https://www.iareporter.com/arbitration-cases/corporacion-nacional-del-cobre-de-chile-et-al-v-ecuador/ (requires subscription)
https://web.archive.org/web/20221207093648/https://www.codelco.com/prensa/2021/codelco-inicia-arbitraje-ante-el-ciadi-en-relacion-con-el-proyecto