All the Significant Unobservables for biological valuations are...

All the Significant Unobservables for biological valuations are in the Annual Report, Note 11 on Page 86. To me the most uncertain variables are Sandalwood oil price ($US2,800/kg) and Discount rates (12-14%).

I argue the Discount rates used have scope to fall over time as more harvests provide confidence in yields, with the biggie being can TFC sustain the $US4,500/kg price for oil currently being achieved? What's your perspective tippy?