With a doctorate in geology, Nellie Mutemeri has been advising companies and governments in Africa on cooperation with artisanal miners for many years. She set up the Mintek Artisanal and Small Scale Mining School and manages the African Secretariat of Communities and Small-scale Mining (CASM). Together with the German Federal Institute for Geosciences and Natural Resources (BGR) and the Rwanda Geology and Mines Authority, she verifies whether Rwandan mining companies have adhered to minimum ethnic and operative requirements within the framework of the joint certified trade chain (CTC) process.

Petra Odingo has more than 30 years' experience of teaching economics to adults. She is primarily responsible for teacher training. In 1991, she took part in UNICEF's Train the Trainer programme, and qualified in business management in 2000. Since 2003, she has also worked as a coordinator in a small-scale mining project, and she became manager of this project in 2008.

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Presentation: Petite échelle en Namibie. Programme de réduction de la pauvreté en milieu rural en faveur des micro, petites et moyennes entreprises en Namibie. By Petra Ondigo
PDF, French, 1.2 MB

Dr Richard Sherrington is a Senior Social Scientist for UK-based social, environmental and engineering consultancy Wardell Armstrong LLP. Prior to joining Wardell Armstrong he was a post-doctoral Fellow at the Department of Social Anthropology and Centre for African Studies at the University of Cambridge, where he still enjoys formal associateship. He is a seasoned socio-economist with fifteen years experience in international development and has extensive research and strategy consultancy experience in the mineral resources sector. Richard has advised clients such as De Beers, Barrick Gold and Rio Tinto on issues relating to ASM, CSR and social change management especially in Africa. Above all, he is interested in developing ways to achieve socially and environmentally sustainable resource extraction which accord equitable wealth and welfare creation for all stakeholders.

Ezekiel Dyke is the Secretary General of the United Mineworkers Union of Sierra Leone.

Mark Van Bockstael is head of the International Affairs section of the Antwerp World Diamond Centre (AWDC), formerly known as the Antwerp Diamond High Council (HRD). He was one of the pioneers of the concept of certified trading chains (CTCs). Under his leadership, he helped draft the first CTCs for states such as Angola, Sierra Leone and the Democratic Republic of the Congo between 1999 and 2002. His work paved the way for the WDC System for International Rough Diamond Export and Import Controls. As a member of the WDC team, he was involved in negotiations on the Kimberley Process and currently holds the position of chairperson of the working group of diamond experts.

Before joining the German Federal Institute for Geosciences and Natural Resources (BGR) in 1991, Manfred Dahlheimer worked for the Peruvian mining company Centomin Perú and the German company Metallgesellschaft. He has a degree in mineralogy and a doctorate in economic geology. At BGR, he was responsible for the division for mining and the environment from 1991 to 1997, and for the area of Mineral Economics from 1997 to 2003. Since 2003, he has managed the regional department Africa and America, part of the International Cooperation division.