(1) Whether a specific quality of coal is required for Medupi Power Station as it will be a supercritical coal-fired power station; if not, how was this conclusion reached; if so, (2) whether Medupi will be supplied with this quality of coal; if not, why not; if so, what are the relevant details; (3) whether his department will ensure that Medupi’s performance is not compromised by the quality of coal; if not, why not; if so, what are the relevant details; (4) whether there are any other supercritical coal-fired power stations internationally that burn the quality of coal that Medupi is currently contracted to burn; if not, how was this conclusion reached; if so, what are the relevant details?