This report sets out the results of a review of progress made in managing biodiversity among International Council of Mining and Metals (ICMM) members from 2003 to 2013. The report was jointly commissioned by ICMM and IUCN under their 2011 Memorandum of Understanding, which aims to influence and improve mining companies’ performance in the area of biodiversity conservation management. The report identifies good practice, the status of emerging issues and recommends areas for future action for ICMM members and the IUCN-ICMM dialogue.