Alrosa in the near future will not be able to maintain an optimal balance of the mineral resource base of diamonds, said a representative of the company's exploration complex Egor Zakharov. If the current level of financing of geologic exploration will be maintained, the production level will exceed the amount of new reserves on the balance sheet. In this connection Zakharov thinks it is necessary to substantially increase exploration works aimed at localization of perspective areas with evaluation of P3 and P2 category probable resources.