TSX.V: ASTR  (OTCQB: ATEPF ()  |  FSE: S3I () ​ 


Astra Exploration
Management Team

Brian Miller

CEO & Director

Brian began working in exploration and mining in 2005 where he began his career in operations, logistics and project management. His background in business & finance provides a well-rounded acumen.  He was formerly CFO and VP of Business Development at Kiska Metals Corp, where his experience included operations, business development, asset valuation, capital markets and M&A.


Exploration Director

Diego is a globally-recognized Low Sulphidation Epithermal (LSE) expert with extensive field and research experience in Chilean and Argentinian deposits. Credited with discovery of the Pingüino deposit in Santa Cruz, Argentina, his previous roles include Senior Technical Advisor for Argentex Mining Corp, and VP Exploration at Austral Gold. Diego has provided consulting services to more than 25 mining companies.

Mahesh Liyanage


Mahesh is a Chartered Professional Accountant with over 20 years of experience across diverse industries. He is the former CFO of Orogen Royalties and Mirasol Resources and is currently CFO for Vizsla Silver Corp. He owns a full-service accounting firm where he provides accounting and CFO services to multiple public companies.

Roberto Alarcon Bittner

VP & Country Manager, Chile

Mr. Alarcon has over 30 years combined experience in BusDev, legal and land with mining and exploration companies in the Americas and Europe, including over 15 years at Yamana/Meridian gold and over 12 years at Homestake Mining Company.  His previous positions include VP Legal & Land – South America, VP & Senior Director – New Ventures, and VP, Country Manager – Chile.

Sheryl Dhillon

Corporate Secretary

Ms. Dhillon is a highly experienced corporate secretary with over fifteen years of experience. She has extensive knowledge of corporate governance, as well as strong management skills and excellent corporate communications. Ms. Dhillon acts as Corporate Secretary for several TSXV and CSE listed companies.

Astra Exploration
Directors & Advisors

Dr. Stuart Smith

Technical Advisor

With over 30 years in exploration, Stuart has extensive experience in global exploration. Senior roles at several companies include: Teck, Oxiana-Oz Minerals, Tigers Realm and EMR companies. Former Teck Resources, Specialist – Global Copper, based in Santiago.

Darcy Marud


Darcy led exploration teams involved in the El Peñón and Mercedes mine discoveries. He has over 35 years of experience in mining and exploration, including executive roles at Meridian Gold and Yamana Gold. He is currently CEO of Western Exploration in Nevada.

David Caulfield


Over 35 years of experience in the exploration industry. Co-founder of Equity Engineering, Rimfire Minerals, and C3 Alliance. Dave has a deep professional network and has served in multiple volunteer capacities including President of AME BC and Vice-Chair of Geoscience BC.

Charles Funk


Charles has over 13 years of experience in the mining industry with junior exploration and major mining companies. He is currently Technical Director at Vizsla Silver Corp where he led the discovery of the Napoleon prospect at the Panuco gold-silver project and is also the CEO of Heliostar Metals.

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