GlossaryEN1 min readUpdated: Jun 16, 2026
Bunker Cost Management Freight
Freight rate negotiations and contract execution are the moments when bunker cost management becomes visible: it covers the systematic control of marine fuel expenditure, primarily through the Bunker Adjustment Factor (BAF), a variable surcharge added to the base freight rate.
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Source: https://www.marineinsight.com/marine-glossary/bunker-adjustment-factor-baf/
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Definition & Explanation
Freight rate negotiations and contract execution are the moments when bunker cost management becomes visible: it covers the systematic control of marine fuel expenditure, primarily through the Bunker Adjustment Factor (BAF), a variable surcharge added to the base freight rate. The BAF absorbs fluctuations in global bunker oil prices without requiring renegotiation of the underlying contract. Carriers, freight forwarders, and shippers agree on a calculation methodology in advance—typically pegged to recognized market indices—and document it in the freight agreement or tariff schedule. Beyond surcharge mechanics, bunker cost management extends to fuel price hedging, consumption monitoring, and optimizing bunkering port calls. Under long-term contracts or high-volume arrangements, a structured approach protects both parties from uncontrolled cost exposure.
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