TanzaniteOne Mining Limited

TanzaniteOne (a fully owned subsidiary of Richland Resources Limited), employs uniquely experienced Management Staff, each thoroughly qualified to tackle the challenges of mining and marketing premium product. Our key leaders include:

Farai Manyemba – Managing Director, Tanzania

Farai is currently the Country Managing Director of all Tanzanian operations. A Chartered Accountant, Farai joined the Group in 2007 as Financial Manager and has been instrumental in the Groups systems and controls, cost and cash management , reporting and the implementation of various Group business plans.  He is also currently a director in various subsidiaries of the Group. Farai has been involved  with the Southern Africa Mining Industry for over 10 years,  and has previously held positions at Deloitte & Touché, chrome mining giant Zimasco (Pty) Ltd  (Group Accountant and later as Group Audit Manager) and Aquarius Platinum’s ‘Mimosa Platinum Mine’ (Finance Executive).

Mervyn Dettmer - General Manager Sales, Tanzania

Mervyn is responsible for our sales and trading operation in Tanzania. Having joined the company in 2001, Mervyn was responsible for the development of our sort house facility and the introduction/ commissioning of our microsort facility. His hard work has seen our sort house become the most technologically-advanced coloured gemstone sorting facility in the world.

Gavin Pearce - Business Development & Research

Gavin’s areas of focus are Sightholder Development and Management. He brings 18 years of experience to TanzaniteOne and has previously managed mine-to-market value-add supply chain operations in the Diamond and Jewellery industries.

Godfrey Temba – Finance Director 

Godfrey is a  B.COM graduate from University of Dar-es-salaam. Mr Temba first joined TanzaniteOne in 2011 as a ACCA- and CPA-qualified Finance Manager , and was promoted to Financial Director of Tanzanian Operations in 2013. His key strengths include providing financial expertise to guide high-level investment and business decision making; and implementing the necessary financial frameworks that govern subsidiaries.  Godfrey previously worked in KPMG and Alliance One Tobacco.

Linda Kennedy -  Marketing & Online Sales Manager

Linda is responsible for  the groups marketing and the online jewellery boutique - TanzaniteOne Online.  Linda holds a degree in Marketing Communications and has completed post graduate studies in Advertising. Linda was previously employed in Thailand, working in fine jewellery manufacturing and gem trading. She is also a Graduate Gemmologist of the Gemmological Institute of America and NCJV Registered Jewellery Valuer. 

Amos Chakupewa Ntagarugwa - Chief Geologist

Amos oversees a company's geological surveying, mine exploration and industrial production activities. He holds a BSc in Geology from the University of Dar es Salaam. Prior to his position with TanzaniteOne he has held Exploration Geologist and Project Geologist positions with  Iamgold Corporation . Amos is the author of numerous papers and reports,  including the geology of Tsavo West (Kenya), Geology of Longido ruby deposit, Geology of the Magara alexandrite/emerald deposit, geology of the Lemshuku tsavorite deposit and several on the Merelani tanzanite deposits.

Khalfani Mbwambo- Finance and Administration Manager

Khalfani is a Bachelor of Accounting & Finance (BAF) graduate from Mzumbe University, Tanzania. He is a Chartered Accountant and a member of Association of Certified Chartered Accountants (ACCA). He has over 6 years’ experience working in audit, accounting and finance. Before joining TanzaniteOne, Khalfani worked with PwC and Shelys Pharmaceuticals Ltd.

Damian Masalla - Mine Manager

Damian is a professional Mine Engineer and is registered with the Engineers Registration Board of Tanzania. After graduating from the University of Zambia with B.Sc. Engineering (Mining engineering), Damian worked with Zambia Consolidated Copper Mines before completing a post-graduate course in ground vibration and rock mechanics in Sweden. He has been with TanzaniteOne since 2000.

Dotto Medard

Dotto has a Masters of Business Administration in Corporate Management from Mzumbe University , a Post Graduate Diploma in Project Management from Tanzania Institute of Project Management and a Degree in Environmental Management from Makerere University in Uganda . After implementing the Environmental Management System and standards at site, he now manages Corporate Affairs. Key responsibilities include the application of Corporate Governance , Corporate Social Responsibility and effective and ethical Stakeholder relationship management. Previously heworked with Barrick Gold at Tulawaka Gold Mine in Bihalamulo. He has more than 8 years experience working in different departments in the Mining Industry in Tanzania.

Jean Harris - Sort House Manager

Jean is a registered gemmologist with the International School of Gemmology (ISG). He joined TanzaniteOne in 2006 and has been largely involved in implementing systems that add value to our processing procedure inside the sort house.

Johnson Mwani - Human Resources Manager

Johnson was appointed Human Resources Manager at TanzaniteOne in April 2011, having worked in the HR department since 2006. He has held various managerial positions at Tanzania Wood Industries Corporation; Sao Hill Sawmills Limited, Tembo Chipboards Limited and TWICO’s head office where he worked for 20 years. He has post-graduate qualifications in Management and Accounting from the University of Agricultural Sciences Uppsala, Sweden and the Institute of Finance Management Dar es Salaam, Tanzania.

Wenseslaus Obilla W -  Engineering Manager

Holding a Graduate Bachelor Degree in Mechanical Engineering from Mbeya Institute of Science and Technology (MIST),  Mr Wenseslaus joined TanznaiteOne after a successful term as Project Engineer with Taningra Ltd , East Africa’s  leading  mechanical engineering company  for the petroleum and gas industry and Engineer with Scania AB, Tanzania .  Mr Wenseslaus is also registered with Engineering Registration Board (ERB) as Graduate Engineer in Mechanical Engineering.

Wolfgang R. Gumbo -  Security Manager 

Wolfgang R. Gumbo is a graduate  of Makerere University Kampala with a BA (hons) Degree. Mr Gumbo  previously worked with the Tanzania Police Force for 32 years, 17 of them in senior positions.

Douglas Swartz - HSE and Training Manager

Douglas has over 25 years operational and management experience in the mining industry, including nine years with De Beers Consolidated Mines as a Senior Training Officer - Mining. He currently manages the Health, Safety, Environmental and Training Department at TanzaniteOne Mining Limited. Since joining the company in 2008, Douglas has been instrumental in developing our Training and Certification Program.

Adam Said – IT Manager

Adam is responsible for implementing and maintaining the organization's technology infrastructure. He is a graduate of the University of Dar-Es-Salaam as a Telecommunications Engineer. He has over ten years experience in his field, including three years as  IT Manager with the Association of Tanzania Tobacco Traders . 

Ernest Mtawali - Civils and Construction Manager

Ernest has completed his Diploma in Mining through the Heilebury School of Mines, Canada and also has a Post Graduate Diploma in Production Management. Over a 12 year period, Ernest served in various roles at Williams Diamonds Limited. Positions included Heavy Media Operator, Pits Superintendent and Plant Foreman. He joined AFGEM (now TanzaniteOne Mining Limited) in July 1999 to oversee civil engineering and construction.

Baraka Kawiche - House Keeping Manager

Prior to joining TanzaniteOne Mining Limited in March 2007, Baraka was employed as an Operation and Declaration Officer at Multechnical Investments Ltd, a leading logistics services firm in Arusha. He holds a degree in Business Administration from the Tumaini University.