In the case of regulated procurement, he advises and represents public and private sector clients on issues of EC procurement rules as well as on the application of the WTO Agreement on Government Procurement and the effect on the procurement rules of the EC’s preferential trade arrangements. He is a leading practitioner in the field of procurement reform worldwide. He was one of three dispute panelists in the procurement dispute between the U.S. and South Korea under the WTO’s Government Procurement Agreement.