Mercedes-Benz, Steel Dynamics rev up green auto steel relationship

German automaker Mercedes-Benz has signaled its preference for greener steel in the US alongside a commitment to 50,000 tonnes per year from long-time supplier Steel Dynamics Inc (SDI)

The “CO2-reduced steel” stipulated in the buy will be supplied by SDI’s Tuscaloosa, Alabama, electric-arc furnace (EAF) facility, using at least 70% recycled scrap and 100% renewable energy, the automaker said in a statement on Monday September 18. The companies have had a business relationship since 2015.

“Our ambition is clear: Together with our partners, we want to make our entire fleet of new vehicles net carbon neutral along the entire value chain by 2039,” Mercedes-Benz head of procurement and supplier quality Gunnar Güthenke said in the release.

Mercedes-Benz spelled out its preference for EAF over blast furnace steel, noting that EAFs running on green electricity can halve CO2 emissions compared with traditional methods.

Both parties agreed to potentially increase the share of scrap in the near future, which would reduce the carbon footprint even further.

The company added that “both parties agreed to potentially increase the share of scrap in the near future, which would reduce the carbon footprint even further.”

The agreement comes against a complicated auto and green steel backdrop.

The United Autoworkers initiated a targeted strike on Friday September 15 against all Big Three producers – General Motors, Ford and Stellantis – and the fear of that strike had been chipping away at US hot-rolled prices for some time.

Fastmarkets’ daily steel hot-rolled coil index, fob mill US Midwest was calculated at $33.48 per hundredweight ($669.60 per short ton) on Friday, down by 1.96% from the day before and by 3.18% week-on-week.

Meanwhile, demand for green steel in Europe is still in the exploratory phase, but auto companies appear to be leading the charge.

Green steel premiums there remain relatively wide. Fastmarkets’ weekly assessment of the green steel, domestic, flat-rolled differential to HRC index, exw Northern Europe was flat at $107-268 per tonne on September 14.

To keep up with the green steel discussion and to follow the critical developments in green steel pricing and low carbon steel production, visit our Green Steel Spotlight page.

What to read next
JSW Steel USA’s production of its first fully degassed 12-inch slab at its mill in Mingo Junction, Ohio, could reduce the company’s reliance on imported slab, according to information obtained by Fastmarkets, raising questions about future demand for Brazilian exports at a time when the global slab market is already facing weaker demand and increasing competition.
Latin America's apparent steel consumption is expected to remain broadly stalled in 2026 before recovering more meaningfully in 2027, but the region's steel industry continues to face mounting pressure from rising imports and historically weak production levels, according to Latin American steel association Alacero.
As Mexico seeks to strengthen domestic manufacturing supply chains and reduce its reliance on imported steel products, special bar quality (SBQ) steel has emerged as one of the segments offering the greatest growth potential for local producers, according to TYASA’s three chief executive officers, whom Fastmarkets sat down with in an exclusive interview to discuss the company’s new SBQ rolling mill.
US trade union United Auto Workers and the Dauch Corporation, formerly known as American Axle, reached a tentative agreement on Wednesday June 10 that could restore the loss in demand for automotive steel resulting from a workers’ strike.
Lack of standardisation, certifications and market practises is creating growing uncertainty across green steel markets, with implications for pricing, procurement and credibility.
A United Auto Workers (UAW) strike at the American Axle factory in Three Rivers, Michigan, that began on Monday June 1 could lead to reduced demand for automotive steel if not resolved quickly, but analysts disagree on whether it will ultimately have a significant impact.