RE:Rio Tinto The other reason I think they may be waiting on ADD is that there project is in close proximity to Diavik and Ekati mines. Both of which are near there life expectancy. The appeal here would be that both those mines have there own processing plant which ADD or whoever buys ADD's pipes, could use when they go into production potentially. Still early days but once the bulk sample done I'm early 2023, things move fast from there