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                                                                   Exhibit 10.16

                               SIDE AGREEMENT TO
                 AGREEMENT TO TOLL CONVERT ALUMINA INTO ALUMINUM
                               (TOLLING CONTRACT)

                       The parties to this Agreement are:

                       HYDRO ALUMINUM METAL PRODUCTS NORTH AMERICA, INC.,
                       a Delaware corporation, formerly known as Hydro
                       Aluminum Louisville, Inc. ("Hydro"), and

                       GOLDENDALE ALUMINUM COMPANY,
                       a Delaware corporation, formerly known as Columbia
                       Aluminum Corporation (the "Company").

            Hydro and the Company are parties to and are performing a contract
dated May 22, 1996, entitled "Agreement to Toll Convert Alumina Into Aluminum
(Tolling Contract)" (the "Tolling Contract"). The Tolling Contract was amended
by the First Amendment to Agreement to Toll Convert Alumina Into Aluminum
(Tolling Contract) dated December 21, 1998 (the "First Amendment").

            As a consequence of the current power market conditions in the
Pacific Northwest, the Company has curtailed production at its aluminum smelter
near Goldendale, Washington (the "Goldendale Plant") and allowed the Bonneville
Power Administration ("BPA") to remarket the excess power made available because
of the curtailment.

            The Company has entered into a Remarketing Addendum to the 1996
Agreement dated December 29, 2000 (the "Remarketing Addendum") with the United
States of America, Department of Energy, acting by and through the BPA.

            Hydro will incur costs and losses from curtailment of metal
production at the Goldendale Plant, including costs of reselling alumina
designated for the Goldendale Plant and costs related to the establishment of
new sources of aluminum to its customers. Such curtailment will also involve a
significant market risk for Hydro since alternative sourcing arrangements may
affect supplies to its customers and Hydro's longer term credibility in the
marketplace.

            THEREFORE, in consideration of their mutual promises, the parties
agree as follows:

1.          INTERPRETATION

            Any reference to the Tolling Contract in this Agreement shall mean
            the Tolling Contract as amended by the First Amendment. This
            Agreement shall be interpreted and construed in the context of and
            in accordance with the provisions and defined terms of the Tolling
            Contract.

2.          CURTAILMENT OF METAL PRODUCTION

            Hydro and the Company previously agreed, for the period from October
            1, 2000 through December 31, 2002 (the "First Curtailment Period"),
            to curtail the production level at the Goldendale Plant by 53,000
            metric tons annually (the "First Curtailment"), to a production
            level of 105,000 metric tons annually.



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            For the period from December 24, 2000 through September 30, 2001
            (the "Second Curtailment Period"), Hydro and the Company have agreed
            to further curtail the production level at the Goldendale Plant by
            an additional 83,000 metric tons annually (the "Second
            Curtailment"). Consequently, during the Second Curtailment Period
            the Company shall manufacture and Hydro shall take delivery of a
            total of approximately 16,500 metric tons of aluminum metal. The
            quantity of aluminum metal produced within the Second Curtailment
            Period by the Company in any rolling three-month period from tolling
            Hydro's alumina hereunder may not be less than 5,500 metric tons.
            All such production shall be P1020 and, in the event that any such
            production does not meet such specification, GAC shall compensate
            Hdyro for any damages incurred as a result without reference to
            Sections 11 or 12 of the Tolling Contract.

            Hydro's obligation to deliver alumina shall be reduced accordingly
            with respect to both the First Curtailment and the Second
            Curtailment.

            No further curtailments of the metal production at the Goldendale
            Plant shall take place without Hydro's prior written approval, which
            shall not be unreasonably withheld, conditioned or delayed.

3.          COMPENSATION

            With respect to the First Curtailment, Hydro and the Company have
            entered into a separate agreement dated December 8, 2000 pursuant to
            which Hydro shall be compensated for its loss in connection with
            resale of alumina. In addition, the Company shall pay compensation
            to Hydro of $750,000 (the "First Compensation") for other direct
            costs related to the First Curtailment.

            The First Compensation shall be payable in full upon execution of
            this Agreement.

            In addition, Hydro and the Company further agree to suspend any
            shipments of metal due to Northwest Aluminum Company ("NAC") from
            the Goldendale Plant during the period of curtailment, which
            currently is expected to last through 2002. The parties will
            negotiate in good faith regarding further suspension of deliveries
            in the event the First Curtailment is extended. The agreement
            whereby Hydro sells metal to NAC shall be extended to coincide with
            the term of the Tolling Contract.

            Hydro and the Company agree to extend the Tolling Contract through
            2013 (two additional years).

            With respect to Hydro's estimated losses resulting from the Second
            Curtailment, the Company shall pay to Hydro compensation (the
            "Second Compensation") of $38,000,000 (the "Second Compensation"),
            for the period of December 24, 2000 through September 30, 2001. The
            Second Compensation shall not be adjusted, regardless of whether
            Hydro or the Company at a later stage can demonstrate that Hydro's
            actual total losses exceeded or fell below such estimate.

            The Second Compensation shall be payable as follows:

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                      $ 9,250,000, due March 1, 2001;

                      $ 3,500,000 due on the first day of each month
                      from and including April 1, 2001 and through
                      September 1, 2001; and

                      the remaining balance due October 1, 2001


            Save as expressly set forth in this Agreement, none of the parties
            shall have any liability towards the other for the consequences of
            the First Curtailment and the Second Curtailment.

4.          FURTHER AGREEMENTS

            Golden Northwest Aluminum, Inc. shall negotiate in good faith with
            Hydro an agreement regarding joint marketing of billet from the
            aluminum smelter in The Dalles, Wasco County, Oregon.

            Golden Northwest Aluminum, Inc. and Norsk Hydro Americas, Inc. shall
            negotiate in good faith toward an amendment of the Subordinated Loan
            Agreement dated December 21, 1998 between such parties so as to
            permit Hydro to utilize the undrawn proceeds thereunder to purchase
            from the Goldendale Aluminum Company Retirement Plan (the "Plan") up
            to $10,000,000 of Goldendale Holding Company Preferred Stock held by
            the Plan.

            Hydro shall negotiate in good faith with GAC with regard to revision
            of the casthouse base upcharge set forth in the Tolling Contract.

5.          USE OF PROCEEDS FROM REMARKETING OF POWER

            The Company shall use Goldendale Net Proceeds for Qualified
            Expenditures as specified in the Remarketing Addendum. The Company
            may change the definition of Qualified Expenditures with Hydro's
            prior written consent, which if requested shall not be unreasonably
            withheld, conditioned or delayed.

6.          EFFECTS OF THE EXPIRY OF THE FIRST CURTAILMENT PERIOD

            Upon expiry of the First Curtailment Period, the Company shall
            resume full production in accordance with the provisions of the
            Tolling Contract unless otherwise agreed.

7.          CONDITIONS TO EFFECTIVENESS

            The terms of this Agreement shall not be effective until GAC has
            obtained the consent of Fleet Bank, N.A., as agent under the Credit
            Agreement dated December 21, 1998 with GAC and NAC.

8.          METAL FROM CLOSURE

            All metal that is taken from reduction cells at the Goldendale Plant
            during either Curtailment shall be used to make products as directed
            and sold by Hydro.

9.          GOVERNING LAW AND ARBITRATION OF DISPUTES

            This Agreement shall be subject to Section 20 and Section
            25 of the Tolling Contract.

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10.         CAPTIONS AND COUNTERPARTS

            Section captions are for convenience and are not part of the
            substance of this document. This Agreement may be executed in
            counterparts, each of which shall be an original and all of which
            taken together shall be one and the same instrument.

11.         AUDIT

            As a lender and partner, Hydro reserves the right to review the
            financial statements and results of expenditures as referenced above
            and alumina and metal inventories.

Dated: January __, 2001

HYDRO ALUMINUM METAL PRODUCTS NORTH AMERICA, INC.

     By: /s/
        -----------------------------------
     Name:
          ---------------------------------
     Title:
           --------------------------------

GOLDENDALE ALUMINUM COMPANY

     By: /s/
        -----------------------------------
     Name:
          ---------------------------------
     Title:
           --------------------------------

Accepted with respect to the obligations set forth in Section 4:

GOLDEN NORTHWEST ALUMINUM, INC.


     By: /s/
        -----------------------------------
     Name:
          ---------------------------------
     Title:
           --------------------------------

NORSK HYDRO AMERICAS, INC.

     By: /s/
        -----------------------------------
     Name:
          ---------------------------------
     Title:
           --------------------------------
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                      ALUMINA SETTLEMENT 2000/2001 BETWEEN
                 GOLDENDALE ALUMINUM COMPANY AND HYDRO ALUMINUM

        We confirm our agreement to an Alumina settlement subject to the
fulfillment of the terms and conditions set out herein. The settlement is
subject to, and shall be interpreted in conjunction with, the alumina contract
between Hydro Aluminum (HAL) and Goldendale Aluminum Company (GAC), which shall
remain in full force and effect, except as amended below.

        All payments to be made hereunder are subject to the payment terms of
the alumina contract.

2000:

        Delivery of one cargo of 35,000 MT originally scheduled to GAC was
canceled and sold by HAL at 165 USD/MT. This gave a loss versus the purchase
price of 20.73 USD/MT, i.e., a total loss of 725,550 USD, which shall be
compensated by GAC. Payment to be made prior to 31st of December, 2001.

2001:

        HAL and GAC have agreed to extend the tolling contract by one year at
prevailing contract terms. Goldendale's total capacity in year 2012 to apply.
Tolling contract shall be amended accordingly. Jim Walters/Lars Narvestad will
revert to GAC on this.

        The final settlement amount to be paid by GAC to Hydro Aluminum in 2001
is 1,275,000 USD (85,000 MT x 15 USD/MT). 318,750 USD shall be invoiced each
quarter and paid to HAL prior to February 28, May 31, August 31 and December 31,
respectively.

        For 2002 Hydro Aluminum and GAC have agreed to discuss a settlement
during 2001.

Goldendale Aluminum Company                 Hydro Aluminum a.s.



Dec 8, 2000                                  16/11-00
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Date:                                       Date:


/s/ BRETT WILCOX                             /s/
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Sign:                                       Sign: