Century Aluminum’s shares fell 5.9% following earnings as investors reacted negatively to a cautious outlook and headwinds in the alumina segment, which overshadowed solid operational progress and the Mt. Holly expansion ramp-up.

• Production ramp-up at Mt. Holly expansion is on schedule, with full impact expected in Q3; Q2 includes incremental volumes but no full run rate yet.
• Restart of Potline 2 at Grundartangi proceeding as planned, with full production expected after new transformers arrive in Q4.
• Jamalco refinery still recovering from Hurricane Melissa; faced challenges with lower quality bauxite and a weaker global alumina market due to Middle East conflict.
• Increased energy costs partially offset by hedges; however, margin pressures emerged due to raw material and fuel price volatility.
• Management highlighted strong safety and operational execution but maintained a cautious outlook amid global supply disruptions and market uncertainties.