Ukraine’s Danube export routes face limits from low water, port queues and war risks, leaving grain shipments dependent on Black Sea access.
The physical system kept signaling its limits while the diplomats talked. On November 9, about 95 vessels were waiting at the anchorage of Romania's Sulina Canal, the main seaward exit from the lower Danube, with roughly 30 more queued to leave the river. On November 10 in Varna, European Commission President Ursula von der Leyen pledged €50 million, about US$56.1 million at the European Central Bank's reference rate of US$1.1214 per euro on November 10, to fast-track a Black Sea Maritime Security Hub that Brussels aims to have operational by 2027. The evidence points to one conclusion. The Danube bypass that carried Ukraine through 2022 and 2023 has hit a ceiling set by three constraints at once: a river at record lows, a single canal mouth controlled by another state, and war-risk pricing that since October has covered the bypass's own exit waters. Investment can make the bypass sturdier, but only safe access to the deep-water ports around Odesa can change the volumes, and that depends on a maritime arrangement Russia has so far refused.
The monthly data on Ukraine's grain exports show how fast the loss arrived once those ports stopped working. In July, the first month of the 2026/27 marketing year, Ukraine exported 2.601 million tonnes of grains and pulses, up 54.9 percent on a year earlier. Ships stopped calling at Ukraine's Black Sea ports from July 21, and August exports fell to 981,000 tonnes. The bypass then lifted shipments to 1.488 million tonnes in September, still 36.7 percent below the previous September, before they slipped to 1.256 million tonnes in October, down 49.5 percent. By November 6, season-to-date exports stood at 6.776 million tonnes, 31.3 percent below the same point a year earlier.
Chart 1: Ukraine's grain exports halved once the deep-water ports went quiet. Sources: Ministry of Agrarian Policy and Food of Ukraine data as reported by Interfax-Ukraine and UkrAgroConsult; October as reported by AgroTimes via UkrAgroConsult. Prior-year values for August to October are derived from the stated declines and season-to-date totals. First-reported figures, subject to revision. Data cut-off: November 6, 2026.
The route breakdown explains why September's recovery stalled at about half of normal. Ukraine shipped 2.4 million tonnes of agricultural products in September, 46 percent of its potential. Ukraine's Ministry of Agrarian Policy and Food (Міністерство аграрної політики та продовольства України) reported that 1.3 million tonnes, or 54 percent, went through the Danube, 993,000 tonnes by rail and 120,000 tonnes by road. Vysotskyi called 45 to 50 percent "the objective maximum using current routes" and put the cost of the ports' closure at about 30 million tonnes of exports worth about US$30 billion in the current marketing year. In his November remarks he added that the Danube and rail routes can each replace no more than 20 to 25 percent of the capacity of the Greater Odesa ports, and that volumes are lower than in 2022 and 2023 because Danube logistics were not then under such heavy attack.
Chart 2: In September the bypass moved 46 percent of what Ukraine needed to ship. Source: Agriculture Minister Taras Vysotskyi, as reported on October 2, 2026. The potential of about 5.2 million tonnes is an IndraStra derivation (2.4 million tonnes divided by 0.46). Data cut-off: October 2, 2026.
Hydrology is the most basic limit on that 20 to 25 percent. A river corridor loses capacity whenever its water drops, however much terminal space waits downstream, and this autumn Danube water levels fell to the lowest on record at Ruse. On October 21, the head of Bulgaria's Danube maintenance agency, Ivelin Zanev, reported the river at Ruse at minus 145 centimeters against the gauge zero, 72 centimeters below the previous record low set in 2003. By November 8, the level had risen to minus 71 centimeters, although it remained close to the lowest readings on record. Vessel drafts in the critical Bulgarian–Romanian stretches are restricted to 1.80 meters, while regular cargo operations require more than 2.50 meters of water, according to a captain at Bulgaria's maritime administration. A November market assessment puts barge loadings at 25 to 50 percent of capacity. Constanța's terminals have room. As early as August, the head of one of the port's grain terminal operators said his terminal could take 20 percent more Ukrainian volume, but the low river limits how much grain arrives.
Beyond the river itself, throughput also depends on the canal mouth, where capacity is partly a matter of allocation decisions taken in Bucharest. After vessels bound for Ukrainian ports were found entering outside the priority queue, Romania's Sulina Canal administration reinstated 2022-era rules from August 17. Under them, 40 percent of available pilots serve Ukraine's Danube ports, 40 percent Romania's river ports and 20 percent Moldova's port of Giurgiulești. That split is a reasonable choice for a country moving its own large harvest, but it means part of Ukraine's export capacity is set by another state's rules. Weather closures add to the queue. After a week-long closure in mid-October the queue to enter Sulina reached about 150 vessels, and brokers estimate that two weeks of waiting can add about US$10 a tonne in demurrage. The table summarizes the physical and administrative limits that apply this month.
| Constraint | Latest reading | As of |
|---|---|---|
| Danube level at Ruse | −145 cm vs. gauge zero, about 72 cm below the 2003 record | October 21, 2026 |
| Danube level at Ruse | −71 cm, still near record lows | November 8, 2026 |
| Critical Bulgarian–Romanian sections | Draft limited to 1.80 m; more than 2.50 m of water needed for regular cargo | November 8, 2026 |
| Barge loading | 25–50 percent of capacity | Early November 2026 |
| Sulina Canal queue | About 95 vessels waiting to enter and about 30 to exit; at least 10 days to clear | November 9, 2026 |
| Sulina pilot allocation | 40% Ukrainian ports, 40% Romanian ports, 20% Giurgiulești | In force since August 17, 2026 |
| Ukrainian grain through Constanța | 1.03 million tonnes in January–September, against 321,000 tonnes a year earlier | End of September 2026 |
Table 1: The bypass is capped by water, queues and allocation rules. Sources: Ivelin Zanev via ruse.news; Bulgarian National Television; Atria Brokers in Miller Magazine; Danube logistics expert Kateryna Kononenko via UkrAgroConsult; Ukrzovnishtrans via LIGA.net; Constanța port authority data reported by Reuters. Data cut-off: November 10, 2026.
War risk is the newest of the constraints, and it changes how the whole bypass is priced. Until October, Romanian and Bulgarian waters were the relatively safe end of the bypass; since then, one maritime security consultancy has warned that they "should no longer be treated as safe by default." On October 5 the general cargo ship Royad Mammadov, carrying corn from the Danube port of Izmail to Italy, sank in Romania's exclusive economic zone (EEZ), killing two seafarers. President Volodymyr Zelenskyy said two Russian drones had struck the ship, while Romanian authorities did not immediately attribute a cause. A day later the Alfa Watan sank and the Able was hit in Bulgaria's EEZ, and a Reuters list of incidents records further strikes on cargo ships and tankers off both countries through October 28. In all, at least nine cargo ships were hit by naval drones near Romania and Bulgaria in October. Bucharest has accused Russia of "systematic" strikes on civilian ships but has not attributed individual attacks, citing the need for forensic evidence. Sofia has not blamed Russia, and Moscow has denied involvement. The campaign also runs the other way. Turkish-owned vessels have been hit by drones believed to have been launched by Ukraine, and cargo handling at some Russian Azov and Black Sea terminals fell by 95 to 100 percent in September. Over the weekend of November 7 and 8, Russia's defense ministry claimed strikes on several merchant ships near Odesa that it said were carrying military supplies; none has been independently verified.
Insurance markets turned that risk into a running cost, and they did so before the October attacks. On September 16, the London market's Joint War Committee extended its listed area to the whole Black Sea, excluding the territorial waters of every coastal state except Russia and Ukraine. The committee does not set prices, and the published indications are not a single series. They mix hull and cargo cover, different voyages and different dates, so the table lists them side by side rather than as a trend.
| Date | Indicator | Level |
|---|---|---|
| September 23, 2026, after the listing | Indicative additional premium for a Black Sea voyage, share of insured value | 0.10–0.20% |
| Two weeks to October 6, 2026 | Vessel war-risk rate, share of vessel value | 0.1% rising to 0.5% |
| Mid-October 2026 | Quoted rates on some Black Sea voyages | 0.6–1%, from 0.2–0.5% a week earlier |
| October 2026 | Cargo war-risk indications, Greater Odesa ports (Pivdennyi, Odesa, Chornomorsk) vs. Danube ports | About 3% vs. 0.70–1.00% |
| November 9, 2026 | Most exposed voyages, according to insurance market sources | As much as 20% of vessel value; most quotes substantially lower |
| November 9, 2026 | Container line war-risk surcharge (CMA CGM) | US$35 per twenty-foot equivalent unit |
Table 2: War-risk pricing has spread from Ukrainian ports to the whole sea. Sources: Beinsure; Marelis Navigation via UkrAgroConsult; report on the Insurance Association of Turkiye (TSB) statement; Atria Brokers in Miller Magazine; Splash247. Indications are not comparable across rows. Data cut-off: November 9, 2026.
The same expansion of maritime risk extends beyond commercial shipping to the Black Sea's energy infrastructure. Two of the vessels hit in mid-October were tankers, and in August a naval drone was spotted near Romania's Neptun Deep offshore gas project, which is due to make Romania the European Union's (EU) largest gas producer next year. Underwriters price the sea a vessel crosses, whatever it carries, so grain, oil and gas now pay the same risk premium.
Freight rates show the combined effect of low water, queues, risk and fuel. Barge rates from Reni and Izmail to Constanța rose from roughly US$20 a tonne in mid-July to around US$92 at the start of November, according to Atria Brokers, and coaster freight for wheat from Ukraine's Danube ports to Egypt rose from about US$30 to nearly US$120. On the Moldovan leg, barge freight from Giurgiulești to Constanța reached around US$75 a tonne, against US$15 to US$35 previously, with low water and higher fuel prices cited as causes. Fuel matters because bunker prices have stayed well above their pre-war levels since the outbreak of the Middle East war, according to Kpler, so the Danube surcharge sits on top of a higher global cost base.
Chart 3: Moving Danube grain now costs three to four times what it did in July. Sources: Atria Brokers in Miller Magazine, issue 203, November 2026; Splash247, October 9, 2026. Approximate broker indications, not a published index. Data cut-off: early November 2026.
Those freight costs come out of the price the farmer receives, which is where the economic damage shows. On October 23, delivered (cost, insurance and freight, or CIF) assessments for wheat in Egypt put French 11.5 percent protein wheat at US$303 a tonne, Ukrainian 11.5 percent wheat at US$312 and Russian 12.5 percent wheat shipped through the Baltic at US$324, with freight of US$35, US$120 and US$58 respectively. Netting freight out of the delivered price leaves an estimated US$192 a tonne for the Ukrainian cargo before insurance, against about US$268 for the French one. The same cost compression is evident at the farm gate. Pavlo Khaustov, head of analysis at Barva Invest, estimates that European corn prices of US$260 to US$270 a tonne translate into ex-farm prices of US$107 to US$133 for Ukrainian producers.
Chart 4: Freight, not grain, now sets the price of Ukrainian wheat in Egypt. Source: ASAP Agri and Atria Brokers delivered-price matrix, Miller Magazine, issue 203, November 2026. The price net of freight is an IndraStra derivation (CIF minus freight) and excludes insurance and other costs. Data cut-off: October 23, 2026.
The strongest objection to this argument is that the system is adapting and the world is coping. Ukraine's total agricultural exports held at 3.053 million tonnes in October, slightly above September, as higher sunflower oil shipments offset part of the fall in grain. Constanța handled 1.03 million tonnes of Ukrainian grain in the first nine months of 2026, more than three times the 321,000 tonnes a year earlier, and a London market source told Reuters that cover for Romanian voyages remains available, with "no withdrawal of capacity." Global prices have risen without spiking. Chicago wheat futures went from US$5.03 a bushel in October 2025 to US$6.03 in October 2026, and buyers are switching origins, with French wheat winning North African business and Argentina supplying Indonesia earlier than usual. That argument has merit. The global grain market is absorbing the shock better than it did in 2022, and the bypass is moving real volume. But the global market copes largely because the cost falls on Ukrainian farmers and on the importers most tied to Black Sea grain. Kpler finds that Russian and Ukrainian wheat exports in July to September were the lowest since 2012, with the Middle East and North Africa most exposed. The pressure will also grow. Corn exports usually rise to 2 to 3 million tonnes or more a month from November, and Khaustov said 950,000 tonnes this November would be a good result. Vysotskyi expects the winter wheat area to be about 15 percent smaller and warns that credit may not cover about half of the spring sowing.
A second argument is that money spent on strengthening the bypass is a better bet than waiting on Moscow, and the EU is already investing in that approach. Beyond the security hub, it has pledged €10 million (about US$11.2 million) each to Romania and Bulgaria for search and rescue, and Romania is selecting a contractor for river works under the joint Bulgarian–Romanian FAST Danube 2 project, which aims to keep the river navigable 94 percent of the year. That work is worth doing, but its timelines do not match this harvest. The hub is meant to be running in 2027, larger river structures would take years, and by the minister's own estimate no single alternative route can match more than a quarter of the Odesa ports. Investment makes the bypass more reliable. It cannot make the bypass large enough.
Diplomacy therefore remains the decisive variable for restoring export volumes, and the record of proposals for a maritime ceasefire is long but has produced no agreement. The table sets out where each initiative stood on November 11.
| Date | Actor | Step | Status |
|---|---|---|---|
| August 2026 | Turkey, Russia | Turkey proposes a moratorium; Russia rejects it on August 14 and rules out a return to the 2022–23 grain deal | Rejected |
| September 17, 2026 | Turkey | Draft memorandum on halting strikes on civilian ships sent to Moscow and Kyiv | No agreement |
| October 31, 2026 | United States | Secretary of State Marco Rubio says Washington is reviewing Turkish and Indian proposals for a limited Black Sea ceasefire | Under review |
| October 31, 2026 | Turkey, Ukraine | Presidents Recep Tayyip Erdoğan and Zelenskyy agree to work on a grain corridor | No details |
| November 9, 2026 | Russia | Envoy to the United Nations rejects "maritime truce" and other partial truces | Opposed |
| November 10, 2026 | Ukraine | Black Sea and energy ceasefire proposals submitted at Abu Dhabi | Awaiting Russia's response; talks continue November 11 |
| November 9–10, 2026 | European Union | €50 million for the security hub; €10 million each for Romanian and Bulgarian search and rescue | Pledged |
Table 3: Many proposals, no agreement yet. Sources: bne IntelliNews; Daily Sabah/AFP; Reuters via Investing.com; The National; Interfax-Ukraine; Euronews. Status as of November 11, 2026.
Russia's position is not only a refusal, and its own losses give a narrow deal some logic. Its wheat exports through the Baltic hit a record in September, yet total Russian wheat exports fell by more than 40 percent year on year, and Baltic terminals such as Vysotsk and Ust-Luga handle only about 300,000 and 500,000 tonnes a month. Both exporters are paying to keep the other's ships at risk. A narrowly drawn halt to attacks on commercial shipping and port infrastructure, open to monitoring, would serve both, as well as Turkey and India, which have proposed limited ceasefires, and grain importers such as Egypt. Moscow's public position, set out at the United Nations on November 9, treats any such pause as a gift to Kyiv. Planning cannot assume that position will change.
The practical agenda follows from that uncertainty. Kyiv and its EU partners would gain more from treating the bypass as permanent infrastructure than as an emergency valve. On the rail side, Khaustov argues that a single, mutually agreed plan on both sides of the border and covered transshipment at crossings would raise throughput sooner than new track. Ukraine and Romania have reason to review the Sulina allocation openly as the corn and Romanian harvests overlap, so that queue rules are seen as fair on both sides of the river. Importers in North Africa and the Middle East face a winter of higher delivered costs and should plan for fewer cargoes of Ukrainian corn. For negotiators, a commercial-shipping moratorium that includes energy terminals, and that Russia, Ukraine and Turkey can all verify, is the one measure in sight that would restore the missing half of Ukraine's export capacity.
Several outcomes are possible over the coming weeks. If Danube water levels keep rising, loading limits and barge rates should ease, without removing the ceiling the minister described. A Black Sea truce could come out of the Abu Dhabi talks, which continue on November 11, but Moscow's stated position argues against it. Still unclear is whether strikes in Romanian and Bulgarian waters will resume, and how insurers would price any new attack. The Constanța port authority's October figures, due this month, and Ukraine's November export count will show whether the bypass is holding at half of need or slipping below it. Any improvement in river conditions can ease the pressure, but it cannot restore the capacity lost with the closure of the deep-water ports. Until deep-water shipping resumes, the river will set the limit on Ukraine's grain exports.
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