Knowledge Center
Maritime Education
Expert guides on West African maritime trade, including vessel chartering, port operations, STS transfers, and market intelligence from Calmwaters Shipping.
Featured Guides
In-Depth Maritime Resources
Ship-to-Ship (STS) Transfer Operations
Complete guide to STS operations in West Africa, how they work, IMO regulations, Nigerian STS zones, safety requirements, and commercial aspects.
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Port of Lomé, Oil & Gas Potential
West Africa's only deep-water port, 18.6m draft, STS petroleum hub, Dangote Refinery connection, and strategic importance for vessel chartering.
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Dangote Refinery, Maritime Impact
How the world's largest single-train refinery (650,000 bpd) is transforming vessel chartering, tanker rates, and trade routes across West Africa.
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Calabar Port Guide, Depth, Berths & Facilities
Complete guide to Calabar Port, Cross River State. Channel depth 7.0m, 170m max LOA, terminal operators, draft limitations, and chartering implications.
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Warri Port Guide: Specifications & Operations
Warri Port deep-dive: 6.4m draft, 1,530,000 sqm total area, Free Zone status, terminal operators, and chartering considerations.
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Onne Port Guide: Oil & Gas Free Zone
Onne Free Zone: Nigeria's oil and gas hub, 13m channel draft, FOT and FLT terminals, 65% of Nigerian export cargo, and offshore support.
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Tin Can Island Port Guide: Nigeria's Second Busiest
Tin Can Island Port: 25m channel draft, 12 berths, 5 terminal operators, $1B modernization, and chartering implications.
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VLCC Charter Guide: Specifications & Routes
Very Large Crude Carrier specifications, trade routes, BIMCO charter terms, West Africa crude exports, and Nigerian SPM operations.
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PSV & AHTS Charter Guide: Offshore Vessels
Platform Supply Vessel and Anchor Handling Tug Supply specifications, BIMCO SUPPLYTIME terms, and Nigerian offshore operations.
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NIMASA Compliance Guide: Registration & Regulations
Vessel registration types, Cabotage Act requirements, Operation Zero Tolerance enforcement, CVFF, and Nigerian maritime compliance.
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Nigerian Customs Clearance Guide: Form M & Duties
Form M requirements, PAAR processing, NICIS II system, import duties, prohibited items, and clearance timelines for Nigerian ports.
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West Africa Charter Rates 2026: Market Intelligence
Tanker, bulk carrier, and offshore vessel charter rates. Dangote impact, OPEC+ quotas, Gulf of Guinea security, and rate factors.
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AfCFTA Shipping Impact: Intra-African Trade
How the African Continental Free Trade Area is transforming West Africa shipping, trade flows, and port infrastructure.
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Nigerian Port Requirements 2026: NPA Compliance
NPA registration, service boat licenses, pilotage exemptions, ISPS compliance, harbour dues, and terminal concession requirements.
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Dangote Refinery 2026 Update: Production & Maritime Impact
Peak throughput 700,000 bpd, crude import surge, refined product exports, SPM terminals, and maritime economy reshaping.
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Maritime Glossary: 100+ Shipping & Chartering Terms
Comprehensive glossary of maritime, vessel chartering, and West Africa shipping terms. Definitions for VLCC, BIMCO, NIMASA, and port operations.
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Nigerian Port Comparison: Lagos vs Onne vs Warri vs Calabar
Side-by-side comparison of Nigerian ports: draft, facilities, congestion, clearance times, and costs. Which port is best for your cargo?
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VLCC vs Suezmax vs Aframax: Vessel Comparison Guide
Compare VLCC, Suezmax, and Aframax tanker specifications, cargo capacity, draft requirements, and West Africa route suitability.
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NIMASA Registration Step-by-Step: How to Register a Vessel
Step-by-step guide to NIMASA vessel registration in Nigeria. Required documents, fees, timelines, and compliance requirements.
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Customs Clearance Step-by-Step: How to Clear Goods in Nigeria
Step-by-step guide to Nigerian customs clearance. Form M, PAAR, NICIS II, duty payment, and port release process.
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Charter Rate Calculator: How Vessel Charter Rates Work
Understand vessel charter rate calculations: Worldscale, flat rate, time charter. Interactive calculator for West Africa routes.
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West Africa Port Security Guide: ISPS, War Risk & Safety
Guide to port security in West Africa: ISPS Code compliance, Gulf of Guinea piracy, war risk premiums, and insurance requirements.
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Dangote Refinery Supply Chain Map: Crude Imports & Product Exports
Visual guide to Dangote Refinery supply chain: crude import routes, product export destinations, SPM terminals, and Lomé hub.
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