United Kingdom
https://www.iareporter.com/articles/chinese-lithium-miner-makes-good-on-earlier-threat-to-lodge-treaty-arbitration-against-mexico/ (requires subscription)
https://globalarbitrationreview.com/article/chinese-lithium-miner-takes-mexico-icsid (requires subscription)