Market evolution: Other styrenic polymers (CN 390390) — 2015–2025

Introduction

This report examines the evolution of EU trade in Polymers of styrene, in primary forms (excl. polystyrene, styrene-acrylonitrile copolymers "SAN" and acrylonitrile-butadiene-styrene "ABS") (customs code 390390) over the period 2015–2025. This residual heading under CN 3903 covers a heterogeneous family of styrenic polymers—including styrene-allyl alcohol copolymers (39039010), brominated polystyrene (39039020), and all other styrenic polymers not elsewhere classified (39039090). As such, it captures niche and specialty products rather than the bulk commodity polymers covered by sibling codes 390311, 390320, and 390330.

The European Union is a structural net exporter of these products: over the full period, exports consistently exceeded imports in both value and volume. However, the decade 2015–2025 was marked by a pronounced erosion of this advantage. Three major dynamics stand out: (1) a sustained contraction in export volumes and a narrowing trade surplus; (2) a significant geographic reorientation of trade flows, with traditional partners losing ground to Asian markets; and (3) a major price shock in 2022 that reshaped the value landscape of imports. The following sections detail each of these dynamics.

1. The Erosion of the EU's Export Advantage: Falling Volumes, Rising Prices, and a Narrowing Trade Surplus

The most prominent structural trend over the decade is the progressive decline of EU export volumes and the concurrent narrowing of the trade surplus. While the EU remains a net exporter, the margin has shrunk considerably.

1.1 Export volumes fell by nearly 30% while import volumes were broadly stable

Between 2015 and 2025, EU exports of CN 390390 declined from 297,036 tonnes to 208,454 tonnes, a drop of 29.8%. Import volumes, by contrast, were relatively resilient: they rose slightly from 78,605 tonnes in 2015 to 82,102 tonnes in 2025 (+4.4%). The decline in export volumes was not linear—it accelerated notably after 2021, when volumes stood at 339,086 tonnes before falling sharply to 278,555 tonnes in 2022 and continuing down to 208,454 tonnes by 2025.

The trade balance in value terms peaked at €347.5 million around 2021 before falling to €166.4 million in 2025—a contraction of 32.4% over the decade and more than 52% from peak. This signals that the EU's competitive position in this product family, while still positive, has materially weakened.

1.2 Unit values diverged: export prices rose faster than import prices

A key nuance in the value data is the divergent price trajectory. EU export prices increased from €1,487/t in 2015 to €1,819/t in 2025 (+22.3%), with a peak of €2,110/t in 2022. Import prices, starting from a much higher base (€2,490/t in 2015), rose more modestly to €2,592/t (+4.1%). This persistent price premium on imports—roughly €800/t higher than exports throughout the period—suggests that the EU primarily imports higher-value specialty grades (likely the brominated polystyrene and styrene-allyl alcohol copolymers at the 8-digit level), while exporting larger volumes of lower-unit-value products in the catch-all subheading 39039090.

1.3 EU production volumes grew, but production value collapsed

EU domestic production of CN 390390 in quantity terms increased from 600 million kg to 657.4 million kg (+9.6%), yet the corresponding production value fell from an estimated €1.0 billion to €606.3 million (−39.4%). This disconnect implies a substantial decline in domestic selling prices for these polymers over the decade—consistent with the global trend of overcapacity in styrenic chains and weakening margins for European producers facing competition from Middle Eastern and Asian capacity additions.

2. Geographic Reorientation: The Rise of Asia and the Retreat from Russia and the United Kingdom

The 2015–2025 period witnessed a significant reshuffling of EU trade partners for CN 390390, driven by geopolitical events (notably sanctions on Russia and Brexit), structural shifts in Asian petrochemical capacity, and evolving demand patterns.

2.1 Imports: South Korea consolidated its lead; China emerged as a fast-growing supplier

Among EU import partners, South Korea grew from €42.1 million to €71.1 million (+68.8%), becoming the single largest supplier by 2025—displacing the United States, which fell from €76.4 million to €45.5 million (−40.4%). The most dramatic shift, however, came from China, whose exports to the EU surged from €6.0 million to €23.0 million—a remarkable +279.6% increase. Türkiye also nearly tripled its shipments (+141.9%), and Israel grew by 58.9%.

The decline in UK-origin imports (−68.4%) is consistent with post-Brexit trade friction and the gradual reorientation of supply chains away from the UK. The US decline, while substantial, remains relative: the US was still the second-largest supplier in 2025.

2.2 Exports: Russia collapsed, Türkiye endured, and China became a growth market

On the export side, the most striking change was the near-total collapse of exports to the Russian Federation—from €27.8 million in 2015 to just €7.7 million in 2025 (−72.3%). This is almost certainly linked to EU sanctions regimes following the 2022 invasion of Ukraine. Exports to the UK also declined sharply (−39.7%, from €75.5 million to €45.5 million), a trajectory consistent with Brexit-related trade diversion.

Against this backdrop, the surge in EU exports to China (+95.5%, from €28.1 million to €54.9 million) stands out as a notable bright spot. China thus climbed to become the third-largest export destination, almost level with the UK. This likely reflects growing Chinese demand for specialty styrenic grades in electronics, automotive, and advanced manufacturing applications.

2.3 Geographical concentration of imports decreased, while intra-EU specialisation was led by Belgium

The Herfindahl-Hirschman Index (HHI) for import partners by value declined from 2,205 to 1,900 (−13.8%), indicating that import sources became more diversified over the period—consistent with the rise of multiple Asian suppliers alongside the decline of traditional US and UK dominance. The export HHI remained low (from 931 to 891), reflecting an already well-diversified export portfolio.

Within the EU, Belgium stood out as the most specialised exporter (RCA of 4.33, RSCA of 0.62), accounting for 36.6% of EU production share in this product family—likely reflecting the concentration of styrenic polymer production capacity in the Antwerp–Rotterdam petrochemical cluster. Germany and the Netherlands maintained RCA values near parity (≈1.0), while France was slightly below (RCA 0.87).

3. The 2022 Price Shock: A Watershed Moment for Import Costs and Market Volatility

The year 2022 emerged as a clear inflection point across virtually every dimension of CN 390390 trade, driven by the global energy crisis, post-pandemic supply chain disruptions, and the onset of geopolitical sanctions.

3.1 Major price shocks were detected across key import suppliers in 2022

The volatility analysis identified three significant price shock events, all centred on 2022:

The US import shock is particularly consequential given that the US accounted for 30% of EU import value at the time. China and Israel saw even larger percentage price jumps, though from smaller bases. These shocks likely reflect the surge in energy and raw material costs (benzene, styrene monomer) that rippled through the styrenic value chain in 2021–2022, compounded by logistics bottlenecks.

3.2 Volatility profiles differed markedly across partners

The coefficient of variation for import values reveals a wide dispersion of supply reliability across partners:

• Low volatility (stable suppliers): South Korea (CV 0.16), Israel (0.18)
• Moderate volatility: Singapore (0.25), Taiwan (0.22), Türkiye (0.33), US (0.36)
• High volatility: China (0.67), Mexico (0.73), Iran (0.81)

China's high volatility is notable: while it is a fast-growing supplier, its import flows have been highly erratic, making it an unreliable source for steady procurement planning. Iran and Mexico, despite their volatility, represent marginal trade volumes. Among export partners, flows to Israel (CV 0.15) and the UK (CV 0.17) were the most stable, while Malaysia (CV 0.57) and Egypt (CV 0.42) showed more erratic patterns.

3.3 The 2022 shock coincided with a peak in trade intensity and a subsequent correction

EU trade intensity for CN 390390 rose dramatically from 37.3% in 2015 to over 101% in 2022 before settling at 81.5% in 2025. Export propensity followed a similar arc, rising from 26.2% to over 102% at peak before declining to 74.9%. These peaks likely reflect the combination of elevated prices (inflating the numerator) and temporarily disrupted domestic demand (compressing the denominator) during 2022. The subsequent normalisation, while partial, suggests a degree of market adjustment.

The net import reliance metric remained deeply negative throughout (indicating net export status), but the trajectory is noteworthy: it moved from −9.2% in 2015 to a trough of −209.3% (the strongest net export position) before settling at −64.1% in 2025. This widening in absolute terms—despite the decline in export volumes—reflects the price-driven value expansion of the mid-period, which has only partially unwound.

Conclusion

The EU's trade in other styrenic polymers (CN 390390) over 2015–2025 tells a story of structural adjustment under multiple pressures. The EU remains a significant net exporter, but its competitive position has eroded: export volumes have contracted by nearly 30%, the trade surplus has halved from its peak, and domestic production value has collapsed despite growing output—pointing to a sustained margin squeeze.

Geographically, the trade map has been redrawn. Russia and the UK, once among the EU's top five export markets, have seen dramatic declines—the former due to sanctions, the latter due to Brexit. On the import side, China has emerged as the fastest-growing supplier (+279.6%), while South Korea has overtaken the United States as the leading source. These shifts signal a broader reorientation of the styrenic supply chain towards Asia.

The 2022 energy and commodity price shock left a lasting imprint, with major price spikes detected across the US, Chinese, and Israeli import channels. While prices have partially normalised, the volatility profiles of newer suppliers—particularly China—suggest that the diversification of EU supply sources carries its own risks. Going forward, the interplay between European energy cost competitiveness, Asian capacity expansion, and the EU's evolving trade policy framework will be the key determinants of how this market segment develops.