Sean Roosen

Sean E.
O.
Roosen is the founder of Osisko Mining Corp., founded in 1982, where the titles held included President, Chief Executive Officer & Director from 2010 to 2014.
Mr. Roosen is the founder of Osisko Development Corp., founded in 2020, holding the titles of Chairman & Chief Executive Officer since 2020.
Mr. Roosen was the founder of OR Royalties, Inc., founded in 2014, serving as Non-Executive Chairman in 2023.
Current jobs include Director at OVI Mining Corp.
and Director at Brett Resources, Inc. since 2010.
Former jobs include Chairman & Chief Executive Officer at Osisko Green Acquisition Ltd. from 2021 to 2023; Chairman at Niogold Mining Corp.
from 2015 to 2016; Non-Executive Chairman at Rio Novo Gold, Inc. from 2010 to 2012; Chairman at Falco Resources Ltd. from 2014 to 2019; Founding Chairman at Condor Energies, Inc. from 2011 to 2019; Founding Chairman at EurAsia Resource Holdings AG; Chairman at Barkerville Gold Mines Ltd. from 2015 to 2019; Chairman-Supervisory Board at EurAsia Holding AG; Director at ValGold Resources Ltd., Unigold, Inc., Stardust Metal Corp., Nevoro, Inc., Nighthawk Gold Corp., Highland Copper Co., Inc., Gold Terra Resource Corp., Bonterra Resources, Inc., Cornish Metals, Inc., Brunswick Exploration, Inc., KGL Resources Ltd. (Canada), Ryan Gold Corp., EurAsia Resource Value SE; Independent Director at Osisko Metals, Inc. from 2011 to 2016; Independent Director at Victoria Gold Corp.
from 2018 to 2021; Independent Director at EMC Gold Corp.
from 2010 to 2014; Independent Director at Dalradian Resources, Inc. from 2010 to 2018; Operations Director at IRT Interconti Trading GmbH in 2003; Operations Manager at Etruscan Resources, Inc.; Chief Operating Officer at Falcon Energy, Inc. Education includes undergraduate studies at Haileybury School of Mines.