Cyprus-based Quentrol Limited is seeking approval from Bulgaria's Commission for Protection of Competition to acquire Sofia-based Advisory Services Consulting, according to competition regulator data.The acquisition is not expected to affect competition on any market segment in Bulgaria, a notice published on the regulator's website on Wednesday reads.According to commercial register data, Quentrol Limited currently holds a 39.95% stake in Advisory Services Consulting.Bulgaria's Development Group also controls 39.95% interest in Advisory Services Consulting, while diversified group Ekip-98 Holding owns the remaining 20.10% interest.