Unstoppable Operations: Recently the PBM has been strongly promoting the steel cable method of mining, which has relatively little impact on the land and water and increased the percentage of stones that can be recovered to 50-60 %.
近來礦務局也大力推廣以「金鋼索鋸」切割礦脈的開礦方式，對水土保持影響小，礦石收穫量也可提高到五、六成。