Robert Vallis, P.Eng, MBA, Director, President and CEO
Mr. Vallis is a mining executive with a wide breadth of business and technical experience across multiple areas including corporate development, strategy and planning, business/transaction development and execution, project and team management, financial evaluations, enterprise continuous improvement and mine Engineering/operations.  Mr. Vallis most recently was the SVP Corporate Development with Golden Star Resources. Before this, Mr. Vallis was with Yamana Gold as a Business Development executive for nearly nine years working on transactions such as the C$3.9 Billion joint acquisition of Osisko for 50% of Canada’s largest operating gold mine, and the US$395 Million acquisition of Extorre Gold Mines Ltd. for Cerro Morro(now Yamana’s highest grade operating mine).  Prior to Yamana, Mr. Vallis was with Barrick Gold for 15 years in multiple global jurisdictions and roles spanning from global Evaluations & Corporate Development, Capital Projects, Mine Engineering & operations, and global Continuous Improvement.  Most notably, Mr. Vallis worked on the successful US$10.4 Billion acquisition of Placer Dome, a transformative deal for Barrick and one of Canada’s largest mining M&A transactions.  Mr. Vallis holds a Bachelor of Engineering degree with Dalhousie University in Mine Engineering, a Master of Business Administration degree with the University of Toronto’s Rotman School of Management and is a registered Professional Engineer in the Province of Ontario.
Paolo Lostritto, P.Eng, B.AS,
Chair of the Board and Chair of Equity Financing
Mr. Lostritto has an extensive background in mining capital markets and working with companies across the globe since 1997. Paolo has helped assess different companies/projects and helped finance them as they advanced through exploration, development, and production. Some of the companies where Paolo was involved early include: Kirkland Lake Gold, Novagold and Lake Shore Gold in 2004, Romarco Minerals in 2006, Victoria Gold and Volta Resources in 2009. Mr. Lostritto is currently serving on the board of Blue Thunder Mining Corporation, which is focused on gold exploration in Quebec near the recently discovered Nelligan deposit. Paolo is a cofounder and board member of Interstellar Mining Inc which is focused on leveraging a leading Canadian space mining robotics group (Deltion Innovations Ltd.) along with Watts, Griffis, and McOuat Ltd.’s space mining group to develop and produce energy commercially for the rapidly growing space industry. Over his career, Mr. Lostritto was a Director of the Mining Equity Research at National Bank Financial and worked in equity research at Wellington West, Scotia Capital and TD Securities. He served as an Independent Director at Savary Gold Corp. which was sold to SEMAFO in 2019. Mr. Lostritto holds a Bachelor of Applied Science in Geological and Mineral Engineering in Rock Mechanics from the University of Toronto and he is a registered Professional Engineer in the Province of Ontario.
Jonathan Held  CFO, Director
Mr. Held is a chartered accountant with CFO level experience with both private and public companies. Mr. Held has worked with a number of international resource based businesses including those in North America, South America, Eastern Europe and Africa. Mr. Held has been involved in numerous successful public market transactions including Initial Public Offerings, Reverse Takeovers and financings. Mr. Held also has experience in a variety of audit, review and advisory engagements, including reporting services for reporting issuers, corporate tax and foreign structure assessments. Mr. Held holds a Bachelor of Mathematics and Masters of Accounting from University of Waterloo.

Walter Hanych, P.Geo., Head Geologist, Director

Mr. Hanych, Professional Geologist registered in Ontario and Saskatchewan has thirty three years of experience in the exploration industry from grass-roots projects to advanced mine feasibility projects, including corporate structure and financing. Mr. Hanych has a broad range of mineral exploration experience in; gold, base metal, nickel, uranium, PGE, and industrial mineral exploration throughout Canada and internationally. Mr. Hanych has worked or consulted for major and junior companies, including INCO, Falconbridge Nickel, and Copper Fox Metals at their World Class 800+ Mt. Schaft Creek porphyry copper project (Teck Resources/Copper Fox Metals J.V.). Mr. Hanych was involved with the team that initially recognized, the Cote Lake deposit (Iamgold Corporation) as a gold mineralized brecciated intrusive system. Mr. Hanych holds an Honours Bachelor of Science Degree in geology, (1978), from Laurentian University. He is a member of the Professional Geoscientists of Ontario and the Society of Economic Geologists.

Stephen Timms  Director

Mr.Timms is currently an IBM Canada executive and brings 26-years of his expertise in operations, business transformation, change management and finance to the Signature’s Board of Directors. He is an innovative problem solver with broad-based functional expertise in operations, business transformation, finance and channel management. Mr. Timms has a proven ability to successfully analyze an organization’s critical business requirements, lead change, implement best practices, and execute disciplined performance management systems to drive successful business outcomes. In his career with IBM Mr. Timms has participated in numerous executive, management and leadership development courses. Mr. Timms holds a 4-year Bachelor of Commerce degree from the University of Toronto.


Board of Directors
Robert Vallis,, P. Eng.,MBA, Director, President and CEO

Paolo Lostritto, P. Eng.,B.AS., Chair of the Board and Equity Financing Jonathan Held, CPA, CA  CFO, Director

Walter Hanych, P.Geo. Chief Geologist, Director

Stephen Timms  Director



Dr. Dimitrios Kostopoulos

Dr. Scott Jobin-Bevans PhD, P.Geo

John LeLiever Consultant


WeirFoulds LLP


McGovern Hurley Cunningham LLP
Toronto, ON



Dr. Dimitrios Kostopoulos

Dr. Kostopoulos, is a professor of metamorphic petrology and thermodynamics at the National and Kapodistrian University of Athens, Greece, a mineral exploration consultant to Hellenic Mines SA (porphyry Cu-MO-Au, epithermal Au-Ag-Sb and ophiolitic chromitite) and a geopark development consultant to City and Region Planning PC. Dimitri holds an MSc in ore deposits from Laurentian University, Sudbury, and a PhD in igneous geochemistry from the University of Newcastle-upon-Tyne, UK. At Newcastle, he earned his degree working under the supervision of two leading authorities on volcanic geochemistry and Cyprus-type VMS deposits at the time, Professors Julian Pearce and Joe Cann respectively. Prof. Kostopoulos has over 25 years in mineral exploration in SE Europe and NE Africa, has been a Shell UK Research Fellow at the University of Durham, UK, an Overseas Visiting Scholar at the University of Cambridge, UK, and the Project Generation Leader for Eldorado Gold in Greece. Dimitri has been senior scientist in several EU-funded projects, as well as invited researcher, speaker and project evaluator by renowned institutions in Germany, Switzerland, France and the UK.


Dr. Scott Jobin-Bevans PhD, P.Geo. 

Dr. Scott has more than 25 years in worldwide mineral exploration and has public company experience as a director, officer and technical advisor. Scott is currently Co-Founder, Chairman and CEO of Caracle Creek International Consulting. He has expertise in project evaluation and in leading multi-million dollar projects from generative stage through advanced exploration and into development. Dr. Jobin-Bevans is an advisor and member of the board of directors for a number of public and private companies and held the volunteer position of President (2010-2012) of the Prospectors and Developers Association of Canada.

Mr. John LeLiever Consultant

Founder, is a third generation “Prospector” mineral explorationist with over 40 years’ experience in the industry. In the past, he has worked in the remote wilderness of Canada servicing the industry through his contracting companies specializing in surface exploration development to include owning and operating diamond drill rigs. For the last 12-years he has been directly involved in corporate development of exploration stage private and public companies. Mr. Leliever has been responsible for discoveries resulting in significant property acquisitions, including involvement in the now famous Cote Lake acquired by I AM GOLD and Trelawney Mining in consolidating a portion of the lands and NSR’s.  Mr. Lelievers extensive knowledge of the exploration logistics and planning, particularly with remote locations and his corporate background have been the key to his projects success.