Statistical Appendix to Minerals Yearbook

Statistical Appendix to Minerals Yearbook

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The company was purchased by a joint venture comprised of Grupo Acerero del Norte (51%) and Mission Energy of the U.S. (49%). ... Regulations of the new Mining Law, which became effective in September 1992, as well as the aquot;Manual de Servicios al Publico en Materia ... The law extended the term of exploitation concessions from 25 to 50 years, renewable for a similar period, while explorationanbsp;...

Title:Statistical Appendix to Minerals Yearbook
Author:United States. Bureau of Mines
Publisher: - 1994


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