In November 2013, Rio Tinto Finance plc and Rio Tinto Finance Limited entered into a US$1,875 million three-year and a US$5,625 million five-year multi-currency revolving credit facilities (including a US$ denominated same day access swing-line facility) with a syndicate of banks. The facilities are guaranteed by Rio Tinto plc and Rio Tinto Limited. In November 2015, the facilities were amended and their maturities extended for two years. In November 2016, the facilities were extended for an additional year. Currently, the US$1,875 million facility expires in November 2019 and the US$5,625 million five-year facility expires in November 2021. There is an additional renewal extension option that could be utilised in 2017. The facility agreements contain no financial covenants.