---
schema_version: "secwatch.filing_event.v1"
accession: "0000949157-21-000115"
form_type: "8-K"
ticker: "CENX"
cik: "0000949157"
company_name: "CENTURY ALUMINUM CO"
filed_at: "2021-08-04T23:59:59+00:00"
generated_at: "2026-06-29T23:00:45.735037+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Century Aluminum Q2 net loss narrows to $35.1M; revenue up 19% QoQ

## Summary
- Net loss of $35.1M ($0.39 diluted EPS loss) vs $140.0M loss in Q1; adjusted EPS loss of $0.27.
- Revenue of $528M, up 19% from $444M Q1; shipments 190,894 tonnes.
- Realized LME aluminum price $2,155/T, +$215/T QoQ; US Midwest premium $490/T (+$160/T).
- Completed refinancing: Senior Notes extended to 2028, added Convertible Notes due 2028.
- Signed 3-year Iceland power contract securing 100% renewable energy for Grundartangi through 2026.

## SEC filing metadata
- accession: 0000949157-21-000115
- form_type: 8-K
- ticker: CENX
- cik: 0000949157
- company_name: CENTURY ALUMINUM CO
- filed_at: 2021-08-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/949157/000094915721000115/0000949157-21-000115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/949157/000094915721000115/cenx-20210804.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000949157-21-000115
- JSON: https://secwatch.observer/filing/0000949157-21-000115.json
- Plain text: https://secwatch.observer/filing/0000949157-21-000115.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.