# Century Aluminum Company

> Clarifo company profile — qualitative business description generated from
> the company's filings. Financial statements, charts and ratios are
> available on Clarifo (https://www.clarifo.com/en/companies/Century Aluminum Company).

## Overview

Century Aluminum Co. is a U.S.-based producer of primary aluminum that operates smelters in the United States and Iceland, with a 55% joint venture interest in the Jamalco bauxite mine and alumina refinery in Jamaica and a carbon anode facility in the Netherlands. The company sells standard-grade and value-added aluminum products into the U.S. and European markets, where proximity to customers helps it capture regional premiums and reduce freight costs versus overseas competitors. Century has also been investing to expand capacity, lower costs, and increase the share of low-carbon and value-added products under its Natur-Al line. Its business is highly tied to electricity, alumina, and aluminum pricing, making operational efficiency and supply-chain positioning central to its model.

## Products & services

• Primary aluminum smelting and metal production
• Standard-grade aluminum products
• Value-added aluminum products and alloys
• Natur-Al low-carbon aluminum products
• Carbon anodes for aluminum production
• Alumina off-take from Jamalco JV

- **Primary aluminum** (80%) — Smelted aluminum metal sold into industrial and commodity markets, including U.S. and European customers.
- **Value-added aluminum products** (15%) — Billet, slab and other differentiated products sold at premiums to standard-grade metal.
- **Low-carbon aluminum (Natur-Al)** (3%) — Lower-carbon aluminum products marketed on sustainability attributes and customer decarbonization needs.
- **Alumina and related upstream supply** (1%) — Jamalco alumina off-take and related upstream inputs supporting internal smelter consumption.
- **Carbon anodes and other by-products** (1%) — Anode production and other ancillary products used internally or sold within the production chain.

- Primary aluminum smelting and metal production
- Standard-grade aluminum products
- Value-added aluminum products and alloys
- Natur-Al low-carbon aluminum products
- Carbon anodes for aluminum production
- Alumina off-take from Jamalco JV

## Customers

Century sells primarily to a small number of large industrial customers and commodity traders, with Glencore representing a major customer relationship and about 54% of consolidated net sales in 2025. Its products are used by downstream manufacturers that need primary aluminum for transportation, packaging, industrial, and other metal-intensive applications. The company emphasizes serving U.S. and European customers from local production sites because shorter supply chains, technical service, and regional premiums improve its value proposition. Customer demand is influenced by aluminum price levels, regional premiums, and the availability of value-added products rather than by consumer branding or retail channels.

- **Commodity traders and metal marketers** (primary) — They buy large volumes of primary aluminum under short-term contracts and resell or distribute it into end markets; Century relies heavily on this channel, especially Glencore.
- **U.S. industrial customers** (primary) — They purchase primary aluminum and value-added products for domestic manufacturing and benefit from Century's U.S. smelter locations and Midwest premium access.
- **European industrial customers** (secondary) — They buy metal from Grundartangi in Iceland to secure reliable regional supply and capture European Duty Paid premium economics.
- **Customers seeking differentiated alloys and billet** (secondary) — They buy value-added cast products for applications requiring specific shapes, alloys, or performance characteristics.
- **Low-carbon procurement customers** (emerging) — They source Natur-Al products to support sustainability targets and lower embedded carbon in their supply chains.

- Large commodity traders and metal marketers such as Glencore
- Industrial manufacturers buying primary aluminum for downstream fabrication
- U.S. customers seeking Midwest premium supply and shorter lead times
- European customers seeking Duty Paid premium supply from Iceland
- Buyers of value-added billet, slab and alloy products
- Customers prioritizing low-carbon aluminum sourcing

## Geography

Century's operating footprint is concentrated in the United States and Iceland, with upstream exposure in Jamaica and an anode facility in the Netherlands. The U.S. remains the largest commercial market and benefits from tariff protection and the Midwest premium, while Iceland provides access to European customers and the European Duty Paid premium. Jamaica is strategically important because Jamalco supplies alumina that is largely consumed internally, supporting vertical integration. The Netherlands facility supports the Iceland smelter with carbon anodes, reducing supply-chain dependence for a key input.

- **United States** (64.2%) — Estimated from 2025 primary aluminum shipment revenue disclosed for U.S. operations.
- **Iceland** (35.8%) — Estimated from 2025 primary aluminum shipment revenue disclosed for Iceland operations.

- United States smelters serve domestic customers and capture Midwest premium economics
- Iceland smelter supplies Europe and benefits from proximity to EEA markets
- Jamaica Jamalco JV provides upstream alumina for internal consumption
- Netherlands anode plant supports the Iceland operation's input needs
- U.S. tariffs on imported aluminum improve domestic pricing conditions
- European market access matters because regional premiums support margins

## Strategy

Century's strategy is centered on improving its cost position, expanding capacity, and increasing the share of value-added and low-carbon products. The company is investing in plant upgrades, restart projects, and sustainability initiatives while keeping a strong balance sheet through commodity cycles. A major strategic pillar is the planned new U.S. smelter with EGA, supported by up to $500 million of DOE funding, which would materially expand domestic primary aluminum capacity. Century also aims to deepen its competitive moat by locating production close to U.S. and European customers and by using vertical integration through Jamalco and its anode operations.

- **Build a new U.S. smelter with EGA** (medium-term) — Adds domestic capacity in a protected market and supports long-term growth if financing and permitting are successful.
- **Grow value-added and low-carbon product offerings** (medium-term) — Differentiated products can earn premiums and reduce reliance on pure commodity pricing.
- **Reduce cost structure and improve operational reliability** (short-term) — Electricity, alumina and labor are the main cost drivers, so efficiency directly affects margins.
- **Preserve liquidity and financing flexibility** (short-term) — Large capital projects and commodity volatility require access to cash, credit and external funding.

- Expand U.S. primary aluminum capacity through the EGA joint development project
- Use DOE funding and strategic alliances to reduce project financing risk
- Increase value-added and low-carbon product mix to differentiate pricing
- Lower operating costs through plant investments and process improvements
- Maintain balance-sheet flexibility across commodity cycles
- Leverage geographic proximity to U.S. and European customers

## Risks

Century is exposed to aluminum price volatility, regional premium swings, and cyclical demand because most of its revenue is tied to commodity-linked primary metal sales. Its cost base is sensitive to electricity, alumina and other raw materials, and the company also faces take-or-pay obligations that can limit the benefit of curtailing production. Customer concentration is a major risk because a small number of buyers account for most sales, and the loss of a large customer would quickly affect volumes and pricing. The company also faces execution risk on restart projects, the new EGA smelter, labor relations, cybersecurity, and regulatory or trade-policy changes, including tariffs and environmental rules.

- **Primary aluminum price and premium volatility** [high] — Revenue is linked to LME pricing plus regional and value-added premiums, which can move sharply with supply-demand conditions and trade policy.
- **Customer concentration** [high] — A small number of customers account for most sales, so losing a major buyer would materially reduce shipments and bargaining power.
- **Power and raw material cost inflation** [high] — Electricity, alumina and carbon products are core inputs and represent the majority of cost of goods sold.
- **Project execution and financing risk** [high] — The new smelter and restart projects require large capital outlays, permitting, and external funding to succeed.
- **Take-or-pay contractual obligations** [medium] — Century may still owe payments for contracted materials or services even when production is reduced, limiting downside protection.
- **Regulatory and trade-policy changes** [medium] — Tariffs, environmental rules and climate-related regulation can change regional premiums, demand, and compliance costs.

- Aluminum price and premium volatility can quickly change revenue and margins
- High electricity and alumina costs can compress profitability if input prices rise
- Customer concentration increases dependence on a few large buyers
- Take-or-pay contracts can keep fixed costs high even when production is curtailed
- Restart and new-build project execution risk could delay expected benefits
- Trade policy, tariffs and environmental regulation can alter market conditions
- Labor, cybersecurity and internal control issues can disrupt operations

## Accounting

Century's reported results are highly sensitive to inventory valuation because aluminum and key inputs are commodity-priced and inventories are carried at the lower of cost or net realizable value. This means changes in aluminum prices, alumina costs, and power costs can create write-down risk or margin volatility even before metal is sold. The Jamalco joint venture is a major accounting judgment area because its structure is atypical and has required restatement and full consolidation treatment, which affects assets, liabilities, and comparability across periods. The company also has material estimates around pensions, OPEB, deferred tax assets, property, plant and equipment, and insurance recoveries for repairs, all of which can materially affect earnings and balance sheet presentation.

- **Inventory lower of cost or net realizable value** — Affects cost of sales and reported margins
- **Jamalco joint venture consolidation** — Affects balance sheet, revenue presentation and comparability
- **Pensions and OPEB** — Affects operating expense and long-term liabilities
- **Deferred tax assets** — Affects tax expense and equity valuation
- **Property, plant and equipment and capital project accounting** — Affects EBITDA, depreciation and asset carrying values

- Inventory NRV accounting can create write-downs when aluminum prices fall or input costs rise
- Commodity-linked pricing makes quarterly results sensitive to shipment timing and premiums
- Jamalco consolidation and joint venture accounting affect reported assets, liabilities and comparability
- Pension and OPEB assumptions can move earnings through benefit expense and obligations
- Deferred tax asset realizability depends on future taxable income and can affect equity and earnings
- Property, plant and equipment estimates matter for depreciation, capitalized repairs and impairment
- Insurance recoveries for Grundartangi repairs can affect timing of expense recognition

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*Last updated: 2026-08-11T04:46:25.733500+00:00*
