Contact Us

Cross-functional Management Team

Robert Vallis

President & CEO, Director, MBA, P.Eng

Robert is an accomplished senior mining executive with a 28-year career in the mining sector, working with some of the most successful companies including 23 years with Barrick Gold and Yamana. Rob’s experience spans multiple functional areas including C-Suite leadership, corporate development, M&A, transaction development and execution, mine engineering & operations.

Jeremy Link

VP, Corporate Development, M.Eng., P.Eng

Jeremy has over 20 years of diverse expertise in exploration, mining, and capital markets. He has helped secure more than $200 million for mining ventures. His previous roles include senior positions with gold producers and exploration companies, as well as experience as a sell-side and buy-side mining analyst.

Gary McDonald

Director, MBA, B.Comm.

Gary MacDonald, MBA, B.Comm., is a seasoned mining and capital markets executive with over 30 years of experience spanning mining operations, venture capital, and corporate strategy. He is the President and CEO of American Mining Corporation and the Founder of Goldfunds Canada. Gary has led and advised projects across key jurisdictions including Canada, the U.S., Mexico, Greenland, Europe, and West Africa, with a focus on gold, silver, copper, and diamond assets. His background includes leadership in merchant banking, ESG, and impact investing, and he holds an MBA from Erasmus University and a B.Comm. from UBC.

Yu Cai Huang

CFO and Corporate Secretary, BA, MBA, CPA

Yu Cai Huang is a seasoned finance executive with broad experience in corporate finance, capital markets, and financial strategy, with a strong focus on the mining sector. He has served as CFO for many publicly listed companies and has acted for numerous junior and mid-tier mining companies, providing leadership in financial reporting, budgeting, governance, and capital raising. Yu Cai holds a B.A. in Economics from Shanghai International Studies University and an MBA from the Ivey Business School at Western University.

Colombia Team

Cesar Garcia

Lead Exploration Geologist, M.Sc.

Cesar brings over 19 years of experience in mineral exploration and advancing mining projects across Colombia. He previously served as Senior Geologist at AngloGold Ashanti, where he led exploration and discovered the high-grade Nuevo Chaquiro Cu-Au-(Mo) porphyry—Colombia’s largest copper porphyry deposit. Cesar leads all on-the-ground exploration activities, driving the advancement of the Quinchia project and the broader mid-Cauca porphyry belt.

Luis Felipe

General Manager, M.Sc.

Luis has 15+ years of expertise in environmental engineering and ESG strategy within the mining sector. Formerly with Mineros S.A., he developed and managed ESG and permitting strategies, earning community support and government approvals. With a Master’s in Environmental Engineering and a focus on Mining Law, Luis ensures the Quinchia project aligns with global best practices in sustainability and social responsibility.

Full on-the-Ground Team in Colombia

Cesar and Luis lead a fully staffed technical, ESG, and operational team based in Colombia, providing deep local knowledge, community engagement, and day-to-day execution across all Quinchia project activities.

Technical Advisory Board

Dr. Ruben Padilla

Ph.D., B. Eng. (Geological Engineering)

Dr. Ruben Padilla is a renownd geologist with over 30 years of global mineral exploration experience and is responsible for discovering over 45M Oz’s of gold in Colombia. He played a key role in the discovery of world- class deposits including La Escondida in Chile, the La Colosa mine and Gramalote gold projects in Colombia. At AngloGold Ashanti, he served as Chief Geologist for the Americas and as Country Manager for Colombia and Peru.

He is currently the President and CEO of Sable Resources, leading exploration across Latin America. Dr. Padilla is also the Founder and Chief Geologist of Talisker Exploration and a board member of Millennial Precious Metals Corp.

Rickardo Welyhorsky

P. Eng. — Technical Advisor

Rickardo Welyhorskyis a seasoned mining executive with over 30 years of experience advancing gold projects from exploration through development, construction, and operations. He has held senior leadership roles at Barrick Gold, Pure Gold Mining, Yamana Gold, Detour Gold, and Signature Resources, where he led key initiatives in project design & execution, plant commissioning, operational readiness, and start-up. As Mine General Manager at Pure Gold, he oversaw site operations and construction to first gold pour. At Yamana, he led operational readiness initiatives for the Cerro Moro gold-silver mine. At Detour Gold, he led key areas of the development, construction and operation of a 61,000 tpdgold project valued at $1.6 billion.

Rickardo holds a B.Sc. in Metallurgical Engineering from Laurentian University and is a licensed Professional Engineer. In addition to his gold experience, he most recently served as COO of Avalon Advanced Materials, where he helped raise $63 million and advanced a lithium hydroxide facility study with a projected $4.1 billion NPV.

Siri C. Genik

LL.B. —Technical & ESG Advisor

Siri Genik is a senior executive with over 25 years of international experience in the natural resources and infrastructure sectors, with deep expertise in ESG, stakeholder engagement, governance, and sustainability.

She is the Founder of BRIDGE©, a consulting firm advising boards and project teams on permitting, risk mitigation, and sustainability strategy. Siri has held senior roles at BHP Canada and Glencore, supporting major mining projects in Australia, Malaysia, and New Caledonia. Her recent work includes Indigenous and infrastructure engagement in Panama.

She serves as a Director of PDAC, sitting on the Sustainability, Lands & Regulations, and EDI Committees, and is also a director of Northern Dynasty Minerals (TSX: NDM). Fluent in English, French, and Spanish, and a native of Bogotá, she brings strong regional insight to Tiger Gold.

Ron Halas

P.Eng., B.Eng., GDBA — Technical Advisor

Ron Halas is a senior mining executive with over 30 years of global experience in the development, operation, and advancement of large-scale gold and copper projects across Latin America, West Africa, and Southeast Asia.
He most recently served as COO of Lumina Gold Corp. (TSXV: LUM), where he led the Cangrejos gold-copper project in southern Ecuador—the country’s largest primary gold deposit—through feasibility and permitting milestones, contributing to its C$581 million all-cash acquisition.

Previously, as COO of Global Atomic Corp (TSX: GLO), he played a key role in advancing the Dasa uranium project, from a Preliminary Economic Assessment to mine development within 2.5 years.

Ron holds a Bachelor of Engineering in Mining from McGill University, a Graduate Diploma in Business Administration from Simon Fraser University, and is a Professional Engineer (P. Eng.).

Advisory Board

Sharyn Alexander

M.Sc.,B.Sc.

Sharyn Alexander is a seasoned mining executive with over 20 years of experience in mineral exploration and development. She is the founder of Terra Consulting and currently serves on the board of the Association for Mineral Exploration BC (AME). Sharyn previously served as President of Sun Summit Minerals (TSX.V: SMN) and held technical roles with B2Gold, Barrick Gold, and SRK Consulting. She holds a B.Sc. in Geology from McMaster University, and an M.Sc. in Geology from the University of Toronto.

Juan Ma Uribe

BA, B.B.A.

Juan Ma, an accomplished financial professional, comes from one of Colombia’s oldest and most influential political families, including former Presidents, Cabinet Ministers, and Senators. As Managing Partner of FacilaCapital, he provides financial services to high-net-worth and institutional investors in Latin America. His expertise and connections bolster Tiger Gold’s advancement of
mineral projects in Colombia.

Blake Beecher

Blake Becher, a mining expert specializing in Colombia’s emerald and gold sectors, excels in exploration, mine development, and sustainability. As founder of The Emerald Company, he introduced advanced grading, drone surveying, and tokenization. Blake’s expertise in geology, regulations, and community dynamics will support Tiger Gold in advancing the Quinchia Gold project to production.