Management Team

Thomas UllrichChief Executive Officer, Director

Mr. Ullrich has over 20 years of experience in mineral exploration and geoscience. Before joining Aston Bay in 2016, Mr. Ullrich was Chief Geologist North America for Antofagasta Minerals plc, investigating the region’s copper potential through extensive property evaluations and management of drill programs in Alaska and Canada. Prior to Antofagasta, he was Senior Geologist for Almaden Minerals, where he managed the drill program for the team’s discovery of the Ixtaca Ag-Au deposit in Mexico. Mr. Ullrich also established the Ar-Ar geochronology lab at the University of British Columbia and studied the Candelaria Cu-Au mine, Chile, while at Queen’s University. Mr. Ullrich is also on the Technical Advisory Board for CopperBank Resources.

David Broughton Chief Geologist, Storm and Seal Projects

Dr. Broughton is an acknowledged expert in sediment-hosted copper deposits with over 30 years’ experience in mineral exploration. He was Geology Manager for Cyprus Amax’s Kansanshi pre-feasibility project, now Africa’s largest copper mine, and part of AMIRA P544’s research team focused on the Zambian Copperbelt. From 2008 to 2016 he was Executive Vice President Exploration for Ivanplats, now Ivanhoe Mines. During his tenure, the world-class Kamoa Cu (Central African Copperbelt) and Flatreef PGE-Ni-Cu-Au (Bushveld Complex) deposits were discovered. He was co-awarded PDAC’s 2015 Thayer Lindsley Award for International Mineral Discovery (Kamoa), and AME BC’s 2016 Colin Spence Award for Excellence in Global Mineral Exploration (Flatreef discovery). Dr. Broughton is currently a Senior Advisor for Ivanhoe Mines. Dr. Broughton is a Fellow of the Society of Economic Geologists and a Fellow of the Geological Association of Canada. He received a BSc. (Hons) and an MSc. in Earth Sciences from the University of Waterloo and a Ph.D. in Geology from the Colorado School of Mines.



Dwight Walker – Chief Financial Officer

Mr. Walker has over 30 years’ experience in finance and administration, including the most recent 10 years within the mining sector. He has served as the Chief Financial Officer of several public companies.  Mr. Walker is the former CFO of ECU Silver Mining Inc., an emerging Mexico-based silver producer that had 500 employees and two operating mills, and part of the team that sold the company through a plan of arrangement transaction at a value in excess of $300 million.

Mr. Walker is a CPA, CGA and holds a Bachelor of Mathematics degree from the University of Waterloo.




Sofia Harquail – IR and Corporate Development

Ms. Harquail has experience in both the private and public sectors of the mining industry. Before joining Aston Bay, Ms. Harquail has worked as a consultant for the Prospectors and Developers Association of Canada and for exempt market dealer Red Cloud Klondike Strike Inc. Ms. Harquail holds an M.A. from the University of Uppsala in Sweden and received her CPIR designation from the CIRI/Ivey Investor Relations Program. She also sits on the board of the Young Mining Professionals Toronto and is CSC Certified.

Michael Dufresne – Consultant, Primary Geologist and QP, Director

Mr. Dufresne is the President of Apex Geoscience, an ~60-person geological consultancy. With over 25 years of professional experience in all aspects of project generation, geological interpretation and project management ranging from grassroots exploration projects to feasibility-stage projects. Mr. Dufresne has extensive experience with a wide range of commodities and types of deposits as well as involvement in a number of scientific government studies. Mr. Dufresne has conducted property audits across North America and Australia and authored independent technical reports. His client list has included senior and junior mining companies, and government geological surveys. Mr. Dufresne is a Professional Geologist with the Association of Professional Engineers, Geologists and Geophysicists of Alberta (since 1989). He is also a member of the Canadian Institute of Mining and Metallurgy, Geological Association of Canada, and Association of Exploration Geochemists. Mr. Dufresne obtained his M.Sc. in Economic Geology from the University of Alberta, and a B.Sc. in Geology with a minor in Chemistry, from UNC-Wilmington.

Chris LivingstoneConsulting Field Geologist

Mr. Livingstone has over 6 years of experience in mineral exploration performing a broad range of geological consulting services from grassroots exploration to project management and geological modeling. He has planned and supervised multiple sampling, geophysical and diamond drilling programs in remote areas of northern Canada. Mr. Livingstone has overseen the exploration programs at Aston Bay since 2012 and taken a supervisory role since 2014. Mr. Livingstone is a Professional Geologist with the Association of Professional Engineers and Geoscientists of British Columbia (since 2017). He received his B.Sc. in Earth and Ocean Sciences from the University of British Columbia.

Qualified Person Statement:

Michael Dufresne, M.Sc. P.Geol., Consultant and Chief Geologist of Aston Bay Holdings is the “Qualified Person” as defined by National Instrument 43-101. Mr. Dufresne has supervised the preparation of the technical information contained on this website and materials herein as they relate to the Storm Copper and Seal Zinc projects.

© 2019, Aston Bay Holdings Ltd. All Rights Reserved. Not a solicitation to sell securities. Information herein may contain “forward-looking statements” and is not NI 43-101 compliant.


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