Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
National treatment
Most-favoured nation treatment
Arbitrary, unreasonable and/or discriminatory measures
http://globalarbitrationreview.com/news/article/14041/hungary-hit-ect-claim/ (requires subscription)
http://globalarbitrationreview.com/news/article/31036/ect-does-not-protect-investors-eu-law-tribunal-rules (requires subscription)
http://www.energycharter.org/what-we-do/dispute-settlement/investment-dispute-settlement-cases/18-electrabel-sa-belgium-v-republic-of-hungary/
http://www.iareporter.com/articles/in-new-award-arbitrators-explain-why-remaining-claims-in-electrabel-v-hungary-case-dont-breach-energy-charter-treaty/ (requires subscription)
http://www.transnational-dispute-management.com/downloads/14749-case_report_electrabel-v-hungary.pdf