(1) What amount is currently set aside in the financial provisions required under the (a) Mineral and Petroleum Resources Development Act, Act 107 of 2002 and (b) the National Environmental Management Act, Act 107 of 1998 as amended, for rehabilitation at the Optimum colliery;
(2) (a) in what form, (b) where, and (c) by whom is this provision held;
(3) is any concurrent rehabilitation being undertaken; if so, (a) what rehabilitation and (b) what amount of the financial provision (i) has been used to pay for the concurrent rehabilitation and (ii) is planned to be used for the concurrent rehabilitation in future;
(4) is any rehabilitation at Optimum Colliery planned to take place before its closure; if so, (a) how will this be financed and (b) what control and involvement will his department have in these activities?