Adani Ports and Special Economic Zone on Friday said its wholly owned subsidiary Adani International Ports Holdings Pte Ltd (AIPH) has signed a 30-year concession agreement with the Tanzania Ports Authority to operate and manage Container Terminal 2 at the Dar es Salaam Port in Tanzania. The Dar es Salaam Port is a gateway port with a well-connected network of roadways and railways, Adani Ports and Special Economic Zone (APSEZ) said in a statement.