https://www.iareporter.com/arbitration-cases/anglo-american-v-colombia/ (requires subscription)
https://globalarbitrationreview.com/colombia-faces-second-icsid-claim-over-mine-expansion-project (requires subscription)
https://www.iareporter.com/articles/mining-arbitration-against-colombia-is-discontinued/ (requires subscription)
https://globalarbitrationreview.com/article/miner-drops-icsid-claim-against-colombia (requires subscription)