Market evolution: Signalling glassware and optical elements (CN 7014) — 2015–2025

Introduction

This report analyses the evolution of EU trade in CN 7014 — signalling glassware and optical elements of glass, not optically worked — over the period 2015–2025. The product category covers a range of specialised glass components used in signalling, optical and decorative applications, corresponding to Prodcom code 23.19.26.40. Over the decade examined, the EU market for these products underwent a structural transformation: the Union shifted from approximate trade balance to a pronounced import dependence, export volumes collapsed while unit values soared, and domestic production contracted dramatically. The following sections unpack these dynamics in detail, drawing on trade data for CN 7014.

1. A Structural Shift: From Near-Balance to Heavy Import Dependence

1.1 The trade balance deteriorated sharply over the decade

In 2015, the EU's trade balance in CN 7014 stood at approximately −€3.2 million, indicating a market close to equilibrium between imports (€55.9 million) and exports (€52.7 million). By 2025, imports had surged to €136.9 million while exports reached €67.9 million, producing a deficit of roughly €69.0 million. This represents a deterioration of over 2,000% in the trade balance. The net import reliance indicator confirms this structural shift: the EU moved from a net import reliance of −26.4% (i.e., a net exporter) in 2015 to +43.6% in 2025.

1.2 Domestic production collapsed while imports filled the gap

Behind the growing import dependence lies a dramatic contraction in EU domestic production. Production volume fell from 168.2 million kg in 2015 to just 34.8 million kg in 2025 (−79.3%), while production value declined from €218.8 million to €80.0 million (−63.4%). This indicates that EU manufacturers progressively exited or downsized low-to-medium-value signalling glassware production, leaving space for foreign suppliers — notably the United States and Japan — to expand their market share.

1.3 Germany became the EU's dominant gateway for this trade

Among EU Member States, Germany emerged as by far the largest importer and exporter of CN 7014 products. German imports rose from €42.3 million to €119.6 million (+182.8%), while German exports grew from €24.3 million to €58.5 million (+140.8%). This concentration underscores Germany's role as a central hub — likely reflecting its strong photonics and precision-optics industrial base, which processes and re-exports high-value-added optical glass components. Austria, Czechia and Italy also show notable specialisation in this product, consistent with established glass-making traditions in Central Europe.

2. Collapsing Volumes, Surging Prices: A Market Moving Up the Value Chain

2.1 Physical trade volumes contracted on both sides

Despite growing import values, actual quantities traded fell significantly. Export volumes dropped from 4,402 tonnes to just 861 tonnes (−80.4%), while import volumes declined from 925 tonnes to 570 tonnes (−38.4%). The fact that import values more than doubled even as import volumes fell by nearly 40% points to a massive increase in unit values — the EU is importing far fewer tonnes but paying substantially more for them.

2.2 Unit values increased dramatically, signalling a shift toward high-technology products

The average export unit value rose from €11,967 per tonne in 2015 to €78,824 per tonne in 2025 (+558.7%). Import unit values climbed from €60,375 per tonne to €240,012 per tonne (+297.5%). These extraordinary price increases suggest that the product mix traded under CN 7014 has shifted substantially toward higher-specification, higher-value optical elements — potentially advanced lens blanks, precision glass components for instrumentation, or specialised signalling optics — while lower-value bulk glassware has been progressively sourced locally or exited from the market.

2.3 The United States and Japan emerged as the EU's premium suppliers

The partner composition of EU imports shifted decisively toward advanced economies. Imports from the United States grew from €21.2 million to €68.6 million (+223.5%), while imports from Japan rose from €12.9 million to €41.8 million (+225.0%). Together, the US and Japan accounted for the vast majority of the increase in import value. Both countries are home to leading manufacturers of precision optical glass (e.g., Corning, Schott subsidiaries, OHARA, Hoya), which aligns with the price-driven nature of the import growth. By contrast, imports from Taiwan declined from €3.6 million to €1.2 million (−65.0%), suggesting a loss of competitiveness or a shift in product scope.

2.4 EU exports to China collapsed, reshaping the export portfolio

On the export side, the most striking development was the near-disappearance of shipments to China — from €13.1 million in 2015 to €1.7 million in 2025 (−86.9%). China was the EU's largest single export destination in 2015 but ranked well behind the United States and Japan by 2025. This collapse was detected as a supply shock centred on 2024, with an abnormality score of 2.2 and a −97.4% shift in that period. Several factors may be at play: China's own rapid build-up of domestic optical glass capacity (particularly for smartphone and automotive optics), increased trade tensions, and potential reclassification of products. Meanwhile, exports to the United States held relatively steady (€7.8M to €9.0M, +15.4%), and those to Switzerland were broadly stable.

3. Growing Supply Concentration and Emerging Vulnerabilities

3.1 Import sources became more concentrated, raising supply risk

The Herfindahl-Hirschman Index (HHI) for imports by value rose from 2,288 in 2015 to 3,535 in 2025 (+54.5%), indicating a shift from a moderately concentrated market to a highly concentrated one. By contrast, the export HHI remained broadly stable (1,167 → 1,110), suggesting that EU exports continued to be distributed across a diversified set of destination markets. The concentration of imports is almost entirely explained by the growing dominance of the United States and Japan, which together account for an ever-larger share of the EU's inbound trade in this product.

3.2 Several import relationships exhibit high volatility

Analysis of coefficient of variation (CV) reveals that some import partnerships are highly erratic. Imports from India show a CV of 1.71, the highest among tracked partners, though from a low base. Imports from Switzerland (CV 0.86) and Hong Kong (CV 0.99) also display significant year-to-year swings. On the export side, shipments to Brazil (CV 1.63) and Russia (CV 0.82) are the most volatile. Several notable shock events were detected:

• Switzerland (imports, 2020): A price shock with a +555.5% shift and an abnormality score of 85.2, suggesting a possible re-routing of high-value goods or a one-off large contract.
• United States (exports, 2022): A price shock of +78.9% with an abnormality of 26.5, coinciding with post-pandemic supply chain adjustments.
• China (exports, 2024): A supply shock with a −97.4% collapse, marking the effective cessation of EU export flows to China.

3.3 The EU's export propensity rose sharply even as the trade balance worsened

The trade intensity of the EU in CN 7014 nearly doubled over the period, rising from 54.1% to 118.0%, while export propensity surged from 43.6% to 161.1%. These figures indicate that the EU's external trade in this product grew far faster than its domestic production base. In particular, the export propensity exceeding 100% means that the EU now exports more CN 7014 products (by value) than it produces domestically — a pattern consistent with significant re-export activity, particularly through Germany's role as a processing and distribution hub that imports high-value optical elements and re-exports processed or integrated products.

Conclusion

The EU market for signalling glassware and optical elements (CN 7014) has undergone a profound structural transformation between 2015 and 2025. The most consequential shifts are: (1) a transition from approximate trade balance to a net import deficit of nearly €69 million, driven by a 145% increase in import values; (2) a dramatic contraction in domestic production (−79% by volume), which has been replaced by imports from the United States and Japan; and (3) a sharp increase in unit values on both the import and export sides, indicating that the product mix has moved toward higher-specification optical glass. The concentration of import supply sources has increased markedly, with Germany emerging as the EU's dominant trading node. While the EU's export base remains diversified, the collapse of exports to China — once the largest single destination — represents a significant reorientation of trade flows. Looking ahead, the growing reliance on US and Japanese suppliers for high-value optical elements, combined with reduced domestic production capacity, may warrant attention from an industrial resilience perspective.