Better to have the most economically viable results than to be just the first. Since the news release mentions completion on, I think 3rd February, KWGs bulk sample will be processed after that 'during February'. CLF will compare both deposits carefully before making any decisions, and if there is a significant difference, we may come out winners.
Another factor to consider is their first step will be to mine and ship ore that does not need enrichment, in order to get cash flow while building the smelter. That of course requires transport infrastructure.