Who qualifies for Estonia's Intra-Corporate Transfer (ICT) permit?

Estonia's ICT permit implements the EU Intra-Corporate Transfer Directive and is for three categories of staff transferred from a non-EU entity to a related entity in Estonia: managers, specialists, and trainee employees. The role must fit these definitions under the directive, and the transfer must be within the same corporate group. It is specifically a transfer route, not a permit for a new local hire who has no prior link to the company group.