Per HTV, this was agreed at a meeting between BiH Foreign Minister Zlatko Lagumdzija and Croatian Foreign Minister Vesna Pusic.

The topic of discussion was the Neum corridor and resolution of open border issues between the two countries.
 
"Croatia is not denying anything. Croatia defines the border of its territory not only at these points, but on the 1000 kilometers of the border. This is a procedure that is lengthy and complicated and was achieved during Croatian President Franjo Tudjman's and BiH President Alija Izetbegovic's governments. The agreement was ready for ratification by 2005. For several reasons it was not ratified then and it is very likely that in this way and form it will be proposed again for ratification," Pusic told Hrvatski Radio.
 
Under the Tudjman-Izetbegovic agreement, Croatia leaves the tip of the Klek Peninsula and minor islands in the Bay of Mali Ston to BiH.