Most-favoured nation treatment
Indirect expropriation
https://www.iareporter.com/articles/singaporean-investor-reportedly-moves-to-treaty-arbitration-against-mexico/ (requires subscription)
http://posh.listedcompany.com/news.html/id/654434
http://ciarglobal.com/proveedora-de-servicios-maritimos-de-singapur-presenda-demanda-de-arbitraje-contra-mexico/
https://www.gob.mx/cms/uploads/attachment/file/389608/6to_Informe-SE_web.pdf
https://www.gob.mx/cms/uploads/attachment/file/396655/Pacc_Offshore_Ficha.pdf
https://globalarbitrationreview.com/article/1177572/singaporean-investor%E2%80%99s-claim-against-mexico-underway (requires subscription)
https://www.iareporter.com/articles/analysis-posh-v-mexico-tribunal-finds-that-most-of-the-impugned-measures-do-not-bear-a-sufficient-relation-to-investor-and-that-higher-standard-for-judicial-expropriation-is-not-met-awarding-only-a/ (requires subscription)