The US corporation `Entergy`, investing in the rehabilitation of the TPP Maritza-East 3 expressed its serious concerns about the statement of the king`s economic expert Milen Velchev about the upcoming deregulation of the energy sector, at a board meeting of the company. The tipped for the next Finance Minister Milen Velchev said for `Financial Times` that renewal of the negotiation with the US investor could be expected in order to elucidate technical parameters of the deal. The deals for new construction and rehabilitation of TPPs Maritza-East 1 and 3 by the US companies AES and Entergy finalized by the cabinet of Ivan Kostov on June 13 continue to raise political torts.