
Bulankulama v. Min. of Industrial Development (Eppawala ...
The National Science Foundation`s Committee stated as follows: "Mining of rock phosphate should be done at a controlled rate ( 350,000 mt per year) so that the present deposit could be utilized by several generations. However, if more deposit are found, the rate of exploration could be revised, the guideline being that the ore should last at least 200 years for use in Sri Lanka`s ...