Share issue coming up - expect price drop?

PIO's consumption of cash ($1.7M last quarter) and funds on hand ($3.7 last quarter) indicates that fund raising will be necessary soon. Development of the caesium mine in the near future, all going well, adds to the pressure, even though direct shipping of product gives quick realisation of revenue at lowest cost.
I am selling now in expectation of drop in SP.
Last time there was a SPP at 1.4c, I bought on the market at 1.5c and I am looking for a similar reaction again (i.e. price drop to just above the offer price, whatever that is set at).