John Tumazos

Katja Jancic

Nick Gowes

Lucas Pipes

Nick Giles

Patrick Janet

Timna Tanners

- Century Aluminum Company (CENX) announced an **electrical equipment failure** at its **Grundartangi, Iceland aluminum smelter** on **October 21, 2025**.  **[949157_0001104659-25-101317_tm2529215d1_ex99-1.htm:0]** **[949157_0001104659-25-101317_tm2529215d1_8k.htm:0]** 
- This incident caused a **temporary cessation of production on one of its two potlines**, leading to an approximate **two-thirds reduction in the smelter's overall production**.  **[949157_0001104659-25-101317_tm2529215d1_ex99-1.htm:0]** 
- The company expects that **losses resulting from these events will be covered by its property and business interruption insurance policies**.  **[949157_0001104659-25-101317_tm2529215d1_ex99-1.htm:0]** 
- An update regarding the impact assessment and timeline for restoring full production is anticipated during the **quarterly earnings conference call on November 6**.  **[949157_0001104659-25-101317_tm2529215d1_ex99-1.htm:0]**

Century Aluminum reports electrical equipment failure at Iceland smelter

- Century Aluminum's subsidiary, **Norðurál Grundartangi ehf**, has **temporarily ceased production on one of its two potlines** at the Grundartangi, Iceland smelter due to an electrical equipment failure.  **[949157_3d4d1bbae986478393957de1b4713dd1_0]** 
- This incident has resulted in a **temporary reduction of approximately two-thirds** of the smelter's total production.  **[949157_3d4d1bbae986478393957de1b4713dd1_0]** 
- The company expects that **losses arising from this event will be covered** by its property and business interruption insurance policies.  **[949157_3d4d1bbae986478393957de1b4713dd1_0]** 
- Century Aluminum will provide a further update on the situation during its **quarterly earnings conference call on November 6**.  **[949157_3d4d1bbae986478393957de1b4713dd1_0]**

Century Aluminum Reports Production Reduction at Iceland Smelter

- Century Aluminum (CENX) has extended its power agreement with Santee Cooper through **2031**, a crucial step for re-starting idle capacity at its Mt. Holly smelter.  **[949157_81007ee7b6bf430c8214fff17e7b66d9_0]** 
- The company plans a **$50 million investment** to increase production by **50,000 metric tons**, boosting overall U.S. aluminum output by **10 percent**.  **[949157_81007ee7b6bf430c8214fff17e7b66d9_0]** 
- This expansion is projected to create over **100 new jobs** and bring the Mt. Holly plant to full production by **early summer 2026**, a level not achieved since **2015**.  **[949157_81007ee7b6bf430c8214fff17e7b66d9_0]** 
- At full operation, the Mt. Holly smelter is estimated to contribute approximately **$900 million annually** to South Carolina's economy.  **[949157_81007ee7b6bf430c8214fff17e7b66d9_0]**

CENTURY ALUMINUM (CENX)