Market evolution: Folding boxboard (CN 48109230) — 2015–2025

Introduction

This report analyses the evolution of EU trade in multi-ply paper and paperboard with only one outer layer bleached, coated on one or both sides with kaolin or other inorganic substances (CN 48109230) over the period 2015–2025. This product, commonly known as folding boxboard, is widely used in packaging applications—particularly for food, pharmaceuticals, and consumer goods. It maps to PRODCOM code 17.12.79.55.

The period under review has been marked by several structural shifts: the EU has consolidated its position as a major net exporter, trade volumes have become increasingly concentrated among a smaller set of partners, and the 2022 commodity price shock left a visible imprint on unit values. Overall, EU exports rose from €870 million in 2015 to €1.59 billion in 2025 (+83.4% in value), while imports grew from €35 million to €115 million (+232.6%). The trade surplus widened from €835 million to €1.48 billion.

I. Price-led export expansion amid growing production capacity

The EU's export performance in folding boxboard over 2015–2025 was characterised by a striking divergence between value and volume growth. While export value surged by 83.4%, physical export volumes rose only 4.0%—from 1,167,794 tonnes to 1,214,253 tonnes. This implies that nearly all of the value increase was driven by rising unit export prices, which climbed from €745/t to €1,313/t (+76.4%).

EU production expanded substantially, underpinning export capacity

Behind the stable export volumes lies a significant expansion of domestic production. EU output of this product grew from 1.90 billion kg in 2015 to 2.75 billion kg in 2025 (+44.4% in quantity, +103.5% in value). At its peak, production reached 3.01 billion kg. This capacity expansion meant the EU could maintain its export volumes even as domestic and downstream demand absorbed a growing share of output.

The growing production base is reflected in rising export propensity, which increased from 29.1% to 47.5% over the period—indicating that a larger share of EU production was directed toward international markets. Trade intensity (the sum of imports and exports relative to production) similarly rose from 30.7% to 49.8%.

Sweden and Finland dominate the EU's export profile

The EU's export structure in this product is overwhelmingly concentrated in the Nordic paper-producing nations. In 2025:

Sweden alone accounted for roughly 74% of total EU exports in value terms in 2025. The specialisation data confirms that Sweden (RSCA: 0.93) and Finland (RSCA: 0.88) are by far the most specialised EU producers, reflecting their strong forest-resource endowments and established folding boxboard industries. Germany and France, while significant producers, have negative RSCA values, indicating they are net importers of this product on a comparative basis.

The EU's net exporter position strengthened considerably

The net import reliance indicator—negative values denote a net export position—moved from −36.6% in 2015 to −75.6% in 2025. At its strongest point (−144.2%), the EU's net exporter status was even more pronounced. This trajectory underscores the EU's role as a structural supplier to global markets in folding boxboard, with the trade surplus widening from €835 million to €1.48 billion.

II. Serbia's dramatic rise and the shifting geography of EU trade flows

Perhaps the most striking single development over the 2015–2025 period was the emergence of Serbia as the EU's most dynamic trade partner for folding boxboard—both on the export and import side. This section examines the restructuring of trade relationships and its implications.

Serbia became the EU's fastest-growing export market by a wide margin

In 2015, EU exports to Serbia stood at €49 million. By 2025, they had surged to €613 million—an increase of 1,157%. Serbia thus went from being a modest destination to the single largest export market for EU folding boxboard, overtaking long-established partners. This extraordinary growth likely reflects Serbia's role as a manufacturing hub for packaging serving the broader Balkan and Central European markets, as well as the country's deepening integration with the EU supply chain.

The traditional export portfolio remained substantial but showed divergent trends

The United States remained a major and growing market (+81.1%), while exports to the United Kingdom and Türkiye were essentially flat. Mexico saw a notable decline (−45.1%), possibly reflecting competitive pressures or supply-chain reorientation.

EU imports diversified, with Serbia and China gaining ground

On the import side, the picture is smaller in absolute terms but no less dynamic. Serbia was also the largest source of EU imports by 2025 (€80 million, up from €19 million in 2015, +316.5%), followed by China (€14 million, +291.7%). The United Kingdom, which was the third-largest import source in 2015 (€5.3 million), saw imports fall to €1.6 million (−69.2%)—a decline consistent with post-Brexit supply-chain adjustments.

New Zealand's appearance as a significant import source (from nearly zero to €3.2 million) suggests a new supply route may have emerged, possibly linked to specialised niche producers.

Trade concentration increased, particularly on the export side

The Herfindahl-Hirschman Index (HHI) for export concentration more than doubled—from 956 in 2015 to 1,998 in 2025 (+109%). This is largely attributable to Serbia's growing share. Import concentration also rose, from 3,528 to 4,979 (+41.1%). While the import market was already more concentrated, the increase on both sides points to a narrowing of trade relationships—increasing efficiency but also raising potential vulnerability to supply disruptions from key partners.

III. The 2022 price shock and its lasting effects on market dynamics

The year 2022 stands out as a pivotal moment in the 2015–2025 period, marked by sharp price movements that affected multiple trade flows simultaneously. This section examines the nature of these shocks and the broader volatility landscape.

Multiple price shocks were detected in 2022 across key partners

The shock detection analysis identifies three significant price shocks, all centred on 2022:

The most pronounced shock was the +38.5% price spike in EU exports to the United States in 2022, with an abnormality score of 37.1—indicating an extreme deviation from the historical trend. On the import side, Serbia saw a +78.2% jump in unit import prices, which is remarkable given that Serbia accounted for 73.1% of EU import value in that year.

These 2022 shocks are consistent with the broader energy and commodity price surge driven by the post-pandemic recovery and the Russia-Ukraine conflict. Folding boxboard, as an energy-intensive industrial product with significant transport costs, was particularly exposed to input cost inflation.

Import volatility is structurally higher than export volatility

Examining coefficient of variation (CV) across partners reveals a clear asymmetry: import flows exhibit far greater volatility than export flows.

Selected import volatility (CV):

• Indonesia: 1.37
• India: 1.31
• Ukraine: 1.06
• United Kingdom: 1.06
• Türkiye: 0.91

Selected export volatility (CV):

• India: 0.57
• Singapore: 0.40
• Thailand: 0.39
• Mexico: 0.25
• United States: 0.23
• Türkiye: 0.08

The EU's export relationships are notably stable, with CVs well below 0.5 for most major partners. This reflects the EU's established, long-term supply relationships and the dominance of large Nordic producers with consistent output. By contrast, import flows from smaller or more distant suppliers (Indonesia, India, Ukraine) show high variability, suggesting more opportunistic or transactional sourcing patterns.

Price appreciation reshaped the cost structure of the market

The overall unit price trajectory reveals a step-change rather than a gradual trend:

EU export prices rose by 76.4% over the period, while import prices increased by only 16.4%. This divergence means that EU exporters were able to pass through cost increases more effectively—and may also reflect a shift toward higher-value product grades in the EU's export basket. The import price peak of €1,043/t (observed in one year) shows that even imports were temporarily caught in the 2022 price surge, though the effect proved transient.

Conclusion

Over the 2015–2025 decade, the EU consolidated its position as the world's leading net exporter of folding boxboard (CN 48109230). Export value grew by 83.4% to reach €1.59 billion, driven overwhelmingly by unit price appreciation rather than volume growth. EU production capacity expanded by over 40% in quantity terms, with Sweden and Finland accounting for the lion's share of both production and exports.

The most dramatic structural shift was the emergence of Serbia as the EU's single most important trade partner for this product, with exports growing over eleven-fold and imports more than quadrupling. This reorientation contributed to rising trade concentration on both the export and import sides.

The 2022 commodity price shock left a clear mark on the data, with abnormal price spikes detected in exports to the United States and imports from Serbia and the United Kingdom. While these shocks were largely transitory, they underscored the sensitivity of this energy-intensive product to macroeconomic disruptions.

Looking ahead, the EU's deepening export orientation—reflected in rising trade intensity and export propensity—suggests continued global market engagement. However, growing concentration in trade relationships warrants monitoring, as it may increase vulnerability to disruptions from key partners.