Novelis Oswego Mill Restart Delay Tightens US Flat-Rolled Aluminum Supply

Aluminum Ingot

Novelis Oswego mill restart remains one of the most important issues in the US aluminum market. The company now plans to restart the hot-rolling mill by the end of the second quarter. A second major fire pushed the restart well beyond the original December 2025 target. As a result, Novelis Oswego mill restart delays are tightening US flat-rolled aluminum supply.

The outage began in September last year and has already had a major volume impact. Novelis said the shutdown will remove 150,000-200,000t of flat-rolled product shipments before the mill returns. That loss is large enough to affect multiple downstream markets. Therefore, Novelis Oswego mill restart timing matters well beyond one facility.

The disruption has already hit quarterly performance. Novelis lost 72,000t in North American sales volumes during October-December because of the fires. Global shipments fell 11pc to 809,000t in the quarter. Meanwhile, the company posted a $160mn loss after previously reporting a profit.

US Flat-Rolled Aluminum Supply Is Relying on Workarounds

US flat-rolled aluminum supply is now relying on a patchwork of internal transfers and outside sourcing. Novelis nearly doubled intersegment sales volumes to 95,000t in the quarter. The company has been moving hot band from other sites to feed Oswego’s cold-rolling and finishing lines. As a result, the business is preserving some downstream activity despite the damaged hot mill.

The company has also been buying hot band from domestic competitors. That effort is helping support US automakers, especially Ford, which is the main customer for Oswego’s automotive aluminum sheet. However, that support has constrained capacity in other end markets. Therefore, the Novelis Oswego mill restart delay is now affecting the broader industry mix.

The financial cost is also severe. Novelis expects the fires to hit free cash flow by $1.3bn-1.6bn before insurance adjustments. That includes repairs, downtime, and customer support costs. Meanwhile, parent company Hindalco already provided a $750mn equity infusion to ease the pressure.

Bay Minette Aluminum Plant Becomes More Important to the Recovery Story

Bay Minette aluminum plant is now becoming more important in Novelis’ recovery plan. The company expects to start its cold-rolling mill there in March. It still plans to commission the full 600,000t/yr facility in the second half of 2026. As a result, Bay Minette may help offset some of the market strain created by Oswego.

The product mix at Bay Minette also matters. Two-thirds of output will go to beverage-can sheet, while most of the rest will serve automotive flat-rolled products. That means the plant will not replace Oswego directly in every segment. However, it will still add valuable rolling capacity to a tight US market.

This leaves the market in a delicate position. Higher regional aluminum prices helped support Novelis revenues, which still rose 2.6pc to $4.2bn in the quarter. But volume losses and repair costs outweighed that benefit. Consequently, Novelis Oswego mill restart remains the key issue for both company earnings and domestic aluminum sheet availability.

The Metalnomist Commentary

This delay matters because Oswego sits in one of the most sensitive parts of the US aluminum chain. Automotive sheet supply was already tight, and the market has been forced into temporary workarounds. Until Oswego returns and Bay Minette ramps smoothly, flat-rolled aluminum availability will likely stay under pressure.