It seems that whoever is advising them on the dual listing on...

It seems that whoever is advising them on the dual listing on LSE has also advised them to sell Ravenswood as it's not considered an attractive asset to UK investors. This has been borne out by the subsequent newspaper article saying that a sale or spin-off was likely and then the Company's response that it was reviewing Ravenswood.
So you would have to think it would be sold if there were in fact any buyers for the mine. Now the market knows that RSG is a seller the bids will not be generous. They might even accept a bid of one dollar as long as the buyer assumes the substantial rehabilitation responsibility. RSG had a total rehabilitation provision of $65.7mil covering its mines at Jun18 - up to half might be for Ravenswood.
That leaves them with one operating mine and a doubtful proposition in Bibiani - again not an attractive package - so maybe with the LSE listing or soon thereafter, they will takeover one of their current investments, maybe Orca Gold to make the package attractive - of course, to finance that they might be issuing 200mil shares at around a dollar equiv in GBP.