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Aurania Resources Ltd., a junior exploration mining company, engages in the identification, evaluation, acquisition, and exploration of mineral properties in Ecuador and Peru. The company explores for gold, silver, copper, and other precious metal deposits. Its flagship project is the 100% owned Lost Cities Cutucu project comprises 42 mineral exploration concessions covering an area of approximately 207,764 hectares located in southeastern Ecuador. The company was formerly known as Urania Resources Ltd. and changed its name to Aurania Resources Ltd. in March 2012. Aurania Resources Ltd. was founded in 2001 and is headquartered in Toronto, Canada.

Giga-tronics Incorporated designs, manufactures, and distributes specialized precision electronic equipment in North America, Europe, the Middle East, and internationally. It operates through three segments: Radio Frequency (RF) Solutions, Power Electronics & Displays, and Precision Electronic Solutions. The company offers RF and microwave filters, diplexers, multiplexers, detectors, switch filters, integrated assemblies, and detector logarithmic video amplifiers for military and telecommunications applications; power conversion products, power supplies, uninterruptible power supplies, and distribution solutions, as well as frequency converters for naval applications; and power electronics and display solutions for mission critical rail, industrial, medical, telecoms, and military applications. It also provides precision electronic solutions, including custom computer-based automated test equipment and turnkey systems for military, medical, and industrial markets. In addition, the company offers functional test products, as well as integrates its test products along with third-party hardware and software to deliver solutions for evaluating and validating radar and electronic warfare product performance, and training personnel. Giga-tronics Incorporated is headquartered in Scottsdale, Arizona. Giga-tronics Incorporated is a subsidiary of Ault Alliance, Inc.

Columbia Large Cap Growth ETF, formerly Columbia Growth Equity Strategy Fund, seeks long-term capital appreciation by investing at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of companies. The Fund may invest in companies of any market capitalization and in any industry. It expects to invest primarily in the securities of United States companies, and may also invest in United States securities tied economically to foreign investments, such as American Depositary Receipts. It invests in various sectors, such as information technology, industrials, healthcare, energy, financials, consumer staples, financials, materials and consumer discretionary. Columbia Management Investment Advisers, LLC serves as the manager of the Fund.