Nickel Sulphide Exploration
Experienced Management Team
Nickel - essential to green energy


David Sumich

Non-Executive Chairman

  • Mining Executive with over 25 years’ experience in the mining industry, including 15 years as Managing Director and Chairman of ASX listed resources companies.
  • Led multiple successful IPO’s and capital raisings.
  • Experienced director of exploration and development programmes throughout multiple African jurisdictions.
Scott Reid

Non-Executive Director

  • Honorary Consul for Australia at Australian Consulate – Madagascar, since 2016
  • Executive Director – The American Chamber of Commerce in Madagascar, since 2014
  • Over 30 years experience in the exploration, development and mining finance sectors.
Colin Locke

Non-Executive Director

  • 30 years’ experience in business management, mining and financial services.
  • Directly involved in capital raisings, and/or mineral exploration expeditions in Australia and multiple overseas jurisdiction as a director or corporate advisor.

Management Team

Richared Hornsey

Consulting Geologist

Since 1990, has worked for major and junior mining companies in Au, Ni & PGE exploration and mining throughout Africa, Australia, Brazil, the US and Alaska.  He is a recognised Ni-sulphide expert having worked at the Nkomati nickel mine, in the East African Ni-belt, the Fraser Range and Brazil. Richard completed his M.Sc. Geology (cum laude) at Nkomati Nickel Mine.

Matthew McCreesh

Project Geologist

Matthew holds a Ph.D. in Geology.  He worked for Platinum Group Metals on the Waterberg PGE-Ni-Cu exploration project (Bushveld Complex Northern Limb) prior to joining Umbono in 2018. Matthew completed his Ph.D. on the geology and mineralisation of the Waterberg Project, and his experience in Ni-Cu-PGE mineralisation mechanisms makes him a key member of the exploration team.

Richard Montjoie

Technical Manager

Richard holds an M.Sc. in Economic Geology from the University of Witwatersrand and has 20 years experience in greenfield and brownfield Ni-PGE exploration programs in Canada and South Africa. Richard was Project Manager for the Lesego Platinum project, advancing from discovery to bankable feasibility study with SAMREC compliant resource of 50 Moz PGE.

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David Sumich

Non-Executive Chairman

Colin Locke

Non-Executive Director