Our mission is to end the use of mercury in artisanal and small-scale gold mining

We envision a cleaner, healthier, and more economically thriving world for small-scale artisanal miners and their communities around the globe.


Translates to rock in Swahili. When miners find gold-rich quartz vein, they often exclaim "Mwamba" to celebrate the discovery of their next dig.


  • Thomas Cornew

    Co-Founder & CEO
  • Samwel Bahebe

    Samwel Bahebe

    Co-Founder & Managing Director (Tanzania)
  • Eduard Cornew

    Co-Founder & President
  • Tony Bainbridge

    Mining Director
  • Mac Jackson

    Exploration Director
  • Jeffrey Smith

    Chief Marketing Officer
  • Joe Markunas

    Chief Financial Officer
  • Charles Mnguto

  • Bart Mkinga



  • Michelle Ash

    Michelle Ash

    Former Chief Innovation Officer at Barrick Gold, COO of Acacia Mining, and current Chair of Global Mining Guidelines Group; Michelle brings first-hand experience operating the largest mines in Tanzania.
  • Damien Bonaventure

    Damian has 7+ years of experience as a Mining and Planning Engineer for Acacia’s Buswagi Gold Mine, the single largest open-pit mining operation in Tanzania. Damian provides Mwamba with strategic planning and personnel placement assistance.
  • Ezekiel Bahebe

    Ezekiel spent the majority of his career as a public servant in the Tanzanian government. Today he is mayor of Mwanza, the largest commercial center in Tanzania's Lake Victoria gold fields, and owns several businesses including a tax and auditing firm specialized in mining, a clearing house, and a civil-infrastructure construction company.
  • Jim Bickle

    Jim advises Mwamba on capital markets and managerial best practice. He was appointed to his current post as Chairman of Redwood Group International, a full service merchant bank advisory firm, in 2007. Between 2007 and 2013 he served as Director of gold mining company Mongolia Resource Corporation, listing the company on the ASX.

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