Market evolution: Thermostats (CN 903210) — 2015–2025

Introduction

This report examines the European Union's trade performance in thermostats (Combined Nomenclature code 903210) over the period 2015–2025. The analysis covers both overall trade flows and the structural shifts in production, partner concentration, and trade intensity. Despite a significant contraction in domestic production volumes, the EU has remained a net exporter of thermostats throughout the period, with the trade surplus widening from €146.0 million in 2015 to €188.7 million in 2025 (+29.2%). The period is characterised by three overarching dynamics: a divergence between rising unit values and stagnating volumes, a sharp increase in import dependence on China, and a pronounced decline in EU production capacity.

1. Price-Led Export Growth Masking Stagnant Volumes

The headline expansion of EU thermostat exports — from €482.9 million in 2015 to €631.3 million in 2025 (+30.7%) — conceals a far more modest trajectory in physical terms.

Export value growth was primarily driven by rising unit prices

Export volumes in tonnes rose only 2.3% over the decade, from 10,392 tonnes to 10,630 tonnes. By contrast, the average export price climbed 27.9%, from €46,389 per tonne to €59,340 per tonne. This indicates that the EU's competitive advantage has shifted toward higher-value, likely more technologically sophisticated products, rather than volume expansion.

Electronic thermostats have increasingly dominated export value

Within the product breakdown, electronic thermostats (CN 90321020) accounted for an increasing share of exports by value. In 2025, electronic thermostats exported at an average price of €70,299 per tonne — roughly 1.35 times the €52,144 per tonne achieved by non-electronic thermostats (CN 90321080). This price premium suggests a compositional shift toward embedded, digitally controlled devices.

Import prices followed a parallel but less steep trajectory

On the import side, volumes rose 13.2% (from 8,186 to 9,270 tonnes) while values grew 31.4% (from €336.9 million to €442.6 million). The average import price increased 16.0% (from €41,126 to €47,711 per tonne), a more moderate rise than on the export side, which further narrowed the EU's export premium and may reflect increasing competition from higher-quality Asian imports.

2. Rising Import Concentration on China Amid a Structural Production Decline

The most significant structural shift over the 2015–2025 period is the EU's increasing reliance on China for thermostat imports, occurring against the backdrop of a dramatic contraction in EU domestic production.

EU production volumes have nearly halved

According to production data, the EU produced approximately 368 million thermostat units in 2015; by 2025, this figure had fallen to 187 million units — a decline of 49.2%. Production value declined more modestly (−5.8%), from €1.22 billion to €1.15 billion, implying that the remaining production has migrated toward higher-value segments.

China has become the EU's dominant import supplier

Chinese thermostat imports into the EU surged from €122.7 million in 2015 to €235.8 million in 2025, an increase of 92.1%. China's share of total EU thermostat imports rose from approximately 36% to over 53%. This growth was particularly pronounced between 2020 and 2022, when Chinese imports peaked at €335.4 million — likely driven by post-COVID supply chain restocking and energy-crisis-induced demand for heating controls.

Import concentration has risen sharply

The Herfindahl-Hirschman Index (HHI) for imports by value increased from 1,827 to 3,117 (+70.6%), and by volume from 1,973 to 3,801 (+92.7%). An HHI above 2,500 is generally considered indicative of a highly concentrated market. This contrasts sharply with the export side, where the HHI remained stable at around 800, reflecting well-diversified outbound trade.

The EU's import market has experienced price shocks

Shock detection identifies a significant price abnormality in Chinese imports centred on 2022, with an abnormality score of 23.9 and a year-on-year shift of 21.6%. Given that China accounted for 62.6% of EU import value, this shock had outsized systemic effects — likely reflecting post-pandemic logistics disruptions and elevated energy costs in China during that year. A concurrent export price shock from Tunisia (144% price shift in 2022) further compounded supply-side pressures.

3. Geographic Reconfiguration of EU Trade Flows

Beyond the China-centric import dynamic, the period reveals a broader geographic reconfiguration involving the near-complete collapse of trade with Russia, the rapid rise of Mexico as an export destination, and an increasing specialisation of Central and Eastern European member states in thermostat production.

Exports to Russia have collapsed entirely

EU exports to the Russian Federation fell from €27.8 million in 2015 to just €1,661 in 2025 — a decline of essentially 100%. This reflects the progressive tightening of EU sanctions following Russia's invasion of Ukraine, which has removed a formerly meaningful export market. The volatility of this flow (coefficient of variation: 0.62) underscores the abruptness of this severance.

Mexico has emerged as a high-growth export destination

Export values to Mexico grew from €15.4 million to €45.3 million (+194.9%), making it the fastest-growing major export partner. This may reflect nearshoring trends, as multinational manufacturers rebalance supply chains closer to North American demand. Other notable export growth markets include Egypt (+69.8%), Türkiye (+40.0%), and China (+54.4%).

Central and Eastern European members show growing specialisation

Specialisation analysis for 2025 reveals that several CEE member states have developed strong comparative advantages in thermostat production. Croatia (RSCA: 0.83), Czechia (0.43), Bulgaria (0.36), Romania (0.27), and Slovenia (0.24) top the specialisation rankings. Czechia stands out with a 12.2% share of EU production and a 4.8% share of global trade. By contrast, Western European economies such as Ireland, Finland, and Greece show very low specialisation scores, consistent with a pattern of manufacturing migration eastward. Poland's imports surged 221% over the period (from €11.3 million to €36.2 million), reflecting its role as both an assembly hub and a growing domestic market within the EU.

Conclusion

Over the 2015–2025 period, the EU's thermostat market has undergone a structural transformation. The Union has maintained — and modestly expanded — its net export surplus, but this masks deeper shifts: near-halved production volumes, a price-led rather than volume-led export growth model, and a rapidly rising concentration of imports from China. The collapse of trade with Russia and the emergence of Mexico as a growth market reflect geopolitical realignments rather than purely commercial dynamics. Meanwhile, the specialisation of CEE members suggests an ongoing intra-EU redistribution of manufacturing capacity. Looking forward, the high and rising concentration of Chinese imports (HHI above 3,100) presents a clear supply-chain vulnerability, particularly in light of the 2022 price shock. EU industrial policy will need to balance the cost efficiencies of Chinese sourcing against the strategic imperative of supply diversification.