12% http://www.riotinto.com/our-commitment-107.aspx http://www.riotinto.com/documents/RT_The_way_we_work_EN.pdf http://www.riotinto.com/documents/RT_2017_Annual_report.pdf 2017 Sustainable development report riotinto.com/sd2017 Governance integrity: 43 Integrity is one of Rio Tinto’s five core values and is fundamental to everything we do.