Companies in environmentally exposed industries are interesting from the standpoint of CSR reporting because they need to convince the investing public that their activities cause no or just a very little harm to the society, local community and environment. Here we analyse the case of mining giant Glencore. The question is whether the reporting is performed in line with a CSR framework. In particular, we examine the CSR keywords in sustainability reports in 2015 and 2017, and assess the results reached. The research finds that, although the situation has improved over the years and the reporting is done in accordance with the rules to strengthen the legitimacy of the company, some of the facts are still rather striking.