Committed to transparent reporting http://riotinto.com/sdhttps://www.globalreporting.org/Pages/default.aspx http://www.icmm.com/ http://www.icmm.com/ http://www.un.org/millenniumgoals/ https://www.unglobalcompact.org/ https://www.cdp.net/en-US/Pages/HomePage.aspx https://www.cdp.net/water http://www.sustainability-indices.com/ http://www.ftse.com/products/indices/FTSE4Good http://www.riotinto.com/documents/RT_The_way_we_work_English.pdf http://www.riotinto.com/sd2014/pdfs/internal-controls.pdf http://www.riotinto.com/ar2014 https://www.globalreporting.org/Pages/default.aspx http://www.riotinto.com/sd2014/our-reporting-approach.html http://www.icmm.com/ http://www.riotinto.com/aboutus/policies-standards-and-guidance-5243.aspx http://www.riotinto.com/sd2014/7_sd2014_glossary.html http://www.riotinto.com/ourcommitment/local-sustainable-development-reports-3145.aspx Rio Tinto Sustainable development 2014 riotinto.com/sd2014 Performance: 03 We engaged an independent external assurance organisation, PricewaterhouseCoopers (PwC), to provide the board of directors of Rio Tinto plc and Rio Tinto Limited with assurance on selected sustainable development subject matters, as explained in the independent limited assurance report.