Charis is admitted in three jurisdictions (Singapore, England and Wales and New York), and she advises States and MNCs on a wide range of public international law issues, including in high profile State-to-State disputes before the International Court of Justice.
She has also worked on a wide range of investment treaty and commercial arbitrations under the rules of major arbitration institutions, including ICSID, ICC, SIAC and SCC, as well as ad hoc proceedings under UNCITRAL Rules. Charis is appointed as counsel and she also sits as an arbitrator.
Charis also acts for National Oil Companies (NOCs) and International Oil Companies (IOCs) in both contentious and non-contentious upstream oil and gas matters. A unique area of her specialisation is where the practice of oil and gas crosses into the public international law sphere, such as where oil blocks straddle disputed boundaries.