The international container business in particular is concentrated in a handful of ports. Approximately 94% of the national total is handled through just five ports; Tanjung Priok, Tanjung Perak, Belawan, Tanjung Emas, and Panjang. The same five ports also account for nearly 85% of container movements in the domestic trade (OECD, 2012)
OECD. 2012. Indonesia : Regulatory and Competition Issues in Ports, Rail, and Shipping.