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.
Take context from the input text and decide on the accurate relationship between 'Minas Rio' and 'iron ore' from the options provided.
Options: operator, manufacturer, product/material produced, position held