Port of Zonguldak (Port Code: TRZON) is situated on the Black Sea coast, approx 330km E of Istanbul. The main function of the port is the export of coal from the Eregli coalfields. There are also regular passenger and Ro-Ro ferry services. Approx 200 vessels visit the port annually. Largest vessel handled: "Kahraman Maras", bulk carrier, draught 8.5m, 30,360DWT. The well-quipped port is the main outlet for coal extracted from the basin between Zonguldak and Ereğli.