2018 Corporate Responsibility Report
2018 Corporate Responsibility Report Executive Summary
2018 Corporate Responsibility Report Executive Summary (German Version)
2017 Corporate Responsibility Report
2017 Corporate Responsibility Report Executive Summary
2017 Corporate Responsibility Report Executive Summary (German Version)
2016 Corporate Responsibility Report
2016 Corporate Responsibility Report Executive Summary
2015 Corporate Responsibility Report
2014 Corporate Responsibility Report
2013 Corporate Responsibility Report
2012 Corporate Responsibility Report
2012 Corporate Responsibility Report Executive Summary
2011 Corporate Responsibility Report
2011 Corporate Responsibility Report Executive Summary
2010 Corporate Responsibility Report
2009 Corporate Responsibility Report
2008 Corporate Responsibility Report
2007 Corporate Environmental Report
2005 Corporate Environmental Report

2018 Limited Assurance Report
2017 Limited Assurance Report
2016 Limited Assurance Report
2015 Limited Assurance Report
2014 Limited Assurance Report

ISO 14001 Certificate
OHSAS 18001 Certificate
ISO 9001 Certificate
ISO 14064 Verification Statement 2018
ISO 14064 Verification Statement 2017
ISO 14064 Verification Statement 2016
ISO 14064 Verification Statement 2015
ISO 14064 Verification Statement 2014
ISO 14064 Verification Statement 2013

2018 Responsible Minerals Reports
2017 Responsible Minerals Reports
2016 Conflict Mineral Report
2015 Conflict Mineral Report
2014 Conflict Mineral Report
2013 Conflict Mineral Report