Spain and China are quietly building one of the more consequential economic relationships in Europe, and most people haven’t noticed yet.
The headlines tend to focus on Brussels, on tariff disputes and strategic autonomy declarations. But while EU institutions debate how to categorise China as partner, competitor, and systemic rival simultaneously, Spain has been doing something more practical: signing deals, breaking ground on factories, and positioning itself as the southern European entry point for Chinese capital and technology. Whether that’s savvy diplomacy or a geopolitical gamble depends largely on what the next decade looks like.
The numbers make the relationship hard to dismiss. China is Spain’s largest trading partner outside the EU. That alone gives the bilateral relationship a weight that transcends political optics. Spain exports food, tourism services, industrial equipment. China sends back batteries, solar panels, electronics, and increasingly, direct investment. The flows are asymmetric in volume but complementary in structure, which is exactly the kind of arrangement that tends to deepen over time.
Two projects illustrate what that looks like in practice. In Barcelona, Chinese automaker Chery and Spain’s Ebro-EV Motors have committed 400 million euros to a joint electric vehicle manufacturing venture. In Zaragoza, CATL, the world’s dominant battery manufacturer, is building a gigafactory in partnership with Stellantis. The projected investment sits at around 4.1 billion euros, and production is expected to begin before the end of 2026. These aren’t pilot programmes or letters of intent. They’re factories.
The energy sector tells a similar story. LONGi Solar, one of China’s largest photovoltaic manufacturers, has expanded its distribution across the Iberian Peninsula through Spanish partners. Envision Energy, a Chinese wind turbine company that tends to fly below the radar of European industry coverage, has been deploying smart wind projects in Castile and León. At the port of Valencia, Chinese-financed electric cargo handling equipment is already in the ground, with significant projected reductions in carbon emissions from port operations. The pattern is consistent: Chinese technology and capital entering Spanish infrastructure, often in sectors where Europe has set ambitious decarbonisation targets but faces supply chain constraints.
That gap between ambition and supply chain is where the relationship gets strategically interesting. Spain has built genuine expertise in wind and solar deployment. It has an established business ecosystem, grid integration experience, and regulatory capacity. What it doesn’t have, and what no European country currently has at scale, is domestic manufacturing of the batteries, photovoltaic modules, and key components that the green transition requires in enormous volumes. China has all of that. The complementarity isn’t rhetorical. It’s physical.
The floating wind sector is worth watching closely. Spain has Atlantic and Mediterranean coastlines with deep water profiles that make fixed-bottom offshore wind technically and economically difficult. Floating wind technology, still in its commercial infancy, could open those resources. China has been investing heavily in floating wind manufacturing capacity. If that technology matures on the expected timeline, the two countries have obvious reasons to work together on deployment.
There are real tensions running under all of this, and pretending otherwise would be naive. Europe’s broader anxiety about strategic dependency on Chinese supply chains is legitimate. The solar panel story is the cautionary example everyone reaches for: a decade of European manufacturing capacity was undercut by Chinese production economics, and the continent is now dependent on imports for a technology it helped pioneer. Battery manufacturing is the current test case. Whether the CATL investment in Zaragoza represents genuine industrial partnership or the advance of a dependency that will become uncomfortable later is a question that won’t be answered until the factory has been running for several years and the trade conditions around it become clearer.
Spain’s position within this tension is genuinely unusual. It has a diplomatic tradition of supporting multilateral frameworks and has historically been willing to engage pragmatically where others posture. Within EU discussions about open strategic autonomy, that gives Spain a role to play: demonstrating that it’s possible to maintain economic relationships with China without simply deferring to Beijing, and without the reflexive hostility that sometimes passes for strategic rigour in northern European capitals.
The cultural and academic dimensions tend to get buried in the economic analysis, but they matter for the durability of any bilateral relationship. Chinese tourist numbers to Spain were recovering strongly before recent global disruptions, and joint university research programmes in artificial intelligence, biotechnology, and industrial digitalisation have been quietly expanding. These connections don’t drive quarterly trade figures, but they build the institutional familiarity that makes economic relationships more resilient when political conditions shift.
What comes next depends on variables neither Madrid nor Beijing fully controls. US-China trade tensions are reshaping global value chains in ways that create both opportunities and risks for third parties. If tariffs and technology restrictions continue to fragment global supply chains, Spain’s position as a manufacturing base with EU market access becomes more attractive to Chinese firms looking for a way around barriers. That could accelerate investment. It could also make Spain a proxy battleground in a conflict that has nothing to do with its own interests.
The relationship works best when both sides treat it as what it actually is: a practical economic arrangement between complementary economies, with mutual interest in a functioning multilateral trading system. When it gets weighed down by geopolitical framing from either direction, it tends to produce less and cost more. Spain knows this. The question is whether the broader European context allows that pragmatism to hold.
