Commission Implementing Regulation (EU) 2015/2389 of 17 December 2015 establishing the allocation coefficient to be applied to the quantities covered by the applications for import licences lodged from 1 to 7 December 2015 and determining the quantities to be added to the quantity fixed for the subperiod from 1 April to 30 June 2016 under the tariff quotas opened by Regulation (EC) No 1385/2007 in the poultrymeat sector