My calcs suggest for running in range 150 - 200 trucks per day (day shift only 5 days per week, 48 weeks per annum allowing 2 weeks public hols and 2 weeks CHPP shutdown), and assuming $10/t tolling and $5.50/t costs, net revenue to B2Y (after CHPP and labour costs) of order $4.026 - $5.369M per annum or $335-447k per month.