It is the second multi-billion charge announced this year, mostly related to its recently launched Minas Rio iron ore mine in Brazil, which has been plagued by delays and cost overruns since Anglo bought it in 2007-2008 for about $5.5 billion.
Refer to the input text as context and select the correct relationship between 'Minas Rio' and 'iron ore' from the available options.
Options: product/material produced, position held, operator, manufacturer