This Management's Discussion and Analysis ("MD&A") provides information that
management believes is relevant to an assessment and understanding of the
consolidated financial condition and results of operations of Century Aluminum
Company and its subsidiaries (collectively, "Century," the "Company," "our" and
"we") and should be read in conjunction with the accompanying consolidated
financial statements and related notes thereto in   Item 8. Financial Statements
and Supplementary Data   and in   Item 1A. Risk Factors  . This MD&A contains
"forward-looking statements" - See "Forward-Looking Statements" above.
Overview
We are a global producer of primary aluminum with aluminum reduction facilities,
or "smelters," in the United States and Iceland. The key determinants of our
results of operations and cash flow from operations are as follows:
•the price of primary aluminum, which is based on the London Metal Exchange
("LME") and other exchanges, plus any regional premiums and value-added product
premiums;
•the cost of goods sold, the principal components of which are electrical power,
alumina, carbon products and labor, which in aggregate represent more
than 75% of our cost of goods sold; and
•our production volume.
COVID-19 Update
In response to the COVID-19 pandemic, we have taken a number of actions to
protect the health and well-being of our employees and to prevent the spread of
COVID-19 within our operations. As a result, our plants have not experienced any
disruption in operations as a result of the pandemic, and we continue to sell
all of our metal essentially as it is cast.
The COVID-19 pandemic has disrupted the global economy and created significant
volatility in the primary aluminum industry. Such adverse impacts to the global
market include the drop in the LME price for primary aluminum to $1,457 in April
2020 from $1,772 at the start of 2020. However, we have seen some measurable
improvement in the global market for primary aluminum along with an increase in
the price for our product and a return to more stability in the market in which
we operate in recent months. The LME price for primary aluminum averaged $1,702
per tonne for 2020 as compared to an average of $1,792 for 2019, due in part to
the impacts that COVID-19 had on the LME price during 2020. Because we sell our
product on a one- to three-month lag to current prices, our results reflect the
LME price on this one to three month lag basis. Customer demand for value-added
aluminum products and, in turn, the product premium we receive for such
products, also have generally returned to first quarter 2020 levels after having
been negatively impacted by the COVID-19 pandemic. Decreases in the prices of
our products have also been partially offset by decreases in the prices of our
key cost inputs.
We have taken actions to mitigate the financial impact of the COVID-19 pandemic,
including reducing discretionary spending, optimizing working capital and
deferring non-essential capital projects. The potential future impact of the
COVID-19 pandemic on our business, results of operations and financial
performance is difficult to predict and will depend on future developments, and
such effects could exist for an extended period of time. See   I    tem 1A. Risk
Factors   for additional information on the potential risks associated with the
COVID-19 pandemic.
Pricing of aluminum
The overall price of primary aluminum consists of three components: (i) the base
commodity price, which is based on quoted prices on the LME and other exchanges;
plus (ii) any regional premium (e.g., the Midwest premium for metal sold in the
United States ("MWP") and the European Duty Paid premium for metal sold into
Europe); plus (iii) any product premium. Each of these price components has its
own drivers and variability.
The aluminum price is influenced by a number of factors, including global
supply-demand balance, inventory levels, speculative activities by market
participants, production activities by competitors and political and economic
conditions, as well as production costs in major production regions. These
factors can be highly speculative and difficult to predict which can lead to
significant volatility in the aluminum price. Increases or decreases in primary
aluminum prices result in increases and decreases in our revenues (assuming all
other factors are unchanged). Information regarding financial contracts is
included in   Note 19. Derivatives.


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The historic volatility of the price of aluminum is reflected in the chart below:


                    [[Image Removed: cenx-20201231_g3.jpg]]
The average LME price for primary aluminum was $1,702 per tonne in 2020,
compared to $1,792 per tonne in 2019, and $2,110 in 2018. The average MWP price
was $267 per tonne in 2020 compared to $396 per tonne in 2019 and $420 per tonne
in 2018. The average European Duty Paid premium was $126 per tonne in 2020
compared to $142 per tonne in 2019 and $164 per tonne in 2018. We did see a
decline in LME, MWP, and European Duty Paid premium prices beginning in the
first half of 2020, with the LME price for primary aluminum falling from $1,772
per tonne, MWP price of $320 per tonne, and European Duty Paid premium price of
$140 per tonne as of January 2, 2020 to $1,433, $176, and $98, respectively by
May 15, 2020. There were improvements in the global markets through the second
half of 2020 resulting in an increase in LME, MWP and European Duty Paid premium
prices by the end of 2020, with the LME price for primary aluminum at $1,978 per
tonne, MWP price at $323 per tonne and European Duty Paid premium at $150 per
tonne as of December 31, 2020.

Energy, Key Supplies and Raw Materials
Our operating costs are significantly impacted by changes in the prices of the
materials used in the production of aluminum, including alumina, electrical
power and carbon products. Because we sell our products based principally on the
LME price for primary aluminum, regional premiums and product premiums, we are
unable to pass increased production costs on to our customers. Although we
attempt to mitigate the effects of price fluctuations from time to time through
the use of various fixed-price commitments, financial instruments and also by
negotiating LME-based pricing in some of our raw materials and electrical power
contracts, these efforts also limit our ability to take advantage of favorable
changes in the market prices for primary aluminum or raw materials and may
affect our financial position, results of operations and cash flows.
Alumina and electrical power represent the two largest components of our cost of
goods sold. As a result, the availability of these cost components at
competitive prices is critical to the profitability of our operations. The
pricing under our alumina supply contracts is variable. A major portion of our
alumina requirements is indexed to the price of primary aluminum, which provides
a natural hedge to one of our largest production costs. We also purchase alumina
based on a published alumina index and at fixed prices. The alumina price is
influenced by a number of factors, including global supply-demand balance and
other factors outside of our control.  Various external events in the alumina
markets during 2018 caused significant increases in the price of alumina
resulting in the ratio of alumina prices to aluminum prices to well exceed
historical levels, which persisted throughout 2018 and much of 2019. By the end
of 2019, the relationship between alumina and aluminum prices returned to
historical levels following the resolution of these supply dislocations and
remained stable during 2020. The average market


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alumina index price as a percentage of market LME price per tonne for 2020 was 16% compared to 19% for 2019 and 22% for 2018.



Electrical power is our other largest operating cost. Currently, our Hawesville
and Sebree plants receive all of their electricity requirements under
market-based power agreements. In the U.S., market-based energy prices are
driven in large part by coal, natural gas, wind, and other fuel sources, as well
as weather influenced electric loads. Extreme weather events, such as that
experienced in mid-February 2021 throughout the United States, can result in
power outages and/or significant increases in demand, which can result in
significant increased power costs incurred in our operations.
Our Mt. Holly aluminum smelter is currently party to both a power agreement with
a third party supplier (providing 75% of Mt. Holly's power) and with Santee
Cooper (supplying 25% of Mt. Holly's power) to supply the Mt. Holly smelter with
all its power needs. Both of these power agreements were set to expire on
December 31, 2020 but were extended through March 31, 2021 as we finalize a new,
three-year power arrangement with Santee Cooper that is expected to be effective
April 1, 2021. It is expected that under the new power contract with Santee
Cooper, 100% of Mt. Holly's electrical power requirements will be supplied from
Santee Cooper's generation at cost of service based rates. The new contract with
Santee Cooper is expected to provide sufficient energy to allow the smelter to
increase its current production to 75% of Mt. Holly's full production capacity.
If we are unable to finalize this proposed new power contract with Santee Cooper
and obtain all necessary government approvals, we may choose, or be forced, to
further curtail operations at the plant. See   Item 1A. Risk Factors  .
In Iceland, approximately 70% of the power requirements for our Grundartangi
plant is indexed to the price of primary aluminum, which provides a natural
hedge of one of our largest production costs. Since November 2019, the price of
the remaining 30% of Grundartangi's power requirements has been linked to the
market price for power in the Nord Pool power market, the trading market for
power in the Nordic countries and certain other areas of Europe.
Production/Shipment Volumes
Shipment volume is another key determinant of our financial results. In normal
circumstances, fluctuations in production and shipment volumes, other than
through acquisitions or expansions, are generally small period over period. Any
adverse changes in the conditions that affect shipment volumes could have a
material adverse effect on our results of operations and cash flows.
The following table sets forth, for the periods indicated, the shipment volumes
and revenues for primary aluminum shipments:
SHIPMENTS - PRIMARY ALUMINUM(1)
                           United States                                   Iceland                                     Total
                    Tonnes                Revenue $              Tonnes              Revenue $              Tonnes              Revenue $
                                                                  (dollars in millions)
2020                  495,433           $     985.3              315,743           $     570.8              811,176           $  1,556.1
2019                  495,096               1,143.8              316,148                 628.3              811,244              1,772.1
2018                  428,389               1,126.4              321,461                 752.3              749,850              1,878.7


(1) Excludes scrap aluminum and alumina sales
Results of Operations
The following discussion for the year ended December 31, 2020 reflects restart
activity at Hawesville and no change in production capacities at our other
operating facilities.
Year Ended December 31, 2020 Compared to Year Ended December 31, 2019

Net sales: Net sales (excluding alumina sales) decreased by $220.2 million for
the twelve months ended December 31, 2020, compared to the same period in 2019,
primarily driven by unfavorable LME and regional premium price realizations of
$188.6 million and unfavorable volume and product mix of $31.6 million.



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Gross profit (loss): Gross loss increased by $12.6 million for the twelve months
ended December 31, 2020, compared to the same period in 2019, primarily driven
by unfavorable LME and regional premium price realizations of $188.6 million.
The increases to gross loss were offset by favorable raw material price
realizations of $178.6 million.
Selling, general and administrative expenses: Selling, general and
administrative expenses decreased $3.9 million in 2020 compared to 2019,
primarily due to decreases in compensation cost in the current year, partially
offset by increases in professional fees.

Net (gain) loss on forward and derivative contracts: In 2020, we recognized
losses of $17.3 million primarily related to LME, MWP and Nord Pool fixed
forward financial sales contracts. The losses were primarily driven by
fluctuations in forward prices. In 2019, we had recognized gains of $12.0
million primarily related to LME and MWP fixed forward financial sales
contracts. The gains were primarily driven by decreases in the LME and MWP
prices during 2019.
Income tax expense (benefit): We have a valuation allowance against all of our
U.S. and certain foreign deferred tax assets. We recognized a $3.1 million
income tax benefit in 2020 as compared to income tax benefit of $8.4 million in
2019. The decrease in income tax benefit year over year primarily relates to an
increase in earnings of certain of our foreign entities.
Year Ended December 31, 2019 Compared to Year Ended December 31, 2018
Net sales: Net sales for the twelve months ended December 31, 2019 decreased
$56.6 million compared to the same period in 2018, driven by lower price
realizations of $249.5 million primarily resulting from decreases in the LME
price offset by $136.2 million in favorable volume and product mix year over
year.
Gross profit: Gross profit for the twelve months ended December 31, 2019
decreased $1.0 million compared to the same period in 2018, driven primarily by
lower price realizations of $249.5 million due to decreases in the LME. The
decrease to gross profit is offset by favorable price realizations of alumina
and other raw materials of $170.7 million, power price realizations of $47.2
million, volume and product mix of $24.2 million, and operating expenses of $5.6
million.
Selling, general and administrative expenses: Selling, general and
administrative expenses decreased $7.2 million in 2019 compared to 2018,
primarily due to increases in compensation cost in the current year (favorable
stock compensation expense in 2018, reflecting our lower stock price).

Net (gain) loss on forward and derivative contracts: In 2019, we recognized
gains of $12.0 million primarily related to LME and MWP fixed forward financial
sales contracts. The gains were primarily driven by decreases in the LME and MWP
prices during 2019. In 2018, we recognized gains of $6.3 million primarily
related to Nord Pool and LME fixed forward financial sales contracts which
settle from November 2019 through December 2020. These gains were primarily
driven by the increase in the Nord Pool price.
Income tax expense (benefit): We have a valuation allowance against all of our
U.S. and certain foreign deferred tax assets. We recognized an $8.4 million
income tax benefit in 2019 as compared to income tax benefit of $0.2 million in
2018. The increase in income tax benefit year over year primarily relates to a
decrease in earnings of certain of our foreign entities.

Liquidity and Capital Resources
Liquidity
Our principal sources of liquidity are available cash and cash flow from
operations. We also have access to our existing revolving credit facilities and
have raised capital in the past through public equity and debt markets. We
regularly explore various other financing alternatives.  Our principal uses of
cash include the funding of operating costs (including post-retirement
benefits), debt service requirements, capital expenditures, investments in our
growth activities and in related businesses, working capital and other general
corporate requirements.

We believe that cash provided from operations and financing activities will be
adequate to cover our operations and business needs over the next 12 months. As
of December 31, 2020, we had cash and cash equivalents of approximately $81.6
million and unused availability under our revolving credit facilities of $100.6
million, resulting in a total liquidity position of approximately $182.2
million.



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Adverse changes in the price of aluminum or our principal costs of production
could materially impact our ability to generate and raise cash. Furthermore, the
COVID-19 pandemic could continue to impact the economy which may impact the
price of our products as well as our ability to access capital and/or the terms
under which we can do so. In 2020, we took preemptive action to preserve our
liquidity and manage our cash flow. Such actions include reducing discretionary
spending, optimizing working capital and deferring non-essential capital
projects. To preserve liquidity in light of the uncertainty in the global
markets due to COVID-19, in March 2020, we drew down a total of $90.0 million
under our U.S. and Iceland revolving credit facilities. We have since repaid
$45.0 million on our U.S. revolving credit facility. As of December 31, 2020,
the remaining outstanding borrowings on the Iceland revolving credit facility
were $45.0 million. We also effectively extended the maturities of our principal
debt obligations. On July 1, 2020, we issued $250.0 million in aggregate
principal amount of our senior secured notes that will mature in 2025 (the "2025
Notes") and used the proceeds, together with cash on hand, to purchase all of
our 7.5% senior secured notes that were set to mature in 2021 (the "2021
Notes"). In connection with the offering of the 2025 Notes, we also entered into
Amendment No.1 to our U.S. revolving credit facility extending the maturity date
to May 16, 2023. As the impact of the COVID-19 pandemic on the economy and our
operations is fluid and constantly evolving, we will continue to assess a
variety of measures to improve our financial performance and liquidity. See

Item 1A. Risk Factors for additional information.



Available Cash
Our available cash and cash equivalents balance at December 31, 2020 was $81.6
million compared to $38.9 million at December 31, 2019.
Sources and Uses of Cash
Our cash flows from operating, investing and financing activities as reflected
in the consolidated statement of cash flows for the twelve months
ended December 31, 2020, 2019 and 2018 are summarized below:
                                                                    Twelve 

months ended December 31,


                                                                2020               2019              2018
                                                                          (dollars in millions)
Net cash provided by (used in) operating activities         $     42.9          $   17.7          $  (69.1)
Net cash (used in) investing activities                          (11.8)            (38.8)            (82.9)
Net cash provided by financing activities                         13.5              21.1              23.7

Change in cash, cash equivalents and restricted cash $ 44.6

$ - $ (128.3)

Year Ended December 31, 2020 Compared to Year Ended December 31, 2019



Net cash provided by operating activities for 2020 was $42.9 million, compared
to $17.7 million for 2019. The increase in net cash provided by operating
activities was primarily driven by improvements in working capital. The
improvements in working capital were primarily attributable to timing of raw
material receipts and the timing of trade receivable collections, offset by
increasing raw material prices.

The decrease in net cash used in investing activities during 2020 was due to
lower capital expenditures related to Hawesville restart activities and deferral
of capital projects in response to COVID-19.

Net cash provided by financing activities decreased by $7.6 million during 2020
primarily due to payments made on our term loan with Glencore Ltd. ("the
Hawesville Term Loan"), offset by net borrowings on our U.S. revolving credit
facility and Iceland revolving credit facility. Borrowings on our revolving
credit facilities are available, if needed, for working capital requirements,
general corporate or other purposes.
Year Ended December 31, 2019 Compared to Year Ended December 31, 2018
Net cash provided by operating activities for 2019 was $17.7 million, compared
to net cash used in operating activities of $69.1 million for 2018. The increase
in net cash provided by operating activities was primarily driven by lower
inventory costs and a decrease in accounts receivable due to timing of
receivable collections.


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The decrease in net cash used in investing activities was due to lower capital
expenditures related to Hawesville restart activities and the receipt of $20.8
million from the sale of our interest in Baise Haohai Carbon Co., Ltd. ("BHH"),
a former joint venture with Guangxi Qiangqiang Carbon Co., Ltd. ("GQQ") during
2019.

Net cash provided by financing activities decreased by $2.6 million during 2019
due to lower net borrowings under our U.S. revolving credit facility, offset by
proceeds from the Hawesville Term Loan. Borrowings on our U.S. revolving credit
facility are short term in nature to fund working capital requirements and are
repaid on a continuous basis. Borrowings on our Hawesville Term Loan are
required to be paid ratably over 24 months beginning in January 2020 and are
used to partially finance the second phase of the Hawesville restart project.
Availability Under Our Credit Facilities
The U.S. revolving credit facility, dated May 2018, provides for borrowings of
up to $175.0 million in the aggregate including up to $110.0 million under a
letter of credit sub-facility, and also includes an uncommitted accordion
feature whereby borrowers may increase the capacity of the U.S. revolving credit
facility by up to $50.0 million, subject to agreement with the lenders. The U.S.
revolving credit facility matures in May 2023. Any letters of credit issued and
outstanding under the U.S. revolving credit facility reduce our borrowing
availability on a dollar-for-dollar basis.
We have also entered into, through our wholly-owned subsidiary Nordural
Grundartangi ehf ("Grundartangi"), a $50.0 million revolving credit facility,
dated November 2013, as amended (the "Iceland revolving credit facility"). The
Iceland revolving credit facility matures in November 2022.
The availability of funds under our credit facilities is limited by a specified
borrowing base consisting of certain accounts receivable, inventory and
qualified cash deposits which meet the lenders' eligibility criteria. Increases
in the price of aluminum and/or restarts of previously curtailed operations, for
example, increase our borrowing base by increasing our accounts receivable and
inventory balances; decreases in the price of aluminum and/or curtailments of
production capacity would decrease our borrowing base by reducing our accounts
receivable and inventory balances. As of December 31, 2020, our U.S. revolving
credit facility had a borrowing base of $129.9 million, no outstanding
borrowings, and $34.3 million in letters of credit outstanding. Of the
outstanding letters of credit, $16.2 million related to our power commitments
and the remainder are primarily for the purpose of securing secured certain debt
and workers' compensation commitments. As of December 31, 2020, our Iceland
revolving credit facility had a borrowing base of $50.0 million and $45.0
million in outstanding borrowings.
As of December 31, 2020, our credit facilities had $100.6 million of net
availability after consideration of our outstanding borrowings and letters of
credit. We may borrow and make repayments under our credit facilities in the
ordinary course based on a number of factors, including the timing of payments
from our customers and payments to our suppliers.
Our credit facilities contain customary covenants, including restrictions on
mergers and acquisitions, indebtedness, affiliate transactions, liens, dividends
and distributions, dispositions of collateral, investments and prepayments of
indebtedness, including in the U.S. revolving credit facility, a springing
financial covenant that requires us to maintain a fixed charge coverage ratio of
at least 1.0 to 1.0 any time availability under the U.S. revolving credit
facility is less than or equal to $17.5 million, or 10% of the borrowing base
but not less than $12.5 million. We intend to maintain availability to comply
with these levels any time we would not meet the ratio, which could limit our
ability to access the full amount of our availability under our U.S. revolving
credit facility. Our Iceland revolving credit facility contains a covenant that
requires Grundartangi to maintain a minimum equity ratio. As of December 31,
2020, we were in compliance with all such covenants or maintained availability
above such covenant triggers.
Senior Secured Notes
We have $250.0 million aggregate principal of senior secured notes that will
mature on July 1, 2025 (the "2025 Notes"), unless earlier refinanced in
accordance with their terms. Interest on the 2025 Notes is payable semi-annually
on January 1 and July 1 of each year, beginning on January 1, 2021, at a rate of
(i) 10.00% per annum in cash and (ii) 2.00% per annum in the form of additional
notes or in cash, at Century's option. The indenture governing the 2025 Notes
contains customary covenants which may limit our ability, and the ability of
certain of our subsidiaries, to: (i) incur additional debt; (ii) incur
additional liens; (iii) pay dividends or make distributions in respect of
capital stock; (iv) purchase or redeem capital stock; (v) make investments or
certain other restricted payments; (vi) sell assets; (vii) issue or sell stock
of certain subsidiaries; (viii) enter into transactions with shareholders or
affiliates; and (ix) effect a consolidation or merger.



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We applied the net proceeds from the offering of the 2025 Notes described above,
together with cash on hand, toward payment of the total consideration amount to
holders whose 2021 Notes were accepted and purchased in the tender offer and to
fund the redemption of any remaining 2021 Notes. As a result, the Company's and
the guarantors' obligations under the indenture governing the 2021 Notes have
been fully discharged.
Hawesville Term Loan
On April 29, 2019, we entered into a term loan agreement with Glencore Ltd.
pursuant to which the Company borrowed $40.0 million. Borrowings under the
Hawesville Term Loan were used to partially finance the second phase of the
Hawesville restart project. The Hawesville Term Loan matures on December 31,
2021, and is being repaid in 24 equal monthly installments of principal that
began on January 31, 2020. The Hawesville Term Loan bears interest, due monthly,
at a floating rate equal to LIBOR plus 5.375% per annum. The Hawesville Term
Loan is not secured by any collateral. As of December 31, 2020, the outstanding
balance of the Hawesville Term Loan was $20.0 million.
Contingent Commitments
We have a contingent obligation in connection with the "unwind" of a contractual
arrangement between Century Aluminum Kentucky ("CAKY"), Big Rivers and a third
party and the execution of a long-term cost-based power contract with Kenergy, a
member of a cooperative of Big Rivers, in July 2009. This contingent obligation
consists of the aggregate payments made to Big Rivers by the third party on
CAKY's behalf in excess of the agreed upon base amount under the long-term
cost-based power contract with Kenergy. As of December 31, 2020, the principal
and accrued interest for the contingent obligation was $26.6 million, which was
fully offset by a derivative asset. We may be required to make installment
payments for the contingent obligation in the future. These payments are
contingent based on the LME price of primary aluminum and the level of
Hawesville's operations. Based on the LME forward market at December 31, 2020
and management's estimate of the LME forward market beyond the quoted market
period, we believe that we will not be required to make payments on the
contingent obligation during the term of the agreement, which expires in 2028.
There can be no assurance that circumstances will not change thus accelerating
the timing of such payments.
Employee Benefit Plan Contributions
In 2013, we entered into a settlement agreement with the Pension Benefit
Guaranty Corporation ("PBGC") regarding an alleged "cessation of operations" at
our Ravenswood facility.  Pursuant to the terms of the agreement, we agreed to
make additional contributions (above any minimum required contributions) to our
defined benefit pension plans totaling approximately $17.4 million. Under
certain circumstances, in periods of lower primary aluminum prices relative to
our cost of operations, we are able to defer one or more of these payments, but
would then be required to provide the PBGC with acceptable security for deferred
payments. We did not make any contributions during the years ended December 31,
2020, 2019 and 2018. We have elected to defer certain payments under the PBGC
agreement and have provided the PBGC with the appropriate security. The
remaining contributions under this agreement are approximately $9.6 million.
Section 232 Aluminum Tariff
On March 23, 2018, the U.S. implemented a 10% tariff on imported primary
aluminum products into the U.S. These tariffs are intended to protect U.S.
national security by incentivizing the restart of primary aluminum production in
the U.S., reducing reliance on imports and ensuring that domestic producers,
like Century, can supply all the aluminum necessary for critical industries and
national defense.  In addition to primary aluminum products, the tariffs also
cover certain other semi-finished products. All imports that directly compete
with our products are covered by the tariff, with the exception of imports from
Australia, Argentina, Canada, and Mexico or imports that receive a product
exclusion from the Department of Commerce.
Other Items
In December 2020, we announced a preliminary agreement with Santee Cooper on a
new three year power agreement that is expected to be effective on April 1,
2021. This new power contract is expected to provide sufficient energy to allow
the smelter to increase its production to 75% of Mt. Holly's full production
capacity. We anticipate spending approximately $50.0 million in 2021 to bring
Mt. Holly's annualized production capacity to 170,000 tonnes. For certain risks
related to the anticipated restart, see   Item 1A. Risk Factors  .
In March 2018, we announced our intention to return our Hawesville smelter,
which since 2015 had been operating at approximately 40% capacity, to full
production and upgrade its existing reduction technology. The first phase of the
project,


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which involved the restart of the three potlines and approximately 150,000
tonnes of production capacity that had been curtailed in 2015, was successfully
completed on budget and ahead of schedule in early 2019. The second phase of the
project involves the rebuilding of the pots from the two potlines that had
continued to operate past their expected life cycle and the implementation of
certain new technology across all production. These two potlines were taken out
of production in February and September 2019, respectively. The rebuild of the
first of these potlines was completed in the second quarter of 2020. With the
restart of this potline, the Hawesville smelter is currently operating at
approximately 80% production capacity, with total project costs to date of
approximately $108.3 million. The rebuild of the fifth and final potline and the
completion of the technology upgrades is expected to be completed over the next
several years, subject to market conditions.
In May 2018, we temporarily curtailed one potline at our Sebree aluminum smelter
due to an equipment failure. Sebree was returned to full capacity by the end of
the third quarter of 2018. As of December 31, 2020, we received $19.9 million of
insurance proceeds. In January 2021, the claims process was concluded and a
final payment of $1.4 million of insurance proceeds was received on January 21,
2021.
In 2011, our Board of Directors approved a $60.0 million common stock repurchase
program and subsequently increased this program by $70.0 million in the first
quarter of 2015. Under the program, Century is authorized to repurchase up to
$130.0 million of our outstanding shares of common stock, from time to time, on
the open market at prevailing market prices, in block trades or otherwise. The
timing and amount of any shares repurchased will be determined by our management
based on its evaluation of market conditions, the trading price of our common
stock and other factors. We made no repurchases during the years ended 2020,
2019, and 2018. As of December 31, 2020, we had $43.7 million remaining under
the repurchase program authorization. The repurchase program may be expanded,
suspended or discontinued by our Board, in its sole discretion, at any time.
In November 2009, Century Aluminum of West Virginia, Inc. ("CAWV") filed a class
action complaint for declaratory judgment against the United Steel, Paper and
Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers
International Union ("USW"), the USW's local and certain CAWV retirees,
individually and as class representatives ("CAWV Retirees"), seeking a
declaration of CAWV's rights to modify/terminate retiree medical benefits.
Later in November 2009, the USW and representatives of a retiree class filed a
separate suit against CAWV, Century Aluminum Company, Century Aluminum Master
Welfare Benefit Plan, and various John Does with respect to the foregoing. On
August 18, 2017, the District Court for the Southern District of West Virginia
approved a settlement agreement in respect of these actions, pursuant to which,
CAWV agreed to make payments into a trust for the benefit of the CAWV Retirees
in the aggregate amount of $23.0 million over the course of ten years. Upon
approval of the settlement, we paid $5.0 million to the aforementioned trust in
September 2017 and agreed to pay the remaining amounts under the settlement
agreement in annual increments of $2.0 million for nine years. At December 31,
2020, we had $2.0 million in other current liabilities and $7.5 million in other
liabilities related to this agreement.
We are a defendant in several actions relating to various aspects of our
business. While it is impossible to predict the ultimate disposition of any
litigation, we do not believe that any of these lawsuits, either individually or
in the aggregate, will have a material adverse effect on our financial
condition, results of operations or liquidity. See   Note 15. Commitments and
Contingencies   to the consolidated financial statements included herein for
additional information.
Capital Resources
We intend to finance our future capital expenditures from available cash, cash
flow from operations and if necessary, borrowings under our existing revolving
credit facilities. For major investment projects, we would likely seek financing
from various capital and loan markets and may potentially pursue the formation
of strategic alliances. We may be unable, however, to issue additional debt or
equity securities, or enter into other financing arrangements on attractive
terms, or at all, due to a number of factors including a lack of demand,
unfavorable pricing, poor economic conditions, unfavorable interest rates, or
our financial condition or credit rating at the time. Future uncertainty in the
U.S. and international markets and economies may adversely affect our liquidity,
our ability to access the debt or capital markets and our financial condition.
Capital expenditures incurred for the year ended December 31, 2020 were $8.7
million, excluding expenditures of $5.6 million associated with the restart at
Hawesville. We estimate our total capital spending excluding the Mt. Holly
restart project in 2021 will be approximately $25.0 million, related to our
ongoing investment and sustainability projects at our plants.


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Critical Accounting Estimates
Our significant accounting policies are described in   Note 1. Summary of
Significant Accounting Policies   to the consolidated financial statements. The
preparation of the financial statements requires that management make judgments,
assumptions and estimates in applying these accounting policies. Those judgments
are normally based on knowledge and experience about past and current events and
on assumptions about future events. Critical accounting estimates require
management to make assumptions about matters that are highly uncertain at the
time of the estimate and a change in these estimates may have a material impact
on our financial position or results of operations. Significant judgments and
estimates made by our management include expenses and liabilities related to
inventories, pensions and other postretirement benefits ("OPEB"), deferred tax
assets and property, plant and equipment. Our management has discussed the
development and selection of these critical accounting estimates with the audit
committee of our Board of Directors and the Audit Committee has reviewed our
disclosure.
Inventories
Our inventories are stated at lower of cost or net realizable value ("NRV").
Our estimate of the market value of our inventories involves establishing a net
realizable value for both finished goods and the components of inventory that
will be converted to finished goods, raw materials and work in process. This
requires management to use its judgment when making assumptions about future
selling prices and the costs to complete our inventory during the period in
which it will be sold.
Our assumptions are subject to inherent uncertainties given the volatility
surrounding the market price for primary aluminum sales and the market price for
our major inputs, alumina and electrical power.
Although we believe that the assumptions used to estimate the market value of
our inventory are reasonable, actual market conditions at the time our inventory
is sold may be more or less favorable than management's current estimates.
Pension and Other Postretirement Benefit Liabilities
We sponsor several pension and other OPEB plans. Our liabilities under these
defined benefit plans are determined using methodologies that involve several
actuarial assumptions, the most significant of which are the discount rate,
health care cost inflation rate and the long-term rate of return on plan assets.
We review our actuarial assumptions on an annual basis and make modifications to
the assumptions when appropriate.
Discount Rate Selection
We select a discount rate for purposes of measuring obligations under defined
benefit plans by matching cash flows separately for each plan to the yields on
high-quality zero coupon bonds. We use the Ryan Above Median Yield Curve (the
"Ryan Curve"). We believe the projected cash flows used to determine the Ryan
Curve rate provide a good approximation of the timing and amounts of our defined
benefit payments under our plans and no adjustment to the Ryan Curve rate has
been made.
Weighted Average Discount Rate Assumption for:      2020       2019
Pension plans                                       2.58%      3.26%
OPEB plans                                          2.34%      3.07%


A change of a half percentage point in the discount rate for our defined benefit
plans would have the following effects on our obligations under these plans as
of December 31, 2020:
Effect of changes in the discount rates on the Projected        50 basis point          50 basis point
Benefit Obligations for:                                           increase                decrease
                                                                        (dollars in millions)
Pension plans                                                  $        (26.7)         $        30.4
OPEB plans                                                               (5.6)                   5.9


Medical Trend Rate


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Measurement of our postretirement benefit obligations requires the use of
several assumptions about factors that will affect the amount and timing of
future benefit payments. The assumed health care cost trend rates are the most
critical estimates for measurement of the postretirement benefit
obligation. Changes in the health care cost trend rates have a significant
effect on the amounts reported for the health care benefit obligation.
Medical cost inflation is initially estimated to be 6.1% and 6.7% for pre and
post-65 participants, respectively, declining to 4.5% over ten years and
thereafter. A one-percentage-point change in the assumed health care cost trend
rate would have had the following effects in 2020:
                                                           1% Increase      

1% Decrease


                                                               (dollars in 

millions)

Effect on total of service and interest cost components $ 0.3 $ (0.3) Effect on accumulated postretirement benefit obligation

           11.1      

(9.4)




Long-term Rate of Return on Plan Assets Assumption
Our expected long-term rate of return on plan assets is derived from our asset
allocation strategies and anticipated future long-term performance of individual
asset classes. Our analysis gives consideration to recent plan performance and
historical returns; however, the assumptions are primarily based on long-term,
prospective rates of return. The weighted average long-term rate of return on
plan assets for our defined benefit pension plans is 7.25% for 2020.
Based on information provided by independent actuaries and other relevant
sources, the Company believes that the assumptions used to estimate expenses,
assets and liabilities of pensions and other postretirement benefits are
reasonable; however, changes in these assumptions could impact the Company's
financial position, results of operations or cash flows.
Deferred Income Tax Assets
We regularly assess the likelihood that deferred tax assets will be recovered
from future taxable income. To the extent we believe that it is more likely than
not that a deferred tax asset will not be realized, a valuation allowance is
established. The amount of a valuation allowance is based upon our best estimate
of our ability to realize the net deferred tax assets. We have a valuation
allowance of $499.4 million recorded for all of our U.S. deferred tax assets and
a portion of our Icelandic deferred tax assets as of December 31, 2020.
Property, Plant and Equipment Impairment
We review our property, plant and equipment for impairment whenever events or
circumstances indicate that the carrying amount of these assets (asset group)
may not be recoverable. The carrying amount of the assets (asset group) is not
recoverable if it exceeds the sum of the undiscounted cash flows expected to
result from the use and eventual disposition of the assets (asset group). In
that case, an impairment loss would be recognized for the amount by which the
carrying amount exceeds the fair value of the assets (asset group), with the
fair value determined using a discounted cash flow calculation. These estimates
of future cash flows include management's assumptions about the expected use of
the assets (asset group), the remaining useful life, expenditures to maintain
the service potential, market and cost assumptions.
Determination as to whether and how much an asset is impaired involves
significant management judgment involving highly uncertain matters, including
estimating the future sales volumes, future selling prices and estimated raw
material and conversion costs, alternative uses for the asset, and estimated
proceeds from the disposal of the asset.
Other Contingencies
We are a defendant in several actions relating to various aspects of our
business. While it is impossible to predict the ultimate disposition of any
litigation, we do not believe that any of these lawsuits, either individually or
in the aggregate, will have a material adverse effect on our financial
condition, results of operations or liquidity. See   Note 15. Commitments and
Contingencies   to the consolidated financial statements included herein for
additional information.
Recently Issued Accounting Standards Updates


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Information regarding recently issued accounting pronouncements is included in


  Note 1. Summary of Significant Accounting Policies   to the consolidated
financial statements included herein.
Contractual Obligations
In the normal course of business, we have entered into various contractual
obligations that will be settled in cash. These obligations consist primarily of
long-term debt obligations and purchase obligations. The expected future cash
flows required to meet these obligations through the year 2029 are shown in the
table below. More information is available about these contractual obligations
in the notes to the consolidated financial statements included herein.
                                                         Payments Due by Period
                                    Total                2021      2022      2023      2024      2025       Thereafter
                                                          (dollars in millions)
Long-term debt (1)                $   323               $ 20      $ 45      $  -      $  -      $ 250      $         8
Estimated interest payments (2)       138                 32        31        30        30         15                -
Operating lease obligations (3)        44                  3         3         3         3          3               29
Purchase obligations (4)            1,557                543       318       256       220         72              148
Other long-term liabilities (5)        22                  6         4         6         3          3                -
Total                             $ 2,084                604       401       295       256        343              185



(1)Long-term debt includes principal repayments on our 2025 Notes, Hawesville
Term Loan, Iceland Revolving Credit facility, and the IRB. Payments are based on
the assumption that all outstanding debt instruments will remain outstanding
until their respective due dates. For our contingent obligation, based on the
LME forward market prices for primary aluminum at December 31, 2020, we believe
that we will not have any payment obligations through the term of the agreement,
which expires in 2028.
(2)Estimated interest payments on our long-term debt assume that all outstanding
debt instruments will remain outstanding until their respective due dates. Our
estimated future interest payments for any debt with a variable rate are based
on the assumption that the December 31, 2020 rate for that debt continues until
the respective due date. We assume that no interest payments on the contingent
obligation will be paid through the term of agreement, see above.
(3)Operating leases include long-term leases for land, office space,
automobiles, and mobile equipment.
(4)Purchase obligations include long-term alumina and power contracts, excluding
market-based power and raw material requirements contracts.  Purchase
obligations not executed or legally binding as of December 31, 2020 have been
excluded from this table.  For contracts with LME-based pricing provisions,
including our long-term Icelandic power contracts, we assumed an LME price using
the LME forward curve as of December 31, 2020.
(5)Other long-term liabilities include asset retirement obligations. Asset
retirement obligations are primarily estimated disposal costs for spent potliner
used in the reduction cells of our domestic smelters.

Material Commitments
We also have outstanding commitments related to pension, supplemental executive
retirement benefit ("SERB") plans, OPEB and workers' compensation obligations.
As of December 31, 2020, estimated future payments related to these obligations
through the year 2030 amount to approximately $186.1 million, $16.5 million,
$61.7 million and $9.8 million, respectively.
Item 7A. Quantitative and Qualitative Disclosures about Market Risk
Commodity Price and Raw Material Costs Sensitivities
Aluminum is an internationally traded commodity, and its price is effectively
determined on the LME plus any regional premium (e.g. the Midwest premium for
aluminum sold in the United States and the European Duty Paid premium for metal
sold into Europe) and any product premiums. From time to time, we may manage our
exposure to fluctuations in the LME price of primary aluminum and/or the
regional premium through financial instruments designed to protect our downside
price risk exposure. From time to time, we also enter into financial contracts
to offset fixed price sales arrangements with certain of our customers (the
"fixed for floating swaps").


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We are also exposed to price risk for alumina which is one of the largest
components of our cost of goods sold. Some of the alumina we purchase is priced
based on a published alumina index. As a result, our cost structure is exposed
to market fluctuations and price volatility. Because we sell our products based
principally on the LME price for primary aluminum, regional premiums and
value-added product premiums, we are not able to directly pass on increased
production costs to our customers. From time to time, we may manage our exposure
to fluctuations in our alumina costs by purchasing certain of our alumina
requirements under supply contracts with prices tied to the same indices as our
aluminum sales contracts (the LME price of primary aluminum).
Market-Based Power Price Sensitivity
Market-Based Electrical Power Agreements
Hawesville and Sebree have market-based electrical power agreements pursuant to
which EDF and Kenergy purchase electrical power on the open market and pass it
through at MISO energy pricing, plus transmission and other costs incurred by
them. Through March 31, 2021, 75% of Mt. Holly's electrical power requirements
are supplied at rates based on natural gas prices. See   Item 1. Business - Key
Production Costs - Electrical Power Supply Agreements   for additional
information about these market-based power agreements.
Power is supplied to Grundartangi from hydroelectric and geothermal sources
under long-term power purchase agreements. These power purchase agreements,
which will expire on various dates from 2023 through 2036 (subject to
extension), primarily provide power at LME-based variable rates. Since November
2019, the price of approximately 30% of Grundartangi's power requirements has
been linked to the market price for power in the Nord Pool power market. From
time to time, we may manage our exposure to fluctuations in the market price of
power through financial instruments designed to protect our downside risk
exposure.
Electrical Power Price Sensitivity
With the movement toward market-based power supply agreements, we have increased
our electrical power price risk for our operations, whether due to fluctuations
in the price of power available on the MISO or Nord Pool power markets or the
price of natural gas. Power represents one of our largest operating costs, so
changes in the price and/or availability of market power could significantly
impact the profitability and viability of our operations. Transmission line
outages, problems with grid stability or limitations on energy import capability
could also increase power prices, disrupt production through pot instability or
force a curtailment of all or part of the production at these facilities. In
addition, indirect factors that lead to power cost increases, such as any
increasing prices for natural gas or coal, fluctuations in or extremes in
weather patterns or new or more stringent environmental regulations may severely
impact our financial condition, results of operations and liquidity.
The consumption shown in the table below reflects each operation at 100%
production capacity and does not reflect partial production curtailments.
Electrical power price sensitivity by location:
                                      Hawesville             Sebree             Mt. Holly           Grundartangi              Total
Expected average load (in megawatts
("MW"))                                     482                  385                 400                    537                 1,804
Annual expected electrical power
usage (in megawatt hours ("MWh"))     4,222,320            3,372,600           3,504,000              4,704,120            15,803,040
Annual cost impact of an increase or
decrease of $1 per MWh (in millions) $      4.2          $       3.4

$ 3.5 $ 4.7 $ 15.8




Foreign Currency
We are exposed to foreign currency risk due to fluctuations in the value of the
U.S. dollar as compared to the Iceland krona ("ISK"), the Euro, the Chinese
renminbi and other currencies. Grundartangi's labor costs, part of its
maintenance costs and other local services are denominated in ISK and a portion
of its anode costs are denominated in Euros and Chinese renminbi.  We also have
deposits denominated in ISK in Icelandic banks, and our estimated payments of
Icelandic income taxes and any associated refunds are denominated in ISK.
Further, Vlissingen's labor costs, maintenance costs and other local services
are denominated in Euros and our existing Nord Pool power price swaps described
above are settled in Euros. As a result, an increase or decrease in the value of
those currencies relative to the U.S. dollar would affect Grundartangi's
operating margins.


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We may manage our exposure by entering into foreign currency forward contracts
or option contracts for forecasted transactions and projected cash flows for
foreign currencies in future periods. We have entered into financial contracts
to hedge the risk of fluctuations associated with the Euro under our power price
swaps described above (the "FX swaps").
Natural Economic Hedges
Any analysis of our exposure to the commodity price of aluminum should consider
the impact of natural hedges provided by certain contracts that contain pricing
indexed to the LME price for primary aluminum. Certain of our alumina contracts
and a substantial portion of Grundartangi's electrical power requirements were
indexed to the LME price for primary aluminum and provide a natural hedge for a
portion of our production.
Risk Management
Any metals, power, natural gas and foreign currency risk management activities
are subject to the control and direction of senior management within guidelines
established by Century's Board of Directors. These activities are regularly
reported to Century's Board of Directors.
Fair Values and Sensitivity Analysis
The following tables present the fair value of our derivative asset and
liabilities as of year end 2020 and 2019 and the effect on the fair value of a
hypothetical ten percent (10%) adverse change in the market prices in effect at
December 31, 2020 and 2019. Our risk management activities do not include any
trading or speculative transactions.
                                              Asset Fair Value              

Fair Value with 10% Adverse Price Change


                                          2020                   2019                     2020                     2019
Commodity contracts (1)            $       12.8             $      19.7          $               4.0          $       (2.7)
Foreign exchange contracts (2)              2.4                       -                         (2.5)                    -
  Total                            $       15.2             $      19.7          $               1.5          $       (2.7)



                                                                                Liability Fair Value with 10% Adverse
                                           Liability Fair Value                             Price Change
                                        2020                  2019                   2020                    2019
Commodity contracts (1)            $       16.7          $       3.6          $           59.1          $        7.1
Foreign exchange contracts (2)                -                  0.6                         -                   1.2
  Total                            $       16.7          $       4.2          $           59.1          $        8.3

(1) Commodity contracts reflect our outstanding LME forward financial sales contracts, MWP forward financial sales contracts, fixed for floating swaps, NYMEX Henry Hub natural gas price swaps, and Nord Pool power price swaps. (2) Foreign exchange contracts reflect our outstanding FX swaps.








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