Whether the National Treasury approved and/or supported any investments made by the Government in energy resources such as coal, oil, gas or other mineral resources and/or beneficiation process for energy resources or the direct supply of energy outside the borders of the Republic (a) in the (i) 2017-18 and (ii) 2018-19 financial years and (b) since 1 April 2019; if not, what is the position in this regard; if so, what are the relevant details?