GRI, PSS, and EBS are carrier-announced surcharge events that can move your freight cost by $100–$500 per TEU in a single month. If a customer quote is still live when a GRI takes effect, and your quote validity is longer than the GRI's notice period, you absorb the full difference. On a 100-TEU monthly volume at a $300 GRI, that's $30,000 in unplanned cost.
Most pricing desks learn this lesson once. This guide covers what each surcharge announcement means, how to track them, and how to structure your quote validity and terms to avoid margin erosion.
What is a GRI (General Rate Increase)?
A GRI is a carrier-issued announcement of a broad increase in base ocean freight rates on a trade lane or across trades. Carriers use GRIs to recover margin when contracted rates have fallen below their cost structure or when demand strengthens enough to support a rate reset.
GRI mechanics:
- Announced 30 days in advance (regulatory requirement in most jurisdictions)
- Effective on the first day of the month
- Range: $100–$500 per TEU on major trades
- Apply to spot bookings first; contracted cargo may be partially protected
How often do GRIs happen? On active trades (Trans-Pacific, Asia–Europe, India–Gulf), carriers announce GRIs 6–12 times per year. Not all stick.
GRI vs actual market rate:
| Period | Announced GRI | Market realisation |
|---|---|---|
| Oversupply (2019, 2023) | $200–$300 | $50–$120 |
| Balanced market (2024) | $150–$250 | $100–$180 |
| Tight market (2021–2022) | $300–$500 | $300–$500+ |
During 2021–2022, GRIs not only stuck but rates exceeded the announced increases as container shortages compounded. During 2023, most GRI announcements partially collapsed within 2 weeks as capacity returned.
Data source: Freightos Baltic Index (FBX) tracks actual market rates in real time. The gap between announced GRIs and FBX actuals is the best indicator of how much a GRI has held.
What is PSS (Peak Season Surcharge)?
PSS is a seasonal surcharge applied when ocean freight demand peaks, typically:
- May–August: Pre-back-to-school and holiday season, primarily on Trans-Pacific routes
- October–November: Pre-Chinese New Year inventory build on Asia trades
- February–March: Post-Chinese New Year restocking
PSS on the India–Europe trade typically runs $100–$200/TEU. On the Trans-Pacific trade (which most India NVOCCs route through), PSS can reach $250–$400/TEU.
Announcement timing: Carriers announce PSS 2–4 weeks before the effective date. Forwarders who've already quoted customers for the PSS window at non-PSS rates must honor those quotes at their own cost.
Practical rule: If you're quoting cargo likely to ship during June–August or October–November, shorten your quote validity to 7 days or add a conditional clause ("Subject to PSS applicable at time of booking").
What is EBS (Emergency Bunker Surcharge)?
EBS was introduced in the early 2000s as a temporary measure when fuel prices spiked outside the regular BAF review cycle. It's largely been replaced by:
- More frequent BAF review cycles (now monthly at most carriers)
- Floating BAF formulas tied to VLSFO price indices
EBS still appears occasionally — typically during sudden fuel price shocks (geopolitical events, refinery outages). When applied, it ranges from $50–$200/TEU with 7–14 days notice.
Current relevance: Post-IMO 2020, most carriers have migrated fuel recovery to BAF + LSS. EBS is uncommon but not extinct — watch for it on trades where carriers have less sophisticated surcharge mechanisms.
Other rate change events to track
| Event | Typical notice | Range | Impact |
|---|---|---|---|
| GRI | 30 days | $100–$500/TEU | High — applies to spot bookings |
| PSS | 2–4 weeks | $100–$300/TEU | High — seasonal, predictable window |
| EBS | 7–14 days | $50–$200/TEU | Medium — rare, event-driven |
| WRS (War Risk) | 7–14 days | $50–$200/TEU | High when geopolitical events affect routing |
| BAF update | Monthly | ±$20–$80/TEU vs prior month | Medium — regular, but cumulative |
| CIC (Container Imbalance) | 2–4 weeks | $50–$300/TEU | Variable — trade-lane specific |
How surcharge announcements erode pricing desk margins
The margin erosion mechanism is simple:
- Customer requests a quote on April 15 for a July shipment
- You quote $1,400/TEU all-in, valid 30 days
- On May 1, carrier announces a $250 GRI effective June 1
- Customer books on May 10 — still within your validity window
- Shipment prices at $1,650/TEU with the GRI
- You absorb $250/TEU
On a single 40'HC, that's $250 of direct margin loss. On a 20-container shipment, $5,000. On a forwarder handling 500 TEU/month, a single mismanaged GRI cycle can wipe $50,000–$100,000 from quarterly margin.
The fix:
| Strategy | Implementation |
|---|---|
| Shorten quote validity | 7–10 days for future shipments (not 30 days) |
| Add surcharge conditionality | "Quote subject to BAF/GRI applicable at time of B/L issuance" |
| Track announcement calendars | Subscribe to carrier bulletins and Freightos/Drewry alerts |
| Build a rate alert system | Automatic notification when BAF or GRI changes on active lanes |
How to track GRI and PSS announcements
Carrier portals: Most major carriers (MSC, Maersk, CMA CGM, Hapag-Lloyd, Evergreen) publish GRI bulletins on their freight news or circular sections. Sign up for email alerts.
Industry data services:
- Freightos Baltic Index (FBX): Real-time composite rate index across 12 major trade lanes
- Drewry World Container Index (WCI): Weekly rate benchmarks across 8 key corridors
- BIMCO Shipping Market Overview: Supply/demand forecasts that predict whether GRIs will stick
The problem with manual tracking: A pricing desk managing 8+ trade lanes receives 40–100 carrier announcements per quarter. Without a centralised system, critical announcements get missed.
Susea surfaces rate change events — GRIs, PSS windows, BAF updates — alongside your live rate database, so your pricing team knows immediately when a surcharge change affects an open quote.
Frequently asked questions
What is a GRI in ocean freight?
GRI stands for General Rate Increase. It is an announcement by ocean carriers of a broad increase in base freight rates across a trade lane, typically effective on the first day of a month. GRIs range from $100 to $500 per TEU and are announced 30 days in advance. Not all announced GRIs stick — market conditions determine how much actually holds.
What is PSS in shipping?
PSS stands for Peak Season Surcharge. Carriers apply PSS during periods of high demand — typically May through August and October through November. PSS ranges from $100 to $300 per TEU and is announced 2–4 weeks before its effective date.
What is EBS in ocean freight?
EBS stands for Emergency Bunker Surcharge. It was a temporary surcharge applied by carriers when fuel prices spiked sharply outside the regular BAF review cycle. EBS has largely been replaced by more sophisticated BAF mechanisms tied to fuel price indices.
How does a GRI affect a freight forwarder's margins?
A GRI directly compresses margin if a forwarder has already quoted a customer at a pre-GRI rate but the carrier charges the post-GRI rate. If the customer quote was valid for 30 days and the GRI takes effect on day 15, the forwarder absorbs the difference.
Do all GRI announcements actually take effect?
No. Carriers announce GRIs as a market signal, but whether the full amount sticks depends on demand and capacity. During oversupply periods, carriers announce $500 GRIs but may only achieve $100–$200 in the market. Monitoring the Freightos Baltic Index tells you how much has actually landed.