Market evolution: Other aquatic invertebrates (CN 0308) — 2015–2025

Introduction

This report examines the trade dynamics of CN 0308, a customs category covering aquatic invertebrates other than crustaceans and molluscs—primarily sea cucumbers, sea urchins, jellyfish, and other niche marine products. Traded in live, fresh, chilled, frozen, dried, salted, or smoked forms, these products occupy a distinctive niche in the EU seafood market, catering to specific culinary traditions (notably East Asian cuisine) and, in some cases, pharmaceutical or cosmetic applications. Over the 2015–2025 period, the EU trade in this product has undergone a marked structural transformation: exports have declined sharply in volume while rising in unit value, imports have shifted toward new dominant suppliers, and the trade deficit has widened significantly. EU domestic production, meanwhile, has grown robustly in both volume and value. Three main dynamics stand out: a reconfiguration of the EU's product mix, a substantial realignment of sourcing and export partners, and pronounced price shocks linked to supply-chain disruptions.

1. From Volume to Value: The EU's Export Transformation and Growing Import Dependency

1.1 EU exports have collapsed in volume but surged in unit price

Between 2015 and 2025, EU extra-EU exports of CN 0308 fell from 1,001 tonnes to just 214 tonnes (−78.6%), and from €7.45 million to €4.94 million in value (−33.7%). However, the average export price soared from €7,437 per tonne to €23,022 per tonne (+209.5%). This indicates a fundamental shift: the EU is exporting far less of this product, but what it does export commands a dramatically higher price—suggesting a move toward premium, niche, or value-added segments.

1.2 Imports have held steady in volume but grown strongly in value

EU imports tell a different story. Volume declined more modestly, from 564 tonnes to 447 tonnes (−20.8%), but import value grew from €10.42 million to €14.19 million (+36.2%). The average import price rose from €18,468/t to €31,772/t (+72.0%). The EU therefore remains a significant importer, but increasingly at higher price points—reflecting either scarcity-driven inflation or a shift toward higher-value product forms.

1.3 The trade deficit has widened substantially

The EU's trade deficit in CN 0308 expanded from −€2.98 million in 2015 to −€9.26 million in 2025, a deterioration of 211.1%. In 2018, the balance briefly turned positive at +€2.01 million, driven by a spike in exports, but the surplus was short-lived. By the early 2020s, the deficit had deepened to as much as −€14.86 million (2022), before moderating slightly. This structural deficit underscores the EU's position as a net importer of these niche aquatic invertebrates, with net import reliance consistently at −62.4% over the period.

1.4 EU production has grown, but not enough to close the gap

EU domestic production of CN 0308 increased by 28.9% in volume (from 226,655 tonnes to 292,195 tonnes) and by 60.8% in value (from €1.23 billion to €1.98 billion). Despite this growth, the expanding deficit and rising import prices suggest that EU production is not keeping pace with demand for specific sub-products—particularly frozen sea urchins and processed sea cucumbers—that are difficult to source domestically.

2. A Market in Flux: Realignment of Trading Partners and Product Segments

2.1 Frozen sea urchins have become the EU's dominant import by value

A closer look at the product segment breakdown reveals a dramatic shift in the composition of EU imports. Frozen sea urchins (CN 030822) surged from €754,000 in 2017 (first available data) to €5.30 million in 2025, becoming the single largest import category by value. This 602% increase reflects growing European demand for uni (sea urchin gonads), particularly in high-end gastronomy. Meanwhile, imports of smoked/dried/preserved sea urchins (030829) collapsed from €1.82 million to just €17,000, indicating a near-complete shift from preserved to frozen formats.

2.2 Sea cucumber exports have collapsed; "other invertebrates" exports have surged

On the export side, the product mix has shifted even more dramatically. Sea cucumbers were once the EU's primary export: preserved sea cucumbers (030819) alone accounted for €6.11 million in exports in 2015. By 2025, this had fallen to just €1.53 million (−75%). Frozen sea cucumber (030812) exports followed a similar trajectory, peaking at €8.60 million in 2017 before collapsing to €279,000 in 2025. In contrast, the catch-all category of "other aquatic invertebrates" (030890) grew from €355,000 to €2.89 million in export value (+713%), and its price per tonne tripled from €11,696 to €30,063.

2.3 Traditional export markets have evaporated; new ones have emerged

The partner landscape for EU exports has been thoroughly reshaped:

• Decline of East Asian destinations: Exports to Taiwan fell from €1.35 million to €875 (−99.9%), to South Korea from €254,000 to €158 (−99.9%), and to China from €611,000 to €89,000 (−85.5%). These three markets, which together absorbed over €2.2 million in 2015, have effectively disappeared.
• Hong Kong remains the top destination but is shrinking: Exports to Hong Kong declined from €2.70 million to €1.28 million (−52.8%), though it still accounts for roughly one-quarter of EU export value.
• Malaysia has surged: From just €1,152 in 2015 to €278,000 in 2025, Malaysia has become a notable and growing destination, likely driven by demand for sea cucumbers in the Chinese diaspora market.
• United States declined sharply: Exports to the US fell from €1.39 million to €218,000 (−84.3%).

2.4 Import sourcing has shifted from the UK and China toward Iceland, Indonesia, and Türkiye

The import partner landscape has undergone an equally dramatic realignment:

• United Kingdom collapsed as a source: EU imports from the UK fell from €2.30 million to just €23,000 (−99.0%). This is almost certainly a consequence of Brexit, which introduced new customs barriers and regulatory divergence for a product category with stringent food safety requirements.
• Türkiye emerged from nowhere: Imports from Türkiye surged from a negligible €1,820 in 2015 to €4.00 million in 2025—a staggering increase. This likely reflects Türkiye's role as a growing supplier of frozen sea urchins to European markets, benefiting from geographic proximity and competitive pricing.
• Iceland nearly doubled: Imports from Iceland grew from €1.04 million to €2.53 million (+144.1%), consistent with Iceland's established role as a supplier of wild-caught marine products.
• Indonesia remained the largest single supplier: At €4.52 million in 2025 (up from €3.02 million), Indonesia accounts for roughly one-third of EU import value—overwhelmingly in sea cucumbers and other tropical invertebrates.
• China's role diminished: Despite being a traditional supplier, Chinese imports fell from €632,000 to €320,000 (−49.4%).

2.5 Within the EU, Italy and the Netherlands have gained share as importers

Looking at EU Member States, Italy's imports grew from €1.51 million to €4.85 million (+221.6%), making it the largest EU importer by value in 2025, followed by Germany (€3.12 million) and the Netherlands (€1.51 million, +188.3%). On the export side, Greece remained the top EU exporter but saw its exports decline from €5.71 million to €1.40 million (−75.6%), while the Netherlands surged from almost nothing to €2.15 million—suggesting the country has become a re-export hub.

3. Price Volatility, Supply Shocks, and Growing Concentration

3.1 Import prices have surged across most product segments

Across nearly all sub-categories, EU import prices have risen substantially over the period:

The most dramatic price inflation occurred in frozen sea urchins (030822), where import prices more than doubled from €37,579/t in 2017 to €81,897/t in 2025—reflecting strong demand for a product with limited and seasonally constrained global supply.

3.2 Export prices for preserved sea cucumbers have been wildly volatile

The export price trajectory for preserved sea cucumbers (030819) is particularly striking. It rose from €7,382/t in 2015 to €64,800/t in 2018—a nearly nine-fold increase in three years—before fluctuating and settling at €28,328/t in 2025. Similarly, the "other invertebrates" catch-all (030890) saw export prices climb from €11,696/t to €30,063/t (+157%). These price swings likely reflect the highly concentrated and thin nature of these niche markets, where small shifts in supply or demand can move prices dramatically.

3.3 Specific supply shocks have been identified in the data

The volatility analysis identifies three significant shock events:

The 2020 China export price shock (+194.6%) coincides with the early COVID-19 pandemic, which severely disrupted Chinese seafood processing and logistics. The 2022 Indonesia import price shock (+68.0%) affects the EU's single largest import partner and may reflect post-pandemic supply tightening, rising energy costs, and increased global demand for sea cucumbers. Partners with the highest volatility coefficients include Greenland (CV 2.41), the United States (CV 1.98), and Türkiye (CV 1.36) on the import side, and Canada (CV 2.05), South Korea (CV 1.90), and Taiwan (CV 1.47) on the export side.

3.4 Import concentration has increased, raising supply-chain risk

The Herfindahl-Hirschman Index (HHI) for EU imports rose from 1,609 to 2,186 (+35.8%) in value terms, moving the market from a moderately concentrated to a more concentrated structure. This is driven by the growing dominance of Indonesia and the emergence of Türkiye, combined with the disappearance of the UK as a source. For exports, the HHI remained relatively stable (from 2,198 to 2,287, +4.0%), still indicating a concentrated market—Hong Kong alone accounts for roughly one-quarter of EU export value.

3.5 Specialisation is concentrated in Mediterranean and Atlantic EU members

The revealed comparative advantage analysis for 2025 shows that CN 0308 trade is highly specialised in a handful of EU Member States:

Spain alone accounts for nearly one-third of EU CN 0308 production, while Croatia and Portugal show the strongest revealed comparative advantages—likely reflecting their coastal harvesting traditions for sea urchins and other invertebrates. By contrast, landlocked and northern EU states (Slovakia, Austria, Ireland, Sweden) show negligible specialisation.

Conclusion

The EU market for aquatic invertebrates other than crustaceans and molluscs (CN 0308) has undergone a profound transformation between 2015 and 2025. The most striking feature is the EU's pivot from being a significant volume exporter—driven by sea cucumbers—to a market increasingly defined by high-value, low-volume trade in both directions. Export volumes have fallen by nearly 80%, yet unit values have tripled, suggesting a retreat to premium niche products. On the import side, the EU has become more dependent on fewer suppliers—particularly Indonesia and the newly prominent Türkiye—while the UK has virtually disappeared as a source, almost certainly a Brexit effect. Prices have risen sharply across most segments, with frozen sea urchins now commanding over €80,000 per tonne at import, reflecting both scarcity and strong gastronomic demand. The growing concentration of import sourcing (HHI rising 36%) represents a potential vulnerability, as evidenced by the significant price shocks detected in 2020–2022. EU domestic production has grown robustly, but not sufficiently to offset the widening trade deficit, which now stands at over €9 million. For policymakers and market participants, the key risks lie in the thinness of these niche markets, the geographic concentration of supply, and the pronounced price volatility that characterises trade in these specialised marine products.