"As our exploration activities ramp up, the demands of the Company's finance and operations teams are increasing, and I'm excited to have them join the team and contribute to driving the project forward," Filo's president and CEO Jamie Beck said.
Gibbs previously served as CFO for Josemaria Resources, which was recently purchased by Lundin Mining, Filo noted.
Prior to Josemaria, he served in CFO roles for Africa Oil and Tanganyika Oil, playing a "pivotal role in the sale of the company to Sinopec International Petroleum for $2 billion," the company said.
He was also CFO of Valkyries Petroleum and has held directorship positions with Lundin Gold, since inception in 2014.
Brettschneider also worked for Josemaria, as vice president of technical services.
Filo's share price was C$16.03 (US$12.17) on 1 September. The company had a market capitalisation of $1.96 billion.
Filo is focused on advancing its 100% owned Filo del Sol copper-gold-silver deposit in Chile and Argentina.