CMS has announced that Kostadin Sirleshtov has taken over as Managing Partner of the firm’s Bulgarian office from David Butts, who is stepping down after almost ten years in the role and retiring from the CMS partnership.
Sirleshtov has been a leader of the Energy practice of CMS in Bulgaria for over 13 years and has been Head of the CMS Energy practice for Central and Eastern Europe since 2014. According to CMS, "his area of expertise spans across oil and gas, conventional power, underground resources, nuclear energy, electricity, renewables, infrastructure, projects, PPP, public procurement. He has advised on all offshore oil & gas production concessions in Bulgaria and was involved in all recent tenders in the sector. He has advised a multitude of energy clients on their oil & gas exploration and production activities in Bulgaria."
Butts moved to Europe from his native Canada in 2001 to join Hayhurst Robinson as a partner in Budapest and Sofia. Five years later, in January 2006, the firm merged with CMS McKenna.