Roger Kauffman and James R. Ayres have been appointed to the RockStar Resources board of directors.
Kauffman is a mining engineer and former president and chief operating officer of Amax Gold. He was also formerly executive vice president and chief operating officer of Hecla Mining Company, responsible for five metals and 10 industrial mineral operating locations.
Kauffman led the construction of three metals mines in Chile, Russia and Alaska, and his business development experience includes work in Venezuela.
Ayres is president of Alaska Strategies, a private conservation firm providing management services including strategic planning for local governments, businesses and national nonprofits regarding public policy, legislation and media.
During his career, Ayres has held many positions, including chief of staff to the governor of Alaska and executive director of the Exxon Valdez Oil Spill Trustee Council.