Published by Bundesanstalt für Geowissenschaften und Rohstoffe 2012 Bundesanstalt für Geowissenschaften und Rohstoffe BGR Referat für Schriftenpublikationen und Öffentlichkeitsarbeit Stilleweg 2 30655 Hannover Germany Phone 49 511 6 43 0 Fax 49 511 6 43 23 04 www bgr bund de Edited by Shawn Blore Researcher and analyst Henri Pierre Gebauer BGR Sector Project Policy Advice Mineral and Energy Resources with contributions from BGR Ulrike Dorner Gudrun Franken Antje Hagemann Manuel Hublitz Frank Melcher Philip Schütte Layout K Otremba H J Sturm B Rempe Copyright 2012 by Bundesanstalt für Geowissenschaften und Rohstoffe Hannover Germany All rights reserved This publication or parts thereof may not be reproduced in any form without the written permission of the publisher Printed by Das Druckhaus Bonn Printed on FSC certified paper As at February 2012 This publication is free For further information please contact info bgr de or visit our website www bgr bund de mineral certification Acknowledgements The projects mentioned in this publication are implemented in the framework of German Development Cooperation BGR was commissioned by the Federal Ministry for Economic Cooperation and Development BMZ and the Federal Ministry of Economics and Technology BMWi This publication was compiled with support of the BGR Sector Project Policy Advice Mineral and Energy Resources Imprin t