The NPI for Royal is a burden on the economics. How much depends on where in the revenue stream the interest is calculated. The same applies to the NPI for Liard. Money flows to Liard from the JV. It's more efficient to net out the Teck and CUU portion first but, if they can't, then Liard will have to remit back as you suggest. The point though is Teck and CUU will not end up with more money back than they gave Liard, as Moneyk keeps saying. It's still a burden on the economics although greatly reduced because Teck and CUU are shareholders in Liard.I've worked with a project economics team providing input. Golf is correct in that it doesn't take long to do it. The delay comes from a disagreement over how to calculate it.