Anyone in mining and metals want to shed some light on this?

Hello Monkeys,
I was talking to an alumnus about his career in the m&m group. He said that he recently got involved in a deal in which the bank helped a mining company to finance by debt. The form of debt apparently is called a mining insurance. I'm not exactly sure what it's called but according to him it is a very special form of debt for mining companies that is usually only issued by JPM. Does anyone know what he was referring to? Thanks.