The director of the Department of Mining, Pedro Vasquez says he expects to announce the winner of the tender to chose a partner to exploit the sulfur deposits of Rosario Mining in Cotuí by March. He said the exploitation would eventually generate US$400 million a year to the state. He said the state will contribute the ore deposit and the present Rosario Mining installations. The foreign partner will fund the project and provide the advanced technology to exploit the ore. He told Hoy newspaper that the deposit has an estimated potential of 28 million ounces of gold, 177 million ounces of silver and 2.7 million tons of zinc.