Ruben Shiffman

Ruben Shiffman is the founder of Greenland Resources, Inc., founded in 2008, serving as Executive Chairman & President.
Dr. Shiffman is the founder of Calvista Gold Corp., founded in 2010, serving as Chairman from 2011 to 2012.
Dr. Shiffman was the founder of Shiffoil, Inc., founded in 2015, serving as Chairman.
Dr. Shiffman currently serves as Governor-International Board at Tel-Aviv University.
Former positions include Vice Chairman at Rockcliff Metals Corp.
in 2012, Derivatives Director at The Bank of Nova Scotia from 1999 to 2002, Managing Director-Emerging Markets at Scotia Capital, Inc. from 2005 to 2009, VP, Director-Latin America & Caribbean at TD Securities, Inc. from 2002 to 2005, Director-Securities Bureau at Comisión Nacional Bancaria y de Valores from 1994 to 1999, Director at Highvista Gold, Inc. from 2018 to 2019, Director at Greenhawk Resources, Inc. in 2021, and Managing Partner at Norvista Resources Corp.
Education includes a doctorate from Universidad Nacional Autónoma de México, undergraduate and MBA degrees from Universidad de Las Américas, and a doctorate from Rotman School of Management.