Significant development is under way at Dar es Salaam Port, the country's main port which is responsible for around 95% of all Tanzania's export and import volumes. As part of the country's Vision 2025, the government is seeking to increase its port to 28mn tonnes by 2020 from current 14.6mn tonnes handled in 2014. Berths one to seven at the port are currently being upgraded at an estimated cost of USD596bn, and two more (berths 13 and 14) are due to be built in 2017.