(1) Whether the supply of bitumen, a key ingredient in tar for road making is affecting the (a) expansion of major infrastructure projects and (b) possible (i) creation and (ii) retention of job prospects in the country; if not, why not; if so, (2) whether there has been any identified delays or shortages of the product; if not, what is the position in this regard; if so, what are the relevant details; (3) what measures have been put in place by his department to (a) alleviate shortages and (b) maintain the increased demand at all times?