Brussels, 02/07/2013 (Agence Europe) - On 2 July, the European Commission opened an in-depth investigation to verify whether the non-payment of social security contributions and other liabilities due to the Slovak state during the bankruptcy proceedings of Slovakian chemical company NCHZ was in line with EU state aid rules. In November 2009, Slovakia adopted a law requiring trustees to ensure the continued operation of strategic companies during bankruptcy proceedings. In December 2009, NCHZ...