Indirect expropriation
https://www.iareporter.com/articles/colombias-scale-back-of-mining-in-sensitive-conservation-zone-spurs-a-second-mining-company-to-threaten-arbitration-if-it-is-not-compensated/ (requires subscription)
https://globalarbitrationreview.com/article/1168125/canadian-mining-companies-take-on-colombia-at-icsid (requires subscription)
https://globalarbitrationreview.com/article/1167345/colombia-faces-treaty-claim-over-preservation-zone (requires subscription)