Mark Sumner is the founder and managing director of Kiwanda Group LLC, a US-based investment and venture capital business focused on mining and exploration projects in South America. Mr Sumner has over 10 years' experience financing and developing mineral projects including coal, phosphate rock, copper, gold and silver, primarily in South America. Prior to founding Kiwanda Group in 2008, Mr Sumner was an investment specialist at Madison Avenue Financial Group, a private wealth boutique in Portland, Oregon