1) Resource: Agree with your comments. In TAW's case the aim was speed to production, so they didn't cherry pick the most attractive area, they drilled on the granted mining leases (inbetween the existing Ta pits and close to plant, AMAL started off mining tantalum and it was by good fortune that the price of Ta dropped that they discovered high grade Li concentrate could also be produced from the ore). So now that we've secured the Burwill offtake deal, we can focus on the most attractive areas to increase the tonnage and maintain the high grade.
2) OpEx: yes, Canaccords OpEx for Li production is reasonable. Awaiting DFS to confirm.
3) Ta Credits: When production starts TAW will have significant Ta by-product, it'll become one of the worlds biggest Ta producers. The Ta at Bald Hill has a low radioactivity factor which allows it to be imported and sold into Japan (so will command a premium price). Tantalite concentrate that was produced during the commissioning process (before the Ta plant was shutdown), was recently sold for A$187,574 (1.2 tonnes, ~A$71/lb). So it will be a driver for revenue along with Li. Awaiting Ta offtake to confirm pricing.
4) Burwill: one of the reasons it was chosen was how quick it could move, within three weeks of meeting and negotiations a deal was signed and 1st installment of the prepayment of A$7.5m was received by TAW/AMAL. Even if the deal falls through we could re-engaged other interested parties and pocket the prepayment. The demand is there and supply is slow to come online for the next several years or so (it's a sellers market at the moment).