Cyprus
Czechia
Switzerland
National treatment
Most-favoured nation treatment
Umbrella clause
Arbitrary, unreasonable and/or discriminatory measures
https://www.iareporter.com/articles/poland-claims-victory-in-under-the-radar-scc-arbitration/ (requires subscription)
https://www.gov.pl/web/prokuratoria/korzystny-dla-polski-wyrok-trybunalu-arbitrazowego-uzyskany-dzieki-prokuratorii-generalnej
https://globalarbitrationreview.com/poland-declares-win-in-heat-and-power-dispute (requires subscription)
https://www.iareporter.com/articles/svea-court-of-appeal-sets-aside-entire-ect-award-favoring-poland-on-intra-eu-grounds-despite-non-eu-nationality-of-one-of-the-claimants/ (requires subscription)