【JCHX Mining Management: Plans to Invest US$231 Million in Alacran Copper-Gold-Silver Mine Project】JCHX Mining Management (603979.SH) announced that the company intends to contribute approximately US$231 million in proportion to its shareholding for the construction of the Alacran copper-gold-silver mine project. The project involves mining and beneficiation engineering, with the mine adopting open-pit mining methods. The total designed ore quantity within the pit limits is 97.9 million mt. The estimated project investment is US$420 million, with a construction period of 2 years. Upon completion, the mine's expected lifespan is 14.2 years. The project's after-tax net present value (NPV) is US$360 million, with an internal rate of return (IRR) of 23.8% and an estimated payback period of 3 years. This investment is contingent upon the company completing the acquisition of equity in CMH and obtaining control over CMH, with related matters still subject to uncertainties.