Port of Onne

Maritime Risk Context

The South Atlantic connects the major commodity-exporting economies of West Africa and South America with global markets, carrying crude oil, iron ore, soybeans, coal, and containerized goods. Ports like Onne in Nigeria serve as export gateways for regional commodities and import terminals for manufactured goods and energy products. The South Atlantic's risk profile is dominated by two distinct threat clusters: Gulf of Guinea piracy off the West African coast, and the increasing strategic importance of the Cape of Good Hope routing as an alternative to the Red Sea corridor.

The Gulf of Guinea has surpassed the Gulf of Aden as the world's most active piracy zone, accounting for the majority of global piracy incidents and the vast majority of crew kidnappings. Unlike Somali piracy, which focused on vessel hijacking and ransom, Gulf of Guinea pirates typically conduct short-duration attacks aimed at kidnapping crew members for ransom, stealing cargo and valuables, or conducting oil cargo theft from tankers. The Nigerian Maritime Administration and Safety Agency (NIMASA) has deployed the Deep Blue Project to combat piracy, but the geographic scope of the threat — extending from Senegal to Angola — exceeds the capacity of any single national response. ArcNautical samples piracy incident data along the planned route geometry, with temporal weighting that emphasizes recent activity patterns.

The diversion of container traffic around the Cape of Good Hope due to Red Sea security threats has increased traffic density in the South Atlantic and along the South African coast, creating new congestion at bunkering ports and repair facilities. Vessels calling at Onne may encounter longer waiting times for port services and increased competition for berths. Weather conditions in the South Atlantic are generally more benign than the North Atlantic, but the Roaring Forties latitude band (40-50 degrees south) produces severe weather that affects Cape routing vessels. ArcNautical's fuel and emissions module calculates the CII compliance implications of Cape diversions versus Red Sea transit, providing operators with data to support routing decisions that balance security risk against carbon intensity targets.