<Page>

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 10-Q

(Mark One)
[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
     For the quarterly period ended JULY 31, 2001

                                       Or
[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
     For the transition period from _______ to _______

                        COMMISSION FILE NUMBER 333-66291

                        THE DOE RUN RESOURCES CORPORATION
             (Exact name of registrant as specified in its charter)

             NEW YORK                                           13-1255630
  (State or other jurisdiction                                 (IRS Employer
of incorporation or organization)                            Identification No.)


       1801 PARK 270 DRIVE, SUITE 300
            ST. LOUIS, MISSOURI                                    63146
(Address of principal executive offices)                         (Zip Code)

Registrant's telephone number, including area code (314) 453 - 7100

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the proceeding 12 months (or for such shorter period that the registrant was
required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.

                                                                [ ] YES   [X] NO

Number of shares outstanding of each of the issuer's classes of common stock, as
of September 14, 2001:

COMMON STOCK, $.10 PAR VALUE                                        1,000 SHARES
<Page>

                        THE DOE RUN RESOURCES CORPORATION
                               INDEX TO FORM 10-Q

<Table>
<Caption>
                                                                        PAGE NO.
                                                                        --------
<S>                                                                     <C>
PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

                        THE DOE RUN RESOURCES CORPORATION

Condensed Consolidated Balance Sheets
     July 31, 2001 and October 31, 2000                                    3

Condensed Consolidated Statements of Operations
     three and nine months ended July 31, 2001 and 2000                    4

Consolidated Statements of Comprehensive Income
     nine months ended July 31, 2001 and 2000                              5

Condensed Consolidated Statements of Cash Flows
     nine months ended July 31, 2001 and 2000                              6

Notes to Consolidated Financial Statements                               7-24

                               DOE RUN PERU S.R.L

Condensed Consolidated Balance Sheets
     July 31, 2001 and October 31, 2000                                   25

Condensed Consolidated Statements of Operations
     three and nine months ended July 31, 2001 and 2000                   26

Condensed Consolidated Statements of Cash Flows
     nine months ended July 31, 2001 and 2000                             27

Notes to Condensed Consolidated Financial Statements                    28-30

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF
     FINANCIAL CONDITION AND RESULTS OF OPERATIONS                      31-41

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT
     MARKET RISK                                                          42

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS                                                 42

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K                                  42

SIGNATURES                                                                43
</Table>
<Page>

                        THE DOE RUN RESOURCES CORPORATION
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<Table>
<Caption>
                                                                            JULY 31,         OCTOBER 31,
                                                                              2001               2000
                                                                           ---------         -----------
                                                                          (UNAUDITED)
<S>                                                                       <C>                <C>
                                     ASSETS

Current assets:
    Cash                                                                   $   9,240          $   8,295
    Trade accounts receivable, net of allowance for
       doubtful accounts                                                      73,542             77,018
    Inventories                                                              117,580            118,726
    Prepaid expenses and other current assets                                 21,229             40,250
    Net deferred tax assets                                                    4,431              2,592
                                                                           ---------          ---------
       Total current assets                                                  226,022            246,881
                                                                           ---------          ---------
Property, plant and equipment, net                                           267,237            275,514
Special term deposit                                                         125,000            125,000
Net deferred tax assets                                                        5,304              4,598
Other noncurrent assets, net                                                  10,153             12,952
                                                                           ---------          ---------
       Total assets                                                        $ 633,716          $ 664,945
                                                                           =========          =========

                     LIABILITIES AND SHAREHOLDER'S DEFICIT

Current liabilities:
    Short-term borrowings and current maturities of long-term debt         $   5,709          $  14,824
    Accounts payable                                                          40,120             53,424
    Accrued liabilities                                                       65,060             50,789
                                                                           ---------          ---------
       Total current liabilities                                             110,889            119,037

Long-term debt, less current maturities                                      496,621            498,686
Other noncurrent liabilities                                                  52,983             54,136
                                                                           ---------          ---------
       Total liabilities                                                     660,493            671,859

Shareholder's deficit:
    Common stock, $.10 par value, 1,000 shares authorized,
         issued, and outstanding                                                  --                 --
    Additional paid-in capital                                                 5,238              5,238
    Accumulated deficit                                                      (30,951)           (10,947)
    Accumulated other comprehensive losses                                    (1,064)            (1,205)
                                                                           ---------          ---------
       Total shareholder's deficit                                           (26,777)            (6,914)
                                                                           ---------          ---------
       Total liabilities and shareholder's deficit                         $ 633,716          $ 664,945
                                                                           =========          =========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.


                                       3
<Page>

                        THE DOE RUN RESOURCES CORPORATION
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
                             (DOLLARS IN THOUSANDS)

<Table>
<Caption>
                                                                        THREE MONTHS ENDED              NINE MONTHS ENDED
                                                                             JULY 31,                        JULY 31,
                                                                    -------------------------       -------------------------
                                                                      2001             2000           2001            2000
                                                                    ---------       ---------       ---------       ---------
<S>                                                                 <C>             <C>             <C>             <C>
Net sales                                                           $ 179,219       $ 194,788       $ 558,044       $ 597,299

Costs and expenses:
      Cost of sales                                                   153,958         175,963         497,936         532,441
      Depletion, depreciation and amortization                          7,479           7,399          22,513          22,263
      Selling, general and administrative                               6,241           7,243          21,309          23,809
      Exploration                                                         387           1,689           1,215           3,230
      Unrealized gain on derivative financial instruments              (1,477)             --          (1,843)             --
                                                                    ---------       ---------       ---------       ---------
        Total costs and expenses                                      166,588         192,294         541,130         581,743
                                                                    ---------       ---------       ---------       ---------
        Income from operations                                         12,631           2,494          16,914          15,556

Other income (expense):
      Interest expense                                                (14,972)        (15,601)        (45,897)        (46,026)
      Interest income                                                   3,956           3,613          11,290          10,832
      Other, net                                                         (238)            949             113           1,065
                                                                    ---------       ---------       ---------       ---------
                                                                      (11,254)        (11,039)        (34,494)        (34,129)
                                                                    ---------       ---------       ---------       ---------
        Income (loss) before income tax
            expense (benefit)                                           1,377          (8,545)        (17,580)        (18,573)

Income tax expense (benefit)                                           (1,582)           (173)         (1,509)          1,480
                                                                    ---------       ---------       ---------       ---------
        Income (loss) before extraordinary item and cumulative
            effect of change in accounting principle                    2,959          (8,372)        (16,071)        (20,053)

       Extraordinary item related to
            retirement of long term debt                                 (159)             --            (159)             --

        Cumulative effect of change in accounting principle,
            net of income tax benefit                                      --              --          (3,774)             --
                                                                    ---------       ---------       ---------       ---------
                  Net income (loss)                                 $   2,800       $  (8,372)      $ (20,004)      $ (20,053)
                                                                    =========       =========       =========       =========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       4
<Page>

                        THE DOE RUN RESOURCES CORPORATION
           CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)
                             (DOLLARS IN THOUSANDS)

<Table>
<Caption>
                                                                 NINE MONTHS ENDED
                                                                      JULY 31,
                                                              -----------------------
                                                                2001           2000
                                                              --------       --------
<S>                                                           <C>            <C>
Net loss                                                      $(20,004)      $(20,053)
Unrealized gain on derivative financial instruments, net           141             --
                                                              --------       --------
      Comprehensive loss                                      $(19,863)      $(20,053)
                                                              ========       ========

</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       5
<Page>

                        THE DOE RUN RESOURCES CORPORATION
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                             (DOLLARS IN THOUSANDS)

<Table>
                                                                              NINE MONTHS ENDED
                                                                                  JULY 31,
                                                                           -----------------------
                                                                             2001           2000
                                                                           --------       --------
<S>                                                                        <C>            <C>
Cash flows from operating activities:
    Net loss                                                               $(20,004)      $(20,053)
    Extraordinary loss on debt retirement                                       159             --
    Cumulative effect of change in accounting principle                       4,254             --
    Adjustments to reconcile net loss to net cash
       provided by (used in) operating activities:
        Depreciation, depletion and amortization                             22,513         22,263
        Imputed interest and amortization of deferred financing costs         2,763          2,833
        Unrealized gain on derivative financial instruments                  (1,843)            --
        Deferred income taxes                                                (2,545)          (516)
        Increase/(decrease) resulting from other changes in
            assets and liabilities:                                          22,290        (12,323)
                                                                           --------       --------
                 Net cash provided by (used in) operating activities         27,587         (7,796)

Cash flows from investing activities:
    Purchases of property, plant and equipment                              (18,386)       (25,197)
    Net proceeds from sales of assets                                         4,912             --
                                                                           --------       --------
        Net cash used in investing activities                               (13,474)       (25,197)
Cash flows from financing activities:
    Proceeds from (payments on) revolving loans and
       short term borrowings, net                                            (4,783)        32,863
    Payments on long-term debt                                               (8,010)        (2,732)
    Payment of deferred financing costs                                        (375)            --
                                                                           --------       --------
        Net cash provided by (used in) financing activities                 (13,168)        30,131
                                                                           --------       --------
        Net increase (decrease) in cash                                         945         (2,862)

Cash at beginning of period                                                   8,295          9,886
                                                                           --------       --------
Cash at end of period                                                      $  9,240       $  7,024
                                                                           ========       ========
Supplemental disclosure of cash flow information -
    Cash paid during the period for:
       Interest, net of capitalized interest                               $ 31,115       $ 30,699
                                                                           ========       ========
       Income taxes                                                        $    457       $  1,314
                                                                           ========       ========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       6
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(1)  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

          UNAUDITED INTERIM FINANCIAL STATEMENTS

     These interim consolidated financial statements include the accounts of The
     Doe Run Resources Corporation and its subsidiaries (collectively, the
     Company). In the opinion of management, the interim consolidated financial
     statements contain all adjustments, consisting of normal recurring
     accruals, necessary to present fairly the consolidated financial position
     as of July 31, 2001 and results of operations for the three and nine month
     periods ended July 31, 2001 and 2000. Interim periods are not necessarily
     indicative of results to be expected for the year.

          RECLASSIFICATIONS

     Certain prior year balances have been reclassified in order to conform to
     current presentation.

(2)  CHANGE IN ACCOUNTING PRINCIPLE

     Statement of Financial Accounting Standards No. 133, ACCOUNTING FOR
     DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES, was issued by the Financial
     Accounting Standards Board in June 1998, and amended by Statement No. 138,
     ACCOUNTING FOR CERTAIN DERIVATIVE INSTRUMENTS AND CERTAIN HEDGING
     ACTIVITIES, AN AMENDMENT OF FASB STATEMENT NO. 133, issued in June 2000
     (collectively, FAS 133). Under FAS 133, entities are required to carry all
     derivative instruments in the statement of financial position at fair
     value. The accounting for changes in the fair value (i.e. gains and losses)
     of a derivative instrument depends on whether it has been designated and
     qualifies as part of a hedging relationship, and if so, whether the
     derivative instrument is designated as a hedge of exposures to changes in
     fair values, cash flows or foreign currencies. If the hedged exposure is
     changes in fair values, the gain (loss) is recognized in earnings in the
     period of change, with an equal and offsetting (loss) gain recognized on
     the change in value of the hedged item. If the hedged exposure is changes
     in cash flows, the effective portion of the gain (loss) is reported as a
     component of other comprehensive income (outside earnings) until the
     forecasted hedged transaction affects earnings, when it is reclassified
     into earnings.

     The Company adopted FAS 133 as of November 1, 2000, in the first quarter in
     which it was required by the standard, as amended. The adoption of FAS 133
     resulted in a net transition loss of $3,774, net of income tax benefit of
     $480, and a gain recorded in other comprehensive income of $70.

(3)  INVENTORIES

     Inventories consist of the following:

<Table>
<Caption>
                                               JULY 31,     OCTOBER 31,
                                                 2001          2000
                                               --------     ----------
<S>                                            <C>          <C>
     Finished metals and concentrates          $ 23,243      $ 20,408
     Metals and concentrates in process          60,417        57,391
     Materials, supplies and repair parts        33,920        40,927
                                               --------     ----------
                                               $117,580      $118,726
                                               ========      ========
</Table>

     Materials, supplies and repair parts are stated net of reserves for
     obsolescence of approximately $5,405 and $4,472 at July 31, 2001 and
     October 31, 2000, respectively.


                                       7
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(4)  DEBT

     On June 26, 2001, the Company retired its obligation to Boeing Capital
     Corporation, with proceeds from the sale of equipment securing the note.
     The Company incurred prepayment penalties of $314, for which it signed a
     noninterest-bearing note, payable in 36 monthly installments, commencing
     August 1, 2001. The new note was discounted to a fair value of $159.

     A capital lease for computer equipment caused property, plant and
     equipment, prepaid expenses and long term debt to increase by $647, $99 and
     $746, respectively, during the nine months ended July 31, 2001.

(5)  SEGMENT INFORMATION

     The Company's operating segments are separately managed business units that
     are distinguished by products, location and production processes. The
     primary lead segment includes integrated mining, milling and smelting
     operations located in Missouri. The secondary lead segment, also located in
     Missouri, recycles lead-bearing feed materials, primarily spent batteries.
     The fabricated products segment produces value-added lead products. The
     Peruvian operations produce an extensive product mix of non-ferrous and
     precious metals through a subsidiary, Doe Run Peru S.R.L. (Doe Run Peru).

<Table>
<Caption>
                                                              THREE MONTHS ENDED               NINE MONTHS ENDED
                                                                   JULY 31,                        JULY 31,
                                                           -------------------------       -------------------------
     OPERATING SEGMENTS - REVENUES                           2001             2000           2001            2000
                                                           ---------       ---------       ---------       ---------
<S>                                                        <C>             <C>             <C>             <C>
     Revenues from external customers:
         Peruvian operations                               $ 109,583       $ 118,689       $ 334,095       $ 361,001
         Primary lead                                         44,545          52,644         146,773         167,346
         Secondary lead                                       16,833          17,786          55,336          46,601
         Fabricated products                                   6,760           6,402          17,981          20,580
                                                           ---------       ---------       ---------       ---------
                  Total                                      177,721         195,521         554,185         595,528

     Revenues from other operating segments: (1)
         Peruvian operations                                      --              24              --           1,573
         Primary lead                                          1,160             826           2,708           1,949
         Secondary lead                                           76              10             380             371
         Fabricated products                                      --               6              --              17
                                                           ---------       ---------       ---------       ---------
         Total                                                 1,236             866           3,088           3,910
                                                           ---------       ---------       ---------       ---------
         Total revenues for reportable segments              178,957         196,387         557,273         599,438
                  Other revenues/gains (losses) (2)            1,498            (733)          3,859           1,771
                  Intersegment eliminations                   (1,236)           (866)         (3,088)         (3,910)
                                                           ---------       ---------       ---------       ---------
                          Total consolidated revenues      $ 179,219       $ 194,788       $ 558,044       $ 597,299
                                                           =========       =========       =========       =========
</Table>

     (1)  Transactions between segments consist of metal sales recorded based on
          sales contracts that are negotiated between segments on terms that
          management feels are similar to those that would be negotiated between
          unrelated parties.

     (2)  Other revenues consist of metal sales not attributed to operating
          segments and gains (losses) on hedging transactions.

                                       8
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


<Table>
<Caption>
                                                                    THREE MONTHS ENDED            NINE MONTHS ENDED
     OPERATING SEGMENTS - EBITDA (EARNINGS BEFORE INTEREST,              JULY 31,                     JULY 31,
       TAXES, AND DEPLETION, DEPRECIATION                        -----------------------       -----------------------
       AND AMORTIZATION), EXCLUDING THE EFFECTS OF FAS 133         2001           2000           2001           2000
                                                                 --------       --------       --------       --------
<S>                                                              <C>            <C>            <C>            <C>
     Peruvian operations                                         $ 12,598       $ 10,767       $ 30,214       $ 33,352
     Primary lead                                                   4,027          1,026          3,913          6,732
     Secondary lead                                                 4,398          3,418         12,436         11,002
     Fabricated products                                              794            581          1,661          1,933
                                                                 --------       --------       --------       --------
              Total reportable segments                            21,817         15,792         48,224         53,019
     Other revenues and expenses (3)                                 (153)        (1,891)           737         (2,051)
     Corporate selling, general and administrative expenses        (3,258)        (3,078)       (11,254)       (12,086)
     Intersegment eliminations                                        (11)            19            (10)             2
                                                                 --------       --------       --------       --------
              Consolidated EBITDA                                  18,395         10,842         37,697         38,884
     Depreciation, depletion and amortization                      (7,479)        (7,399)       (22,513)       (22,263)
     Interest income                                                3,956          3,613         11,290         10,832
     Interest expense                                             (14,972)       (15,601)       (45,897)       (46,026)
     Unrealized gain on derivative financial instruments            1,477             --          1,843             --
                                                                 --------       --------       --------       --------
              Income (loss) before income taxes                  $  1,377       $ (8,545)      $(17,580)      $(18,573)
                                                                 ========       ========       ========       ========
</Table>

     (3)  Other revenues and expenses include primarily exploration expenses,
          gains and losses recognized on closed hedge transactions, and
          adjustments necessary to state inventories at LIFO cost.

(6)  HEDGING AND DERIVATIVE FINANCIAL INSTRUMENTS

     A significant portion of the Company's sales contracts are priced based on
     an average London Metal Exchange (LME) or other exchange prices for the
     respective metal plus a negotiated premium. As such, the prices of the
     Company's products fluctuate due to factors in the market that are beyond
     the Company's control. These price changes expose the Company to
     variability in its cash receipts. The purpose of the Company's price risk
     management program is to limit the Company's risk to acceptable levels,
     while enhancing revenue through the receipt of option premiums.

     The Company's price risk management program uses various derivative
     instruments in its attempt to mitigate commodity price risks. The Company
     uses purchased futures contracts as a fair value hedge of the change in
     fair value of inventory related to firm sales commitments with customers or
     as a cash flow hedge to lock in the price of lead purchases for its
     fabricated products subsidiary. In fair value hedges, the futures contracts
     are established at terms (quantities, prices and timing) that mirror those
     of the firm commitments. The Company uses sold futures contracts as a cash
     flow hedge to lock in the price of a portion of forecasted lead metal sales
     and to lock in the price of by-product sales whose prices are based on an
     average for a period after they are shipped.

     The Company routinely writes call options that, if exercised, will create
     sold futures contracts that will be designated as cash flow hedges of
     forecasted lead metal sales. The options generate premium income, which
     enhance revenues. The Company also uses futures contracts and options and
     combinations thereof to enhance revenue at contract prices that are
     acceptable to the Company, should the options be exercised. Because these
     instruments do not meet the requirements for hedge accounting under FAS
     133, the changes in fair market value related to these instruments
     (including the time value portion), which reflect market prices and
     volatility at the balance sheet date, are recorded in results of
     operations, and are expected to increase the volatility of reported
     results.

     The unrealized gain reflected in the consolidated statement of operations
     relates to the change in fair market value of derivative financial
     instruments that are not designated as hedges. For derivative instruments
     designated as

                                       9
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


     hedges (futures contracts), the Company assesses effectiveness based on
     changes in the forward rate, and as a result, does not expect hedge
     ineffectiveness.

     The fair market value of the Company's derivative financial instruments
     reflected in the Company's balance sheet as of July 31, 2001 is the
     difference between quoted prices at the balance sheet date and the contract
     settlement value. The fair market value represents the estimated net cash
     the Company would receive (pay) if the contracts were canceled on the
     balance sheet date.

     The Company's open derivative financial instruments at July 31, 2001 were:

          SOLD (PURCHASED) FUTURES CONTRACTS (NUMBERS NOT IN THOUSANDS)

<Table>
<Caption>
                                                                                       FAIR MARKET
            METAL                 QUANTITY                 PRICE RANGE                   VALUE                    PERIOD
     -------------------      -----------------          -----------------            -------------        ----------------------
<S>                           <C>                        <C>                          <C>                  <C>
     Lead (Hedges)                (32,480) tons              $431.84/ton              $    496,854         Aug.01 to Aug. 02
                                      965  tons              $476.04/ton                    30,188         Sep. 01 to Oct. 01
     Lead (Other)                 (12,743) tons              $421.63/ton                   330,476         Aug. 01 to Jan. 02
     Copper (Other)                   500  tons             $1,756.00/ton                  215,050         Sep. 01
                                     (551) tons             $1,757.71/ton                 (226,910)        Aug. 01
     Zinc (Hedges)                 (1,653) tons            $1,113.50/ton.                 (379,443)        Aug. 01 to Dec.01
     Zinc (Other)                    (690) tons             $1,173.00/ton                 (282,791)        Aug. 01 to Oct. 01
     Silver                       877,712   oz.              $5.770/oz.                  1,241,520         Aug. 01
                               (1,069,712)  oz.              $5.892/oz.                 (1,632,053)        Aug. 01
</Table>

          SOLD (PURCHASED) CALL OPTION CONTRACTS (NUMBERS NOT IN THOUSANDS)

<Table>
<Caption>
                                                                                       FAIR MARKET
            METAL                 QUANTITY                  PRICE RANGE                   VALUE                    PERIOD
     -------------------      -----------------          -----------------            -------------       ----------------------
<S>                           <C>                  <C>                               <C>                  <C>
     Copper                        13,007  tons    $1,542.21/ton to $1,737.26/ton    $   (111,803)        Aug. 01 to Jun. 02
     Lead                         119,325  tons       $421.84/ton to 480.80/ton        (1,501,449)        Aug. 01 to Mar. 02
                                   (6,117) tons       $459.94/ton to 469.92/ton            84,755         Aug. 01 to Feb. 02
     Zinc                           6,614  tons      $884.51/ton to $997.91/ton            (5,352)        Sep. 01 to Apr. 02
     Silver                      378,514    oz.        $4.19/oz. to $4.37/oz.              (2,617)        Aug. 01 to Oct. 01
     Gold                          8,997    oz.       $236.98/oz. to $255.21oz.           (45,956)        Aug. 01
</Table>

          SOLD (PURCHASED) PUT OPTION CONTRACTS (NUMBERS NOT IN THOUSANDS)

<Table>
<Caption>
                                                                                     FAIR MARKET
            METAL                 QUANTITY                 PRICE RANGE                  VALUE                    PERIOD
     -------------------      -----------------          -----------------            -------------       ----------------------
<S>                           <C>                  <C>                               <C>                  <C>
     Copper                         4,244  tons    $1,542.21/ton to $1,587.57/ton    $   (739,791)        Nov. 01 to Jun. 02
     Lead                          47,262  tons      $408.23/ton to $444.52/ton          (514,858)        Aug. 01 to Jan. 02
                                     (171) tons      $435.45/ton to $439.98/ton            33,333         Aug. 01 to Dec. 01
     Zinc                           4,271  tons      $816.46/ton to $987.92/ton          (665,968)        Aug. 01 to Dec. 01
     Silver                      241,671    oz.               $4.19/oz                    (82,075)        Aug. 01
     Gold                          6,802    oz.      $236.98/oz. to $255.21/oz.           (16,182)        Aug. 01 to Oct. 01
</Table>

     At July 31, 2001, the Company had recorded an asset of $2,581 and a
     liability of $6,422 related to the fair market values of these instruments.
     The Company also had recorded a liability of $96 for the fair value of firm
     commitments designated as the hedged item in fair value hedges. To affect
     these balances, the Company recorded the transition adjustment discussed in
     Note 2, a gain of $1,843, and other comprehensive income of $71, net of the

                                       10
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)

     effect of balances of deferred option premiums and options at fair market
     value previously recorded on the balance sheet. The balance of $141 in
     comprehensive income will be recognized in earnings as the forecasted
     sales/purchases occur through December 2001.

(7)  ENVIRONMENTAL AND LITIGATION MATTERS

     ENVIRONMENTAL

     The Company has recorded a liability of approximately $29,200 as of July
     31, 2001, which represents management's best estimate of known obligations
     relating to the environmental and reclamation matters that are discussed
     below.

          DOMESTIC OPERATIONS

     The Company is subject to numerous federal, state and local environmental
     laws and regulations governing, among other things, air emissions, waste
     water discharge, solid and hazardous waste treatment, and storage, disposal
     and remediation of releases of hazardous materials. In common with much of
     the mining industry, the Company's facilities are located on sites that
     have been used for heavy industrial purposes for decades and may require
     remediation. The Company has made and intends to continue making the
     necessary expenditures for environmental remediation and compliance with
     environmental laws and regulations. Environmental laws and regulations may
     become more stringent in the future which could increase costs of
     compliance.

     Primary smelter slag produced by and stored at the primary smelter in
     Herculaneum, Missouri is currently exempt from hazardous waste regulation
     under the Resource Conservation and Recovery Act of 1976, as amended
     (RCRA), but is subject to a state closure permit. The Company has accrued
     approximately $1,000 related to the cost of closure pursuant to this
     permit, which is management's best estimate of closure costs under the
     current requirements of the permit.

     The Company signed a voluntary Administrative Order on Consent (AOC) in
     September 2000 to study and address issues related to the slag pile, plant
     property, community soils adjacent to the primary smelter in Herculaneum,
     elevated blood lead levels in the community and lead releases from the
     plant. At this time, it is not possible to determine the outcome of the
     study or what potential remediation actions, if any, may be required after
     the study is completed. In addition, the Company has agreed to replace the
     soil in yards of private residences within a half-mile of the smelter. The
     estimated cost of this cleanup is approximately $800, most of which will be
     spent in fiscal 2002. The Company has also agreed to test soils in an area
     outside the half-mile zone to determine if additional remediation is
     required. The U.S. EPA and the Missouri DNR signed the AOC with an
     effective date of May 29, 2001. Estimated costs may change if required
     levels of remediation are different than currently estimated or if
     additional homes are identified as a result of soil testing.

     The Company, working with the Missouri DNR and the Missouri Air
     Conservation Commission, has developed a plan to bring the Herculaneum
     smelter in compliance with the ambient air quality standard for lead
     promulgated under the federal Clean Air Act. The plan was included in a
     consent judgement entered into by the Company in December 2000, and has
     been approved at the state level and by the U.S. EPA. Capital expenditures
     for this plan are expected to total approximately $5,000 in fiscal 2001,
     with approximately $3,700 spent in the nine months ended July 31, 2001, and
     $4,500 in fiscal 2002, when the plan will be completed.

     The Company has received notice that it is a potentially responsible party
     (PRP) subject to liability under The Comprehensive Environmental Response,
     Compensation and Liability Act of 1980, as amended (CERCLA) at the
     following sites: six sites in St. Francois County, Missouri, including the
     Big River Mine Tailings site, the Bonne Terre site, the Federal site, the
     National site, the Rivermines site and the Leadwood site; the
     Oronogo-Durenweg site in Jasper County, Missouri; the Cherokee County site
     in Cherokee County, Kansas; the Tar Creek site in Ottawa County, Oklahoma;
     the Block "P" site in Cascade County, Montana; and the Missouri Electric
     Works site in Cape Girardeau, Missouri. There are two additional sites in
     St. Francois County for which the EPA has indicated it will issue notice.
     These sites involve historical operations of predecessors of the Company.
     CERCLA

                                       11
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


     provides for strict and, in certain circumstances, joint and several
     liability for response costs and natural resource damages. The Company has
     a reserve as of July 31, 2001 of approximately $8,700 for these sites,
     including the two additional sites in St. Francois County, which the
     Company believes is adequate based on its investigations to date. However,
     depending upon the types of remediation required and certain other factors,
     costs at these sites, individually or collectively, could have a material
     adverse effect on the results of operations, financial condition and
     liquidity of the Company.

     The Company has completed an Engineering Evaluation/Cost Analysis (EE/CA)
     for the Bonne Terre site, and has signed an AOC to conduct a removal action
     on a portion of the site. Plans are being finalized, and work will begin
     full-scale at the end of September and is scheduled for completion within
     two years.

     The Company signed a voluntary AOC in 1994 with the EPA to remediate the
     Big River Mine Tailings site. The remediation work required by the AOC has
     been substantially completed, and will be followed by revegetation and
     ongoing monitoring and maintenance activities.

     The Company has also signed AOC's to perform an EE/CA on each of the
     National, Rivermines, and Leadwood sites for remediation of the mine waste
     areas at these sites. The EE/CA are scheduled for completion by the end of
     fiscal 2002. In addition, the Company has signed an AOC with the EPA to
     conduct a Remedial Investigation/Feasibility Study (RI/FS) to assess
     potential off-site impacts of site operations on and the need for
     remediation regarding groundwater, residential soils, several creeks and a
     river. The RI/FS is being conducted by a third party with completion
     currently expected within one year. The Company has signed an order to
     conduct interim measures until the RI/FS is complete, consisting of blood
     lead testing of young children, residential soil sampling, and limited soil
     remediation as indicated by the testing and sampling results. The Company
     believes the current reserves assigned to these sites are adequate.
     However, should remediation goals or areas change, requiring substantially
     increased measures, there can be no assurance that the reserves would be
     adequate.

     The Company has been advised by the EPA that it is considering taking
     certain response actions at a mine site in Madison County, Missouri known
     as the Mine LaMotte Site. A predecessor of the Company owned a 50% share of
     the operator of the site. The EPA has not decided whether any action will
     be taken, but the Company and the owner of the other 50% share have signed
     an AOC to conduct an RI/FS at the site. This site is substantially smaller
     than the sites in St. Francois County where the Company has been named a
     PRP, and the potential issues are less complex. The Company has also been
     advised that remediation is required at a related small satellite mine
     site. After conducting an investigation, the Company has determined that it
     was not involved in operations at the satellite site. At this time, based
     on this preliminary information and an inspection of the sites, management
     does not believe that any future action will result in a material adverse
     impact to the results of operations, financial condition or liquidity of
     the Company.

     The Company's Buick recycling facility is subject to corrective action
     requirements under RCRA as a result of a storage permit for certain wastes
     issued in 1989. This will involve remediation of solid waste management
     units at the site, although the plan for corrective action has not yet been
     finalized. The Company has reserves as of July 31, 2001 of approximately
     $1,500 for corrective action and $2,600 for closure costs for the permitted
     storage area. While management believes these reserves are adequate based
     on expectations of the closure plan requirements, regulators could require
     that additional measures be included in the finalized plan, which could
     change the estimate of the costs for corrective action.

     The Company's domestic operating facilities have wastewater discharge
     permits issued under the federal Clean Water Act, as amended. It is
     possible that stricter discharge limits than previously in effect may be
     included in certain permits now in renewal. If additional treatment
     facilities were required under these permits, capital expenditures of
     approximately $2,500 would be required. Management does not expect an
     appreciable increase in operating costs.

     The Company's mining and milling operations include six mine waste disposal
     facilities that are subject to Missouri mine closure permit requirements.
     Certain closure requirements have already been performed, and the

                                       12
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


     remaining estimated cost of future closure activities is approximately
     $7,600. The Company's mine and mill closure reserves were approximately
     $7,500 as of July 31, 2001.

          FOREIGN OPERATIONS

     Doe Run Peru submitted to and received approval from the Peruvian
     government for an Environmental Adjustment and Management Program (PAMA)
     that consisted of an environmental impact analysis, monitoring plan and
     data, mitigation measures and closure plan. The PAMA also sets forth the
     actions and corresponding annual investments the concession holder agrees
     to undertake in order to achieve compliance with the maximum applicable
     limits prior to expiration of the PAMA (ten years for smelters, such as Doe
     Run Peru's operations in La Oroya, and five years for any other type of
     mining or metallurgical operation like Cobriza). The required amount of
     annual investment must not be less than one percent of annual sales. Once
     approved, the PAMA functions as the equivalent of an operating permit with
     which the operator must comply. After expiration of the PAMA, the operator
     must comply with all applicable standards and requirements. Future changes
     in legal rules and maximum permissible levels would not be applicable to
     Doe Run Peru for the remaining period of the PAMA.

     Doe Run Peru has committed under its PAMA to implement the following
     projects at its La Oroya smelter through December 31, 2006:

     o    New sulfuric acid plants

     o    Treatment plant for the copper refinery effluent

     o    Industrial waste water treatment plant for the smelter and refinery

     o    Improve Huanchan lead and copper slag deposits

     o    Build an arsenic trioxide deposit

     o    Management and disposal of lead and copper slag wastes

     o    Domestic waste water treatment and domestic waste disposal

     Through July 31, 2001, the Company had spent approximately $23,000 on
     projects under the La Oroya PAMA.

     The Ministry of Mines approved in April 2001 an adjustment to the spending
     levels for the remaining years of the PAMA. Annual spending on a calendar
     year basis as approved in the La Oroya PAMA and its modifications is as
     follows:

<Table>
<Caption>
                                   Estimated
               Year                   Cost
               ----                ---------
<S>                                <C>
               2001                $   5,000
               2002                   15,829
               2003                   18,040
               2004                   36,365
               2005                   32,990
               2006                   41,640
                                   ---------
                                   $ 149,864
                                   =========
</Table>

     The current estimate for the total to be expended on environmental projects
     under the PAMA and on additional related process changes for Doe Run Peru
     is approximately $170,000 for the remaining term of the PAMA.

     Doe Run Peru's operations historically and currently exceed some of the
     applicable Ministry of Energy and Mines (MEM) maximum permissible limits
     pertaining to air emissions, ambient air quality and waste water effluent
     quality. The PAMA projects, which are more fully discussed below, have been
     designed to achieve compliance with such requirements prior to the
     expiration of the PAMA on January 13, 2007. No assurance can be given that

                                       13
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


     implementation of the PAMA projects is feasible or that their
     implementation will achieve compliance with the applicable legal
     requirements by the end of the PAMA period. Further, there can be no
     assurance that the Peruvian government will not in the future require
     compliance with additional or different environmental obligations that
     could adversely affect Doe Run Peru's business, financial condition or
     results of operations. Under the purchase agreement related to the
     acquisition of the La Oroya assets in October 1997, Empresa Minera del
     Centro del Peru S.A. (Centromin), the previous owner of the La Oroya
     assets, agreed to indemnify Doe Run Peru against environmental liability
     arising out of its prior operations, and performance of the indemnity has
     been guaranteed by the Peruvian government through the enactment of the
     Supreme Decree No. 042-97-PCM. However, there can be no assurance that
     Centromin will satisfy its environmental obligations and investment
     requirements, including those in its PAMA, or that the guarantee will be
     honored. Any failure by Centromin to satisfy its environmental obligations
     could adversely affect Doe Run Peru's business, financial condition or
     results of operations.

     The Cobriza mine has a separate PAMA in which the Company has committed to
     complete projects to manage tailings, sewage and garbage by mid-2002. The
     Company has spent approximately $8,700 under the PAMA as of July 31, 2001.
     After beginning construction on the largest of the projects, the tailings
     backfill project, revisions to the cost estimate increased substantially.
     As a result, the Company has requested a revision of its PAMA from the MEM,
     which would allow it to operate for a time after the end of the current
     PAMA without completing the backfill project. Future economic and operating
     conditions could affect the Company's ability to complete the backfill
     project. The Company is currently in compliance with its requirement to
     reduce emissions from the mine under the PAMA through a decrease in
     production. The Company has developed a new mine plan which it expects to
     present to MEM. At this time, it is not possible to determine whether the
     MEM will allow the Company to amend its PAMA. Mine plans and costs could
     change if the MEM does not allow the Company to amend its PAMA.

     The Company is responsible for the closure costs relating to a zinc ferrite
     disposal site. The Company has accrued $7,200 for the closure costs and,
     although a plan for closure of the site has not been finalized, management
     believes that this reserve is adequate.

          CONSOLIDATED

     The Company believes its reserves for domestic and foreign environmental
     and reclamation matters are adequate, based on the information currently
     available. Depending upon the type and extent of remediation activities
     required, costs in excess of established reserves are reasonably possible.
     Therefore, there can be no assurance that additional costs, both
     individually and in the aggregate, would not have a material adverse effect
     on the results of operations, financial condition and liquidity of the
     Company.

          LITIGATION

     The Company is a defendant in nine lawsuits alleging certain damages
     stemming from the operations at the Herculaneum smelter. Four of these
     cases are class action lawsuits. In two separate cases, the plaintiffs seek
     to have certified a class of property owners in a certain section of
     Herculaneum, alleging that property values have been damaged due to the
     operations of the smelter. In a third case, plaintiffs seek to have
     certified a class of children who lived in Herculaneum during a period of
     time when they were nine months to six years old and children born to
     mothers who lived in Herculaneum during their pregnancies. The remedy
     sought is medical monitoring for the class. In a fourth case, plaintiffs
     seek to have certified a class of employees of a certain contractor who
     worked at the Herculaneum smelter. The other five cases are personal injury
     actions by nineteen individuals who allege damages from the effects of lead
     poisoning due to operations at the smelter. Punitive damages also are being
     sought in each case. The Company is vigorously defending all of these
     claims.

     Because the cases are in discovery, the Company is unable at this time to
     state with certainty the expected outcome of and the final costs of any of
     these cases. Therefore, there can be no assurance that these cases would

                                       14
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


     not have a material adverse effect, both individually and in the aggregate,
     on the results of operations, financial condition and liquidity of the
     Company.

     Two lawsuits have been filed against the Company alleging certain damages
     from discontinued mine facilities in St. Francois County. In the first
     case, the plaintiffs seek to have certified two separate classes. The first
     class would consist of property owners, alleging that property values have
     been damaged due to the tailings from the discontinued operations. The
     second class would be composed of children, and the remedy sought is
     medical monitoring for the class. The second case, filed in July 2001,
     alleges personal injury against two children living in St. Francois County.
     The Company intends to vigorously defend itself against these claims. The
     Company is unable at this time to state with certainty the expected outcome
     of and the final costs of these suits. Therefore, there can be no assurance
     the suits will not have a material adverse effect on the results of
     operations, financial condition and liquidity of the Company.

     The Company, with several other defendants, has been named in six cases in
     Maryland. One case is seeking certification as a class the owners of all
     housing in the State of Maryland built prior to 1978 that have lead paint
     on the premises. The complaint alleges that all defendants were members of
     Lead Industries Association (LIA), a trade association, and that the
     defendants improperly promoted lead paint. The suit seeks damages for paint
     removal for all such housing in the State of Maryland. The other suits seek
     damages, alleging personal injuries as a result of lead poisoning from
     exposure to lead paint and tetraethyl lead dust. The suits seek punitive
     damages. Discovery has just begun, and the Company is unable at this time
     to state with certainty the expected outcome of and the final costs of any
     of these cases. Therefore, there can be no assurance that these cases would
     not have a material adverse effect on the results of operations, financial
     condition and liquidity of the Company.

     In February, 2000 the Company and several other parties were named
     defendants in a suit brought by the City of St. Louis, Missouri for costs
     allegedly incurred and to be incurred by the plaintiff for the care of
     lead-poisoned persons, education programs for children injured by exposure
     to lead and the abatement of lead hazards purportedly created by the
     defendants in the City of St. Louis. The complaint alleges that the
     defendants made material misrepresentations and intentional omissions of
     material facts to the City and/or its residents regarding the nature of
     lead and lead products, such as paint. The suit also seeks punitive
     damages. Discovery is in initial stages and the Company is unable at this
     time to state with certainty the expected outcome of and the final costs of
     any of these cases. Therefore, there can be no assurance that these cases
     would not have a material adverse effect on the results of operations,
     financial condition and liquidity of the Company.

     On November 1, 2000, one hundred and seven individual cases were filed that
     list the Company among other defendants, alleging that the employees or
     ex-employees of Burlington Northern Railroad who filed the cases were
     exposed to lead from the hauling of lead concentrates by the railroad.
     These cases were recently filed, and the Company is unable at this time to
     state with certainty the expected outcome of and the final costs of any of
     these cases. Therefore, there can be no assurance that these cases would
     not have a material adverse effect on the results of operations, financial
     condition and liquidity of the Company.

                                       15
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES

     The Guarantor Subsidiaries (Fabricated Products, Inc. (FPI) and DR Land
     Holdings, LLC (the Domestic Guarantors) Doe Run Cayman Ltd. (Doe Run
     Cayman) and its subsidiary Doe Run Peru have jointly and severally, fully,
     unconditionally and irrevocably guaranteed the Unsecured Notes and Secured
     Notes of the Company. Doe Run Cayman has no operations separate from those
     of Doe Run Peru. Separate financial statements and other disclosures
     concerning certain Guarantor Subsidiaries and disclosures concerning
     non-Guarantor Subsidiaries have not been presented because management has
     determined that such information is not material to investors. Intercompany
     transactions eliminated in consolidation consist of various service and
     agency fees between The Doe Run Resources Corporation and Doe Run Peru and
     sales of metal to The Doe Run Resources Corporation by Doe Run Peru and to
     FPI by The Doe Run Resources Corporation.

     Doe Run Peru was merged with its parent, Doe Run Mining S.R.L. effective
     June 1, 2001. The following consolidating statements reflect the historical
     cost basis of assets and liabilities and the results of operations of
     assuming the merger had occurred on October 23, 1997, the date at which
     common control was established. The consolidating statements have been
     restated accordingly.

                                       16
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONDENSED CONSOLIDATING BALANCE SHEET
                         AS OF JULY 31, 2001 (UNAUDITED)

<Table>
<Caption>
                                                  The Company
                                                   Excluding                        Doe Run
                                                   Guarantor         Domestic      Cayman and                         The
                                                  Subsidiaries      Guarantors     Subsidiary     Eliminations      Company
                                                  ------------      ----------     ----------     ------------     ---------
<S>                                               <C>               <C>            <C>            <C>              <C>
                                     ASSETS

Current assets:
  Cash                                              $      --       $      --       $   9,240       $      --       $   9,240
  Trade accounts receivable, net of
    allowance for doubtful accounts                    40,475           5,531          27,862            (326)         73,542
  Inventories                                          55,855           1,964          59,785             (24)        117,580
  Prepaid expenses and other current assets            12,958             230           8,041              --          21,229
  Net deferred tax assets                                  --              --           4,431              --           4,431
  Due from subsidiaries                                21,004              --              --         (21,004)             --
                                                    ---------       ---------       ---------       ---------       ---------
    Total current assets                              130,292           7,725         109,359         (21,354)        226,022
Property, plant and equipment, net                    122,206           5,521         139,510              --         267,237
Special term deposit                                  125,000              --              --              --         125,000
Net deferred tax assets                                    --              --           5,304              --           5,304
Other noncurrent assets, net                            7,011             136           3,006              --          10,153
Investment in subsidiaries                             30,608              --              --         (30,608)             --
                                                    ---------       ---------       ---------       ---------       ---------
    Total assets                                    $ 415,117       $  13,382       $ 257,179       $ (51,962)      $ 633,716
                                                    =========       =========       =========       =========       =========

                 LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)

Current liabilities:
  Short-term borrowings and current
    maturities of long-term debt                    $      26       $      --       $   5,683       $      --       $   5,709
  Accounts payable                                     13,649           2,309          24,488            (326)         40,120
  Accrued liabilities                                  40,649             468          23,943              --          65,060
  Due to parent                                            --           8,961          12,043         (21,004)             --
                                                    ---------       ---------       ---------       ---------       ---------
    Total current liabilities                          54,324          11,738          66,157         (21,330)        110,889
Long-term debt, less current maturities               343,626              --         152,995              --         496,621
Other noncurrent liabilities                           43,944           1,663           7,376              --          52,983
                                                    ---------       ---------       ---------       ---------       ---------
    Total liabilities                                 441,894          13,401         226,528         (21,330)        660,493
Shareholders' equity (deficit):
  Common stock, $.10 par value, 1,000 shares
    authorized, issued, and outstanding                     0              --              --              --               0
  Common stock, $1 par value, 1,000 shares
    authorized, issued, and outstanding                    --               1              --              (1)             --
  Common stock, $1 par value, 2,005,000 shares
    authorized, issued and outstanding                     --              --           2,005          (2,005)             --
  Additional paid in capital                            5,238           1,205              --          (1,205)          5,238
  Retained earnings (accumulated deficit) and
    accumulated other comprehensive loss              (32,015)         (1,225)         28,646         (27,421)        (32,015)
                                                    ---------       ---------       ---------       ---------       ---------
    Total shareholders' equity (deficit)              (26,777)            (19)         30,651         (30,632)        (26,777)
                                                    ---------       ---------       ---------       ---------       ---------
    Total liabilities and shareholders'
      equity (deficit)                              $ 415,117       $  13,382       $ 257,179       $ (51,962)      $ 633,716
                                                    =========       =========       =========       =========       =========
</Table>

                                       17
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONDENSED CONSOLIDATING BALANCE SHEET
                             AS OF OCTOBER 31, 2000

<Table>
<Caption>
                                                  The Company
                                                   Excluding                        Doe Run
                                                   Guarantor         Domestic      Cayman and                         The
                                                  Subsidiaries      Guarantors     Subsidiary     Eliminations      Company
                                                  ------------      ----------     ----------     ------------     ---------
<S>                                               <C>               <C>            <C>            <C>              <C>
                                     ASSETS

Current assets:
  Cash                                              $      --       $      --       $   8,295      $      --       $   8,295
  Trade accounts receivable, net of
    allowance for doubtful accounts                    48,745           3,197          25,425           (349)         77,018
  Inventories                                          49,388           1,988          67,364            (14)        118,726
  Prepaid expenses and other current assets             7,510             202          33,243           (705)         40,250
  Net deferred tax assets                                  --              --           2,592             --           2,592
  Due from subsidiaries                                18,882              --              --        (18,882)             --
                                                    ---------       ---------       ---------      ---------       ---------
    Total current assets                              124,525           5,387         136,919        (19,950)        246,881
Property, plant and equipment, net                    130,822           6,657         138,035             --         275,514
Special term deposit                                  125,000              --              --             --         125,000
Net deferred tax assets                                    --              --           4,598             --           4,598
Other noncurrent assets, net                           10,258             205           2,489             --          12,952
Investment in subsidiaries                             27,209              --              --        (27,209)             --
                                                    ---------       ---------       ---------      ---------       ---------
    Total assets                                    $ 417,814       $  12,249       $ 282,041      $ (47,159)      $ 664,945
                                                    =========       =========       =========      =========       =========

                 LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)

Current liabilities:
  Short-term borrowings and current
    maturities of long-term debt                    $     396       $      --       $  14,428      $      --       $  14,824
  Accounts payable                                     19,043           2,011          32,719           (349)         53,424
  Accrued liabilities                                  29,186             357          21,951           (705)         50,789
  Due to parent                                            --           7,965          10,917        (18,882)             --
                                                    ---------       ---------       ---------      ---------       ---------
    Total current liabilities                          48,625          10,333          80,015        (19,936)        119,037
Long-term debt, less current maturities               331,183              --         167,503             --         498,686
Other noncurrent liabilities                           44,920           1,840           7,376             --          54,136
                                                    ---------       ---------       ---------      ---------       ---------
    Total liabilities                                 424,728          12,173         254,894        (19,936)        671,859
Shareholders' equity (deficit):
  Common stock, $.10 par value, 1,000 shares
    authorized, issued, and outstanding                     0              --              --             --               0
  Common stock, $1 par value, 1,000 shares
    authorized, issued, and outstanding                    --               1              --             (1)             --
  Common stock, $1 par value, 2,005,000 shares
    authorized, issued and outstanding                     --              --           2,005         (2,005)             --
  Additional paid in capital                            5,238           1,205              --         (1,205)          5,238
  Retained earnings (accumulated deficit) and
    accumulated other comprehensive loss              (12,152)         (1,130)         25,142        (24,012)        (12,152)
                                                    ---------       ---------       ---------      ---------       ---------
    Total shareholders' equity (deficit)               (6,914)             76          27,147        (27,223)         (6,914)
                                                    ---------       ---------       ---------      ---------       ---------
    Total liabilities and shareholders'
      equity (deficit)                              $ 417,814       $  12,249       $ 282,041      $ (47,159)      $ 664,945
                                                    =========       =========       =========      =========       =========
</Table>


                                       18
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONSOLIDATING STATEMENT OF OPERATIONS
                  THREE MONTHS ENDED JULY 31, 2001 (UNAUDITED)

<Table>
<Caption>
                                              The Company
                                               Excluding                        Doe Run
                                               Guarantor         Domestic      Cayman and                          The
                                              Subsidiaries      Guarantors     Subsidiary     Eliminations       Company
                                              ------------      ----------     ----------     ------------      ---------
<S>                                           <C>               <C>            <C>            <C>               <C>
Net sales                                       $  66,437       $   6,760       $ 109,583       $  (3,561)      $ 179,219

Costs and expenses:
  Cost of sales                                    55,722           5,601          93,860          (1,225)        153,958
  Depletion, depreciation and amortization          4,610             395           2,474              --           7,479
  Selling, general and administrative               3,258             359           4,949          (2,325)          6,241
  Exploration                                         387              --              --              --             387
  Unrealized (gain)/loss on derivatives            (1,913)            (39)            475              --          (1,477)
                                                ---------       ---------       ---------       ---------       ---------
    Total costs and expenses                       62,064           6,316         101,758          (3,550)        166,588
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) from operations                   4,373             444           7,825             (11)         12,631

Other income (expense):
  Interest expense                                (10,391)           (213)         (4,580)            212         (14,972)
  Interest income                                   3,735              --             433            (212)          3,956
  Other, net                                          270              (7)           (501)             --            (238)
  Equity in earnings of subsidiaries                4,981              --              --          (4,981)             --
                                                ---------       ---------       ---------       ---------       ---------
                                                   (1,405)           (220)         (4,648)         (4,981)        (11,254)
                                                ---------       ---------       ---------       ---------       ---------
    Income before income tax
      expense (benefit)                             2,968             224           3,177          (4,992)          1,377
  Income tax expense (benefit)                          9              --          (1,591)             --          (1,582)
                                                ---------       ---------       ---------       ---------       ---------
  Income (loss) before extraordinary item           2,959             224           4,768          (4,992)          2,959
    Extraordinary item related to
      retirement of long term debt                   (159)             --              --              --            (159)
                                                ---------       ---------       ---------       ---------       ---------
    Net income (loss)                           $   2,800       $     224       $   4,768       $  (4,992)      $   2,800
                                                =========       =========       =========       =========       =========
</Table>

                                       19
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONSOLIDATING STATEMENT OF OPERATIONS
                  THREE MONTHS ENDED JULY 31, 2000 (UNAUDITED)

<Table>
<Caption>
                                              The Company
                                               Excluding                        Doe Run
                                               Guarantor         Domestic      Cayman and                          The
                                              Subsidiaries      Guarantors     Subsidiary     Eliminations       Company
                                              ------------      ----------     ----------     ------------      ---------
<S>                                           <C>               <C>            <C>            <C>               <C>
Net sales                                       $  75,187       $   6,408       $ 118,713       $  (5,520)      $ 194,788

Costs and expenses:
  Cost of sales                                    66,701           5,464         104,683            (885)        175,963
  Depletion, depreciation and amortization          4,762             387           2,250              --           7,399
  Selling, general and administrative               3,078             355           8,464          (4,654)          7,243
  Exploration                                         783              --             906              --           1,689
                                                ---------       ---------       ---------       ---------       ---------
    Total costs and expenses                       75,324           6,206         116,303          (5,539)        192,294
                                                ---------       ---------       ---------       ---------       ---------
    Income from operations                           (137)            202           2,410              19           2,494

Other income (expense):
  Interest expense                                (10,564)           (257)         (5,033)            253         (15,601)
  Interest income                                   3,776              --              90            (253)          3,613
  Other, net                                          409              (7)            547              --             949
  Equity in earnings of subsidiaries               (1,639)             --              --           1,639              --
                                                ---------       ---------       ---------       ---------       ---------
                                                   (8,018)           (264)         (4,396)          1,639         (11,039)
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) before income tax
      expense  (benefit)                           (8,155)            (62)         (1,986)          1,658          (8,545)
  Income tax expense (benefit)                        217              --            (390)             --            (173)
                                                ---------       ---------       ---------       ---------       ---------
    Net income (loss)                           $  (8,372)      $     (62)      $  (1,596)      $   1,658       $  (8,372)
                                                =========       =========       =========       =========       =========

</Table>


                                       20
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONSOLIDATING STATEMENT OF OPERATIONS
                   NINE MONTHS ENDED JULY 31, 2001 (UNAUDITED)

<Table>
<Caption>
                                              The Company
                                               Excluding                        Doe Run
                                               Guarantor         Domestic      Cayman and                          The
                                              Subsidiaries      Guarantors     Subsidiary     Eliminations       Company
                                              ------------      ----------     ----------     ------------      ---------
<S>                                           <C>               <C>            <C>            <C>               <C>
Net sales                                       $ 216,198       $  17,981       $ 334,095       $ (10,230)      $ 558,044

Costs and expenses:
  Cost of sales                                   191,519          15,165         294,330          (3,078)        497,936
  Depletion, depreciation and amortization         14,099           1,186           7,228              --          22,513
  Selling, general and administrative              11,254           1,138          16,059          (7,142)         21,309
  Exploration                                       1,215              --              --              --           1,215
  Unrealized (gain)/loss on derivatives            (1,212)            (45)           (586)             --          (1,843)
                                                ---------       ---------       ---------       ---------       ---------
    Total costs and expenses                      216,875          17,444         317,031         (10,220)        541,130
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) from operations                    (677)            537          17,064             (10)         16,914

Other income (expense):
  Interest expense                                (31,916)           (636)        (13,977)            632         (45,897)
  Interest income                                  11,314              --             608            (632)         11,290
  Other, net                                          765             (18)           (634)             --             113
  Equity in earnings of subsidiaries                3,377              --              --          (3,377)             --
                                                ---------       ---------       ---------       ---------       ---------
                                                  (16,460)           (654)        (14,003)         (3,377)        (34,494)
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) before income tax
      expense (benefit)                           (17,137)           (117)          3,061          (3,387)        (17,580)
  Income tax expense (benefit)                         59              --          (1,568)             --          (1,509)
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) before extraordinary
      item and cumulative effect of
      change in accounting principle              (17,196)           (117)          4,629          (3,387)        (16,071)
    Extraordinary item related to
      retirement of long term debt                   (159)             --              --              --            (159)
    Cumulative effect of change in
      accounting principle, net of
      income tax benefit                           (2,649)             --          (1,125)             --          (3,774)
                                                ---------       ---------       ---------       ---------       ---------
    Net income (loss)                           $ (20,004)      $    (117)      $   3,504       $  (3,387)      $ (20,004)
                                                =========       =========       =========       =========       =========
</Table>

                                       21
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                      CONSOLIDATING STATEMENT OF OPERATIONS
                   NINE MONTHS ENDED JULY 31, 2000 (UNAUDITED)

<Table>
<Caption>
                                              The Company
                                               Excluding                        Doe Run
                                               Guarantor         Domestic      Cayman and                          The
                                              Subsidiaries      Guarantors     Subsidiary     Eliminations       Company
                                              ------------      ----------     ----------     ------------      ---------
<S>                                           <C>               <C>            <C>            <C>               <C>
Net sales                                       $ 232,129       $  20,597       $ 362,574       $ (18,001)      $ 597,299

Costs and expenses:
  Cost of sales                                   200,183          17,656         318,514          (3,912)        532,441
  Depletion, depreciation and amortization         14,442           1,169           6,652              --          22,263
  Selling, general and administrative              12,086             988          24,826         (14,091)         23,809
  Exploration                                       2,324              --             906              --           3,230
                                                ---------       ---------       ---------       ---------       ---------
    Total costs and expenses                      229,035          19,813         350,898         (18,003)        581,743
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss)  from operations                  3,094             784          11,676               2          15,556

Other income (expense):
  Interest expense                                (31,113)           (780)        (14,902)            769         (46,026)
  Interest income                                  11,353              --             248            (769)         10,832
  Other, net                                        1,057             (19)             27              --           1,065
  Equity in earnings of subsidiaries               (3,792)             --              --           3,792              --
                                                ---------       ---------       ---------       ---------       ---------
                                                  (22,495)           (799)        (14,627)          3,792         (34,129)
                                                ---------       ---------       ---------       ---------       ---------
    Income (loss) before income tax
      expense (benefit)                           (19,401)            (15)         (2,951)          3,794         (18,573)
  Income tax expense (benefit)                        652              --             828              --           1,480
                                                ---------       ---------       ---------       ---------       ---------
    Net income (loss)                           $ (20,053)      $     (15)      $  (3,779)      $   3,794       $ (20,053)
                                                =========       =========       =========       =========       =========
</Table>


                                       22
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
                   NINE MONTHS ENDED JULY 31, 2001 (UNAUDITED)

<Table>
<Caption>
                                                The Company
                                                 Excluding                        Doe Run
                                                 Guarantor       Domestic      Cayman and                       The
                                                Subsidiaries    Guarantors     Subsidiary     Eliminations    Company
                                                ------------    ----------     ----------     ------------    ---------
<S>                                             <C>             <C>            <C>            <C>             <C>
Net cash provided by (used in)
  operating activities                            $    (81)      $   (996)      $ 32,041       $ (3,377)      $ 27,587
Cash flows from investing activities:
  Purchases of property, plant and equipment       (10,265)            --         (8,121)            --        (18,386)
  Net proceeds from sales of assets                  4,912             --             --             --          4,912
  Investment in subsidiaries                        (3,377)            --             --          3,377             --
                                                  --------       --------       --------       --------       --------
    Net cash provided by (used in)
      investing activities                          (8,730)            --         (8,121)         3,377        (13,474)
Cash flows from financing activities:
  Proceeds from (payments on) revolving
    loans and short-term borrowings, net            16,532             --        (21,315)            --         (4,783)
  Payments on long-term debt                        (5,224)            --         (2,786)            --         (8,010)
  Payment of deferred financing costs                 (375)            --             --             --           (375)
  Due to/due from parent/subsdiaries                (2,122)           996          1,126             --             --
                                                  --------       --------       --------       --------       --------
    Net cash provided by (used in)
      financing activities                           8,811            996        (22,975)            --        (13,168)
                                                  --------       --------       --------       --------       --------
    Net increase in cash                                --             --            945             --            945

Cash at beginning of period                             --             --          8,295             --          8,295
                                                  --------       --------       --------       --------       --------
Cash at end of period                             $     --       $     --       $  9,240       $     --       $  9,240
                                                  ========       ========       ========       ========       ========
</Table>

                                       23
<Page>

                        THE DOE RUN RESOURCES CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(8)  GUARANTOR SUBSIDIARIES (CONTINUED)

                 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
                   NINE MONTHS ENDED JULY 31, 2000 (UNAUDITED)

<Table>
<Caption>
                                                The Company
                                                 Excluding                        Doe Run
                                                 Guarantor       Domestic      Cayman and                       The
                                                Subsidiaries    Guarantors     Subsidiary     Eliminations    Company
                                                ------------    ----------     ----------     ------------    ---------
<S>                                             <C>             <C>            <C>            <C>             <C>
Net cash provided by (used in)
  operating activities                            $(13,436)      $   (336)      $  2,184       $  3,792       $ (7,796)
Cash flows from investing activities:
  Purchases of property, plant and equipment        (5,164)          (340)       (19,693)            --        (25,197)
  Investment in subsidiaries                         3,792             --             --         (3,792)            --
                                                  --------       --------       --------       --------       --------
    Net cash provided by
      investing activities                          (1,372)          (340)       (19,693)        (3,792)       (25,197)
Cash flows from financing activities:
  Proceeds from revolving loans
    and short-term borrowings, net                  15,584             --         17,279             --         32,863
  Payments on long-term debt                          (266)            --         (2,466)            --         (2,732)
  Due to/due from parent/subsdiaries                (7,229)         1,545          5,684             --             --
                                                  --------       --------       --------       --------       --------
    Net cash provided by
      financing activities                           8,089          1,545         20,497             --         30,131
                                                  --------       --------       --------       --------       --------
    Net increase (decrease) in cash                 (6,719)           869          2,988             --         (2,862)

Cash at beginning of period                          7,197         (1,347)         4,036             --          9,886
                                                  --------       --------       --------       --------       --------
Cash at end of period                             $    478       $   (478)      $  7,024       $     --       $  7,024
                                                  ========       ========       ========       ========       ========
</Table>

                                       24
<Page>

                               DOE RUN PERU S.R.L.
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<Table>
<Caption>



                                                                             JULY 31,        OCTOBER 31,
                                                                               2001             2000
                                                                            -----------      -----------
                                                                            (UNAUDITED)
<S>                                                                          <C>              <C>
                                     ASSETS

Current assets:
      Cash                                                                   $  9,240         $  8,295
      Trade accounts receivable, net of allowance for
           doubtful accounts                                                   27,862           25,425
      Inventories                                                              59,785           67,364
      Prepaid expenses and other current assets                                 8,041           33,243
      Net deferred tax assets                                                   4,431            2,592
                                                                             --------         --------
           Total current assets                                               109,359          136,919

Property, plant and equipment, net                                            139,510          138,035
Net deferred tax assets                                                         5,304            4,598
Other noncurrent assets, net                                                    3,006            2,489
                                                                             --------         --------
           Total assets                                                      $257,179         $282,041
                                                                             ========         ========

                      LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
      Short-term borrowings and current maturities of long-term debt         $  5,683         $ 14,428
      Accounts payable                                                         24,488           32,719
      Accrued liabilities                                                      23,943           21,951
      Due to parent                                                            12,043           10,917
                                                                             --------         --------
           Total current liabilities                                           66,157           80,015

Long-term debt, less current maturities                                       152,995          167,503
Other noncurrent liabilities                                                    7,376            7,376
                                                                             --------         --------
           Total liabilities                                                  226,528          254,894
Shareholders' equity:
      Common stock, $1 par value, 2,005,000 shares authorized,
           issued and outstanding                                               2,005            2,005
      Retained earnings                                                        28,646           25,142
                                                                             --------         --------
           Total shareholders' equity                                          30,651           27,147
                                                                             --------         --------
           Total liabilities and shareholders' equity                        $257,179         $282,041
                                                                             ========         ========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       25
<Page>

                               DOE RUN PERU S.R.L.
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
                             (DOLLARS IN THOUSANDS)

<Table>
<Caption>
                                                                            THREE MONTHS                    NINE MONTHS
                                                                           ENDED JULY 31,                  ENDED JULY 31,
                                                                     -------------------------       -------------------------
                                                                       2001            2000             2001           2000
                                                                     ---------       ---------       ---------       ---------
<S>                                                                  <C>             <C>             <C>             <C>
Net sales                                                            $ 109,583       $ 118,713       $ 334,095       $ 362,574

Costs and expenses:
     Cost of sales                                                      93,860         104,683         294,330         318,514
     Depreciation and amortization                                       2,474           2,250           7,228           6,652
     Selling, general and administrative                                 4,949           8,464          16,059          24,826
     Exploration                                                            --             906              --             906
     Unrealized loss (gain) on derivative financial instruments            475              --            (586)             --
                                                                     ---------       ---------       ---------       ---------
         Total costs and expenses                                      101,758         116,303         317,031         350,898
                                                                     ---------       ---------       ---------       ---------
         Income from operations                                          7,825           2,410          17,064          11,676

Other income (expense):
     Interest expense                                                   (4,580)         (5,033)        (13,977)        (14,902)
     Interest income                                                       433              90             608             248
     Other, net                                                           (501)            547            (634)             27
                                                                     ---------       ---------       ---------       ---------
                                                                        (4,648)         (4,396)        (14,003)        (14,627)
                                                                     ---------       ---------       ---------       ---------
         Income (loss) before income tax expense (benefit)               3,177          (1,986)          3,061          (2,951)

Income tax expense (benefit)                                            (1,591)           (390)         (1,568)            828
                                                                     ---------       ---------       ---------       ---------
         Income (loss) before cumulative effect
              of change in accounting principle                          4,768          (1,596)          4,629          (3,779)
         Cumulative effect of change in accounting
                principle, net of income tax benefit                        --              --          (1,125)             --
                                                                     ---------       ---------       ---------       ---------
         Net income (loss)                                           $   4,768       $  (1,596)      $   3,504       $  (3,779)
                                                                     =========       =========       =========       =========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       26
<Page>

                               DOE RUN PERU S.R.L.
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                             (DOLLARS IN THOUSANDS)

<Table>
<Caption>
                                                                               NINE MONTHS
                                                                             ENDED JULY 31,
                                                                        --------------------------
                                                                          2001              2000
                                                                        --------          --------
<S>                                                                     <C>               <C>
Net cash provided by  operating activities                              $ 32,041          $  2,184
Cash flows from investing activities:
      Purchases of property, plant and equipment                          (8,121)          (19,693)
                                                                        --------          --------
            Net cash used in investing activities                         (8,121)          (19,693)
Cash flows from financing activities:
      Proceeds from (payments on) revolving loans
         and short-term borrowings, net                                  (21,315)           17,279
      Payments on long-term debt                                          (2,786)           (2,466)
      Loans with parent                                                    1,126             5,684
                                                                        --------          --------
            Net cash provided by (used in) financing activities          (22,975)           20,497
                                                                        --------          --------
            Net increase in cash                                             945             2,988

Cash at beginning of period                                                8,295             4,036
                                                                        --------          --------
Cash at end of period                                                   $  9,240          $  7,024
                                                                        ========          ========
</Table>

              The accompanying notes are an integral part of these
                  condensed consolidated financial statements.

                                       27
<Page>

                               DOE RUN PERU S.R.L.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


(1)  BASIS OF PRESENTATION

          UNAUDITED INTERIM FINANCIAL STATEMENTS

     In the opinion of management, the interim condensed consolidated financial
     statements of Doe Run Peru S.R.L. (Doe Run Peru) contain all adjustments,
     consisting of normal recurring accruals, necessary to present fairly the
     consolidated financial position as of July 31, 2001 and results of
     operations for the three and nine month periods ended July 31, 2001 and
     2000. Interim periods are not necessarily indicative of results to be
     expected for the year.

          RECLASSIFICATIONS

     Certain prior year balances have been reclassified in order to conform to
     current presentation.

(2)  MERGER

     In May 2001, shareholders approved the merger of Doe Run Peru with its
     parent, Doe Run Mining S.R.L. effective June 1, 2001. The financial
     statements of the Company have been restated to reflect the historical cost
     basis of assets and liabilities and the results of operations of Doe Run
     Mining assuming the merger had occurred on October 23, 1997, the date at
     which common control was established. The effect of this restatement
     reduced Doe Run Peru's net income as previously reported by $2,389 and
     $9,661, respectively, for the three and nine month periods ended July 31,
     2000.

(3)  CHANGE IN ACCOUNTING PRINCIPLE

     Statement of Financial Accounting Standards No. 133, ACCOUNTING FOR
     DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES was issued by the Financial
     Accounting Standards Board in June 1998, and amended by Statement No. 138,
     ACCOUNTING FOR CERTAIN DERIVATIVE INSTRUMENTS AND CERTAIN HEDGING
     ACTIVITIES, AN AMENDMENT OF FASB STATEMENT NO. 133, issued in June 2000
     (collectively, FAS 133). Under FAS 133, entities are required to carry all
     derivative instruments in the statement of financial position at fair
     value. The accounting for changes in the fair value (i.e. gains and losses)
     of a derivative instrument depends on whether it has been designated and
     qualifies as part of a hedging relationship, and if so, whether the
     derivative instrument is designated as hedge of exposures to changes in
     fair values, cash flows or foreign currencies. If the hedged exposure is
     changes in fair values, the gain (loss) is recognized in earnings in the
     period of change, with an equal and offsetting (loss) gain recognized on
     the change in value of the hedged item. If the hedged exposure is changes
     in cash flows, the effective portion of the gain (loss) is reported as a
     component of other comprehensive income (outside earnings) until the
     forecasted hedged transaction affects earnings, when it is reclassified
     into earnings.

     The Company adopted FAS 133 beginning November 1, 2000, in the first
     quarter in which it was required by the standard, as amended. The adoption
     of FAS 133 resulted in a net transition loss of $1,125, net of income tax
     benefit of $480.

                                       28
<Page>

                               DOE RUN PERU S.R.L.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)

(4)  INVENTORIES

<Table>
<Caption>
                                                      JULY 31,      OCTOBER 31,
                                                        2001           2000
                                                    -----------     -----------
                                                    (UNAUDITED)
<S>                                                 <C>             <C>
     Refined metals and concentrates for sale         $ 2,022         $ 2,307
     Metals and concentrates in process                42,826          45,753
     Materials, supplies and spare parts               14,937          19,304
                                                      -------         -------
                                                      $59,785         $67,364
                                                      =======         =======
</Table>

     (4)  Materials, supplies and repair parts are stated net of reserves for
          obsolescence of approximately $680 and $250 at July 31, 2001 and
          October 31, 2000, respectively.

(5)  DEBT

     A capital lease for computer equipment caused property, plant and
     equipment, prepaid expenses and long term debt to increase by $647, $99 and
     $746, respectively, during the nine months ended July 31, 2001.

(6)  DERIVATIVE FINANCIAL INSTRUMENTS

     The Company uses derivative financial instruments primarily to enhance
     revenue by receiving premiums on option contracts. The Company sells
     futures contracts and options and combinations thereof that effectively
     establish contract prices for sales and purchases that are acceptable to
     the Company, should the options be exercised. The options generate premium
     income, which enhance revenues. Because these instruments do not meet the
     requirements for hedge accounting under FAS 133, the changes in fair market
     value related to these instruments (including the time value portion),
     which reflect market prices and volatility at the balance sheet date, are
     recorded in results of operations, and are expected to increase the
     volatility of reported results.

     The unrealized gain/(loss) reflected in the statement of operations.relates
     to the change in fair market value of derivative financial instruments that
     are not designated as hedges. For derivative instruments designated as
     hedges (futures contracts), the Company assesses effectiveness based on
     changes in the forward rate, and as a result, does not expect hedge
     ineffectiveness.

     The fair market value of the Company's derivative financial instruments
     reflected in the Company's balance sheet as of July 31, 2001 is the
     difference between quoted prices at the balance sheet date and the contract
     settlement value. The fair market value represents the estimated net cash
     the Company would receive (pay) if the contracts were canceled on the
     balance sheet date.

     The Company's open derivative financial instruments at July 31, 2001 were:

                                       29
<Page>

                               DOE RUN PERU S.R.L.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                             (DOLLARS IN THOUSANDS)


          SOLD (PURCHASED) FUTURES CONTRACTS (numbers not in thousands)

<Table>
<Caption>
                                                      WEIGHTED AVERAGE               FAIR MARKET
           METAL               QUANTITY                    PRICE                        VALUE                   PERIOD
     -----------------    ----------------     ------------------------------       -------------     ---------------------------
<S>                       <C>                  <C>                                  <C>               <C>
     Copper                      500  tons             $1,756.00/ton                $    215,050      Sep. 01
                                (551) tons             $1,757.71/ton                    (226,910)     Aug. 01
     Lead                      5,291  tons              $439.98/ton                      (31,776)     Sep. 01 to Jan. 02
                              (5,291) tons              $432.26/ton                       72,651      Sep. 01 to Jan. 02
     Silver                  887,712   oz.               $5.770/oz.                    1,241,520      Aug. 01
                          (1,069,712)  oz.               $5.892/oz.                   (1,632,053)     Aug. 01
</Table>

          SOLD CALL OPTION CONTRACTS (NUMBERS NOT IN THOUSANDS)

<Table>
<Caption>
                                                                                     FAIR MARKET
           METAL               QUANTITY                    PRICE RANGE                  VALUE                   PERIOD
     -----------------    ----------------     ------------------------------       -------------     ---------------------------
<S>                       <C>                  <C>                                  <C>               <C>
     Copper                    5,126  tons     $1,560.00/ton to $1,737.26/ton       $     (7,464)     Aug. 01 to Mar. 02
     Silver                  378,514   oz.         $4.19/oz. to $4.37/oz.                 (2,617)     Aug. 01 to Oct. 01
     Gold                      8,997   oz.       $236.98/oz. to $255.21oz.               (45,956)     Aug. 01
</Table>

          SOLD PUT OPTION CONTRACTS (NUMBERS NOT IN THOUSANDS)

<Table>
<Caption>
                                                                                     FAIR MARKET
           METAL               QUANTITY                    PRICE RANGE                   VALUE                   PERIOD
     -----------------    ----------------     ------------------------------       -------------     ---------------------------
<S>                       <C>                  <C>                                  <C>               <C>
     Copper                    1,213  tons     $1,542.21/ton to $1,560.00/ton       $   (203,258)      Nov. 01 to Mar. 02
     Lead                      6,614  tons              $440.00/ton                     (104,712)      Aug. 01 to Dec. 01
     Zinc                      3,307  tons       $816.47/ton to $987.92/ton             (521,452)      Aug. 01 to Oct. 01
     Silver                  241,671   oz.                $4.19/oz                       (82,075)      Aug. 01
     Gold                      6,802   oz.       $236.98/oz. to $255.21/oz.              (16,182)      Aug. 01 to Oct. 01
</Table>

     At July 31, 2001, the Company had recorded a liability of $1,345 related to
     the fair market values of these instruments. To affect this balance, the
     Company recorded the transition adjustment discussed in Note 2 and a gain
     of $586, net of the effect of balances of deferred option premiums and
     options at fair market value previously recorded on the balance sheet.

(6)  RELATED PARTY TRANSACTIONS

     Effective November 1, 2000, the Company terminated all previously existing
     agreements for services with Doe Run Mining S.R.L and The Doe Run Resources
     Corporation and replaced them with a Hedging Services Contract and an
     International Sales Agency Services Contract with The Doe Run Resources
     Corporation. Under the Hedging Services Contract, the Company will pay to
     The Doe Run Resources Corporation $42 per month for trading and hedging
     services. Under the International Sales Agency Services Contract, the
     Company will pay a commission of 2 1/4% of foreign sales to The Doe Run
     Resources Corporation. The Contracts cover an initial term of two years,
     and are annually renewable thereafter. Amounts expensed in the three and
     nine months ended July 31, 2001 were $2,325 and $7,142, respectively, under
     the new Hedging Services Contract and the International Sales Agency
     Services Contract. Amounts expensed under the previous agreements for the
     three and nine months ended July 31, 2000 totaled $4,654 and $14,091,
     respectively.

                                       30
<Page>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

     The following discussion and analysis includes both the U.S. operations and
the Peruvian operations of the Company and should be read in conjunction with
the consolidated financial statements of the Company and the notes thereto, and
other financial information included herein.

RESULTS OF OPERATIONS

     The Company reported net income of $2.8 million for the three months ended
July 31, 2001 (the 2001 quarter) compared to a net loss of $8.4 million for the
three months ended July 31, 2000 (the 2000 quarter). The Company's U.S.
operations reported a net loss of $4.3 million (excluding intercompany fees and
eliminations of $2.7 million) for the 2001 quarter compared to a net loss of
$11.4 million excluding intercompany fee revenue of $4.7 million) in the 2000
quarter, reflecting the effects of lower production costs and increased LME lead
prices, partially offset by lower premiums for lead metal and lower realized
prices for zinc concentrates. Peruvian operations had net income of $7.1 million
(excluding intercompany fees and eliminations of $2.3 million) in the 2001
quarter compared to net income of $3.1 million (excluding intercompany fees and
eliminations of $4.7 million) in the 2000 quarter. This increase in net income
is primarily the result of lower production costs and lower selling and
administrative, interest and other expenses, partially offset by the effects of
lower realized prices for copper, zinc and silver and lower treatment charges.
An income tax benefit in the 2001 quarter also contributed to the improvement in
net income.

     The Company reported a net loss of $20.0 million for the nine months ended
July 31, 2001 (the 2001 period) compared to a net loss of $20.1 million for the
nine months ended July 31, 2000 (the 2000 period). The Company's U.S. operations
reported a net loss of $30.7 million (excluding intercompany fees and
eliminations of $8.1 million) for the 2001 period compared to a net loss of
$30.4 million (excluding intercompany fee revenue of $14.1 million) for the 2000
period. In addition to the factors discussed above, the implementation of
Statement of Financial Accounting Standards No. 133 -Accounting for Derivative
Instruments and Hedging (FAS 133), increased the net loss for the 2001 period by
$1.4 million. See "Item 1. Financial Statements - Note 2 to the Company's
Consolidated Financial Statements" for a discussion of FAS 133. Peruvian
operations generated net income of $10.6 million for the 2001 period (excluding
intercompany fees of $7.1 million) compared to net income of $10.3 million
(excluding intercompany fees and eliminations of $15.7 million) for the 2000
period. The increase in Peruvian net income was primarily due to improved
results from the Cobriza mining operation and the income tax benefit discussed
above, partially offset by lower treatment charges received and the net effect
of FAS 133 which reduced net income by $.5 million.

     The Company's results for the quarter and the nine months ended July 31,
2001 reflect an increase in the market price of lead and declines in the market
prices of copper, zinc and silver. The following table sets forth average London
Metal Exchange (LME) prices for lead, copper and zinc and the average London
Bullion Market Association (LBMA) price for silver for the periods indicated:

<Table>
<Caption>
                                      Three Months Ended                 Nine Months Ended
                                           July 31,                           July 31,
                                ------------------------------      ------------------------------
                                    2001              2000              2001             2000
                                ------------      ------------      ------------      ------------
<S>                             <C>               <C>               <C>               <C>
AVERAGE PRICES
  Lead  ($/short ton)           $     415.00      $     388.00      $     429.20      $     406.00
  Copper  ($/short ton)             1,455.00          1,613.80          1,552.80          1,602.40
  Zinc  ($/short ton)                 811.40          1,031.20            889.60          1,033.60
  Silver ($/troy ounce)                 4.33              4.98              4.48              5.09
</Table>

                                       31
<Page>

     The average market price, determined on the London Metal Exchange (LME),
for refined lead was $429.20 per ton in the 2001 period. Over the past three
years the LME lead price has declined as new mines have been developed in
Australia and Ireland, and as China has increased its lead metal production and
exports. During the second and third quarters of fiscal 2000 lead prices
declined to near historic lows. Although lead prices in the 2001 period have
improved modestly, compared to the prior year, they remain substantially below
the average for the ten years 1991 through 2000.

     In the U.S. market, during the 2001 period, premiums over the LME have been
adversely impacted by the recessionary conditions in the U.S. economy. Slower
new car sales, which have reduced the demand for original equipment automotive
batteries, and slower automotive replacement battery shipments have weakened
overall demand, compared to the prior year. Also, a significant drop in demand
for batteries for the telecommunications industry occurred as a result of lower
capital expenditures for the industry's infrastructure.

     Management believes that lead prices will recover from the current low
level, as several large lead-producing mines will be depleted beginning in 2001
through 2006. This should significantly reduce western world production and
bring about a deficit in supply versus demand. In recent months, the industry
has seen evidence of this deficit as some primary smelters have cut back due to
limited concentrate availability and LME inventories have declined. In
publications issued in July and September of 2001, international commodity
consultants forecasted higher annual average lead prices for the years 2002
through 2006.

     Low metal prices, primarily lead and zinc, contributed to the operating
loss generated by the Company's U.S. operations in the three months and nine
months ended July 31, 2001. The Company has implemented changes to its
operations in an effort to mitigate the impact of low metal prices. These
actions, which are described below, are expected to reduce certain costs, and
achieve certain operating efficiencies resulting in lower production cost and
improved margins. However, prices sustained at these levels, or decreasing
further, are likely to result in the continuation of operating losses for the
Company's U.S. operations.

     The following table sets forth the Company's production statistics for the
periods indicated:

<Table>
<Caption>
                                                             Three Months Ended                 Nine Months Ended
                                                                   July 31,                          July 31,
                                                          ------------------------          ------------------------
                                                            2001            2000             2001             2000
                                                          -------          -------          -------          -------
<S>                                                        <C>              <C>             <C>              <C>
U.S. OPERATIONS
  Lead metal - primary (short tons)                        81,584           93,669          250,943          284,292
  Lead metal - secondary (short tons)                      38,926           35,722          114,359          105,260
  Lead concentrates (metal content, short tons)            77,866           75,131          240,652          241,991
  Ore Grade                                                  6.37%            5.86%            6.17%            5.77%

PERUVIAN OPERATIONS
  Refined copper (short tons)                              18,696           17,993           54,421           54,431
  Refined lead (short tons)                                33,823           33,228           99,729           98,121
  Refined zinc (short tons)                                22,042           21,701           65,278           64,356
  Refined silver (thousands of troy ounces)                 8,789            8,627           25,857           25,973
  Refined gold (thousands of troy ounces)                      22               21               64               71
  Copper concentrates (metal content, short tons)           4,630            3,988           13,381           15,312
  Ore Grade                                                  1.09%            0.92%            1.07%            0.88%
</Table>

     The Company's U.S. mining operations have reduced ore production compared
to prior year in an effort to increase grade and decrease unit production costs.
Primarily due to these changes in mining plans, ore production was scaled back
approximately 63,000 tons or 5% for the 2001 quarter and 309,000 tons or 7% for
the 2001 period, compared to the prior year. Ore grade improved 9% in the 2001
quarter and 7% in the 2001 period compared to the prior year. The improvement in
grade offset almost all of the impact of the

                                       32
<Page>

reduction in ore tonnage as production of lead metal contained in concentrates
was 4% higher for the 2001 quarter and less than 1% lower for the 2001 period,
compared to the prior year.

     On March 7, 2001, in response to continued poor lead metal market
conditions, the Company announced production changes at its U.S. primary lead
operations. These changes were made in an effort to allow the Company to compete
more effectively in the global market and improve overall financial performance.
The improvement should result from reduced production costs and enhanced product
mix as the smelters focus on producing specialty and alloy products. As a result
of these actions, the Company's Herculaneum primary smelter its annual refined
metal production rate by 80,000 tons from 250,000 to 170,000 tons by reducing
blast furnace and sinter plant operating time. The Company will also reduce
purchases of lead concentrates as well as production of concentrates at its
southeast Missouri mining operations. In May, the Company placed its No. 29 mine
on care and maintenance and plans to mine out its No. 28 mine during the second
half of fiscal 2002. The Company will also reduce total concentrate production
at its other five mines. These production changes resulted in a workforce
reduction of approximately 200 employees, which was completed in early May.

     The cost of severance benefits and outplacement services provided to
certain employees of approximately $0.8 million was accrued during the second
quarter and will be paid over 12 months beginning in May 2001. The estimated
cost of closing the No. 28 mine, the Viburnum mill and related surface
structures and tailings areas of approximately $0.6 million was previously
accrued during the operating life of the mine. These closure activities will be
performed as personnel and funds are available.

     Primary production decreased 13% for the quarter and 12% for the 2001
period, compared to the prior year, due to partial implementation of the 170,000
ton annual production rate at the Company's Herculaneum smelter and to
production problems at both primary smelters during the period.

     At Herculaneum, in order to consume inventories of lead concentrates and
sinter resulting from smelter production shortfalls in the first and second
quarters, full implementation of the 170,000 ton annual production rate was
delayed until the beginning of the fourth quarter. During the 2001 quarter,
production was reduced as a result of the partial implementation of the revised
operating plan. In addition, poor performance of the backup furnace during
scheduled maintenance, multiple cooling system failures due to poor water
quality, and poor coke quality caused outages and caused the furnaces to run
slowly for much of the period. As a result, production was approximately 11,600
tons, or 19% lower for the 2001 quarter and 27,900 tons, or 15% lower for the
2001 period compared to the 2000 period. The scheduled maintenance is complete
and the water quality and coke problems have been resolved. Herculaneum's
furnaces are currently operating at the 170,000 ton annual production rate.

     The Company's Glover primary smelter was forced to shut down several times
during the period due to mechanical failures of cooling system components, the
failure of a blast furnace baghouse fan motor and bearing problems with a
process baghouse fan. In addition, Glover was faced with the same coke quality
problem as Herculaneum. As a result, production at Glover was down about 2% for
the 2001 quarter and about 6% or 5,500 tons for the 2001 period, compared to the
prior year. Repairs to the cooling system and the blast furnace baghouse fan are
complete and coke problems have been resolved. Redesigned bearings for the
process baghouse fan are on order and are scheduled to be installed at the end
of October. The bearing problems are likely to slow production somewhat during
the fourth quarter. Glover is currently producing at approximately 92% of its
planned production.

     The Company's Buick secondary smelter installed a larger burner on the
reverberatory furnace and modifications were made to the feed delivery system
during the first quarter of 2001 in order to increase capacity. In addition,
operating procedures were changed in the plant's battery breaker, which
eliminated bottlenecks and improved throughput by 15%, making more feed
available to the furnaces. During the second quarter of 2001 Buick replaced its
blast furnace. The material feed and air control systems on the new blast
furnace were redesigned, improving output by approximately 25%. The results of
all of these improvements are reflected in Buick's production volume, which
improved approximately 9% for both the 2001 quarter and the 2001 period,
compared to the year in spite of downtime associated with the blast furnace
replacement during the second quarter.

                                       33
<Page>

     In Peru, at the La Oroya metallurgical complex production of refined lead,
zinc and silver each were up approximately 2% and refined copper production was
up 4% for the 2001 quarter. Refined copper production was about the same for the
2001 period despite a one-day production interruption resulting from a
mechanical failure in the copper smelter during the first quarter and limited
availability of economically suitable concentrates. Refined lead and zinc
production improved approximately 2% and 1%, respectively, in the 2001 period
compared to the prior year. Refined silver and gold production were both lower
in the 2001 period primarily due to lower metal content in the concentrate feed
used.

     In May 2000, the Company implemented changes in operations at its Cobriza
copper mining operation intended to improve ore grade and reduce unit production
cost. The changes involved a reduction in annualized ore production of
approximately 31%. Ore grade has improved since the new operating plan was
implemented, from 0.86% in the third quarter of 2000 to 1.09% in the 2001
quarter, which representsd a 19% increase over the 2000 quarter. Ore grade also
improved 22% for the 2001 period, compared to the 2000 period. Production of
metal contained in concentrates improved 16% for the 2001 quarter but was
approximately 13% lower in the 2001 period, due to the decrease in tons of ore
produced. During the second quarter of 2001, a new ore zone was identified near
the existing workings in the Cobriza mine. The Company is currently developing
this area and drilling to determine whether measurable ore reserves can be
identified. During the 2001 quarter approximately 2% of Cobriza's ore
production, or 7,600 tons with a grade of approximately 1.6% were extracted from
the new ore zone. At this time it is not known whether, or for how long, the
area can continue to yield ore of similar tonnages and grades.

                                       34
<Page>

     The following tables set forth the separate operating results, sales
volumes and realized prices for the Company's U. S. and Peruvian operations for
the periods indicated:

                           RESULTS OF U.S. OPERATIONS

<Table>
<Caption>
                                                                    Three Months Ended              Nine Months Ended
                                                                         July 31,                        July 31,
                                                                -------------------------       -------------------------
                                                                   2001           2000            2001            2000
                                                                ---------       ---------       ---------       ---------
<S>                                                             <C>             <C>             <C>             <C>
Net sales (a)                                                   $  69,636       $  76,099       $ 223,949       $ 236,298

Costs and expenses:
    Cost of sales  (a)                                             60,098          71,304         203,606         215,500
    Depletion, depreciation and amortization                        5,005           5,149          15,285          15,611
    Selling, general and administrative                             3,617           3,433          12,392          13,074
    Exploration                                                       387             783           1,215           2,324
    Unrealized gain on derivative financial instruments            (1,952)             --          (1,257)             --
                                                                ---------       ---------       ---------       ---------
        Total costs and expenses                                   67,155          80,669         231,241         246,509
                                                                ---------       ---------       ---------       ---------
         Loss from operations                                       2,481          (4,570)         (7,292)        (10,211)
Other income (expense)
    Interest expense                                              (10,392)        (10,568)        (31,920)        (31,124)
    Interest income                                                 3,523           3,523          10,682          10,584
    Other, net                                                        263             402             747           1,038
                                                                ---------       ---------       ---------       ---------
                                                                   (6,606)         (6,643)        (20,491)        (19,502)
                                                                ---------       ---------       ---------       ---------
          Loss before income tax expense                           (4,125)        (11,213)        (27,783)        (29,713)
Income tax expense                                                      9             217              59             652
                                                                ---------       ---------       ---------       ---------
         Loss before extraordinary item and cumulative
            effect of change in accounting principle               (4,134)        (11,430)        (27,842)        (30,365)
Extraordinary item related to retirement of long-term debt           (159)             --            (159)             --
Cumulative effect of change in accounting principle                    --              --          (2,649)             --
                                                                ---------       ---------       ---------       ---------
Net loss                                                        $  (4,293)      $ (11,430)      $ (30,650)      $ (30,365)
                                                                =========       =========       =========       =========
</Table>

(a)  Intercompany sales and fees that are eliminated in the consolidated results
     of the Company and have been excluded from the results presented above are
     as follows:

<Table>
<S>                                                             <C>             <C>             <C>             <C>
           Net sales                                            $   2,727       $   4,654       $   8,060       $  14,091
           Cost of sales                                              402              --             918              --

SALES VOLUMES (SHORT TONS)
    Lead metal                                                     93,012         106,805         303,889         318,352
    Zinc concentrates                                              21,457          24,169          71,223          71,878
    Copper concentrates                                             1,686           2,804           5,508          10,309

REALIZED PRICES ($/SHORT TON)(b)
    Lead metal                                                  $  514.23       $  495.15       $  527.47       $  516.40
    Zinc concentrates                                              240.04          347.68          273.18          351.47
    Copper concentrates                                           (180.31)         298.86          132.72          292.56
</Table>

(b)  Net realized prices for metals, concentrates, and by-products include the
     effects of changes in: 1) premiums received, including charges for special
     alloys and shapes, 2) adjustments to provisionally priced sales, 3)
     treatment and refining charges and 4) net hedging activity.

                                       35
<Page>

                         RESULTS OF PERUVIAN OPERATIONS

<Table>
<Caption>
                                                             Three Months Ended              Nine Months Ended
                                                                  July 31,                        July 31,
                                                         -------------------------       -------------------------
                                                            2001           2000            2001            2000
                                                         ---------       ---------       ---------       ---------
<S>                                                      <C>             <C>             <C>             <C>
Net sales (a)                                            $ 109,583       $ 118,689       $ 334,095       $ 361,001
Costs and expenses:
         Cost of sales (a)                                  93,860         104,659         294,330         316,941
         Depreciation and amortization                       2,474           2,250           7,228           6,652
         Selling, general and administrative (a)             2,624           3,810           8,917          10,735
         Exploration                                            --             906              --             906
         Unrealized loss(gain) on derivative
              financial instruments                            475              --            (586)             --
                                                         ---------       ---------       ---------       ---------
               Total costs and expenses                     99,433         111,625         309,889         335,234
                                                         ---------       ---------       ---------       ---------
               Income from operations                       10,150           7,064          24,206          25,767
Other income (expense):
         Interest expense                                   (4,580)         (5,033)        (13,977)        (14,902)
         Interest income                                       433              90             608             248
         Other, net                                           (501)            547            (634)             27
                                                         ---------       ---------       ---------       ---------
                                                            (4,648)         (4,396)        (14,003)        (14,627)
                                                         ---------       ---------       ---------       ---------
Income before income tax expense (benefit)                   5,502           2,668          10,203          11,140
Income tax expense (benefit)                                (1,591)           (390)         (1,568)            828
                                                         ---------       ---------       ---------       ---------
         Income before cumulative effect of change
              in accounting principle                        7,093           3,058          11,771          10,312
Cumulative effect of change in accounting principle             --              --          (1,125)             --
                                                         ---------       ---------       ---------       ---------
Net income                                               $   7,093       $   3,058       $  10,646       $  10,312
                                                         =========       =========       =========       =========
</Table>

(a)  Intercompany sales and fees that are eliminated in the consolidated results
     of the Company and have have been excluded from the results presented above
     are as follows:

<Table>
<S>                                                      <C>             <C>             <C>             <C>
         Net sales                                       $      --       $      24       $      --       $   1,573
         Cost of sales                                          --              24              --           1,573
         Selling,cgeneralfand administrative                 2,325           4,654           7,142          14,091

SALES VOLUMES

         Copper (short tons)                                19,101          17,805          54,441          54,332
         Lead (short tons)                                  33,591          33,285          99,707          94,235
         Zinc (short tons)                                  22,478          21,762          65,732          63,088
         Silver (thousands of troy ounces)                   8,798           8,564          25,744          25,764
         Gold bullion (thousands of troy ounces)                21              21              64              71
REALIZED PRICES

         Copper ($/short ton)                            $1,472.09       $1,605.33       $1,560.53       $1,598.16
         Lead ($/short ton)                                 434.03          387.03          445.27          408.90
         Zinc ($/short ton)                                 835.09        1,049.33          908.97        1,055.13
         Silver  ($/troy ounce)                               4.39            5.02            4.51            5.11
         Gold bullion  ($/troy ounce)                       269.53          280.55          265.61          286.51
</Table>

(b)  Net realized prices for metals, concentrates, and by-products include the
     effects of changes in: 1) premiums received, including charges for special
     alloys and shapes, 2) adjustments to provisionally priced sales, 3)
     treatment and refining charges and 4) net hedging activity.

                                       36
<Page>

     Results of operations for the three months and the nine months ended July
31, 2001 and 2000 include the results of the Company's U.S. and Peruvian
operations. In order to provide a more meaningful analysis, the results
attributable to Peruvian operations will be noted and discussed separately under
"Results of Peruvian Operations".

     NET SALES in the 2001 quarter were $179.2 million compared to $194.8
million in the 2000 quarter. A decrease of $9.1 million is attributable to
Peruvian operations. U.S. net sales decreased $6.5 million in the 2001 quarter,
compared to the 2000 quarter, primarily due to lower volume of lead metal, and
lower realized prices for zinc concentrates, partially offset by an increase in
purchased zinc sales. The average LME lead price for the 2001 quarter was 7%
higher than the 2000 quarter, but premiums were lower due to increasingly
competitive conditions in the U.S. market. As a result, the average realized
price for lead metal improved by 4%, increasing net sales by $1.8 million. Lead
metal sales volume decreased 13% or 13,800 tons in the 2001 quarter, compared to
the prior year, reducing net sales by $6.8 million. The reduced premiums and
volume are the result of the recessionary conditions in the U.S. market,
discussed earlier. Due to a 21% decrease in the LME zinc price and less
favorable results from hedging activities, the net realized price for zinc
concentrates declined 31% in the 2001 quarter, compared to the 2000 quarter,
reducing net sales by $2.3 million. Zinc and copper concentrate sales volumes
were lower in the 2001 quarter, primarily due to reduced production volume,
accounting for a $1.3 million reduction in net sales. These changes were
partially offset by increased purchased zinc sales volume, which added $1.5
million to net sales.

     Net sales for the 2001 period were $558.0 million compared to $597.3
million for the 2000 period. A decrease of $26.9 million is attributable to
Peruvian operations. U.S. net sales decreased $12.3 million in the 2001 period,
compared to the 2000 period, primarily due to reduced sales volumes and lower
realized prices for zinc concentrates, partially offset by higher lead prices
and increased sales of purchased zinc. Due to the factors discussed above, lead
metal sales volume was off 14,500 tons or 5% in the 2001 period, compared to the
prior year, accounting for a $7.5 million reduction in net sales. The LME
average lead price improved 6% compared to the prior year, but the impact was
partially offset by lower premiums. As a result, the realized price for lead
metal improved by about 2%, increasing net sales by $3.4 million. Zinc
concentrate net sales were $5.8 million lower in the 2001 period, compared to
the 2001 period, primarily due to a 14% decline in the LME average zinc price
and slightly lower sales volume. Copper concentrate net sales decreased $2.3
million in the 2001 period, compared to the 2000 period due to lower market
prices, hedging activity, adjustments to provisionally priced sales and lower
volume associated with the production changes discussed previously. Sales by the
Company's fabricated products subsidiary were $2.6 million lower in the 2001
period, compared to the 2000 period primarily due to reduced demand for oxide
and anodes. These changes were partially offset by a$2.2 million increase in net
sales due to higher purchased zinc volume

     COST OF SALES for the 2001 quarter was $154.0 million compared to $176.0
million for the 2000 quarter. Of this decrease, $10.8 million is attributable to
Peruvian operations. U.S. cost of sales decreased $11.2 million in the 2001
quarter, compared to the 2000 quarter, primarily due to lower lead metal sales
volume and reduced production costs. The decrease in lead metal sales volume
discussed above reduced cost of sales $7.3 million in the 2001 quarter, compared
to the 2000 quarter. Production costs for the quarter reflect partial
implementation of the production changes and cost reductions announced on March
7 (the revised operating plan), including the impact of improved ore grade.
Production for the quarter was also impacted by favorable adjustments to
property tax and fringe benefit accruals of $0.9 million. Lead metal unit
production costs for the 2001 quarter were approximately 8% lower than the 2000
quarter and about 10% lower than the second quarter of 2001. Zinc and copper
concentrate production costs and conversion costs at the Company's secondary
smelter were also lower. Combined, unit production costs decreases reduced cost
of sales $5.0 million in the 2001 quarter, compared to the 2000 quarter. These
decreases were partially offset by the increase in purchased zinc sales volume.

     Cost of sales for the 2001 period was $497.9 million compared to $532.4
million for the 2000 period. Of this decrease, $22.6 million is attributable to
Peruvian operations. U.S. cost of sales for the 2001 period was $11.9 million
less than the 2000 period. Volume changes, primarily lower lead metal and copper
concentrate sales volumes and reduced volumes at FPI and reduced cost of sales
by $9.4 million. During the

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2001 period the Company recognized an adjustment of property tax expense at the
Herculaneum smelter resulting from the settlement of a multi-year property tax
dispute, which reduced cost of sales $1.2 million. Production costs for the
period also reflect the partial implementation of the revised operating plan and
the accrual adjustments discussed above. As a result, lead metal unit production
costs for the 2001 period were down approximately 1%, compared to the 2000
period, which reduced cost of sales $2.3 million. This was accomplished despite
the impacts of reduced production volumes associated with the primary smelter
problems, discussed earlier costs and a significant increase in energy costs.
Energy costs for the 2001 period were $3.3 million higher than the 2000 period,
due to price increases primarily for natural gas and propane, which increased
approximately 103% and 39%, respectively. During 2001 quarter, these prices
dropped significantly. Propane prices were lower, compared to the 2000 quarter
while natural gas prices remain about 40% higher than the prior year.

     SELLING, GENERAL AND ADMINISTRATIVE expenses decreased by $1.0 million for
the 2001 quarter and $2.5 million for the 2001 period, compared to the prior
year. Peruvian operations accounted for decreases of $1.1 million for the
quarter and $1.8 million for the period, compared to the prior year. The
decrease in selling, general and administrative expenses for U.S. operations of
$0.7 million for the period is primarily due to reduced legal fees, association
dues and travel costs. Legal fees were down approximately $0.8 million for the
2001 period, compared to the prior year, primarily due to reduced activity on a
case that was being prepared for trial in the 2000 period. The other expense
reductions are primarily the result of continuing efforts to reduce expenses in
light of current economic conditions.

     EXPLORATION expense decreased $1.3 million for the 2001 quarter and $2.0
million for the 2001 period, compared to the prior year. Decreases of $0.9
million for both the quarter and the period are attributable to Peruvian
operations. The reductions in the U.S. are attributable to the suspension of all
drilling and fieldwork on the Company's Missouri and South African exploration
properties in an effort to conserve cash.

     UNREALIZED GAIN ON DERIVATIVES relates to the change in fair market
value of derivative financial instruments pursuant to FAS 133. For the 2001
quarter, gains relating to U.S. operations were partially offset by losses
relating to Peruvian operations of $0.5 million. Gains of $2.0 million in the
U.S. resulted from an increase in purchased lead futures contracts with
contract values lower than the July 31, 2001 market value, and from the
realization of losses on copper futures contracts that settled during the
quarter. For the 2001 period, the unrealized gain on derivatives was $1.8
million, of which $0.6 million was attributable to Peruvian operations. Gains
of $1.2 million in the U.S. resulted primarily from the factors discussed
above, offset by the effect of falling zinc prices on purchased futures
contracts at July 31, 2001.

     INCOME FROM OPERATIONS for the 2001 quarter was $12.6 million compared $2.5
million for the 2000 quarter. For the 2001 period, operating income was $16.9
million compared to $15.5 million for the 2000 period. An increase of $3.1
million for the quarter and a decrease of $1.6 million for the period are
attributable to Peruvian operations. In the U.S., income from operations was of
$2.5 million for the 2001quarter, compared to an operating loss of $4.6 million
for the 2000 quarter. For the 2001 period, the operating loss was $7.2 million
compared to a loss of $10.2 million for the 2000 period. These improvements are
primarily due to the factors discussed above.

     INCOME TAX EXPENSE for the 2001 quarter primarily reflects the provision
for the Company's Peruvian subsidiaries. As a result of the Company's tax status
in the U.S., the Company is not subject to federal and most state income taxes.

     CUMULATIVE EFFECT OF CHANGE IN ACCOUNTING PRINCIPLE relates to the adoption
of FAS 133. See "Item 1. Financial Statements - Note 2 to the Company's
Consolidated Financial Statements" for a discussion of FAS 133.

RESULTS OF PERUVIAN OPERATIONS

     NET SALES for 2001 quarter decreased $9.1 million, compared to 2000
quarter, primarily due to lower realized prices for copper, silver and zinc,
partially offset by increased sales volumes. Largely due to lower LME prices,
the Company's realized prices for copper, zinc and silver for the 2001 quarter,
compared to the 2000 quarter were lower by 8%, 21% and 13%, respectively,
reducing net sales by $12.9 million. Lower

                                       38
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volumes of by products, primarily bullion, lead reduced net sales another $1.6
million. These decreases were partially offset by the impact of higher lead
prices, which increased net sales by $1.6 million, and increased sales volumes
of all refined metals, which increased net sales $4.3 million.

     Net sales for the 2001 period were $26.9 million less than the 2000 period
due to lower realized prices for copper, silver, zinc, and gold and lower sales
volumes for gold bullion and by products, partially offset by increased sales
volumes for lead and zinc and higher lead prices. Silver prices declined 12% in
the 2001 period, compared to the 2000 period, reducing net sales $15.5 million.
The net realized price for zinc was 14% lower in the 2001 period, reducing net
sales by $9.7 million. Lower prices for copper, gold and by products decreased
net sales $4.1 million. Lower sales volumes of silver, gold and by products
reduced net sales another $7.1 million. These reductions were partially offset
by higher realized prices for lead metal, which increased net sales by $3.7
million, and increased sales volumes of lead and zinc, which increased net sales
$5.0 million.

     COST OF SALES for the 2001 quarter was $93.9 million, compared to $104.7
million for the 2000 quarter. Changes in unit production costs, which declined
for all metals except lead, accounted for a $12.1 million reduction in cost of
sales in the 2001 quarter, compared to the 2000 quarter. Unit costs declined,
primarily due to lower feed costs, which reflected the impact of lower metal
prices, partially offset by lower treatment charges. In addition, production
costs at the Company's Cobriza copper mining operation were 35% lower in the
2001 quarter, compared to the 2000 quarter, due to improved grade and reduced
operating costs resulting from the operating changes implemented in May of 2000
as well as the new ore zone identified during the second quarter. Conversion
costs at La Oroya were somewhat lower, primarily due to the Company's efforts at
cost containment.

     Cost of sales for the 2001 period declined $22.6 million compared to the
2000 period. Lower sales volumes for silver, gold and by products, partially
offset by increased copper, lead and zinc volumes account for $2.2 million of
the decrease. Changes in unit production costs, primarily due to the factors
discussed above, accounted for a $20.4 million reduction in cost of sales.

     SELLING, GENERAL AND ADMINISTRATIVE expenses decreased by $1.2 million for
the 2001 quarter and $1.8 million for the 2001 period, compared to the prior
year, primarily due to reduced compensation costs, professional fees and
expenses associated with the Company's helicopter, which was sold in the 2001
quarter.

     EXPLORATION Expense decreased $0.9 million for the 2001 quarter and the
2001 period, compared to the prior year, as work done to further delineate
reserves at the Company's Cobriza mine was completed in the 2000 quarter.

     UNREALIZED LOSS (GAIN) ON DERIVATIVES relates to the change in fair market
value of derivative financial instruments pursuant to FAS 133. Losses for the
2001 quarter resulted primarily from losses on sold zinc put options due to a
drop in the LME price for zinc. Gains for the 2001 period resulted primarily
from the effect of falling copper prices on sold futures contracts.

     INCOME FROM OPERATIONS was $3.1 million higher for the 2001 quarter but
$1.6 million lower for the 2001 period, compared to the prior year, due
primarily to the factors discussed above.

     INTEREST EXPENSE decreased $0.5 for the 2001 quarter and $0.9 million for
the 2001 period, compared to the prior year, primarily due to lower outstanding
balances on capital lease obligations and short-term bank debt and increases in
capitalized interest, partially offset by increased revolver interest resulting
from higher outstanding balances.

     INTEREST INCOME increased $0.3 million for the both 2001 quarter and the
2001 period, compared to the prior year, primarily due to interest on income
taxes due to the Company, which was received during the 2001 quarter.

     OTHER, NET expense was $0.5 million in the 2001 quarter, compared to other
net income $0.5 million in the 2000 quarter. This change is primarily due to the
absence, in the 2001 quarter, of $0.6 million of income from insurance
recoveries related to the oxygen plant at La Oroya, which was received in the
2000 quarter, and increases in other miscellaneous expenses.

                                       39
<Page>

     OTHER, NET expense increased $0.7 million in the 2001 period, compared to
the 2000 period, primarily due to the insurance recoveries discussed above.

     INCOME TAXES effective rate for the year of (51)%, compared to the
effective rate for the year ended October 31, 2000 of (19)% is due primarily to
the tax effects of FAS 133 and a change in the expected impact of inflation and
foreign exchange gains/losses on the Company. Benefit for the 2001 quarter
reflects revisions since the second quarter in the Company's pretax and taxable
income projections, as a result of a merger between Doe Run Peru S.R.L and Doe
Run Mining S.R.L.

     CUMULATIVE EFFECT OF CHANGE IN ACCOUNTING PRINCIPLE relates to the adoption
of FAS 133. See "Item 1. Financial Statements - Note 2 to Doe Run Peru's
Financial Statements" for a discussion of FAS 133.

LIQUIDITY AND CAPITAL RESOURCES

     The Company's liquidity requirements arise from its working capital
requirements, and capital investment and debt service obligations. The Company's
primary available sources of liquidity are cash provided by operating activities
and two revolving credit facilities. In the U.S., the Company has available a
revolving credit facility (the Doe Run Revolving Credit Facility) that provides
for advances by the lender to a maximum of $100.0 million less outstanding
letters of credit, based on specific percentages of eligible receivables and
inventories. As of July 31, 2001, $50.0 million, exclusive of $7.5 million of
letters of credit, was outstanding under the Doe Run Revolving Credit Facility.
On January 26, 2001, the Company entered into an amendment of the Doe Run
Revolving Credit Facility, which extends the term to January 15, 2003 and
establishes a reserve against calculated availability of $5.0 million. The
amendment also changed the net worth requirement, established a limitation on
capital expenditures in the U.S. and established requirements for earnings
before interest, taxes, depreciation, depletion, amortization and adjustments
made in accordance with FAS 133 (EBITDA) for U.S. operations. No other
significant terms of the original agreement were amended.

     In Peru, the Company has available a revolving credit facility (the Doe Run
Peru Revolving Credit Facility) that provides for advances by the lender to a
maximum of $40.0 million, less outstanding letters of credit, guarantee letters
and customs bonds based upon specific percentages of eligible receivables and
inventories. In addition the lender provides a separate line of $12.0 million
for the issuance of certain classes of guarantee letters. The sum of the
advances on both of these lines is limited to $42.0 million. At July 31, 2001,
$21.0 million, exclusive of $2.5 million of guarantee letters, was outstanding
under the Doe Run Peru Revolving Credit Facility and $1.5 million for guarantee
letters was outstanding under the separate line, described above. The Company
also has available, in Peru, unsecured and uncommitted credit arrangements and
additional availability related to letters of credit and customs bonds, provided
by local financial institutions. At July 31, 2001, $3.0 million in customs bonds
was outstanding under these arrangements.

     Net unused availability at July 31, 2001 was $8.1 million under the Doe Run
Revolving Credit Facility and $16.5 million under the Doe Run Peru Revolving
Credit Facility. In addition to availability under the credit facilities, the
Company had $9.2 million of cash at July 31, 2001. On June 4, 2001 the Company
received a refund of income tax prepayments from the Peruvian government of
approximately $12.7 million. At the same time, the Company paid $2.7 million for
certain tax liabilities. These transactions, net, effectively increased
availability in Peru by approximately $10.0 million. At August 31, 2001
availability was $7.1 million under the Doe Run Revolving Credit Facility and
$21.5 million under the Doe Run Peru Revolving Credit Facility, and the
Company's cash balance was $9.1 million.

     In the 2001 quarter, cash provided by operating activities was $23.9
million, cash provided by investing activities was $0.4 million and used in
financing activities was $21.8 million. For the 2001 period, cash provided by
operating activities was $27.6 million, cash used in investing activities was
$13.5 million and used in financing activities was $13.2 million.

     The Company had capital expenditures, including equipment financed with
capital leases, of $19.0 million in the 2001 period and has projected total
capital expenditures of approximately $24.2 million for fiscal 2001. In the
U.S., the Company had capital expenditures of $10.2 million for the 2001 period
and has

                                       40
<Page>

projected total capital expenditures of approximately $11.4 million for fiscal
2001, primarily to support ongoing operations and for operational and
environmental improvements. In addition to these capital investments, the
Company's U.S. operations expended an average of approximately $71.0 million per
year on repairs and maintenance from fiscal 1996 through fiscal 2000. As a
result of these expenditures, the Company believes that it operates and will
continue to maintain modern and efficient facilities.

     As part of the acquisition of its Peruvian operations, the Company has
undertaken a capital investment program, in part to satisfy an investment
commitment of $120.0 million as set forth in the purchase agreement. For
expenditures through October 31, 2000 Centromin has approved qualifying
expenditures under the investment commitment of approximately $88 million.
Additional expenditures for the first nine months of fiscal 2001 have not yet
been approved. Peruvian operations had capital expenditures, including equipment
financed with capital leases, of $8.1 million in the 2001 period and have
projected total capital expenditures of approximately $12.8 million for fiscal
2001, primarily for environmental improvements and to support ongoing
operations.

     The Company has substantial indebtedness and debt service requirements. As
of July 31, 2001, on a consolidated basis, the Company had $502.3 million of
indebtedness outstanding, or $377.3 million net of the Special Term Deposit made
in a foreign bank as collateral for a loan made to Doe Run Mining, securing
indebtedness of a like amount. The Company has recently developed projections
for the remainder of fiscal year 2001,and for fiscal year 2002. These
projections indicate that the Company should have sufficient liquidity to meet
its debt service requirements and that liquidity should be adequate through the
end of fiscal year 2002. However, lower than forecasted metal prices, premiums
or treatment and refining charges are likely to have an adverse impact on
liquidity. Changes in operating results, such as production interruptions or
less than expected ore grade could also adversely impact liquidity. Management
will monitor liquidity closely and will reevaluate capital, exploration and
maintenance spending levels and consider further changes in operations in order
to maintain sufficient liquidity. In addition, the Company is currently pursuing
various financing alternatives in an effort to improve its ability to meet
working capital and capital investment requirements while maintaining sufficient
liquidity and financial flexibility. There can be no assurance that the pursuit
of these alternatives will be successful.

     The Doe Run Revolving Credit Facility, the Doe Run Peru Revolving Credit
Facility, and the indentures governing the Notes contain numerous covenants and
restrictions. The more restrictive covenants included limitations on allowable
indebtedness and maintenance of minimum net worth, as defined, a limitation on
capital expenditures in the U.S. and EBITDA requirements in the U.S. The
indentures covering the Notes limit principal outstanding under various Peruvian
working capital facilities to $60 million. The Company was in compliance with
all applicable covenants at July 31, 2001.

     The ability of the Company to meet its debt service requirements and to
comply with these covenants is dependent upon future operating performance and
financial results, which are subject to financial, economic, political,
competitive and other factors affecting the Company, many of which are beyond
the Company's control.

FORWARD-LOOKING STATEMENTS

     This report includes "forward-looking statements" within the meaning of the
Private Securities Litigation Reform Act of 1995 which involve known and unknown
risks, uncertainties and other important factors that could cause the actual
results, performance or achievements of the Company to differ materially from
any future results, performance or achievements expressed or implied by such
forward-looking statements. Such risks, uncertainties, and other important
factors include, among others: general economic and business conditions;
increasing industry capacity and levels of imports of non-ferrous metals or
non-ferrous metals products; industry trends, including product pricing;
competition; currency fluctuations; the loss of any significant customer;
availability of qualified personnel; availability and cost of raw materials;
availability and cost of energy; effects of future collective bargaining
agreements; outcome of litigation, and major equipment failures. These
forward-looking statements speak only as of the date of this report. The Company
expressly disclaims any obligation or undertaking to disseminate any updates or
revisions to any forward-looking statement contained herein to reflect any
change in the Company's expectations with regard thereto or any

                                       41
<Page>

change in events, conditions, or circumstances on which any such statement is
based.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

     The Company has outstanding $55 million of floating interest rate senior
notes on which interest is payable based on the six-month LIBOR rate plus 6.29%,
reset at each interest payment date (March and September 15). The Company has
not hedged its risk with respect to fluctuations in the LIBOR rate. At July 31,
2001, the effective rate was 11.18%.

     In the normal course of its business, the Company has used in the past, and
may use in the future, forward sales commitments and commodity put and call
option contracts to manage its exposure to fluctuations in the prices of lead,
copper, zinc and silver. Contract positions are designed to ensure that the
Company will receive a defined minimum price for certain quantities of its
production. Gains and losses, and the related costs paid or premiums received
for option contracts which hedge the sales prices of commodities are recognized
in net sales when the related production is sold. None of the aforementioned
activities have been entered into for speculative purposes. See "Item 1.
Financial Statements--Note 6 to the Company's Condensed Consolidated Financial
Statements" for additional disclosures regarding these activities.

PART II. OTHER INFORMATION.

ITEM 1. LEGAL PROCEEDINGS

     DIXON, ET AL. VS. THE DOE RUN RESOURCES CORPORATION, ET A.L. was withdrawn
without prejudice by the plaintiffs.

     MITCHELL, ET. AL. VS. FLUOR CORPORATION ET AL. was filed July 9, 2001 in
the Circuit Court of the City of St. Louis. The plaintiffs seek to have
certified a class of children who lived in Herculaneum during a period of time
when they were nine months to six years old and children born to mothers who
lived in Herculaneum during their pregnancies. The remedy sought is medical
monitoring for the class.

     DOYLE, ET AL. VS. FLUOR CORPORATION ET AL. was filed July 9, 2001 in the
Circuit Court of the City of St. Louis. The plaintiffs seek to have certified a
class of property owners in a certain section of Herculaneum, alleging that
property values have been damaged due to the operations of the smelter.

     FIGGE, ET AL. VS. FLUOR CORPORATION ET AL was filed July 9, 2001 in the
Circuit Court of the City of St. Louis. The plaintiffs allege personal injury
against two children living in Herculaneum resulting from the operation of the
Company's smelter.

     DOWD, ET AL. VS. FLUOR CORPORATION ET AL was filed July 9, 2001 in the
Circuit Court of the City of St. Louis. The plaintiffs allege personal injury
against two children living in St. Francois County resulting from previous
mining operations of the Company.


ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K.

(a)  EXHIBITS.

     None

(b)  REPORTS ON FORM 8-K.

     None filed during the quarter reported on.


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<Page>

                               S I G N A T U R E S


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                      THE DOE RUN RESOURCES CORPORATION
                                      (Registrant)



September 14, 2001                    /s/ Marvin K. Kaiser
------------------                    --------------------------------------
     Date                             Marvin. K. Kaiser
                                      Vice President and Chief Financial Officer
                                      (duly authorized officer and principal
                                      financial officer)


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