Import & Export Guides
Spot Rates vs Contract Rates in Sea Freight: What China-Bangladesh Importers Should Know
Sep
Ask three forwarders for a China to Chattogram container rate on the same day and you may get three different numbers, each with a different validity date, a different list of what is included, and small print about surcharges. Part of the reason is that ocean freight is priced in two very different ways: spot rates, which reflect the market for a shipment moving now, and contract rates, which are agreed in advance for a period of time. Understanding the difference helps you read quotes properly and choose the right approach for your import volume.
What a spot rate is
A spot rate is the price a carrier or forwarder offers for a specific shipment in the current market. It changes with supply and demand: when vessel space is tight — before Chinese New Year, during peak season, or when disruptions take capacity out of the market — spot rates rise, sometimes sharply. When there is surplus capacity, they fall. Spot quotes carry a short validity, stated on the quote, and are normally applied based on the date the container is loaded or the vessel sails rather than the date you received the quote.
That last point catches many importers. A quote received in the first week of the month may be valid only until month-end. If the supplier delays production and the container sails the following month, the rate is repriced at whatever the market is then. The quote was never a promise for your shipment; it was a price for a shipment moving within that window.
What a contract rate is
A contract rate is agreed between a shipper (or a forwarder) and a carrier for a defined period — commonly several months or a year — usually in return for a volume commitment. Large importers and forwarders negotiate these as service contracts, often with a minimum quantity commitment, or MQC, stating how many containers the shipper will move during the term.
The benefit is predictability: the base rate does not move with every swing in the market. But contract rates are not as fixed as they look. Surcharges such as bunker adjustment factors, peak season surcharges and other ancillary charges are often still applied on top at the prevailing level. Some contracts are index-linked, adjusting periodically against a published freight index such as the Shanghai Containerized Freight Index (SCFI). And in a very tight market, carriers have been known to prioritise higher-paying spot cargo, so a contract rate does not always guarantee space.
Why spot rates swing so much
Container shipping capacity is fixed in the short term. A carrier cannot add a vessel to the China to South Asia trade overnight, so when demand rises faster than space, the price of the remaining space rises. Several recurring events push demand up on routes from China: exporters rushing to ship before factories close for Chinese New Year, seasonal peaks ahead of Western retail seasons that absorb vessel capacity across Asia, and disruptions such as port congestion or rerouting that tie up ships for longer. When vessels are delayed, fewer sailings are effectively available in a given month, which has the same effect as reduced supply.
Bangladesh is mostly served by feeder vessels connecting through transshipment hubs, so conditions at those hubs matter too. Congestion at a hub port can delay connections and tighten feeder space even when the main line market is calm. This is one reason Chattogram rates sometimes move differently from headline rates on major east-west routes.
Spot and contract side by side
| Factor | Spot rate | Contract rate |
|---|---|---|
| Price stability | Moves with the market | Base rate fixed or index-linked for the term |
| Validity | Short, stated on the quote | Months, as defined in the contract |
| Volume requirement | None | Usually a minimum quantity commitment |
| Benefit in a falling market | You pay less as rates fall | You may pay above market |
| Benefit in a rising market | Exposed to increases | Protected on the base rate |
| Space availability in peak season | Available if you pay the market price | Better priority in principle, not always in practice |
Which applies to a small or medium Bangladeshi importer
Most importers bringing in a few containers a year, or LCL shipments, do not hold carrier contracts directly. They buy from a forwarder or NVOCC, which may itself hold contracts with carriers and sell space to many customers. What you receive is effectively a spot-style quote from the forwarder, even if the forwarder’s own cost is partly contract-based. We explain the forwarder and carrier relationship in our guide to NVOCC versus direct carrier booking.
For regular importers with steady volumes — for example a business moving a container every month or two from the same region of China — it can be worth asking your forwarder whether they can offer a fixed rate for a period, such as a quarter, in return for committing your volume. Whether this is available, and whether it is better value than spot, depends on the market at the time and on your actual volume. There is no rule that one is always cheaper.
How to read a sea freight quote properly
Whichever pricing you use, most confusion comes from comparing quotes that are not like for like. Check these points on every quote:
- Validity and trigger date. Is the rate valid until a date, and is that measured by loading, sailing or booking?
- Inclusions. Does the figure include origin charges in China, the ocean freight, bunker and other surcharges, and destination charges at Chattogram, or only the ocean freight?
- Subject to GRI. A quote marked “subject to GRI” (general rate increase) can rise if the carrier announces an increase before your container sails.
- Surcharge basis. Are surcharges fixed in the quote or charged at the level applicable at sailing?
- Routing and transshipment. Direct feeder routing and transshipment via Singapore or Colombo have different transit times and risks.
- Free time. How many free days at destination for container use and port storage are included?
A quote that looks cheaper because it excludes destination charges is not cheaper. Our breakdown of how sea freight rates are calculated and our explanation of BAF and CAF surcharges will help you line quotes up properly.
Practical strategies to manage freight cost risk
- Book with realistic production dates. Rate validity only helps if the goods are ready. Confirm the factory’s ready date before booking.
- Avoid the pre-holiday rush. The weeks before Chinese New Year and Golden Week are when space tightens and spot rates rise. Shipping earlier or later often costs less.
- Consolidate where it makes sense. Combining orders from several suppliers into one container can reduce the per-cubic-metre cost; see our guide to cargo consolidation.
- Build freight into landed cost with a margin. Do not price your products on a freight cost that may be repriced at shipment.
- Keep a relationship with one forwarder. Regular customers are more likely to be offered stable pricing and space when the market tightens.
Mistakes importers make with freight rates
The most expensive mistakes are not about choosing spot or contract but about assumptions. Treating an old quote as valid, comparing an all-in quote with a freight-only quote, ignoring destination charges, and assuming a contract rate guarantees peak-season space all lead to surprises at the worst moment — when the goods are already packed and the customer is waiting.
DE International quotes China to Bangladesh sea freight with the inclusions, validity and surcharge basis stated clearly, so you can compare like for like. Rates move with the market and depend on your origin port, volume and timing, so ask us for a current quote built around your shipment.
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Related reading: peak season surcharges, blank sailings and schedule reliability, vessel rollover, and LCL vs FCL. See our services, the China sourcing agent service and our shop, or contact us for a quote.
