(1) With reference to the deal between Eskom and Optimum Colliery to supply coal to the Hendrina Power Station, (a) what grade of coal (i) was contracted for, (ii) was actually received by Eskom at the specified power station prior to the fine imposed against the specified colliery by the specified entity, and (iii) is currently being received by Eskom at the specified power station and (b) at what (i) price or (ii) prices;(2) why was the coal received from the specified colliery unsuitable for use by the specified power station prior to the imposition of the fine; (3) is the coal currently received from the specified colliery suitable for use by the specified power station; (4)did the use of unsuitable coal supplied by the specified colliery cause any damage to the specified power station; if so, (a) what damage was done, (b) what was the value of the damage caused to the specified power station and (c) has this damage been repaired; (5) is the poor quality coal still causing damage to the specified power station; if not, (a) was the grade of coal changed or (b) was the specified power station adapted to use a different grade of coal; if so, why is the specified power station still using this coal?