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How we contribute to a green future

With Green Steel we are taking an important step towards climate-neutral steel production. Our main raw material is steel scrap. We buy it locally to avoid emissions from overseas shipments. The scrap for our steel production is sourced from within a radius of 80 km.

Our Green Steel Portfolio

Green steel can be produced through optimized raw material use, energy efficiency measures and production based on using renewable energy. We serve a wide range of customers with individual solutions and therefore help many industries on their decarbonization path. Offering a broad Green Steel portfolio allows our customers to choose the most suitable product on their path towards a sustainable future. We are constantly working on the development of our production process to further reduce CO2 emissions.

Green Steel

Swiss Steel Group produces steel solely with electric arc furnace technology, by driving recycling and a circular economy. The result is a product offering with 78% less carbon emissions than the industry average*. Thanks to our 100% EAF-based production, we produce significantly less emissions than BF-BOF producers. We therefore consider ourselves green but continue to work to reduce our emissions even further until we reach net zero.

* Industry average: 1.89t CO2/t crude steel cast vs. Swiss Steel Group: 0.422t CO2/t crude steel cast, Source: World Steel Association Sustainability Indicators 2021

Green Steel Climate+

For those who want to push sustainability further, Swiss Steel Group offers Green Steel Climate+. These products are produced with power from renewable sources only, such as wind or solar, and therefore have an even smaller carbon footprint.

Green Steel Stainless+

Green Steel Stainless+ offers our customers stainless steel products produced from 95% or more recycled materials. We reduce emissions from purchased materials by 87% by avoiding the use of primary alloys.

From waste to value

While often underestimated, no material is as sustainable as steel. Even after repeated use, steel does not lose its high quality. Swiss Steel Group produces steel solely from steel scrap, making us a relevant recycling player in the countries where we produce our steel. Taking sustainability seriously, we source our scrap as locally as possible, favour rail transport and pay close attention to precise scrap sorting. The more our steel scrap is sorted, the more precise we can use each single chip of scrap and the fewer primary alloys we need. It is this attention to detail that results in a smaller environmental footprint.

Green Steel Scrap Magnet

Producing Green Steel

Generally, there are two established methods of steel production: One is to use iron ore and coking coal to produce steel in blast furnaces. The other is to use steel scrap in electric arc furnaces. We at Swiss Steel Group operate solely with electric arc furnace technology. We source the key ingredient to our production locally and avoid shipments half-way across the globe and therefore significantly reduce CO2 emissions of our input materials. Because electric arc furnaces require large amounts of power, we operate on power from decarbonized sources.

Green Steel Metal Solar Panel

Nothing goes to waste

As a key driver of a circular economy, we at Swiss Steel Group pay close attention to also recycling by-products wherever possible:

  • At our site in Emmenbrücke, we use our 20 GWh of surplus heat generated annually from the rolling mill to heat buildings and provide excess energy to the city’s heating network. Overall, our surplus heat sustains 800 households.
  • In Switzerland and France, the rock-like nature of electric furnace slag is used as a high-quality material in road construction and is the ideal substitute for concrete granules and ballast.
  • Mill scale is reused in the cement industry.
  • The waste gases generated by the electric arc process are cleaned. This produces filter dust which still contains valuable materials, such as zinc. The filter dust is processed in specialized recycling companies and the valuable materials it contains are recovered. Processed zinc can then be used in electroplating operations, for example, or as an alloying metal, for example in brass alloys.