
The Automotive MMI (Monthly Metals Index) recorded a 0.43% increase month-over-month in October, signaling a stabilization in the downward price trends that have been affecting the automotive sector. However, the industry remains cautious as lower steel output due to ongoing mill maintenance could lead to price increases in hot-dipped galvanized (HDG) steel, which plays a key role in automobile manufacturing.
Automotive MMI Moves Sideways with a 0.43% Change in October
The Automotive MMI showed a modest 0.43% change compared to previous months, as the index moved sideways. While the slight uptick reflects some stability in the automotive metals market, the sector is bracing for potential disruptions due to steel production challenges.
The automotive industry, which relies heavily on flat rolled steel products like HDG steel, is now closely monitoring steel supply levels as maintenance outages at mills in the U.S. have led to lower production output. Despite this, the market has avoided major disruptions, such as the anticipated east coast port strike, which was resolved in just 3-4 days.
East Coast Port Strike Averted, but Lower Steel Output Looms
While the automotive industry was spared from the consequences of a prolonged port strike, it still faces potential headwinds from reduced steel output due to mill maintenance. Steel production in the U.S. began to decline in August as mills entered maintenance cycles, with full production expected to resume by the end of November.
As a result, the industry could see steel supply constraints, particularly in hot-dipped galvanized steel, which is critical for producing vehicle body panels and parts. This reduced output may lead to short-term price increases, adding to cost pressures for automotive manufacturers.
Hot-Dipped Galvanized Steel Prices Set for a Short-Term Increase
Due to the ongoing maintenance and anticipated steel shortages, HDG steel prices are projected to rise in the short term. The automotive industry, which has already faced material shortages and rising input costs, may see these price hikes further impact production costs and supply chains.
HDG steel is widely used in automobile manufacturing due to its durability and corrosion-resistant properties, making it a vital component of car bodies. As mills work to complete maintenance and restore full capacity, the market could experience price fluctuations, especially if demand remains steady while supply is constrained.
Bullish Momentum Expected as Automotive Industry Faces Rising Steel Prices
Although the automotive sector has enjoyed some price stability in recent months, the expected rise in HDG steel prices could inject bullish momentum into the market. As steel mills ramp up production post-maintenance, the industry will need to navigate these price increases while balancing supply chain constraints.
Automotive manufacturers and suppliers will closely watch for any signs of recovery in steel output, which could help stabilize prices in the long term.


