Follow Commissioner KosXFacebookInstagramLinkedinOther social networks Page contents Page contents Responsibilities Marta Kos is the Commissioner for Enlargement. She drives the European Union’s enlargement process forward and develops the EU’s relations with countries in the region, including in the Western Balkans, Ukraine and Moldova.She is responsible for:working with candidate and potential candidate countries on their merits-based path to join the EU, by supporting the required structural reforms, their respect for the rule of law and fundamental values, and strengthening their resilience and preparednessleading the Commission’s continued support of Ukraine, in particular efforts on Ukraine’s reconstruction and accessioncontinuing exchanges with Türkiye to improve cooperation on political, economic and trade matterscoming up with a Black Sea Strategy, together with the High Representative/Vice-Presidentsupporting the countries of the Southern Caucasus, in particular on regional connectivityRead more about EU solidarity with Ukraine, enlargement and relations with the EU’s neighbourhood. ContactsTeamsupporting her in her daily workMedia contactsCommission spokespersons' serviceWrite to the CommissionerShare your views Speeches Speech27 November 2025Speech by Commissioner Marta Kos at the Trans-Caspian Transport Corridor and Connectivity Investors Forum in Uzbekistan3 min readSpeech21 November 2025Opening Speech by Commissioner Marta Kos at the Growth Plan Summit in Tirana4 min readMore speeches Latest Press release4 November 20252025 Enlargement package shows progress towards EU membership for key enlargement partners*11 min readPress release21 October 2025EU strengthens cross-regional cooperation with Black Sea countries, the South Caucasus and Central Asia 3 min readMore news Calendar 05Dec2025Commissioner Kos meets with Mr Matjaž Han, Minister of the Economy, Tourism and Sports of Slovenia Ljubljana, Slovenia See all Transparency Meetings and missionsAs part of the Commission's commitment to transparency, Commissioners and their Cabinet members publish information on and minutes of all meetings they hold with interest representatives. Every two months, they also publish an overview of mission expenses.Meetings with Commissioner KosMeetings with Commissioner Kos's Cabinet membersMissions of Commissioner KosEuropean Parliament hearingsRead Commissioner Kos's answers to the European Parliament questionnaire.Declaration of interestsIn line with the Commission's Code of Conduct for Members of the Commission, each Commissioner publishes a declaration of interests. A signed, authentic version is published at the bottom of this page. A machine-readable version of all declarations is also available, as required by the Code of Conduct. Biography 2024-presentEuropean Commissioner for Enlargement2021-2024Self-employed, Kos Consulting & Coaching2017-2021Ambassador of Slovenia to Switzerland and Liechtenstein2013-2017Ambassador of Slovenia to Germany and Latvia2003-2013Director, Co-Owner and Business Coach, Gustav Käser Training International2000-2003Vice-President for International Relations, Chamber of Commerce and Industry of Slovenia1999-2000Head of the President's Office and Head of the Public Relations Department, Chamber of Commerce and Industry of Slovenia1997-1999Director of the Government Public Relations and Media Office, and Government's Spokesperson1993-1997Foreign Correspondent in Germany, RTV Slovenia, Slovenian National Radio and TelevisionShow 5 more items1990-1993Journalist, Radio Deutsche Welle, Germany Documents 1 DECEMBER 2024President von der Leyen’s mission letter to Marta KosOther languages (1)slovenščina(476.04 KB - PDF)Download 5 FEBRUARY 2025Declaration of interests - Marta Kos Related links The PresidentCollege of CommissionersEnlargement and Eastern Neighbourhood
Speech27 November 2025Speech by Commissioner Marta Kos at the Trans-Caspian Transport Corridor and Connectivity Investors Forum in Uzbekistan3 min read
Speech21 November 2025Opening Speech by Commissioner Marta Kos at the Growth Plan Summit in Tirana4 min read
Press release4 November 20252025 Enlargement package shows progress towards EU membership for key enlargement partners*11 min read
Press release21 October 2025EU strengthens cross-regional cooperation with Black Sea countries, the South Caucasus and Central Asia 3 min read
05Dec2025Commissioner Kos meets with Mr Matjaž Han, Minister of the Economy, Tourism and Sports of Slovenia Ljubljana, Slovenia