The fifth conference of labor and employment ministers held in Sofia as part of the Asia-Europe dialogue closed with the adoption of a declaration aimed to serve as the basis of future discussions for the improvement of working conditions and social protection of workers on the two continents. The conference is the biggest international high-level event held in Bulgaria in 2015 and its results provide a basis for furtherance in partnership between the countries of the two continents in employment, Bulgarian Labor Minister Ivailo Kalfin said.