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A 360 ° approach to sustainable flat steel production
At Hydnum Steel, we are not merely constructing a steelworks; we are laying the groundwork for a cleaner, more resilient, and more competitive future for Europe’ s industry. As producers of clean flat steel in Spain, we have embraced a sustainability approach that goes beyond emissions elimination; it means rethinking the entire value chain, from energy and raw materials to waste, water, digitalization, and logistics. From the initial design phase through everyday operations, every decision has been made with a long-term sustainability mindset.
By Fernando Pessanha & Gilles Mirol, Hydnum Steel
A new benchmark for flat steel in Europe Our greenfield plant project is located in Puertollano, Spain, and is designed to produce up to 2.7 million tonnes of flat steel per year using some of the most advanced lowcarbon technologies currently available. This output represents a strategic contribution to both the national and European steel industries, with direct impact on key sectors such as automotive, construction, renewable energy, and household appliances.
Hydnum Steel is fully aligned with the vision of a reindustrialized, resilient, and climate-neutral Europe, in line with EU initiatives like the Clean Industrial Deal and the push for a dedicated Steel Action Plan for the sector. We are committed to sustainable, digitalized, and competitive processes, supported by access to renewable energy, green financing and policy tools such as the Carbon Border Adjustment Mechanism. These measures are essential to
Green Steel World | Issue 18 | June 2025 23