Dec 10 (Reuters) - Big River Industries Ltd BRI.AX :
* EXPECTS TO SEE FIRST HALF 2019 EBITDA (BEFORE ACQUISITION COSTS) DOWN AROUND 25% ON PREVIOUS CORRESPONDING PERIOD
* FULL YEAR 2019 EBITDA IS NOW FORECAST TO BE BETWEEN $9M AND $10M IF USUAL SECOND HALF SEASONALITY IS EXPERIENCED