Sell on which news? Could sell on the first batch of results, the second, third, twentieth batch. ...or on the permitting news, gold pour, when it makes the headlines: The Australian, Kitco, Reuters, BBC or the New York Times.
From an old post: On average, each individual Tres Ema hole yields more ounces than the entire CMM resource.(9.5Moz / 6 holes = 1.6Moz).
So each batch of results will upgrade the deposit potential and knowing the true grades we can update any preliminary estimates (and so can the analysts).