analysis, software development, software engineering, program management, strategic and mission planning, information assurance, cybersecurity and policy support, data analytics, and model based systems engineering services. It serves customers in the federal government, financial services, healthcare, and other data application sectors. The company is based in Bethesda, Maryland.

Golden Dawn Minerals Inc. engages in the acquisition, exploration, and development of mineral properties in Canada. The company explores for gold, silver, and copper deposits. It holds 100% interest in the Greenwood Precious Metals project consisting of the Lexington and Golden Crown properties located in the Greenwood mining division of south-central British Columbia, Canada; and Boundary Falls property consisting of three mineral claims and the May Mac mine situated in British Columbia, Canada. The company also has an interest in the Iron Ridge property located in Creston, British Columbia; and holds an option to acquire J&L property situated in Revelstoke Mining Division, British Columbia. Golden Dawn Minerals Inc. was incorporated in 2004 and is based in Vancouver, Canada.

Pure Technologies Ltd. (Pure) is engaged in the development and application of technologies for inspection, monitoring and management of physical infrastructure, including water and hydrocarbon pipelines, buildings and bridges. The Company's segments include Americas, International and PureHM. Its technologies include SoundPrint acoustic monitoring technology, which is used to provide continuous remote health monitoring of water and wastewater pipelines, bridges, buildings, parking structures and other infrastructure components; SoundPrint Acoustic Fibre-Optic (AFO) technology, which is a fiber-optic monitoring system used for structural monitoring of prestressed concrete water and wastewater pipelines, and Armadillo Tracks Remote Tracking Units, which is a PureHM technology and an Internet based pig tracking and pipeline monitoring system that integrates acoustic geophones, magnetic sensors and other technologies to monitor pipelines for pig passages and environmental changes.

Select Sands Corp., together with its subsidiaries, engages in quarrying and producing silica sand. The company holds interest in the Sandtown project located in northeast Arkansas, the United States. It sells its products to industrial and energy customers. The company was formerly known as La Ronge Gold Corp. and changed its name to Select Sands Corp. in November 2014. Select Sands Corp. was incorporated in 2006 and is based in Houston, Texas.