Market evolution: Halogen elements (CN 2801) — 2015–2025

Introduction

This report examines the trade dynamics of combined nomenclature code 2801, covering fluorine, chlorine, bromine and iodine, traded by the European Union with non-EU countries over the 2015–2025 period. The product heading bundles three sub-categories: chlorine (280110), iodine (280120), and fluorine/bromine (280130). Over the decade, EU trade in these halogen elements underwent a striking transformation: physical volumes contracted sharply while unit prices surged, reshaping the trade balance, deepening import dependence, and increasing supplier concentration. This report analyses these shifts in three sections, drawing on trade value, volume, price, partner, and production data.

1. Shrinking Volumes, Surging Prices: A Decade of Divergence

EU export volumes fell by nearly 60 % while export values rose by 84 %

Between 2015 and 2025, EU exports of halogen elements dropped from 67,800 t to 27,371 t (−59.6 %), yet export value climbed from €77.7 M to €142.9 M (+83.9 %). This divergence is entirely explained by a 355.6 % rise in the average export unit price, which went from €1,146/t to €5,220/t.

Import volumes contracted even more steeply in relative terms

EU imports followed a similar pattern. Volumes fell from 36,567 t to 17,779 t (−51.4 %), while import value more than doubled from €210.7 M to €454.6 M (+115.7 %). The average import unit price rose from €5,763/t to €25,571/t (+343.7 %), a rate comparable to that of exports.

The composition shift toward high-value iodine amplifies aggregate price growth

A key driver of the dramatic aggregate price increase is the changing product-mix. In imports, fluorine/bromine (280130) went from 73 % of volume (26,864 t) to 58 % (10,296 t), while iodine's share rose from 18 % (6,551 t) to 40 % (7,139 t). Since iodine's unit price is an order of magnitude higher than that of fluorine/bromine or chlorine, this compositional shift mechanically inflates the weighted average price. The same logic applies on the export side, where chlorine's volume share fell from 95 % to 91 % of total exports.

Domestic EU production declined in parallel

EU production volumes contracted by 49.5 % (from 5,543 t to 2,800 t reported in thousands of kg) and production value fell by 19.4 % (from €749 M to €603 M). The steeper decline in volume than in value again reflects rising unit prices within domestic production, but the contraction signals that EU-based manufacturing capacity for halogens has been shrinking.

2. Iodine: The Value King of EU Halogen Trade

Iodine accounts for over 90 % of both import and export value

In 2025, iodine (280120) represented €423.1 M of the €454.6 M in total import value (93.1 %) and €128.4 M of the €142.9 M in total export value (89.9 %). By contrast, chlorine (280110) — which dominates trade by volume — contributed only €0.8 M to imports and €12.8 M to exports in value terms.

Chile is the EU's primary iodine supplier and saw the largest absolute growth

Among import partners, Chile — the world's dominant iodine producer — supplied €107.1 M in 2015 and €307.3 M in 2025 (+186.9 %), making it by far the largest single source. Japan (€34.5 M → €74.7 M, +116.7 %) and the United States (€18.4 M → €38.9 M, +111.5 %) followed as secondary suppliers. These three countries together account for the vast majority of EU iodine imports.

EU iodine imports grew in both volume and price, unlike other sub-products

Across the three sub-categories, only iodine saw import volumes increase over the period (from 6,551 t to 7,139 t, +8.9 %). Fluorine/bromine imports fell from 26,864 t to 10,296 t (−61.7 %), and chlorine imports collapsed from 3,152 t to 345 t (−89.1 %). Meanwhile, iodine unit prices roughly doubled (€25,630/t → €59,272/t), driving the bulk of the overall import value increase.

The EU trade deficit widened predominantly on the iodine account

The EU's trade balance for CN 2801 deteriorated from −€133.0 M in 2015 to −€311.7 M in 2025 (−134.3 %). Given that iodine represents over 90 % of both imports and exports by value, the widening deficit is primarily a story of iodine: the EU imports substantially more iodine value than it exports, and the unit-price differential (imports at €59,272/t vs. exports at €59,847/t in 2025, nearly identical) confirms that the deficit is a volume gap rather than a price-disadvantage issue.

3. Deepening Import Dependence and Rising Supply Concentration

Net import reliance nearly tripled over the decade

The EU's net import reliance rose from 11.4 % in 2015 to 33.6 % in 2025 (+194.7 %). This means that, in net terms, the EU now depends on external sources for roughly one-third of its halogen consumption by value — up from about one-ninth at the start of the period. Trade intensity also rose from 18.2 % to 62.5 %, and export propensity from 4.2 % to 31.7 %, indicating that EU production has become more export-oriented in relative terms even as absolute output declined.

Supplier concentration increased markedly on both the import and export sides

The Herfindahl-Hirschman Index (HHI) for imports by value rose from 3,129 to 4,945 (+58.0 %), and for exports from 2,646 to 5,043 (+90.6 %). Both readings are well above the 2,500 threshold generally considered to indicate a highly concentrated market. On the import side, this reflects the growing dominance of Chile (which alone accounts for 67.6 % of import value in 2025). On the export side, Belgium's share rose to €116.4 M (81.4 % of total EU exports), up from €60.6 M (78.0 %) in 2015, consolidating its role as the EU's main halogen re-exporter.

Belgium dominates intra-EU halogen trade, while the Netherlands surged in imports

Looking at EU Member State reporters, Belgium was the top exporter throughout (€60.6 M → €116.4 M, +92.1 %). The Netherlands experienced an extraordinary surge in imports, jumping from €26.4 M to €252.1 M (+855.4 %), overtaking Belgium (which fell from €105.3 M to €38.2 M) as the leading EU import gateway by 2025. Germany (€29.5 M → €70.9 M, +140.3 %) and Italy (€26.9 M → €62.4 M, +132.1 %) also saw large import increases, reflecting growing downstream demand for iodine in pharmaceutical and chemical applications.

Supply-side volatility underscores concentration risks

The volatility analysis reveals that several key partners show high variability in trade values. The United Kingdom displayed the highest coefficient of variation on both the import side (CV = 1.90) and export side (CV = 1.53), consistent with the disruption caused by Brexit — UK imports into the EU fell from €22.0 M to €0.4 M (−95.2 %). Türkiye (CV = 1.60) and India (CV = 1.21) on the import side, and China (CV = 1.51) and India (CV = 1.29) on the export side, also showed significant instability. Notably, price shocks were detected for EU–UK trade (both directions, centred on 2018–2019) and for EU imports from Jordan (2022), the latter possibly linked to energy-cost spikes during the post-pandemic period.

Belgium stands alone as the only EU Member State with a strong comparative advantage in halogens

The specialisation analysis for 2025 shows Belgium with a Revealed Symmetric Comparative Advantage (RSCA) of 0.80 and an RCA of 8.88, far ahead of all other Member States. The Netherlands (RSCA = −0.18, RCA = 0.69) and France (RSCA = −0.46, RCA = 0.37) have negative or marginal RSCA values, indicating they are net importers. This confirms that EU halogen export capacity is geographically concentrated in a single Member State.

Conclusion

Over the 2015–2025 period, the EU's trade in halogen elements (CN 2801) has been characterised by a fundamental rebalancing: physical trade volumes have roughly halved, while trade values have more than doubled, driven primarily by steep unit-price increases — especially for iodine. The EU's trade deficit widened to −€312 M in 2025, with iodine accounting for over 90 % of both import and export value. Net import reliance has tripled to 33.6 %, domestic production has contracted by half in volume, and supplier concentration — particularly the dominance of Chile for iodine imports — has intensified. These trends point to a market that has become structurally more dependent on external supply and more exposed to price and concentration risks, even as the EU's remaining export capacity has increasingly concentrated in Belgium.