SLIDESHOW: Chile turns world’s largest open pit copper mine into an underground operation Cecilia Jamasmie | November 6, 2013 | 6:23 pm Chuquicamata underground expansion work. Share Comments Cancel replyYour email address will not be published. Required fields are marked * Save my name, email, and website in this browser for the next time I comment. Δ No comments found. More News Century-old hydroelectric power plant in Quebec gets $1.2B boost from Rio Tinto This is Rio Tinto’s largest single investment in its hydroelectric assets since the 1950s. May 15, 2025 | 12:58 pm US mining permits fast tracked? Legal insights on Trump critical minerals executive order The order to stimulate US production aims to alter the political landscape of languishing mining project permitting files. May 15, 2025 | 11:57 am {{ commodity.name }} {{ post.title }} {{ post.excerpt }} {{ post.date }} First < {{ page }} > Last
Century-old hydroelectric power plant in Quebec gets $1.2B boost from Rio Tinto This is Rio Tinto’s largest single investment in its hydroelectric assets since the 1950s. May 15, 2025 | 12:58 pm
US mining permits fast tracked? Legal insights on Trump critical minerals executive order The order to stimulate US production aims to alter the political landscape of languishing mining project permitting files. May 15, 2025 | 11:57 am
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