National treatment
Arbitrary, unreasonable and/or discriminatory measures
Other
https://www.iareporter.com/articles/cement-investor-asks-uncitral-tribunal-for-an-order-directing-ecuador-to-ensure-legal-security-with-respect-to-its-mandatory-pension-contributions/ (requires subscription)
https://globalarbitrationreview.com/article/pca-hears-cement-groups-treaty-claim-against-ecuador (requires subscription)