ASARCO INC
10-Q, 1999-11-15
PRIMARY SMELTING & REFINING OF NONFERROUS METALS
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                                      1999
                                 Third Quarter
                                   Form 10-Q


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


              QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


For Quarter Ended September 30, 1999              Commission file number 1-164



                               ASARCO Incorporated
             (Exact name of registrant as specified in its charter)



           New Jersey                                         13-4924440
(State or other jurisdiction of                            (I.R.S. Employer
  incorporation or organization)                          Identification No.)



     180 Maiden Lane, New York, N.Y.                                10038
 (Address of principal executive offices)                        (Zip Code)



Registrant's telephone number, including area code                212-510-2000



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  preceding 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 ____


As of October 31, 1999 there were outstanding 39,952,357 shares of Asarco Common
Stock, without par value.


<PAGE>



                               ASARCO Incorporated
                                and Subsidiaries


                               INDEX TO FORM 10-Q


                                                                 Page No.

Part I.  Financial Information:

Item 1.  Financial Statements (unaudited)

Condensed Consolidated Statement of Earnings
  Three Months and Nine Months Ended
  September 30, 1999 and 1998                                        2

Condensed Consolidated Balance Sheet
  September 30, 1999 and December 31, 1998                           3

Condensed Consolidated Statement of Cash Flows
  Three Months and Nine Months Ended
  September 30, 1999 and 1998                                        4

Notes to Condensed Consolidated Financial Statements               5-11

Item 2.  Management's Discussion and Analysis of
         Financial Condition and Results of
         Operations                                                12-20

Report of Independent Accountants                                   21


Part II.  Other Information:

Item 1.  Legal Proceedings                                         22-23

Item 6.  Exhibits and Reports on Form 8-K                          24-25

Signatures                                                          26

Exhibit Index                                                       27

Exhibits                                                           28-52





                                       1
<PAGE>


<TABLE>

                               ASARCO Incorporated
                                and Subsidiaries

                  CONDENSED CONSOLIDATED STATEMENT OF EARNINGS
                                   (unaudited)


<CAPTION>
                                                              Three Months Ended                 Nine Months Ended
                                                                September 30,                      September 30,
                                                            1999              1998             1999             1998
                                                            -----            -----             -----            -----
                                                                     (in thousands, except per share data)
<S>                                                              <C>            <C>                 <C>             <C>

Sales of products and services                             $ 504,144          $ 545,600       $ 1,470,155       $1,731,258
                                                            -----------       -----------      -----------      ----------
Operating costs and expenses:
  Cost of products and services                              425,214            460,545         1,280,488        1,494,517
  Selling, administrative and other                           45,931             34,530           118,023          105,814
  Depreciation and depletion                                  37,124             36,107           110,241          108,065
  Research and exploration                                     5,826              6,669            16,502           21,710
  Environmental and other closed plant
    charges, net of recoveries                                 8,915              1,386            12,596            7,366
  Asset dispositions and impairments                          16,672                  -            16,672           20,000
                                                             --------           --------          --------        --------
  Total operating costs and expenses                         539,682            539,237         1,554,522        1,757,472
                                                            --------           --------         --------         --------
Operating income (loss)                                      (35,538)             6,363          (84,367)          (26,214)
Interest expense                                             (18,639)           (17,665)         (56,976)          (51,523)
Other income                                                  46,524              4,683           56,108            24,030
                                                            --------            --------          --------        --------
Earnings (loss) before taxes on income and
    minority interests                                        (7,653)            (6,619)         (85,235)          (53,707)
Taxes on income (benefit)                                     (8,471)              (943)         (33,554)          (16,918)
                                                            --------            --------         --------          --------
Earnings (loss) before minority interests                        818             (5,676)          (51,681)         (36,789)
Minority interests in net earnings of
    consolidated subsidiaries                                 (5,878)            (9,921)           (9,760)         (25,157)
                                                            --------            --------           --------        --------
Net earnings (loss)                                        $  (5,060)         $ (15,597)       $  (61,441)      $  (61,946)
                                                            =========         =========           =========       =========
Per share amounts:
  Net earnings (loss) - basic and diluted                   $  (0.13)          $  (0.39)        $  (1.55)         $   (1.56)
  Dividends to common stockholders                          $   0.05           $   0.20         $   0.15          $    0.60

Weighted average number of shares outstanding:
  Basic and Diluted                                           39,823             39,661           39,750            39,656



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

</TABLE>




                                       2
<PAGE>


<TABLE>

                                                         ASARCO Incorporated
                                                           and Subsidiaries

                                                 CONDENSED CONSOLIDATED BALANCE SHEET
                                                              (unaudited)

                                                               September 30,         December 31,
                                                                  1999                 1998
                                                                  -----                -----
<CAPTION>
                                                                     (in thousands)
ASSETS
<S>                                                              <C>                      <C>
Current assets:
  Cash and cash equivalents                                    $  151,675            $  193,048
  Marketable securities                                             1,084                22,705
  Accounts receivable, net                                        377,726               409,792
  Inventories                                                     347,557               352,411
  Other assets                                                    102,984               104,809
                                                                 ---------            ---------
     Total current assets                                         981,026             1,082,765

Investments:
  Available-for-sale and other at cost                            145,294               121,532
  Equity method                                                    62,817                64,465
Property, net                                                   2,620,930             2,526,567
Other assets including intangibles, net                           223,168               228,480
                                                               -----------           ----------
  Total Assets                                                 $4,033,235            $4,023,809
                                                               ===========           ===========
LIABILITIES
Current liabilities:
  Bank loans                                                   $    3,487            $    4,963
  Current portion of long-term debt                                47,344                27,676
  Accounts payable                                                381,469               336,501
  Salaries and wages                                               39,980                27,268
  Taxes on income                                                  97,543                84,007
  Reserve for closed plant and environmental matters               47,548                53,394
  Other current liabilities                                        25,349                47,611
                                                                 --------              --------
     Total current liabilities                                    642,720               581,420
                                                                 --------              --------
Long-term debt                                                  1,080,685             1,014,942
Deferred income taxes                                               9,886                56,045
Reserve for closed plant and environmental matters                 69,608                90,985
Postretirement benefit obligation                                 112,060               108,741
Other liabilities and reserves                                    120,194               113,754
                                                                ---------            ----------
     Total non-current liabilities                              1,392,433             1,384,467
                                                                ---------            ----------
MINORITY INTERESTS                                                538,424               533,329
                                                                ---------            ----------
COMMON STOCKHOLDERS' EQUITY
Common stock (a)                                                  529,313               521,956
Accumulated other comprehensive income (loss),
  net of tax                                                       (9,669)               (6,989)
Retained earnings                                                 940,014             1,009,626
                                                                ---------            ----------
  Total Common Stockholders' Equity                             1,459,658             1,524,593
                                                                ---------            ----------
  Total Liabilities, Minority Interests and Common

    Stockholders' Equity                                       $4,033,235            $4,023,809
                                                               ==========           ===========
(a)  Common shares: authorized 80,000; outstanding:                39,921                39,652

The accompanying notes are an integral part of these financial statements.
</TABLE>


<

                                       3
<PAGE>



<TABLE>
                                                          ASARCO Incorporated
                                                           and Subsidiaries

                                            CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
                                                              (unaudited)

 <CAPTION>
                                                                           3 Months Ended                    9 Months Ended
                                                                              September 30,                     September 30,
                                                                          1999             1998             1999            1998
                                                                                              (in thousands)
OPERATING ACTIVITIES
<S>                                                                       <C>             <C>              <C>              <C>
Net earnings (loss)                                                       $(5,060)        $(15,597)        $(61,441)      $(61,946)
Adjustments to reconcile net earnings (loss) to net cash provided
   from (used for) operating activities:
   Depreciation and depletion                                              37,124           36,107          110,241        108,065
   Provision (benefit)for deferred income taxes                           (18,381)         (11,721)         (46,124)       (36,686)
   Treasury stock used for employee benefits                                1,829                9            2,695          1,109
   Undistributed equity (earnings) losses                                     531              995           (1,138)         1,187
   Net (gain) loss on asset dispositions and impairments                   16,672                -           16,672         20,000
   Net (gain) loss on sale of investments and property                    (10,169)           1,564           (9,859)         1,839

   Decrease in reserves for closed plant and
     environmental matters                                                 (6,623)         (13,274)         (27,224)       (47,245)
   Minority interests                                                       5,878            9,921            9,760         25,157
   Cash provided from (used for) operating assets and liabilities:
          Accounts receivable                                              26,306           25,129           27,765         18,775
          Inventories                                                     (42,331)         (35,109)           3,384         11,993
          Accounts payable and accrued liabilities                         21,158            1,181           72,454         26,854
          Other operating assets and liabilities                           (5,483)          15,784           (3,274)        10,175
          Foreign currency transaction (gains) losses
                                                                              828            1,153            1,885          1,910
                                                                          --------        --------          --------       --------

Net cash provided from (used for) operating activities
                                                                           22,279           16,142           95,796         81,187
                                                                          --------        --------          --------     --------
INVESTING ACTIVITIES
Capital expenditures                                                      (87,730)         (84,834)        (232,380)      (255,961)
Sale of property                                                              240           47,079            1,972         49,447
Purchase of cost investments and businesses                                     -           (1,663)            (671)       (39,607)
Sale of available-for-sale securities                                       1,470            6,595           35,354         58,632
Purchase of available-for-sale securities                                  (1,653)          (8,455)         (34,756)       (70,306)
Purchase of held-to-maturity investments                                       (8)         (13,294)         (55,916)       (40,486)
Proceeds from held-to-maturity investments                                 30,612              862           77,537        180,854
                                                                          ---------       ---------        ---------      ---------
  activities                                                              (57,069)         (53,710)        (208,860)      (117,427)
                                                                          ---------       ---------        ---------      ---------
FINANCING ACTIVITIES
Debt incurred                                                              94,721           69,148          172,028        360,056
Debt repaid                                                               (24,613)         (50,361)         (86,263)      (294,203)
Escrow (deposits) withdrawals on long-term loans                                -           (5,016)             (67)         1,984
Treasury stock transactions                                                   933               (4)           2,532         (1,632)
Purchase of minority interests                                               (831)            (340)          (1,360)        (5,423)
Distributions to minority interests                                        (1,086)          (5,192)          (3,305)       (16,201)
Dividends paid to common stockholders                                      (1,990)          (7,932)          (5,960)       (23,793)
                                                                           ---------       --------        ---------      ---------
Net cash provided from (used for) financing
  Activities                                                               67,134              303           77,605         20,788
                                                                           ---------       ---------       ---------      ---------
Effect of exchange rate changes on cash                                    (5,413)          (3,628)          (5,914)        (3,677)
                                                                           ---------        ---------      ---------      ---------
Increase (decrease) in cash and cash equivalents                           26,931          (40,893)         (41,373)       (19,129)
Cash and cash equivalents at beginning of period                          124,744          232,323          193,048        210,559
                                                                         ----------       ----------      ----------     ----------
Cash and cash equivalents at end of period                               $151,675         $191,430         $151,675       $191,430
                                                                        ==========        ==========      ==========     ==========
The accompanying notes are an integral part of these financial statements.
</TABLE>



                                       4
<PAGE>




                               ASARCO Incorporated
                                and Subsidiaries

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)


A.   In the opinion of Asarco  Incorporated  ("the  Company"),  the accompanying
     unaudited   condensed   consolidated   financial   statements  contain  all
     adjustments  (consisting only of normal recurring adjustments) necessary to
     present  fairly the Company's  financial  position as of September 30, 1999
     and the results of  operations  and cash flows for the three and nine month
     periods ended September 30, 1999 and 1998. Certain  reclassifications  have
     been made in the financial  statements  from amounts  previously  reported.
     This    financial    data   has   been    subjected    to   a   review   by
     PricewaterhouseCoopers  LLP, the  Company's  independent  accountants.  The
     results of  operations  for the three month and nine month  periods are not
     necessarily indicative of the results to be expected for the full year. The
     December 31, 1998  condensed  consolidated  balance  sheet data was derived
     from audited  financial  statements,  but does not include all  disclosures
     required by generally  accepted  accounting  principles.  The  accompanying
     condensed  consolidated  financial statements should be read in conjunction
     with the  consolidated  financial  statements and notes thereto included in
     the Company's 1998 annual report on Form 10-K.


B.   The  company's  third quarter 1999 results  include  $16.7 million  pre-tax
     charge ($10.8  million  after-tax) as a result of the sale of the Troy mine
     and an  advanced  stage  exploration  project in Montana,  which  closed in
     October 1999.

     In addition,  during  the third quarter of 1999, the Company  concluded an
     agreement to acquire  7.125  million  newly issued  common  shares of Coeur
     d'Alene Mines, or a fully diluted 19.3% common stock interest.  In exchange
     for this interest, the Company contributed the following: its investment in
     Silver Valley  Resources  Corporation,  which operates the Coeur and Galena
     silver mines;  Asarco's  wholly-owned  subsidiary,  Empresa Minera Manquiri
     S.A.,  which owns an advanced  Bolivian  silver  exploration  project;  1.5
     million shares and warrants, representing an approximate 5% interest in Pan
     American Silver Corporation of Vancouver,  British Columbia;  and a 20% net
     profits  interest in the  Quiruvilca  silver  mine in Peru  operated by Pan
     American  Silver.  A pre-tax  gain of $10.2  million  was  recorded  by the
     Company on this transaction.

<TABLE>

C. Inventories were as follows:
         (in millions)
<CAPTION>
                                                                 September 30,         December 31,
                                                                     1999                  1998
                                                                  ----------            ----------
<S>                                                                    <C>                      <C>
     Inventories of smelters and refineries at lower of
         LIFO cost or market                                         $  6.5                 $  2.3
     Provisional cost of metals received from suppliers                66.2                   57.9
     Mine inventories at lower of FIFO cost or market                  66.5                   93.5
     Metal inventory at lower of average cost or market                48.4                   39.5
     Materials and supplies at lower of average cost or
       Market                                                         123.9                  124.9
     Other                                                        ----------            ----------

          Total                                                      $347.6                 $352.4

     At September  30, 1999 and December 31,  1998,  replacement  cost  exceeded
     inventories  valued at LIFO cost by  approximately  $82.6 million and $74.0
     million, respectively.
</TABLE>




                                       5
<PAGE>



D.   Financial Instruments

     Hedging:  Derivative  instruments  may be used to manage exposure to market
     risk from changes in commodity  prices,  interest rates or the value of the
     Company's  assets  and  liabilities.   Derivative   instruments  which  are
     designated  as  hedges  must be  deemed  effective  at  reducing  the  risk
     associated with the exposure being hedged and must be designated as a hedge
     at the inception of the contract.

     The Company may  purchase  put options or create  synthetic  put options to
     reduce or  eliminate  the risk of metal  price  declines  below the  option
     strike price on a portion of its anticipated future production. The cost of
     options is  amortized on a  straight-line  basis during the period in which
     the options are  exercisable.  Gains or losses from the sale or exercise of
     options, net of unamortized acquisition costs, are recognized in the period
     in which the  underlying  hedged  production is sold. The Company also uses
     futures  contracts to hedge the effect of price changes on a portion of the
     metals it sells.  Gains and losses on futures  contracts  are reported as a
     component of the underlying transaction.

     Trading Activities: Derivative instruments that do not meet the criteria to
     be designated as hedges are considered trading activities and are marked to
     market with the related adjustments recorded in net earnings.

     Swap  Agreements:  Interest  rate  swap  agreements  limit  the  effect  of
     increases in interest rates on floating rate debt. The  differential  to be
     paid or received as  interest  rates  change  under any such  agreement  is
     recorded  in interest  expense.  Fuel swap  agreements  limit the effect of
     increases in the price of fuel. The  differential to be paid or received as
     fuel prices change is recorded as a component of cost of sales.


E.   Business Segments:
         (in millions)
<TABLE>

     The Company's reportable segments are separately managed strategic business units that offer different products and services.

<CAPTION>
                                                            Three Months Ended                     Nine Months Ended
                                                              September 30,                          September 30,
     Segment Sales                                             1999             1998             1999                1998
     -------------                                          ---------      ---------          ---------        ---------
<S>                                                         <C>                  <C>              <C>              <C>

     Copper                                                $ 380.6           $ 411.3           $ 1,106.0          $  1,322.9
     Specialty Chemicals                                      84.4              86.6               259.3               259.6
     Aggregates                                               17.2              16.8           42.8                     41.4
     All Other                                                21.9              30.9             62.0                  107.4
       Total                                               $ 504.1           $ 545.6           $ 1,470.1            $1,731.3

     Segment Earnings
     ----------------
     Copper                                                  $(7.1)            $ 9.7              $(53.3)            $   9.5
     Specialty Chemicals                                       7.8               6.9                23.4                22.8
     Aggregates                                                5.2               4.9                 9.8                10.4
     Exploration                                              (4.1)             (3.9)              (11.5)              (14.1)
     All Other  (1)                                          (36.3)            (10.3)              (49.7)              (52.0)
       Total                                                 (34.5)              7.3               (81.3)              (23.4)
     Interest and other excluding
       equity (earnings) losses (2)                           26.8             (13.9)               (3.9)              (30.3)
     Earnings (loss) before taxes on income and
         minority interests
                                                            $ (7.7)           $ (6.6)            $ (85.2)            $ (53.7)
</TABLE>


                                       6
<PAGE>



     (1)  The All Other  segment  includes a $16.7  million  charge in the third
          quarter of 1999 to reflect the sale of the Troy Mine,  which closed in
          October 1999 and a $20.0  million  charge in the first quarter of 1998
          to  reflect  the  effect  of the sale of the  Missouri  Lead  Division
          ("MLD").

     (2)  Includes a $10.2 million gain in the third quarter of 1999 as a result
          of the  transaction  exchanging  the  Company's  investment  in Silver
          Valley Resources  Corporation and other assets for newly issued common
          shares of Coeur d'Alene Mines. The third quarter of 1999 also includes
          a $45.0 million merger  termination  fee  partially  offset by $11.4
          million in merger  related costs,  as further described in Footnote I,
          "Merger and Acquisition Developments".

With the sale of the MLD in 1998, the closure of the Black Cloud  lead-zinc mine
in Leadville, Colorado in the first quarter of 1999 and the change in management
responsibilities  completed in April 1999, the Company's Lead, Zinc and Precious
Metals  segment has been  reclassified.  The Company's  custom lead smelting and
zinc mining  operations  are  included in the All Other  segment,  and  precious
metals  refined at the Company's  copper  refineries  are included in the Copper
segment.


F.   Contingencies and Litigation:

Environmental Litigation and Related Matters

In  connection  with the matters  referred to below,  as well as at other closed
plants and sites where the Company is working with federal and state agencies to
resolve  environmental  issues,  the Company accrues for losses when such losses
are  probable  and  reasonably  estimable.  Such  accruals  are  adjusted as new
information  develops or  circumstances  change and are not  discounted to their
present  value.  Recoveries of  environmental  remediation  costs from insurance
carriers and other parties are recorded as assets when the recoveries are deemed
probable.

Reserves for closed plants and environmental matters, including mine reclamation
costs for active and closed properties,  totaled $117.2 million at September 30,
1999. The Company anticipates that expenditures  relating to these reserves will
be made  over the  next  several  years.  Net cash  expenditures  against  these
reserves  for the three  months  ended  September  30,  1999 and 1998 were $16.0
million and $15.4 million, respectively.  Expenditures for the nine months ended
September 30, 1999 and 1998 were $41.1 million and $55.4 million, respectively.

The effect on pre-tax earnings of  environmental  and other closed plant charges
was $8.9 million and $1.4 million for the three months ended  September 30, 1999
and 1998,  respectively,  and $12.6 million and $7.4 million for the nine months
ended September 30, 1999 and 1998, respectively.

In 1997,  separate  class actions were  commenced  against the Company in Omaha,
Nebraska and in Denver,  Colorado seeking  compensatory and punitive damages for
alleged contamination of properties by emissions from the Company's former Omaha
plant and the Globe plant in Denver.  In May 1999,  the United  States  District
Court for the District of Nebraska  dismissed  the action  relating to the Omaha
plant.  Plaintiffs  have  appealed  that  ruling  and filed a similar  action in
Nebraska  state  court.  The state court  lawsuit  has been  stayed  pending the
outcome of appeal  proceedings  in the federal  case.  The matter  regarding the
Globe plant has been settled  subject to court approval and has been recorded as
an accrued cost in the third quarter of 1999.



                                       7
<PAGE>



In March 1996,  the United  States  government  filed an action in United States
District  Court in Boise,  Idaho  against the  Company  and three  other  mining
companies  under the  Comprehensive  Environmental  Response,  Compensation  and
Liability Act of 1980 (CERCLA or Superfund)  and the federal Clean Water Act for
alleged natural  resource damage to the Coeur d'Alene River Basin in Idaho.  The
government  contends  that the  defendants  are  liable  for  damages to natural
resources  in a 1,500  square mile area caused by mining and related  activities
that they and others  undertook  over the period  between the  mid-1800s and the
mid-1960s.  The action also seeks a declaration  that  defendants are liable for
restoration of the area. The Company  believes,  and has been advised by outside
legal counsel,  that it has strong legal  defenses to the lawsuit.  In 1996, the
court granted a motion to consolidate  this case with a prior,  similar  lawsuit
filed  by the  Coeur  d'Alene  Tribe  of  Idaho.  In  1998,  the  United  States
Environmental  Protection  Agency (EPA) commenced a remedial  investigation  and
feasibility study of the Coeur d'Alene River Basin.

The Company,  the United States  Department  of Justice,  the EPA, and the Texas
Natural  Resources  Conservation  Commission  signed a consent  decree  filed in
United States  District  Court in Houston,  Texas in April 1999 covering a broad
range  of   environmental   issues   affecting   principally   the  facility  of
Encycle/Texas,  Inc., an indirect  wholly-owned  subsidiary  of the Company,  in
Corpus  Christi,  Texas and  Asarco's  Coy zinc mine in  Tennessee.  The consent
decree was approved by the Court in October 1999.  Subsequently  certain parties
who are adversary to the Company and Encycle/Texas,  Inc. in other suits filed a
motion to  intervene  and amend the  consent  decree.  The  Company and the U.S.
Government are opposing the motion.  Pursuant to the consent decree, the Company
will perform certain environmental projects and has paid a $5.5 million penalty,
without  an  admission  of  wrongdoing  or  liability.  The  Company's  existing
environmental  reserves  are  adequate  to  cover  the cost of the  penalty  and
supplemental environmental projects.

The Company and certain of its  subsidiaries  have received notices from EPA and
other  Federal and state  agencies  that they and in most cases  numerous  other
parties are potentially  responsible to remediate  alleged  hazardous  substance
releases at certain sites under CERCLA or similar  state laws. In addition,  the
Company and certain of its subsidiaries are defendants in lawsuits brought under
CERCLA or state laws that seek  substantial  damages and  remediation.  Remedial
action is being undertaken by the Company at some of the sites.

Product Litigation

The Company and two  subsidiaries,  as of September 30, 1999,  are defendants in
1,377 lawsuits brought by 5,950 primary and 1,036 secondary  plaintiffs  seeking
substantial  actual and punitive  damages for personal injury or death allegedly
caused by exposure to  asbestos.  Three of these  lawsuits are  purported  class
actions,  two of which are  allegedly  brought on behalf of persons  who are not
known to have  asbestos-related  injury.  The third is  purportedly  brought  on
behalf of  persons  suing both  tobacco-related  and  asbestos-related  entities
claiming  damages for personal injury or death arising from exposure to asbestos
and  cigarette  smoke.  In addition,  the Company and certain  subsidiaries  are
defendants in product  liability  lawsuits  involving  various  other  products,
including metals.



                                       8
<PAGE>



Other Litigation

The  Company is a  defendant  in  lawsuits  in  Arizona,  the  earliest of which
commenced in 1975,  involving the United  States,  Native  Americans,  and other
Arizona  water users  contesting  the right of the Company  and  numerous  other
individuals  and entities to use water and, in some cases,  seeking  damages for
water usage and alleged contamination of ground water. The lawsuits could affect
the  Company's  use of water at its Ray  Complex,  Mission  Complex,  and  other
Arizona operations.

The Company and certain  subsidiaries  are  defendants in four  purported  class
actions and thirteen  other lawsuits in Texas seeking  substantial  compensatory
and punitive damages for personal injury and contamination of property allegedly
caused by  present  and  former  operations  in Texas and  product  sales of the
Company and its subsidiaries.  Most of the cases name additional corporations as
defendants.

On  November  9, 1999,  an action was  commenced  against the Company in Federal
court in the  Southern  District  of New York by Cyprus  Amax  Minerals  Company
("Cyprus"),  a subsidiary  of Phelps Dodge  Corporation  ("Phelps  Dodge").  The
Company and Cyprus were formerly parties to a Merger  Agreement,  dated July 15,
1999,  and  amended  September  27, 1999 (the  "Cyprus  Merger  Agreement").  On
September 30, 1999,  Cyprus  terminated the Cyprus Merger  Agreement in order to
enter into a merger  agreement  with Phelps  Dodge and paid Asarco a $45 million
termination fee. Phelps Dodge subsequently acquired control of and a substantial
majority of the common shares of Cyprus. On October 5, 1999, the Company entered
into a merger agreement with Phelps Dodge (the "Phelps Dodge Merger Agreement").
On October 25, 1999, Asarco  terminated the Phelps Dodge Merger Agreement,  paid
Phelps Dodge a $30 million  termination fee and entered into a merger  agreement
with Grupo  Mexico,  S.A. de C.V. The action seeks  damages of not less than $90
million,  plus attorneys' fees and interest,  based on claims allegedly  arising
from the  foregoing  series of events.  Asarco  intends  to defend  the  lawsuit
vigorously.

Opinion of Management

Future environmental  related expenditures cannot be reliably determined in many
circumstances  due to the  early  stages  of  investigation,  the  uncertainties
relating to specific  remediation methods and costs, the possible  participation
of other potentially  responsible parties,  and changing  environmental laws and
interpretations.  Similarly,  due to the  uncertainty  of the  outcome  of court
proceedings,  future  expenditures  related  to  litigation  cannot be  reliably
determined.  It is the  opinion  of  management  that the  outcome  of the legal
proceedings and environmental  contingencies  mentioned, and other miscellaneous
litigation and proceedings now pending, will not materially adversely affect the
financial position of Asarco and its consolidated  subsidiaries.  However, it is
possible that litigation and environmental  contingencies  could have a material
effect on quarterly or annual operating results when they are resolved in future
periods. This opinion is based on considerations including experience related to
previous court judgments and settlements  and remediation  costs and terms.  The
financial viability of other potentially responsible parties has been considered
when  relevant  and no  credit  has been  assumed  for any  potential  insurance
recovery when not deemed probable.




                                       9
<PAGE>


<TABLE>

G. Comprehensive Income:

     Comprehensive income for the three and nine month periods ended September 30, 1999 and 1998 was as follows:

<CAPTION>
                                                                       Three Months Ended               Nine Months Ended
                                                                          September 30,                   September 30,
  (in thousands)                                                      1999            1998            1999            1998
                                                                     --------       --------        --------         --------
<S>                                                                         <C>           <C>            <C>          <C>

  Net earnings (loss)                                                  $(5,060)      $(15,597)        $(61,441)      $(61,946)

  Other comprehensive income (loss):
   Foreign currency translation adjustments                              5,913         (4,800)          (3,885)        (8,022)

  Unrealized gains (losses) on securities:
    Unrealized holding gains (losses) arising during the
      period, net of tax(a)                                               (485)        (4,672)           1,284         (6,205)

   Less: Reclassifications of gains to net earnings (loss), net
       of tax (b)                                                          -           (2,991)             (79)        (6,647)
                                                                        --------      --------        --------        --------
  Comprehensive income (loss)                                          $   368       $(28,060)        $(64,121)      $(82,820)
                                                                       =========     =========        =========      =========


     (a)  Includes  tax  expense  (benefit)  of $(261)  and $(173) for the three
          month period ended September 30, 1999 and 1998, respectively, and $691
          and $(999) for the nine month  period  ended  September  30,  1999 and
          1998, respectively.

     (b)  Includes  taxes of $1,611 for the three month period  ended  September
          30, 1998 and $42 and $3,579 for the nine month period ended  September
          30, 1999 and 1998, respectively.

     Accumulated other  comprehensive  income  balances as of September 30, 1999 and December 31, 1998 were as follows:
</TABLE>

<TABLE>
<CAPTION>

                                                                       Foreign
                                               Unrealized              currency               Accumulated other
                                              gain (loss)             Translation               comprehensive
                                              on securities           adjustments               income (loss)
                                           -----------------------------------------------------------------
     (in thousands)

     September 30, 1999
          <S>                                       <C>                      <C>                      <C>

      Balance on January 1, 1999               $  1,469                 $ (8,458)                 $ (6,989)
      Period change                               1,205                   (3,885)                   (2,680)
                                               ----------             -----------                ---------
      Balance on Sept 30, 1999                 $  2,674                 $(12,343)                 $ (9,669)
                                              ==========             ============                ==========

     December 31, 1998

      Balance on January 1, 1998              $  11,654                 $ (8,265)                   $3,389
      Period change                             (10,185)                    (193)                  (10,378)
                                               ----------             -----------                ---------
      Balance on December 31, 1998            $   1,469                 $ (8,458)                 $ (6,989)
                                              ==========             ============                ==========

</TABLE>



                                       10
<PAGE>



H.   Impact of New Accounting Standards:

In June 1998, the Financial  Accounting  Standards  Board (FASB) issued SFAS No.
133,  "Accounting  for  Derivative  Instruments  and Hedging  Activities."  This
statement   establishes   accounting  and  reporting  standards  for  derivative
instruments and hedging activities. Initially, the statement was to be effective
in fiscal years  beginning  after June 15, 1999.  In June 1999,  the FASB issued
SFAS No. 137 which  defers the  effective  date of SFAS No. 133 to fiscal  years
beginning after June 15, 2000. The Company is currently  assessing the impact of
SFAS No.133.


I. Merger and Acquisition Developments

On July 15, 1999, the Company and Cyprus Amax Minerals  Company  ("Cyprus Amax")
announced  an  agreement  for  the   combination  of  the  two  companies  in  a
merger-of-equals   transaction.   Phelps  Dodge  Corporation   ("Phelps  Dodge")
subsequently announced a hostile exchange offer for both Asarco and Cyprus Amax.
Cyprus Amax  terminated  the merger  agreement with Asarco on September 30, 1999
and subsequently agreed to merge with Phelps Dodge. In accordance with the terms
of the  Asarco/Cyprus  Amax  merger  agreement,  Cyprus Amax paid Asarco a $45.0
million termination fee.

On September 27, 1999,  Grupo Mexico,  S.A. de C.V.  ("Grupo  Mexico") a Mexican
mining and rail  conglomerate,  made an  unsolicited  cash offer for Asarco.  On
October 6, 1999 the Board of Directors of Asarco  announced that it had accepted
an offer from Phelps Dodge  Corporation to acquire Asarco common shares for cash
and stock of Phelps Dodge. On October 25, 1999,  Asarco terminated its agreement
with Phelps Dodge and announced that it had signed a definitive merger agreement
with Group Mexico  under which Grupo Mexico will acquire all of the  outstanding
shares of the Company's  common stock for $29.75 in cash. A  termination  fee of
$30  million  was paid to Phelps  Dodge as a result of the  termination  of that
agreement.

As a result of the  series of events  described  above,  Asarco  recorded  $11.4
million of investment banking, legal and other merger related costs in the third
quarter of 1999.

As of November 10, 1999,  35,780,174  of Asarco  Common Stock had been  tendered
under  the terms of the Grupo  Mexico  offer,  which  when  added to the  shares
already owned by Grupo Mexico,  represent  approximately  89.5% of the shares of
Asarco common stock. Grupo Mexico can effect a merger without a shareholder vote
if it owns at least 90% of the  outstanding  Asarco  shares.  Grupo  Mexico  has
extended the  expiration of its offer for Asarco  through  Friday,  November 12,
1999.

Concurrent  with the  consummation  of Grupo Mexico's  tender offer for Asarco's
common shares,  benefits under certain employee benefit plans amounting to $24.0
million will become payable.  Other merger related fees, payable upon completion
of a merger transaction are estimated to be approximately $9.5 million.






                                       11
<PAGE>



                                  Part I Item 2

                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


The Company  reported a net loss of $5.1 million,  or 13 cents per common share,
for the quarter  ended  September  30, 1999,  compared  with a net loss of $15.6
million, or 39 cents per common share, for the quarter ended September 30, 1998.
Results for the third quarter of 1999 include  $26.1 million in pre-tax  charges
to  reflect  the  effect  of a sale  of the  Troy  mine  and an  advanced  stage
exploration  project  in  Montana  and two legal  settlements  concluded  by the
Company,  and a $10.2  million  pre-tax  gain from an exchange of the  Company's
investment in Silver Valley Resources and other assets for an ownership interest
in Coeur  D'Alene  Mines.  Third  quarter  results  also include  $45.0  million
received from Cyprus Amax for termination of a merger agreement partially offset
by $11.4 million in merger related costs.

For the nine month period ended  September 30, 1999, the Company  reported a net
loss of $61.4  million  or $1.55 per  share,  compared  with a net loss of $61.9
million, or $1.56 per share, for the nine months ended September 30, 1998. Lower
copper prices in 1999, which reduced earnings by approximately  $54 million were
offset by receipt of the merger termination fee described above and the benefits
from the Company's cost reduction program,  which are estimated to have improved
results by approximately $28 million.

The average price for copper on the New York Commodity  Exchange (COMEX) and the
London Metal Exchange (LME) was 78 cents and 76 cents per pound, respectively in
the third quarter of 1999, and 75 cents and 74 cents per pound,  respectively in
the third quarter of 1998.

On September  9, 1999,  the Company  concluded  an  agreement  to acquire  7.125
million newly issued common  shares of Coeur d'Alene  Mines,  or a fully diluted
19.3%  common  stock  interest.  In  exchange  for this  interest,  the  Company
contributed   the  following:   its   investment  in  Silver  Valley   Resources
Corporation,  which  operates  the  Coeur  and  Galena  silver  mines;  Asarco's
wholly-owned  subsidiary,  Empresa Minera Manquiri S.A.,  which owns an advanced
Bolivian  silver   exploration   project;   1.5  million  shares  and  warrants,
representing  an approximate 5% interest in Pan American  Silver  Corporation of
Vancouver,  British  Columbia;  and a 20% net profits interest in the Quiruvilca
silver mine in Peru  operated by Pan  American  Silver.  The Company  recorded a
pre-tax gain of $10.2 million as a result of the transaction.

On July 15, 1999, the Company and Cyprus Amax Minerals  Company  ("Cyprus Amax")
announced  an  agreement  for  the   combination  of  the  two  companies  in  a
merger-of-equals   transaction.   Phelps  Dodge  Corporation   ("Phelps  Dodge")
subsequently announced a hostile exchange offer for both Asarco and Cyprus Amax.
Cyprus Amax  terminated  the merger  agreement with Asarco on September 30, 1999
and agreed to merge  with  Phelps  Dodge.  In  accordance  with the terms of the
Asarco/Cyprus  Amax merger  agreement,  Cyprus Amax paid Asarco a $45.0  million
termination fee.

                                       12
<PAGE>


On September 27, 1999,  Grupo Mexico,  S.A. de C.V.  ("Grupo  Mexico") a Mexican
mining and rail  conglomerate,  made an  unsolicited  cash offer for Asarco.  On
October 6, 1999 the Board of Directors of Asarco  announced that it had accepted
an offer from Phelps Dodge  Corporation to acquire Asarco common shares for cash
and stock of Phelps Dodge. On October 25, 1999,  Asarco terminated its agreement
with Phelps Dodge and announced that it had signed a definitive merger agreement
with Group Mexico  under which Grupo Mexico will acquire all of the  outstanding
shares of the Company's  common stock for $29.75 in cash. A  termination  fee of
$30  million  was paid to Phelps  Dodge as a result of the  termination  of that
agreement.

As a result of the  series of events  described  above,  Asarco  recorded  $11.4
million of investment banking, legal and other merger related costs in the third
quarter of 1999.

As of November 10, 1999,  35,780,174  of Asarco  Common Stock had been  tendered
under  the terms of the Grupo  Mexico  offer,  which  when  added to the  shares
already owned by Grupo Mexico,  represent  approximately  89.5% of the shares of
Asarco common stock. Grupo Mexico can effect a merger without a shareholder vote
if it owns at least 90% of the  outstanding  Asarco  shares.  Grupo  Mexico  has
extended the  expiration of its offer for Asarco  through  Friday,  November 12,
1999.

Concurrent  with the  consummation  of Grupo Mexico's  tender offer for Asarco's
common shares,  benefits under certain employee benefit plans amounting to $24.0
million will become payable.  Other merger related fees, payable upon completion
of a merger transaction are estimated to be approximately $9.5 million.

The  Company's  beneficial  interest in mined copper  production  totaled  240.9
million  pounds in the third quarter of 1999 compared with 264.5 million  pounds
in the third  quarter of 1998.  Lower copper  production  at the Mission and Ray
copper mines was partially  offset by higher  production at Southern Peru Copper
Corporation (SPCC)  operations.  Mined copper production in the third quarter of
1999 at SPCC  increased by 16% compared  with the third quarter of last year due
to the Cuajone mine expansion, which was completed in the first quarter of 1999.

The  Company's  specialty  chemicals  business,  Enthone-OMI  Inc.,  had pre-tax
profits of $7.8  million in the third  quarter of 1999,  an  increase  from $6.9
million in the third quarter of 1998 mostly as a result of higher sales in Asia.

Pre-tax profits for the Company's  aggregates  business were $5.2 million in the
third  quarter of 1999  compared  with $4.9 million in the third  quarter of the
prior year. The increase was primarily due to higher sales volume as a result of
strong demand for construction materials.


Sales:  Sales of products and services were $504.1  million in the third quarter
of 1999,  compared with $545.6 million in the same period of 1998. Sales for the
nine month period ended September 30, 1999 were $1,470.1  million  compared with
$1,731.3 million for the same period of 1998.

The third quarter  decrease is primarily due to lower metal sales volume,  which
reflects  SPCC's  additional  sales of blister  copper  produced from  purchased
concentrates in the prior year, the curtailment of the Company's copper refinery
in Amarillo,  Texas and the sale of the Missouri Lead  Division.  The nine month
decrease is primarily due to lower metals prices in addition to the lower metals
sales volume.



                                       13
<PAGE>


<TABLE>

Metal sales  volumes and prices for the three month and nine month periods ended
September 30, 1999 and 1998 were as follows:
<CAPTION>


Metal Sales Volume:                                           Three Months Ended                  Nine Months Ended
                                                                 September 30,                      September 30,
                                                             1999            1998              1999               1998
                                                            ------         ------            ------             ------
        <S>                                                     <C>            <C>                <C>                <C>
     Copper (000s pounds)
          Asarco                                              233,700         281,500            865,200             906,400
          SPCC  (1)                                           199,000         215,900            548,900             553,100
                                                          ------------    ------------    ---------------    ----------------
          Consolidated                                        432,700         497,400          1,414,100           1,459,500

          Asarco Beneficial Interest(2)                       336,800         393,600          1,148,900           1,192,700


       Silver (000s ounces)
          Asarco                                                2,615           2,125             11,283              13,043
          SPCC (1)                                                987             910              2,294               2,428
                                                          ------------    ------------    ---------------    ----------------
          Consolidated                                          3,602           3,035             13,577              15,471

          Asarco Beneficial Interest(2)                         3,141           2,609             12,505              14,335


       Zinc (000s pounds) (3)
          Asarco                                               24,300          46,000             95,000             121,000


       Molybdenum (000s pounds) (3)
          Asarco                                                  963           1,309              2,853               4,028
          SPCC  (1)                                             3,018           2,450              8,570               8,030
                                                          ------------    ------------    ---------------    ----------------
          Consolidated                                          3,981           3,759             11,423              12,058

          Asarco Beneficial Interest(2)                         2,572           2,613              7,420               8,299

     (1)  SPCC presented at 100%.

     (2)  The Company's  equity  interest in SPCC at both September 30, 1999 and
          1998, was 54.3%. The Company's  beneficial  interest in the operations
          of SPCC, net of the remaining labor shares interest, was 53.3% at both
          Sept 30, 1999 and 1998.

     (3)  The Company's  zinc and  molybdenum  production is sold in the form of
          concentrates.  Volume  represents  pounds of zinc and molybdenum metal
          contained in those concentrates.
</TABLE>

Average Metal Prices:

Prices for the  Company's  metals are  established  principally  on the New York
Commodity Exchange (COMEX) or the London Metal Exchange (LME).

                                Three Months Ended         Nine Months Ended
                                  September 30,              September 30,
                               1999          1998         1999           1998
                              ------        ------       ------         ------
Copper (per pound - COMEX)     $0.78         $0.75       $0.70           $0.77
Copper (per pound - LME)       $0.76         $0.74       $0.69           $0.77
Silver (per ounce - COMEX)     $5.24         $5.18       $5.21           $5.70
Zinc (per pound - LME)         $0.51         $0.46       $0.48           $0.48
Molybdenum (per pound -
 Metals Week Dealer Oxide)     $2.63         $3.20       $2.61           $3.65



                                       14
<PAGE>



Derivative  Instruments:  The Company uses derivative  instruments to manage its
exposure to market risk from changes in commodity prices,  interest rates or the
value of its assets and liabilities. Derivative instruments which are designated
as hedges must be deemed  effective  at reducing  the risk  associated  with the
exposure  being hedged and must be designated as a hedge at the inception of the
contract.


HEDGING:

Metal  Futures  Contracts:  The majority of the Company's  activities  involving
metal  futures  contracts  are  designed  to match  the price  realized  for the
Company's  metal  production as closely as possible to the average monthly price
of the metal on the COMEX or LME during the month the Company makes shipments to
customers.  For instance, sales contracts with customers may provide for pricing
in a month  other  than  the  month  of  shipment.  In cases  where  pricing  is
established  in a month later than the month of shipment,  the Company will sell
forward  an  equivalent  amount  of metal to the month  that the price  with the
customer is established.  The gain or loss on these forward  contracts is offset
with a lower or higher price on the customer  invoice.  Metal futures  contracts
are also used to hedge the price of metals  purchased  by the Company from third
parties.  Gains and losses on the liquidation of futures  contracts are included
in  earnings at the same time  revenue  from the related  sale  transactions  is
recognized.

At September  30, 1999 and  December  31,1998,  the  Company's  Aggregate  metal
futures contract positions were as follows:

  (in thousands)
                                        Notional              Unrealized
                        Weight           Values               Gain (Loss)
                      ----------------------------------- --------------------
  September 30,1999
 -------------------
  Copper (pounds)        101,022          $ 74,938         $  5,084
  Silver (ounces)          2,740          $ 14,418         $   (231)
  Gold   (ounces)             12            $5,856         $  2,202
  Lead   (pounds)          1,708             $ 454         $     60
  Nickel (pounds)          1,030            $2,863         $   (523)

  December 31,1998
- -------------------
  Copper (pounds)         71,860          $ 48,207          $ 1,457
  Silver (ounces)          5,630          $ 28,078          $  (184)
  Gold   (ounces)             32            $9,374          $   206
  Lead   (pounds)          3,362             $ 742          $   (13)
  Nickel (pounds)              -                 -                   -

In the preceding table notional values  represent the purchase or sales price of
the metal under  contract.  The unrealized gain or loss, if any, is the increase
or decrease in the value of the contract as of the date indicated.

The effect of a hypothetical  10 percent  unfavorable  change in metal prices on
the Company's  September 30, 1999 positions  would be a loss of $5.4 offset by a
corresponding  gain on the related  customer  contracts being hedged.  Since the
notional value  displayed in the table above  represents the absolute sum of all
outstanding  futures  contracts,  it is not an  accurate  measure of risk to the
Company from these transactions.




                                       15
<PAGE>



Price  Protection:  Depending  on the market  fundamentals  of a metal and other
conditions, the Company may purchase put options or create synthetic put options
to reduce or eliminate the risk of metal price  declines below the option strike
price on a portion of its anticipated future  production.  Synthetic put options
consist of a call option and a forward sale of the same quantity of metal. These
put options  establish a minimum sales price for the production  covered by such
put options and permit the Company to participate in price  increases  above the
option price.  The cost of options is amortized on a straight-line  basis during
the  period  in  which  the  options  are  exercisable.  Depending  upon  market
conditions, the Company may either sell options it holds or exercise the options
at  maturity.  Gains or losses  from the sale or  exercise  of  options,  net of
unamortized  acquisition  costs,  are  recognized  in the  period  in which  the
underlying  production  is sold.  At September  30,  1999,  the Company held put
options covering 77.9 million pounds of copper exercisable in the fourth quarter
of 1999 at an average strike price of 76 cents per pound.  The carrying value of
the put options was $1.6 million. At December 31, 1998, the Company did not hold
any put options.

Earnings  include pre-tax gains of $11.0 million for the nine month period ended
September 30, 1998,  from option sales and  exercises  related to copper sold in
the first half of 1998,  including the Company's  beneficial  interest in SPCC's
price  protection  program.  There  were no pre-tax  gains or losses  from price
protection programs in the nine month period ended September 30, 1999.

Fuel Swaps:  The Company may enter into fuel swap agreements to limit the effect
of increases in fuel prices on its production  costs. A fuel swap  establishes a
fixed price for the quantity of fuel covered by the  agreement.  The  difference
between the published  price for fuel and the price  established in the contract
for the  month  covered  by the swap is  recognized  as a  component  of cost of
products  and  services.  As of September  30, 1999 and  December 31, 1998,  the
Company had entered into the following fuel swap agreements:

                                                                  Weighted
                                                                   Average
                                                                  Contract
Fuel Type                             Period        Quantity        Price
- --------------------------------- ---------------------------------------------

September 30, 1999
- -------------------
Residual Oil (Barrels)              10/99-12/99       521,700      $11.02
Residual Oil (Barrels)               1/00-12/00     1,468,800      $12.80
Diesel Fuel  (Barrels)              10/99-12/99       255,900      $17.90
Diesel Fuel  (Barrels)               1/00-12/00       786,000      $19.33
Natural Gas  (BTUs in millions)     10/99-6/01      3,258,900      $ 2.14

December 31, 1998
- -------------------
Residual Oil (Barrels)               1/99-9/99      1,095,000      $ 9.84
Diesel Fuel  (Barrels)               1/99-9/99        564,000      $15.35
Natural Gas  (BTUs in millions)          -               -           -


The  unrealized  gain in the Company's fuel swap positions at September 30, 1999
was $14.6  million.  The  effect of a  hypothetical  10  percent  decrease  from
September  30, 1999 fuel prices would be to reduce the  unrealized  gain on fuel
swaps by $6.6 million.



                                       16
<PAGE>



Interest Rate Swaps: The Company may enter into interest rate swap agreements to
limit the effect of interest rates on any floating rate debt.  The  differential
to be paid or received as interest rates change is recorded in interest expense.
During  1995,  the  Company  entered  into a swap  agreement  with an  aggregate
notional  amount of $15.0  million to limit the  interest  rate  exposure on its
$15.0 million, 5 year term loan to 6.8%.  Interest expense would have been lower
by $48,000  and  $87,000 in the  quarters  ended  September  30,  1999 and 1998,
respectively, had the Company not hedged its exposure.

The effect of a  hypothetical  decrease of 1% in the  prevailing  interest  rate
would  be to  increase  interest  expense  by  approximately  $100,000  over the
remaining life of the contract over what it would have been had the exposure not
been hedged.


TRADING:

Price protection  programs utilizing synthetic puts may be implemented in steps.
In cases where the step  approach is used,  the  Company's  objective is to take
advantage of current  market  conditions  to minimize its cost of the  synthetic
put.  Until a synthetic put is  completed,  any calls not matched with a forward
sale are considered trading activities and are marked to market with the gain or
loss, if any,  recorded in earnings.  At September 30, 1999, the Company did not
hold any call  options.  Earnings  for the  quarter  ended  September  30,  1998
included pre-tax losses of $0.2 million of unrealized mark to market losses.

The Company may hold positions in the metals futures markets for metals which it
produces but which are not related to any  specific  sales to  customers.  These
contracts are  considered  trading  activities and are marked to market with the
gain or loss, if any, recorded in earnings. At September 30, 1999 and 1998, such
futures positions were insignificant.


Cost of Products and Services: Cost of products and services were $425.2 million
and  $460.5  million  for the  quarters  ended  September  30,  1999  and  1998,
respectively and $1,280.5 million and $1,494.5 million for the nine months ended
September  30,  1999 and 1998,  respectively.  The third  quarter and nine month
decrease in 1999 is primarily due to lower costs  resulting from the curtailment
of the Company's  copper refinery in Amarillo,  Texas, the lower sales volume at
SPCC and the sale of the Missouri  Lead  Division.  In addition,  the nine month
decrease reflects the benefits of the Company's cost reduction program.


Other Operating Costs: Selling, administrative and other expenses were $45.9 and
$34.5 million in the third quarters of 1999 and 1998,  respectively,  and $118.0
million  and $105.8  million for the nine months  ended  September  30, 1999 and
1998,  respectively.  The increase in the three month and nine month periods was
due to higher  corporate  administrative  costs,  which included the approval of
management  incentive  compensation  awards in the third quarter 1999 and higher
selling expenses related to the specialty chemicals business.

Research and exploration  expense was $5.8 million and $6.7 million in the third
quarters of 1999 and 1998, respectively, and $16.5 million and $21.7 million for
the nine months ended September 30, 1999 and 1998, respectively. The decrease in
the three month and nine month periods was due to lower spending in 1999 as part
of the Company's cost reduction program.




                                       17
<PAGE>



Environmental  and other closed plant charges were $8.9 million and $1.4 million
for the quarters  ended  September  30, 1999 and 1998,  respectively,  and $12.6
million and $7.4 million for the nine months ended  September 30, 1999 and 1998,
respectively.  The three  month and nine month  increases  was  largely due to a
legal settlement concluded by the Company.

Asset  dispositions  and impairments of $16.7 million for the three months ended
September 30, 1999 were due to recording the effect of the sale of the Troy mine
and an advanced stage  exploration  project in Montana.  Asset  dispositions and
impairments for the nine months ended September 30, 1998 include a $20.0 million
charge to reflect the effect of the sale of the Missouri Lead Division.


Non-operating  Items:  Interest  expense was $18.6 million and $17.7 million for
the quarters ended September 30, 1999 and 1998, respectively,  and $57.0 million
and  $51.5  million  in the nine  months  ended  September  30,  1999 and  1998,
respectively.  The  increases in the three month and nine month  periods in 1999
reflected  higher  borrowings  partially  offset by lower rates on floating rate
debt.

Other income was $46.5 million and $4.7 million for the quarters ended September
30, 1999 and 1998,  respectively,  and $56.1  million and $24.0  million for the
nine months ended September 30, 1999 and 1998, respectively. The increase in the
three month periods is due to the $45.0 million break-up fee paid to the Company
by Cyprus Amax and a $10.2 million gain related to the Silver  Valley  Resources
transaction and other assets partially offset by $11.4 million of merger related
costs and slightly lower interest income.


Taxes on Income: The increase in the rate of the consolidated tax benefit in the
third  quarter of 1999 as  compared  to the third  quarter of 1998 is  primarily
attributable  to the reversal of previously  accrued tax  liabilities  resulting
from a favorable settlement of IRS audit issues.


Cash Flows:

Third quarter - Net cash provided from  operating  activities  was $22.3 million
for the third  quarter of 1999 and was due to the $45  million  termination  fee
received from Cyprus Amax,  higher accounts payable and accrued  liabilities and
lower accounts receivable, partially offset by increased inventory. In the third
quarter of 1998, net cash provided from  operating  activities was $16.1 million
and was caused by lower receivables,  and higher payables,  accrued  liabilities
and minority interest.

Net cash used for investing activities was $57.1 million in the third quarter of
1999 and was due to capital  expenditures  partially  offset by higher  proceeds
from  held-to-maturity  investments  at SPCC. In the third quarter of 1998,  net
cash used for  investing  activities  was $53.7 million  principally  related to
capital expenditures  partially offset by proceeds from the sale of the Missouri
Lead Division.

Nine Months - Net cash provided from  operating  activities was $95.8 million in
the nine month period ended  September  30, 1999 and was primarily due to higher
accounts  payable  and  lower  accounts  receivable.  In the nine  months  ended
September  30, 1998,  net cash  provided  from  operating  activities  was $81.2
million and was caused by higher  payables,  accrued  liabilities  and  minority
interest, and lower inventories and receivables.



                                       18
<PAGE>




Net cash used for  investing  activities  was  $208.9  million in the nine month
period ended  September 30, 1999 and was primarily due to capital  expenditures.
In the nine month period ended  September 30, 1998,  net cash used for investing
activities was $117.4 million  principally  related to capital  expenditures and
the  purchase  of a German  specialty  chemicals  company by  Enthone-OMI  Inc.,
partially  offset by higher proceeds from  held-to-maturity  investments at SPCC
and proceeds from the sale of the Missouri Lead business.


Liquidity and Capital Resources:  At September 30, 1999, the Company's debt as a
percentage of total  capitalization  (the total of debt,  minority interests and
equity) was 36.2%,  compared with 33.7% at December 31, 1998.  Consolidated debt
at September 30, 1999,  including the debt of SPCC,  none of which is guaranteed
by Asarco, was $1,131.5 million,  compared with $1,047.6 million at December 31,
1998.  Additional  indebtedness  permitted under the terms of the Company's most
restrictive  covenants  was $439.3  million at September  30, 1999. In addition,
under the most restrictive covenants of SPCC's loan agreements,  SPCC would have
been permitted additional indebtedness of $892.8 million at September 30, 1999.

The Company expects that it will meet its cash  requirements for 1999 and beyond
from internally  generated  funds,  cash on hand and from  borrowings  under its
revolving credit agreements or from additional debt or equity financing.

The Company paid dividends to common stockholders of $2.0 million or 5 cents per
share in the third quarter of 1999 and $7.9 million or 20 cents per share in the
third  quarter of 1998.  In  addition  SPCC paid  dividends  of $0.8  million to
minority  interests  in the third  quarter of 1999 and $4.2 million in the third
quarter of 1998. At September 30, 1999, the Company had 39,921,000 shares issued
and outstanding, compared with 39,652,000 at December 31, 1998.

Impact of New  Accounting  Standards:  In June 1998,  the  Financial  Accounting
Standards  Board  (FASB)  issued  SFAS  No.  133,   "Accounting  for  Derivative
Instruments and Hedging Activities." This statement  establishes  accounting and
reporting   standards  for  derivative   instruments  and  hedging   activities.
Initially,  the  statement was to be effective in fiscal years  beginning  after
June 15,  1999.  In June 1999,  the FASB  issued  SFAS No. 137 which  defers the
effective  date of SFAS No. 133 to fiscal years  beginning  after June 15, 2000.
The Company is currently assessing the impact of SFAS No.133.


Year 2000:  The Company has  implemented  a three phase  program to identify and
resolve Year 2000 (Y2K) issues  related to the integrity and  reliability of its
computerized  information  systems as well as computer  systems  embedded in its
production  processes.  Phase one of the  Company's  program  which  involved an
assessment of Y2K compliance of the Company's  computerized  information systems
and embedded  computer  systems has been completed.  In phase two of the program
the Company is modifying or replacing all non-compliant systems. As of September
30, 1999,  substantially all of the Company's systems,  including SPCC's systems
have been  tested and are Y2K  compliant.  The Company  continues  to test these
systems where appropriate.

As of September 30, 1999,  the Company had spent  approximately  $3.4 million in
addition to its normal internal information  technology costs in connection with
its Y2K program. Phase three of the program, which involved the Company and SPCC
sending detailed information  requests to their principal  customers,  suppliers
and service providers to determine the status of their Y2K compliance,  has been
completed.  The Company and SPCC received confirmations indicating that most are
or will be Y2K  compliant.  The Company and SPCC will have further  contact with
those who have not  responded  or have  indicated  further  work was required to
achieve  Y2K  compliance,  but none are  critical  to the  Company's  or  SPCC's
operations.



                                       19
<PAGE>




Among other  things,  the Company's  operations  depend on the  availability  of
utility services,  principally electricity, and reliable performance by domestic
and international  transportation  services. A substantial  disruption in any of
these  services  due to  providers  of these  services  failing to  achieve  Y2K
compliance would have an adverse impact on the Company's financial results,  the
significance of which would depend on the length and severity of the disruption.
The Company has identified alternatives and has completed a contingency plan for
each of its  principal  operations.  The purpose of the  contingency  plan is to
identify possible  alternatives which could be used in the event of a disruption
in the  delivery of  essential  goods or services  and to minimize the effect of
such a disruption.

The above estimates and conclusions contain  forward-looking  statements and are
based on  management's  best  estimate of future  events.  Actual  results could
differ  materially  depending on the availability of resources and the Company's
ability to identify and correct all Y2K issues.

Cautionary  Statement:  Forward-looking  statements  in this report and in other
Company statements include statements  regarding expected  commencement dates of
mining or metal  production  operations,  projected  quantities  of future metal
production,  anticipated  production rates,  operating  efficiencies,  costs and
expenditures as well as projected demand or supply for the Company's products.

Actual  results could differ  materially  depending  upon factors  including the
availability  of  materials,   equipment,  required  permits  or  approvals  and
financing, the occurrence of unusual weather or operating conditions, lower than
expected  ore  grades,  the  failure of  equipment  or  processes  to operate in
accordance with specifications,  labor relations, environmental risks as well as
political  and economic  risk  associated  with foreign  operations.  Results of
operations are directly  affected by metals prices on commodity  exchanges which
can be volatile.




                                       20
<PAGE>



PricewaterhouseCoopers LLP




                        REPORT OF INDEPENDENT ACCOUNTANTS



To the Board of Directors of
ASARCO Incorporated:


We have reviewed the condensed consolidated balance sheet of ASARCO Incorporated
and Subsidiaries as of September 30, 1999 and the related condensed consolidated
statements of earnings and cash flows for the three month and nine month periods
ended  September  30,  1999  and  1998.  These  financial   statements  are  the
responsibility of the Company's management.

We conducted our review in accordance with standards established by the American
Institute  of  Certified  Public  Accountants.  A review  of  interim  financial
information consists principally of applying analytical  procedures to financial
data and making  inquiries of persons  responsible  for financial and accounting
matters. It is substantially less in scope than an audit conducted in accordance
with  generally  accepted  auditing  standards,  the  objective  of which is the
expression of an opinion  regarding the financial  statements  taken as a whole.
Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material  modifications that should
be made to the accompanying interim condensed  consolidated financial statements
for them to be in conformity with generally accepted accounting principles.

We have  previously  audited,  in accordance  with generally  accepted  auditing
standards,  the  consolidated  balance  sheet as of  December  31,  1998 and the
related consolidated statements of income, retained earnings, and cash flows for
the year then ended (not  presented  herein) and in our report dated January 26,
1999,  we  expressed  an  unqualified  opinion on those  consolidated  financial
statements.  In our  opinion,  the  information  set  forth in the  accompanying
condensed  consolidated balance sheet as of December 31, 1998, is fairly stated,
in all material  respects,  in relation to the  consolidated  balance sheet from
which it has been derived.




                                                  PricewaterhouseCoopers LLP




New York, New York
November 12, 1999





                                       21
<PAGE>



                           PART II - OTHER INFORMATION

Item 1 - Legal Proceedings


1. Asarco and two of its  wholly-owned  subsidiaries,  Lac  d'Amiante du Quebec,
Ltee  ("LAQ")  and Capco  Pipe  Company,  Inc.  ("Capco"),  have  been  named as
defendants,  among numerous other  defendants,  in additional  asbestos personal
injury lawsuits of the same general nature as the lawsuits reported on Form 10-K
for 1998 and prior  years and Form 10-Q for the  first and  second  quarters  of
1999.  As of September  30,  1999,  there were  pending  against  Asarco and its
subsidiaries  1,377  lawsuits  brought  by 5,950  primary  and  1,036  secondary
plaintiffs in 27 states seeking substantial damages for personal injury or death
allegedly caused by exposure to asbestos. As of September 30, 1999, LAQ, Asarco,
and Capco have settled or have been  dismissed  from a total of 10,737  asbestos
personal injury  lawsuits  brought by  approximately  114,888 primary and 64,562
secondary plaintiffs.

2. With  respect to the  citizens'  suit  brought  against the Company  alleging
violations of the Clean Water Act ("CWA") and Resource Conservation and Recovery
Act ("RCRA") at the Company's former Omaha plant, reported on Form 10-K for 1998
and prior years, in April 1999 the court entered summary judgment dismissing the
CWA  claims.  A trial of the RCRA  claims was held in June  1999,  and the court
rendered a verdict in favor of the Company.  Plaintiffs  have  appealed only the
summary judgment.

3. With  respect to the class  action  brought  against the Company on behalf of
persons residing near the Company's Globe plant in Denver, Colorado, reported on
Form 10-K for 1998,  in August 1999,  the Company and the class  representatives
executed a settlement agreement which is subject to approval by the court.


4. With  respect to the consent  decree  among the  Company,  the United  States
Department  of  Justice,  the  United  States  Environmental  Protection  Agency
("EPA"),  and the Texas Natural Resources  Conservation  Commission  reported on
Form 10-Q for the first and second quarters of 1999, in October 1999, the decree
was  approved  by the  federal  district  court.  Two of the  plaintiffs  in the
lawsuits  arising out of the  operations of the Company's  former Corpus Christi
zinc  refinery  and  the  operations  of  its  subsidiaries  Encycle,  Inc.  and
Encycle/Texas,  Inc.,  reported  on Form 10-K for 1998,  have  filed a motion to
intervene in the consent decree  proceedings in the federal district court. They
ask the court to reconsider its order  approving the decree and for monetary and
other relief.  The Company and the U.S.  Government are opposing the motion. The
court  previously  rejected these same  plaintiffs'  request to intervene in the
proceedings.

5. In September  1999,  the Company was named along with 16 other  defendants in
two  complaints  filed in state court in Maryland.  One  complaint  was filed on
behalf of eight minors  alleging  personal injury due to exposure to lead in the
form of  lead-based  paint and  tetraethyl  lead in  gasoline.  Plaintiffs  seek
compensatory  and punitive  damages.  The other case is a purported class action
against the same defendants  brought on behalf of owners and occupants of single
family houses in Maryland built before 1979. Plaintiffs seek to recover the cost
of detecting,  monitoring, and, where necessary, removing residential lead-based
paint, and compensatory and punitive damages.




                                       22
<PAGE>



6. The Company and its directors  have been named in one purported  class action
in Delaware  Chancery  Court and four  purported  class  actions in the Chancery
Division of the Superior Court of New Jersey allegedly on behalf of shareholders
who  allege  that  the  directors   breached  their  fiduciary   duties  to  the
shareholders  by refusing to consider a tender offer from a subsidiary of Phelps
Dodge  Corporation.  Phelps  Dodge,  in its  capacity  as a  shareholder  of the
Company,  filed similar actions in both Delaware and New Jersey.  The plaintiffs
in all of the actions seek to compel the  directors to consider the Phelps Dodge
tender offer as well as money  damages and  attorneys  fees.  Subsequent  to the
filing of the  lawsuits,  an amended  Phelps  Dodge  tender was  terminated  and
withdrawn and the Company  agreed to a merger offer at a higher price from Grupo
Mexico, S.A. de C.V.

7. On November 9, 1999, an action was  commenced  against the Company in Federal
court in the  Southern  District  of New York by Cyprus  Amax  Minerals  Company
("Cyprus"),  a subsidiary  of Phelps Dodge  Corporation  ("Phelps  Dodge").  The
Company and Cyprus were formerly parties to a Merger  Agreement,  dated July 15,
1999,  and  amended  September  27, 1999 (the  "Cyprus  Merger  Agreement").  On
September 30, 1999,  Cyprus  terminated the Cyprus Merger  Agreement in order to
enter into a merger  agreement  with Phelps  Dodge and paid Asarco a $45 million
termination fee. Phelps Dodge subsequently acquired control of and a substantial
majority of the common shares of Cyprus. On October 5, 1999, the Company entered
into a merger agreement with Phelps Dodge (the "Phelps Dodge Merger Agreement").
On October 25, 1999, Asarco  terminated the Phelps Dodge Merger Agreement,  paid
Phelps Dodge a $30 million  termination fee and entered into a merger  agreement
with Grupo  Mexico,  S.A. de C.V. The action seeks  damages of not less than $90
million,  plus attorneys' fees and interest,  based on claims allegedly  arising
from the  foregoing  series of events.  Asarco  intends  to defend  the  lawsuit
vigorously.



                                       23
<PAGE>




Item 6 - Exhibits and Reports on Form 8-K

     (a)  The following Exhibits are filed as part of this report:

          Exhibits

          2.   Plan of Acquisition, Reorganization,  Arrangement, Liquidation or
               Succession

               Agreement and Plan of Merger, dated as of October 25, 1999, among
               ASARCO  Incorporated,  Grupo  Mexico,  S.A.  de  C.V.  and  ASMEX
               Corporation.  (Filed as an Exhibit to the Company's Amendment No.
               3 to Schedule  14D-9  filed on October 25, 1999 and  incorporated
               herein by  reference.)  The  Registrant  agrees to furnish to the
               Commission, upon request, a copy of any omitted schedules.

          4.   Instruments  Defining the Rights of Security  Holders,  including
               Debentures

               (a)  Amendment Number Three, dated as of July 15,1999,  to Rights
                    Agreement   dated  as  of  July  26,1989,   between   ASARCO
                    Incorporated  and The Bank of New  York,  as  Rights  Agent.
                    (Filed as an Exhibit  to the  Company's  Amendment  No. 3 to
                    Form 8-A filed on July 22, 1999 and  incorporated  herein by
                    reference.)

               (b)  Amendment  Number One,  dated as of July 15, 1999, to Rights
                    Agreement,  dated as of January  28,  1998,  between  Asarco
                    Incorporated  and The Bank of New  York,  as  Rights  Agent.
                    (Filed as an Exhibit  to the  Company's  Amendment  No. 3 to
                    Form 8-A filed on July 22, 1999 and  incorporated  herein by
                    reference.)

               (c)  Amendment Number Two, dated as of October 5, 1999, to Rights
                    Agreement,  dated as of January  28,  1998,  between  ASARCO
                    Incorporated  and The Bank of New  York,  as  Rights  Agent.
                    (Filed as an Exhibit  to the  Company's  Amendment  No. 4 to
                    Form 8-A filed on November 8, 1999 and  incorporated  herein
                    by  reference.)

               (d)  Amendment  Number  Three,  dated as of October 25, 1999,  to
                    Rights  Agreement,  dated as of January  28,  1998,  between
                    ASARCO  Incorporated  and The Bank of New  York,  as  Rights
                    Agent. (Filed as an Exhibit to the Company's Amendment No. 4
                    to Form  8-A  filed on  November  8,  1999 and  incorporated
                    herein by reference.)


          10.  Material Contracts

                    (a)Supplemental  Pension  Plan  for  Designated   Mid-Career
                       Officers, as amended through October 8, 1999

                    (b)Compensation Deferral Plan, as amended through October 8,
                       1999

                    (c)Supplemental  Retirement Plan, as amended through
                       October 8, 1999




                                       24
<PAGE>



          12.  Statement re  Computation  of  Consolidated  Ratio of Earnings to
               Fixed  Charges and Combined  Fixed  Charges and  Preferred  Share
               Dividend Requirements

          15.  Independent Accountants' Awareness Letter


     (b)    Reports on Form 8-K:

          1.   Report on Form 8-K  filed on July 20,  1999,  containing  a press
               release  dated July 15, 1999,  announcing  an  agreement  between
               Cyprus  Amax  Minerals  Company and ASARCO  Incorporated  for the
               combination of both companies in a merger-of-equals transaction.

          2.   Report on Form 8-K filed on September 7, 1999,  enclosing a joint
               press  release of ASARCO  Incorporated  and Cyprus Amax  Minerals
               Company dated September 7, 1999, urging  shareholders to vote for
               their proposed merger on September 30, 1999.

          3.   Report on Form 8-K  filed  September  20,  1999,  announcing  the
               filing of a lawsuit by ASARCO  Incorporated  against Phelps Dodge
               Corporation in the U.S. District Court,  Southern District of New
               York,  charging  that  Phelps  Dodge  Corporation's   unsolicited
               takeover attempt of ASARCO  Incorporated and Cyprus Amax Minerals
               Company  violates the antitrust laws of the United States. A copy
               of the complaint and related press release are also enclosed.

          4.   Report on Form 8-K filed September 28, 1999,  enclosing Amendment
               No.1 dated September 27, 1999, amending the agreement and Plan of
               Merger,   dated  as  of  July  15,  1999,   among  ASARCO  Cyprus
               Incorporated,   ACO  Acquisition  Corporation,   CAM  Acquisition
               Corporation,   ASARCO   Incorporated  and  Cyprus  Amax  Minerals
               Company,  enabling the parties to explore  alternatives  to their
               Merger  Agreement  until  October 5, 1999.  A copy of the related
               press release is also enclosed.

          5.   Report on Form 8-K filed October 6, 1999,  enclosing an Agreement
               and Plan of Merger  between  ASARCO  Incorporated,  Phelps  Dodge
               Corporation  and AAV  Corporation  dated October 5, 1999, and the
               related press release.

          6.   Report on Form 8-K  filed  October  7,  1999,  enclosing  a press
               release issued by Southern Peru Copper  Corporation dated October
               7, 1999, which announces  significant new  mineralization  at its
               Toquepala Mine.




                                       25
<PAGE>





                                   SIGNATURES



Pursuant  to the  requirement  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.


                                                     ASARCO Incorporated
                                                        (Registrant)




Date:   November 12, 1999                            /s/ William Dowd
                                                     William Dowd
                                                     Vice President and
                                                     Chief Financial Officer



Date:   November 12, 1999                            /s/ Edward J. Melando
                                                     Edward J. Melando
                                                     Controller




                                       26
<PAGE>






<TABLE>
<CAPTION>
                                  Exhibit Index

Exhibits                                                                             Page No.

<S>                                                                                  <C>

     2.   Plan  of  Acquisition,  Reorganization,  Arrangement,  Liquidation  or
          Succession

          Agreement  and Plan of Merger,  dated as of October  25,  1999,  among
          ASARCO Incorporated, Grupo Mexico, S.A. de C.V. and ASMEX Corporation.
          (Filed as an  Exhibit to the  Company's  Amendment  No. 3 to  Schedule
          14D-9 filed on October 25, 1999 and incorporated herein by reference.)
          The Registrant  agrees to furnish to the Commission,  upon request,  a
          copy of any omitted schedules.

     4.   Instruments  Defining  the  Rights  of  Security  Holders,   including
          Debentures

          (a)  Amendment  Number  Three,  dated as of July  15,1999,  to  Rights
               Agreement dated as of July 26,1989,  between ASARCO  Incorporated
               and The Bank of New York, as Rights  Agent.  (Filed as an Exhibit
               to the  Company's  Amendment  No. 3 to Form 8-A filed on July 22,
               1999 and incorporated  herein by reference.)

          (b)  Amendment  Number  One,  dated as of July  15,  1999,  to  Rights
               Agreement,   dated  as  of  January  28,  1998,   between  Asarco
               Incorporated and The Bank of New York, as Rights Agent. (Filed as
               an Exhibit to the Company's  Amendment No. 3 to Form 8-A filed on
               July  22,  1999  and  incorporated   herein  by  reference.)

          (c)  Amendment  Number  Two,  dated as of October  5, 1999,  to Rights
               Agreement,   dated  as  of  January  28,  1998,   between  ASARCO
               Incorporated and The Bank of New York, as Rights Agent. (Filed as
               an Exhibit to the Company's  Amendment No. 4 to Form 8-A filed on
               November  8,  1999 and  incorporated  herein by  reference.)

          (d)  Amendment  Number Three,  dated as of October 25, 1999, to Rights
               Agreement,   dated  as  of  January  28,  1998,   between  ASARCO
               Incorporated and The Bank of New York, as Rights Agent. (Filed as
               an Exhibit to the Company's  Amendment No. 4 to Form 8-A filed on
               November 8, 1999 and incorporated herein by reference.)


     10.  Material Contracts

          (a)  Supplemental Pension Plan for Designated  Mid-Career  Officers,
               as amended through October 8, 1999                                    28-36

          (b)  Compensation  Deferral Plan, as amended  through  October 8, 1999     37-43


          (c)  Supplemental  Retirement Plan, as amended through October 8, 1999     44-50


     12.  Statement re  Computation of  Consolidated  Ratio of Earnings to Fixed
          Charges and  Combined  Fixed  Charges  and  Preferred  Share  Dividend
          Requirements                                                               51

     15.  Independent Accountants' Awareness Letter                                  52
</TABLE>



                                       27
<PAGE>




Exhibit 10(a)
                               ASARCO Incorporated
                            SUPPLEMENTAL PENSION PLAN
                       FOR DESIGNATED MID-CAREER OFFICERS
                      (As Amended through October 8, 1999)

     WHEREAS,  the Organization and Compensation  Committee (the "Committee") of
the Board of Directors of ASARCO  Incorporated  (the  "Company" or "Asarco") has
been advised by its independent compensation consultants that executive officers
who join or have joined the Company in  mid-career,  and  subsequently  serve as
vice  president  or  higher  rank  for ten or more  years,  usually  do not have
sufficient  time before  retirement to accrue  benefits under  existing  pension
plans of the Company  adequate to their needs or  appropriate  to reflect  their
experience or employment  responsibilities,  and that a supplemental  retirement
benefits plan for such persons should be adopted to remove these inequities,  to
encourage the continued association of these executives with the Company, and to
assure that the Company is able to attract and retain  executives  with valuable
prior experience; and

     WHEREAS,  the Committee has  recommended  the adoption of, and the Board of
Directors   has  approved  and  decided  to  adopt,   the  ASARCO   Incorporated
Supplemental  Pension Plan for  Designated  Mid-Career  Officers (the "Plan") to
permit the Company to provide  supplemental  retirement benefits to key officers
identified  by the Committee who  otherwise  would receive  retirement  benefits
which would not reflect their experience prior to employment with the Company or
would not be appropriate for the position of responsibility which they hold with
the Company.

     NOW,  THEREFORE,  the Company hereby adopts the Plan effective November 24,
1987.

1.   DEFINITIONS.

     1.1  Benefit Commencement Date. Except as provided in Sections 3.1, 3.3 and
          6, the date on which  benefits  are  scheduled  to commence  under the
          Pension Plan.

     1.2  Board. The Board of Directors of ASARCO Incorporated.

     1.3  Company. ASARCO Incorporated.

     1.4  Compensation. Compensation shall be as defined under the Pension Plan.

     1.5  Committee. The Organization and Compensation Committee of the Board.

     1.6  Disability.  Permanent and total  disability as defined in the Pension
          Plan.

     1.7  Executive.  An officer of the Company holding a rank of Vice President
          or higher who is determined by the Committee in its sole discretion to
          be a person who when first  employed by the Company  already had prior
          business or professional  experience which was valuable to the Company
          and  relevant to the  position  for which he was  employed.  This term
          shall  also  include  the  Executive's  spouse  in the  event  benefit
          payments, as described  hereinafter,  have commenced under the Plan to
          such spouse.  The terms Executive or Participant  shall have identical
          meanings in this Plan.

     1.8  Final Compensation Rate. The average of the sixty highest  consecutive
          monthly amounts of the Executive's  basic  compensation  and incentive
          bonuses,  in the one hundred twenty months preceding his retirement or
          termination of employment prior to age 65.

     1.9  Pension Plan.  The Retirement  Benefit Plan for Salaried  Employees of
          ASARCO Incorporated.





                                       28
<PAGE>





     1.10 Primary Insurance Amount. The Executive's Primary Insurance Amount for
          social security  purposes,  determined on the basis of the Executive's
          actual  compensation  with  respect  to years of  employment  with the
          Company.  With  respect  to  years  of  employment,  if any,  prior to
          employment  with  the  Company,   the  Committee  shall  estimate  the
          Executive's income that is treated as wages for purposes of the Social
          Security  Act.  If the  Executive's  employment  with the  Company  is
          terminated  prior  to age  65,  for  years  following  termination  of
          employment,  it shall be  assumed  for  purposes  of  calculating  the
          Primary  Insurance Amount that the Executive earns  compensation so as
          to accrue maximum Social Security benefits.

2.   SUPPLEMENTAL  BENEFIT.  All  supplemental  benefits under the Plan shall be
     determined according to this Section 2.

          2.1 Net  Annual  Benefit.  The  base  annual  benefit  payable  to the
          Executive on or after age 65 shall be  determined by  multiplying  his
          annualized Final Compensation Rate by 0.55 (fifty-five percent).  This
          amount  shall be reduced  by the sum of (i) the  annual  amount of any
          benefits  accrued as of the  Benefit  Commencement  Date  (other  than
          benefits  attributable to pre- or post-tax  contributions  made by the
          Executive)  which are  payable,  which  have  been paid or which  will
          become  payable  to the  Executive  from any  defined  benefit,  money
          purchase  or  other  pension   benefit  plan  (whether   qualified  or
          nonqualified)  maintained by the Company or any other  employer at any
          time,  (ii) the annual amount of any benefits  payable,  paid or to be
          paid on account of Disability  under a plan  maintained by the Company
          or any other  employer  at any time,  and  (iii)  his  annual  Primary
          Insurance  Amount.  In  the  event  the  Executive  has  received,  is
          receiving,  or is  scheduled  to receive  benefits  from  another such
          pension  or  disability  plan in any form  other  than a  single  life
          annuity (including a single sum distribution or a variable annuity) or
          at a time  other than when  benefits  commence  under  this Plan,  the
          benefits  to be taken into  account  under (i) and (ii) above shall be
          determined in good faith by the Company based on actuarial assumptions
          and factors reasonably  utilized under the Pension Plan as of the date
          of determination,  or to the extent such factors or assumptions do not
          contemplate a particular situation which arises under this Plan, based
          upon the factors applied by the Pension Benefit  Guaranty  Corporation
          for  purposes  of  determining  the  present  value of  benefits  upon
          termination  of a plan  with  insufficient  assets.  In the event of a
          controversy concerning the calculation of benefits described in (i) or
          (ii) above,  the Committee shall in good faith determine the amount of
          benefits  pursuant  to Section 5 of the Plan.  The  benefit  remaining
          after this  reduction  shall  constitute  the  Executive's  Net Annual
          Benefit.

          2.2 Form and Timing of Payment.

               (a) Except as otherwise  provided  herein,  the benefit  shall be
               payable to the Executive in a lump sum,  payable on January 15 of
               the year immediately following the Benefit Commencement Date, and
               calculated  as  set  forth  in  Section  2.3.  Alternatively,  an
               Executive  may elect,  at least  twelve (12) months  prior to his
               Benefit  Commencement  Date,  to receive  all or a portion of the
               benefit payable hereunder on such Benefit  Commencement  Date. In
               the event of a Change of Control (as  defined  below) the benefit
               shall be payable as soon as  practicable  following the Change of
               Control  and the lump sum  shall be  calculated  as set  forth in
               Sections 2.3 and 6 below.



                                       29
<PAGE>




               (b) An Executive may elect prior to the Benefit Commencement Date
               to defer (for a period not to exceed  twenty  (20)  years) all or
               part (but not less than  $50,000) of a lump sum payment under the
               Plan (the  "Deferral  Amount") to a future date or to convert the
               Deferral  Amount to a series of scheduled  installments.  Such an
               election  must be made at least  twelve (12) months  prior to the
               date payment  would be made under Section  2.2(a),  except in the
               event of termination  by reason of Disability,  in which case the
               election   may  be  made  at  any  time  prior  to  the   Benefit
               Commencement   Date.   Any  such   election  may  be  amended  to
               accelerate,  further  defer  (except as otherwise  provided  with
               respect to a Surviving Spouse in Section 2.2(j)) or to change the
               form of payment of all or part of the Deferral Amount, if amended
               in accordance with the provisions of Section 2.2(h). The Deferral
               Amount shall be deemed invested,  as of the Benefit  Commencement
               Date, in accordance  with an election to be made by the Executive
               under  rules  established  by the  Committee.  The  Company  will
               attempt  to follow  the  Executive's  elections,  but will not be
               required  to  do  so.   Regardless  of  whether  the  Executive's
               elections  are  followed,  the Deferral  Amount shall be credited
               with deemed earnings,  gains, losses, expenses and changes in the
               fair market value of such  Deferral  Amount as if the Company had
               followed such investment designations.

               (c) The  election  of a  deemed  investment  option  is the  sole
               responsibility  of each Executive.  Neither the Company,  nor the
               Committee,  nor any trustee of any trust that may be  established
               in connection with the Plan are authorized or permitted to advise
               (or shall have any liability  with respect to) an Executive as to
               the  election  of any option or the manner in which his  Deferral
               Amount  shall be deemed to be  invested.  Except for an Executive
               who elects  annuity  payments  pursuant to  paragraph  (e) below,
               absent an election to defer pursuant to paragraph (b) above,  all
               unpaid benefit amounts shall be deemed invested as of the Benefit
               Commencement  Date in the Vanguard  Money Market Reserve -- Prime
               Portfolio (or other  comparable money market fund selected by the
               Company),  until paid to the Executive  pursuant to paragraph (a)
               above.

               (d)  All  deemed   investments  of  Deferral  Amounts   including
               provisions  for transfers  among  investment  vehicles will be in
               accordance with rules established by the Committee.

               (e)  Notwithstanding  paragraphs (a) and (b) above,  an Executive
               may elect in writing  to receive  single  life  annuity  payments
               under the Plan at approximately  the same time as payments are to
               be made to the Executive under the Pension Plan. Such an election
               must be made at least  twelve  (12)  months  prior to the Benefit
               Commencement  Date,  except in the event of termination by reason
               of Disability,  in which case the election may be made at anytime
               prior to the Benefit  Commencement Date. Any such election may be
               changed,  provided  that no such  change  shall be  given  effect
               unless it is made in writing at least twelve (12) months prior to
               the Benefit Commencement Date.



                                       30
<PAGE>




               (f) At any time subsequent to an Executive's Benefit Commencement
               Date,  an  Executive  who made an  election  pursuant  to Section
               2.2(b) may  request a payment of all or a portion of the value of
               his  Deferral  Amount not yet  payable.  Such a request  shall be
               approved by the Committee  only upon a finding that the Executive
               has suffered a severe financial  hardship which has resulted from
               events beyond the Executive's  control  ("Hardship  Event"),  and
               only in the amount  reasonably  needed to satisfy  such  Hardship
               Event.  Whether a Hardship Event has occurred shall be determined
               in accordance with Treasury Regulation Sections 1.457-2(h)(4) and
               (5).  In the event  such a payment  is  approved,  payment of the
               approved amount from the Deferral Amount shall be made as soon as
               practicable to the Executive.

               (g) At any time subsequent to an Executive's Benefit Commencement
               Date,  an  Executive  who made an  election  pursuant  to Section
               2.2(b) may elect the  acceleration of payment of all or a portion
               of the value of any Deferral  Amount not yet payable subject to a
               6%  penalty of the amount  accelerated.  Payment of such  amount,
               less such penalty  (which shall be  forfeited),  shall be paid in
               cash in a single lump sum as soon as practicable.

               (h) At any time subsequent to the Benefit  Commencement  Date, an
               Executive who has made an election pursuant to Section 2.2(b) may
               file an  election  to amend such  prior  election  affecting  any
               Deferral  Amount  payable at least 12 months  subsequent  to such
               amendment,  either to accelerate,  further defer or to change the
               form  of  payment  of  such  Deferral  Amount,  provided  no such
               election  may  accelerate  any payment to a date  earlier than 12
               months from the date of  amendment.  The amended  form of payment
               may be a single sum payment of any  Deferral  Amounts not yet due
               and payable or annual  installments of any such Deferral Amounts,
               or a  combination  thereof,  provided no payments may be extended
               longer than the time specified in Section 2.2(b).

               (i) Upon the death of an  Executive  who has  elected  an annuity
               form of payment pursuant to Section 2.2(e) above, the Executive's
               surviving  spouse,  if  any,  at the  date of  death  ("Surviving
               Spouse") shall receive 50% of the Net Annual Benefit described in
               Section 2.1 above and as adjusted as provided in Section  3.3, if
               applicable, for life.

               (j) Upon the  death of an  Executive  in all  other  events,  the
               Executive's  Surviving Spouse,  shall receive any benefits due to
               the Executive  under this Plan as adjusted as provided in Section
               3.3,  at the same time as  provided  under  paragraph  (a) above,
               except a valid election  under  paragraph (b) above shall survive
               the death of the Executive.  In such case,  the Surviving  Spouse
               shall  have the same  rights  as are  provided  to the  Executive
               pursuant to this Section 2 except that further deferrals will not
               be   permitted.   The   Executive   may  designate  a  contingent
               beneficiary  by  giving  written  notice to the  Company.  If the
               Executive has no Surviving Spouse, any remaining benefits payable
               shall  be  paid as soon as  practicable  in a  single  sum to his
               contingent beneficiary, or if none, to his estate.


                                       31
<PAGE>




               (k) In the case of any payment  pursuant  to this  Section 2.2 of
               less than the total  value of a Deferral  Amount,  the  Committee
               will make reasonable efforts to follow any instructions  received
               from the Executive  indicating from which deemed  investments any
               such   distribution   is  first  to  come.   In  the  absence  of
               instructions,  distributions  shall be made on a pro  rata  basis
               from  all  the  deemed  investments   currently  elected  by  the
               Executive pursuant to Section 2.2(b) with respect to the Deferral
               Amount.

     2.3  Calculation  of Lump  Sum.  The  amount of the lump sum  described  in
     Section 2.2(a) shall be the present value of the benefits payable under the
     Plan,  determined  by using the  following  actuarial  assumptions  for the
     Executive:

               (a)  Discount  Rate.  The  discount  rate used in  computing  the
               present value of benefits  payable under the Plan is the yield on
               10-year treasury notes on the Benefit  Commencement Date, or if a
               legal holiday,  the first business day immediately  following the
               Benefit Commencement Date. However, at any time during a thirteen
               month  period  ending with the  Benefit  Commencement  Date,  the
               Executive  may  designate  an  alternative  date for  fixing  the
               interest rate used to calculate the present value of the lump sum
               distribution.  The designation  must be in writing,  and the date
               designated  must be within  seven  calendar  days of the date the
               designation  is received by the Company.  The  designation of the
               discount  rate,  once made,  may not be changed  for any  reason.
               Notwithstanding  the  foregoing,  if an Executive  designates  an
               Alternative  Date  under  this  subsection  in  contemplation  of
               commencing benefits under the Pension Plan, such designation will
               survive a subsequent postponement of the commencement of benefits
               under the Pension Plan by such  Executive,  except  that,  if the
               yield on 10-year treasury notes on the Benefit  Commencement Date
               is higher than on the Alternative  Date, the yield on the Benefit
               Commencement Date will be used.

               (b)  Mortality  Table.  The  Mortality  Table  used  will be that
               contained in U.S. Internal Revenue Service Revenue Ruling 95-6 or
               any  succeeding  Revenue  Ruling  issued by the Internal  Revenue
               Service for use in applying  the  provisions  of sections 415 and
               417(e) of the Internal Revenue Code.

     2.4  Eligibility  for  Benefit.  Except as provided  under  Section 3.3 and
     Section 6 no benefit shall be payable unless the Executive  shall have been
     in the employ of the Company as a Vice  President or officer of higher rank
     for a period of at least 10 years on his Benefit Commencement Date.

3.   TERMINATION  OF  EMPLOYMENT  PRIOR TO AGE 65. If the  Executive  terminates
     employment  prior to age 65, for any reason,  his rights and benefits under
     the Plan will be determined in accordance with this Section 3.

     3.1 Benefit Commencement.  Except as provided in Section 6 upon a Change of
     Control,  the  Benefit  Commencement  Date shall be as defined in Section 1
     (and the Executive shall have no right to elect any other date);  provided,
     however,  that at the option of the  Company,  the Company may require that
     the Benefit  Commencement  Date shall be the last day of the month in which
     the Executive  reaches his 65th  birthday,  if later than the date benefits
     would  otherwise  commence  hereunder.  The option  provided to the Company
     herein shall not be exercised unreasonably or in bad faith.


                                       32
<PAGE>




     3.2 Benefit  Adjustment.  If the Executive  terminates  prior to age 65 for
     reasons  other than death or  Disability, his Net Annual  Benefit shall be
     reduced by 33/100 of one percent  (0.0033) for each month such  termination
     precedes the month in which he attains age 65.

     3.3 Death and  Disability.  If the  employment  of the  Executive  with the
     Company  terminates  prior to age 65 but  after  completion  of at least 10
     years service with the Company, whether or not as an officer, due to reason
     of Disability, the Executive will be eligible for immediate commencement of
     benefit  payments as provided in Section 2.  Further,  no  reduction in Net
     Annual  Benefits will be made under Section 3.2 above. If the employment of
     the  Executive  with  the  Company  terminates  prior  to age 65 but  after
     completion of at least 10 years service with the Company, whether or not as
     an officer, for the reason of death, the Executive's Surviving Spouse shall
     be eligible for a Net Annual  Benefit equal to 50% of the  Executive's  Net
     Annual Benefit as provided in Section 2.2 above,  except that if the spouse
     is more than 60 months younger than the Executive, such spouse's Net Annual
     Benefit  shall be  reduced  by 1/12 of 1% for each full  month by which the
     spouse  is more  than 60  months  younger  than  the  Executive;  provided,
     however,  that in  determining  the  amount of such  survivor  benefit,  no
     reduction shall be made pursuant to Section 3.2 for the early  commencement
     of benefits; and further provided,  however, such benefits shall be paid in
     accordance with Section 2.2 above.

     3.4 Company Consent. Except for termination of employment under Section 3.3
     above or in the event of a Change of Control  (as  defined  below),  if the
     Executive  voluntarily  terminates employment with the Company prior to age
     65 without the express,  written consent of the Company,  all rights of the
     Executive  to  benefits  hereunder  shall  thereupon  terminate;  it  being
     understood  that  if  the  Executive's  employment  is  terminated  at  the
     Company's  request,  no benefits  hereunder shall be forfeited  pursuant to
     this Section 3.4.

4.   INDEMNIFICATION.  The Company shall pay any and all legal fees and expenses
     incurred by the  Executive in seeking to obtain or enforce any rights under
     the Plan,  provided  that the  Executive  is  successful  in  obtaining  or
     enforcing such rights.

5.   ADMINISTRATION.  Issues  relating  to the  administration  of the  Plan and
     payment of benefits  thereunder  shall be  determined  in good faith by the
     Committee pursuant to the terms of the Plan.


                                       33
<PAGE>



6.       CHANGE OF CONTROL.

          (a)  Notwithstanding any other provision of this Plan, in the event of
          a Change of  Control  (as  defined  below),  no  person  that is not a
          Participant  in the Plan  immediately  prior to such Change of Control
          shall be permitted to be a Participant  under the Plan  following such
          Change of Control.  Upon and after a Change of Control,  this Plan may
          not  be  amended,  modified  or  terminated  if  any  such  amendment,
          modification  or  termination   would  adversely  affect  any  accrued
          benefits of a  Participant  or his or her rights with  respect to such
          accrued benefit in the Plan,  unless any such amendment,  modification
          or  termination  is consented to in writing by all such  Participants.
          Upon a Change of Control, benefits under the Plan shall vest at a rate
          of ten  percent  (10%)  for each year the  Executive  served as a Vice
          President or higher  (prorated for partial years) and the requirements
          of Sections 2.4, 3.1 and 3.4 shall be deemed waived.  Upon a Change of
          Control,  the value of the benefits  payable to an Executive under the
          Plan will be  determined  assuming,  for purposes of applying  Section
          3.2,  that  the  Executive  terminated  on the date of the  Change  of
          Control at age 55 or his actual age, if older,  and shall be paid in a
          single cash lump sum to the  Executive  immediately,  provided that in
          the case of an  Executive  who has not  attained  age 55,  such amount
          shall be discounted to reflect the  commencement  of benefits prior to
          age 55 using the assumptions provided in Section 2.3. Upon a Change of
          Control  Executives  who have  designated an Investment  Manager under
          Section 15 of the  Supplemental  Retirement  Plan of the  Company  are
          permitted  to  request a  distribution  of assets in kind in lieu of a
          cash lump sum.

          (b) For purposes of this Plan,  a "Change of Control"  shall be deemed
          to have occurred if:

               (1) any  "person",  as such  term is used in  Sections  13(d) and
               14(d) of the  Securities  Exchange  Act of 1934,  as amended (the
               "Exchange  Act")  (other than the  Company,  any trustee or other
               fiduciary  holding  securities  under an employee benefit plan of
               the Company, or any company owned, directly or indirectly, by the
               stockholders of the Company in substantially the same proportions
               as their  ownership of the stock of the  Company),  is or becomes
               the  "beneficial  owner"  (as  defined  in Rule  13d-3  under the
               Exchange  Act),  directly or  indirectly,  of  securities  of the
               Company  representing  either 31% or more of the voting  power of
               all classes of capital stock of the Company or 33-1/3% or more of
               the then  outstanding  common  stock  without  par value,  of the
               Company;

               (2) the following  individuals cease for any reason to constitute
               a majority of the number of directors  then serving:  individuals
               who, on the date hereof, constitute the Board of Directors of the
               Company and any new director (other than a director whose initial
               assumption  of  office  is  in  connection   with  an  actual  or
               threatened  election  contest,  including  but not  limited  to a
               consent  solicitation,  relating to the  election of directors of
               the  Company)  whose  appointment  or  election  by the  Board of
               Directors   or   nomination   for   election  by  the   Company's
               stockholders  was approved or  recommended  by a vote of at least
               two thirds (2/3) of the directors then still in office who either
               were  directors  on the  date  hereof  or  whose  appointment  or
               election or nomination for election was previously so approved or
               recommended;





                                       34
<PAGE>



               (3)  the   stockholders  of  the  Company  approve  a  merger  or
               consolidation of the Company or any direct or indirect subsidiary
               of the Company with any other company, other than (i) a merger or
               consolidation  which would result in the voting securities of the
               Company  outstanding  immediately  prior  thereto  continuing  to
               represent  (either by remaining  outstanding  or being  converted
               into  voting  securities  of the  surviving  entity or any parent
               thereof) more than 50% of the combined voting power of the voting
               securities of the Company or such surviving  entity or any parent
               thereof   outstanding    immediately   after   such   merger   or
               consolidation  or (ii) a  merger  or  consolidation  effected  to
               implement   a   recapitalization   of  the  Company  (or  similar
               transaction)  in which no "person" (as defined  herein)  acquires
               more than 50% of the combined  voting power of the Company's then
               outstanding securities; or

               (4) the  stockholders  of the Company  approve a plan of complete
               liquidation  of the  Company  or an  agreement  for  the  sale or
               disposition  by the  Company of all or  substantially  all of the
               Company's assets.

7.   AMENDMENT.  The Plan may not be terminated  or amended  except by action of
     the  Board,  and may not be  amended to  terminate  or reduce or  adversely
     affect benefits of any Executive then participating in the Plan without the
     approval of such Executive.

8.   FORFEITURE.  No  forfeiture  provisions  contained  herein shall  survive a
     Change of Control.

9.   GOVERNING LAW; BINDING EFFECT. The Plan shall be governed and construed and
     enforceable  in  accordance  with the laws of the State of New York. If the
     Company is consolidated or merged with or into another  corporation,  or if
     another entity purchases all, or substantially  all of the Company's assets
     the  surviving  or acquiring  corporation  shall  succeed to the  Company's
     rights and obligations  under the Plan. The Plan shall inure to the benefit
     of,  and  shall  be  enforceable  by,  the  Executive's  personal  or legal
     representatives,  executors,  administrators,  successors, heirs, devisees,
     and legatees.

10.  NATURE OF OBLIGATIONS.  The Company's obligations to pay benefits under the
     Plan shall be  contractual  in nature  only;  however,  the amounts of such
     payments  may be held in a trust,  the assets of which  shall be subject to
     the claims of the Company's general creditors in the event of bankruptcy or
     insolvency  only.  Any benefit paid from such trust shall reduce the amount
     of benefits owed by the Company.

11.  NOTICE.  Any  notice or filing  required  or  permitted  to be given to the
     Company shall be  sufficient if in writing and hand  delivered or when sent
     by  Registered or Certified  mail to the  principal  office of the Company,
     directed to the  attention of the  Secretary of the Company.  Any notice to
     the Executive  must be in writing and is effective  when  delivered or when
     mailed by Registered or Certified mail, return receipt  requested,  postage
     prepaid to the Executive or his personal  representatives at his last known
     address.

12.  EMPLOYMENT.  Nothing  contained in the Plan nor any action taken  hereunder
     shall be  construed  as a contract  guaranteeing  the  Executive  continued
     status as an employee.  Further,  if the Executive  has  committed  willful
     misconduct  in  office  materially  injurious  to the  Company  or has been
     convicted of a felony  relating to conduct in office  affecting the Company
     constituting willful violation of criminal law, any rights of the Executive
     under the Plan may be terminated by action of the Committee.





                                       35
<PAGE>



13.  VALIDITY. In the event any provision of this Plan is held invalid, void, or
     unenforceable,  the same shall not  affect in any  respect  whatsoever  the
     validity of any other  provision of this Plan.  Recipients in pay status as
     of January  28,  1998,  who do not  consent to the  amendment  to the Plan,
     effective January 28, 1998, within sixty (60) days of the date of notice of
     the amendment  shall continue to receive  benefits in the event of a Change
     of  Control  under the  terms of the Plan in  effect on the date  preceding
     January 28, 1998.

14.  ASSIGNMENT.  The  Executive  may  not  assign,  alienate,   anticipate,  or
     otherwise  encumber any rights,  duties or amounts which he may be entitled
     to receive under the Plan.

15.  PROTECTIVE PROVISIONS. The Executive shall cooperate in good faith with the
     Company in furnishing any and all information  reasonably  requested by the
     Company in order to determine and  facilitate  benefit  payments  under the
     Plan.

16.  GENDER,  SINGULAR AND PLURAL.  All pronouns in any variations thereof shall
     be deemed to refer to the  masculine  or  feminine  as the  identity of the
     person or persons may require. As the context may require, the singular may
     be read as the plural and the plural as the singular.

17.  CAPTIONS.  The captions to the sections and  paragraphs of the Plan are for
     convenience  or reference  only and shall not control or affect the meaning
     or construction of any of its provisions.

     IN WITNESS WHEREOF, the Company has caused the Plan, as amended, to be duly
     adopted and executed by its duly authorized officers and its corporate seal
     affixed hereon as of October 8, 1999.

ATTEST:                                              ASARCO Incorporated



/s/Susana D. Delanney                                By:/s/F.R. McAllister
Assistant Secretary                                  Chairman of the Board




                                       36
<PAGE>



Exhibit 10(b)

                               ASARCO Incorporated
                           Compensation Deferral Plan
                      (As Amended through October 8, 1999)


Section 1 - Effective Date.
The effective  date of the Plan as originally  adopted is February 1, 1995.  The
effective  date of the Plan as hereby amended and restated is April 28, 1999, as
further amended effective October 8, 1999.

Section 2 - Definitions.
1)     Board - the Board of Directors of ASARCO Incorporated.
2)     Code - the Internal Revenue Code of 1986, as amended.
3)     Committee - the Organization and Compensation Committee of the Board or
       any individual or individuals to whom authority has
       been delegated hereunder by the Organization and Compensation Committee.
4)     Company - ASARCO Incorporated and any subsidiary of ASARCO Incorporated
       that has adopted the Plan.
5)     Deferral Amounts - a Participant's Salary Deferral Amounts(including any
       of  such  amounts   further   deferred  under  Section   6(b)), Incentive
       Compensation  Deferral  Amounts,  Employer  Provided  Benefit,and Special
       Incentive Awards (each as defined in Section 4(b)).
6)     Director - any individual serving as a member of the Board.
7)     Incentive Compensation  Plan - the Incentive Compensation Plan for Exempt
       Salaried Employees of ASARCO Incorporated.
8)     Incentive  Plan - the Incentive Compensation Plan for Senior Officers of
       ASARCO Incorporated.
9)     Participant - an  Eligible  Employee, as defined in Section 3, who has a
       valid election in effect under the Plan.

10)    Participant  Account - A bookkeeping account established in the financial
       records  of the  Company  to  record  the  Deferral  Amounts  and  deemed
       investment  earnings or losses  arising  therefrom  based on  Participant
       elections pursuant to Section 5.

11)    Retirement - Retirement  under the  Retirement  Benefit Plan for Salaried
       Employees of ASARCO Incorporated.

13)    Savings  Plan - Savings  Plan of ASARCO  Incorporated  and  Participating
       Subsidiaries.

Section 3 - Eligibility.

a) Salary Deferral

   For purposes of salary  deferral,  any employee  eligible to participate in
   the Savings Plan who:

     1) had  compensation  from the  Company of at least  $80,000 (or such other
     greater  limit as may be  established  under Code Section  414(q)(1)(B)(1))
     (the "HCE Limit") for the calendar  year  preceding  the year for which the
     election is effective, or

     2) has an annualized base salary equal to or greater than the HCE Limit for
     the year for  which  the  election  is  effective  shall be  considered  an
     "Eligible Employee".

b)   Incentive  Compensation  Deferral  For  purposes of  deferrals of incentive
     compensation  received  under  the  Incentive  Compensation  Plan  and  the
     Incentive  Plan  ("Incentive  Compensation  Awards"),  any exempt  salaried
     employee of the Company who meets the compensation  requirements of Section
     3(a)(1) or 3 (a) (2) above, shall be considered an "Eligible Employee".




                                       37
<PAGE>

Section 4 - Participation.

a) Election to Defer

     1)   Salary  Deferral.  To  become a  Participant  in the  salary  deferral
          component  of the Plan for a  particular  calendar  year,  an Eligible
          Employee must elect,  prior to the beginning of such calendar year, to
          defer  receipt of a percentage  of his base annual salary to be earned
          during the  succeeding  calendar  year.  Such an election  shall be in
          writing on forms  prescribed by the  Committee,  and shall include the
          percentage  of base  annual  salary to be  deferred.  A  Participant's
          election  to  defer  with  respect  to  a  calendar  year  under  this
          subsection (a)(1) shall continue in effect for all subsequent calendar
          years until changed in accordance  with subsection (d). An employee of
          the Company who becomes an Eligible  Employee  during a calendar  year
          may elect to become a Participant in the Salary Deferral  component of
          the Plan for such  calendar  year by electing to defer a percentage of
          his base annual  salary (in  accordance  with Section  4(b)) within 30
          days of becoming an Eligible Employee.  The election will be effective
          on a prospective  basis  beginning with the payroll period that occurs
          as soon  as  administratively  practicable  following  receipt  of the
          election by the Committee.

     2)   Incentive  Compensation  Deferral.  To  become  a  participant  in the
          Incentive Compensation Deferral component of the Plan for a particular
          calendar year, an Eligible Employee must elect, prior to the beginning
          of such calendar year, to defer receipt of an amount not to exceed 100
          percent  of his  Incentive  Compensation  Award,  payable  during  the
          calendar year to which the election relates. Such an election shall be
          in writing  on forms  prescribed  by the  Committee.  A  Participant's
          election  to  defer  with  respect  to  a  calendar  year  under  this
          subsection (a)(2) shall continue in effect for all subsequent calendar
          years until changed in accordance with subsection (d).

b)       Deferral Amount

     1)   Salary  Deferral.  A Participant who meets the requirements of Section
          4(a)(1) for a calendar  year may elect to have the  following  amounts
          (the  "Salary  Deferral  Amount")  credited  to his  account  for such
          calendar year or portion thereof during which an election is effective
          (the "Deferral Period"):

          a)   the  product of (i) the  Participant's  elected  salary  deferral
               contribution  percentage  under  this  Plan  (not to  exceed  the
               maximum contribution percentage permitted under the Savings Plan)
               and (ii) the lesser of the  Participant's  base annual salary for
               such year or the Compensation  Limit (as defined below);  reduced
               by the  maximum  contribution  permitted  for highly  compensated
               employees under the Savings Plan due to the  limitations  imposed
               by Code Section  401(k)(3) or by the plan  administrator  for the
               Savings Plan for such calendar year; and

          b)   the Participant's elected salary deferral contribution percentage
               under the  Savings  Plan as in effect on  January 1 of such year,
               multiplied by the  Participant's  base annual salary in excess of
               the Code Section  401(a)(17) limit, as adjusted from time to time
               ($160,000 in 1999) (the "Compensation Limit"); provided, however,
               that the total amount of Salary  Deferrals  under this subsection
               cannot exceed the maximum contribution  percentage as may then be
               permitted under the Savings Plan.

     2)   Incentive   Compensation  Deferral.  The  amount  of  a  Participant's
          incentive  compensation  deferral  for a Deferral  Period shall be any
          whole dollar  amount or whole  percent of his  Incentive  Compensation
          Award payable  during the calendar year as elected by the  Participant
          (the "Incentive Compensation Deferral Amount"). In the event the award
          payable is less than the dollar amount specified in the  Participant's
          election,  the full amount of the award shall be deferred  (subject to
          Section 15).


                                       38
<PAGE>



     3)   Employer Provided Benefit.  With respect to each Deferral Period,  the
          Company shall make a deemed matching contribution equal to 50% of each
          Participant's  Salary  Deferral  Amount  (each  such  deemed  matching
          contribution, an "Employer Provided Benefit"); provided, however, that
          no  Participant's   Employer   Provided  Benefit  with  respect  to  a
          particular   year  may   exceed   the  amount  by  which  3%  of  such
          Participant's   base  salary  for  such  year   exceeds  the  matching
          contribution made by the Company on the Participant's behalf under the
          Savings Plan for such year.

     4)   Special  Incentive  Awards.  Notwithstanding  anything to the contrary
          herein, the Committee, in its discretion,  may provide for any amounts
          awarded to a  Participant  by the Board or the  Committee as a special
          incentive award under the Incentive  Compensation  Plan to be deferred
          pursuant  to the terms of this Plan and  credited  to a  Participant's
          Account,  subject to the terms and  limitations of the award ("Special
          Incentive Awards").

               c) Irrevocability  of Election
               Subject to the  provisions of subsection (d) of this Section 4, a
               deferral election hereunder shall be irrevocable.

               d) Change of Election
               A Participant  may change prior  elections with respect to Salary
               Deferral or Incentive Compensation Deferral once in each calendar
               year.  Changes  shall be in writing,  on forms  prescribed by the
               Committee.  Such change of election  shall first be effective for
               the calendar year beginning after the date the change is received
               by the Committee.

Section 5 - Deemed Investment Provisions.
a)   At the time of the election to  participate  in the Plan,  the  Participant
     must elect in writing to have his  Deferral  Amounts  deemed  invested,  in
     increments  of no less than 5%, in one or more of the  investment  funds as
     are provided under the Savings Plan, except however, that the Asarco Common
     Stock Fund shall not be available  as a deemed  investment.  Said  election
     must total one hundred percent (100%) of his Deferral Amounts.

b)   The  Participant  Accounts shall be credited with deemed  earnings,  gains,
     losses,  expenses and changes in the fair market value of such  Participant
     Accounts as if the Company had followed such investment designations.

c)   Each  Participant may elect in writing that his future Deferral  Amounts be
     deemed invested in a proportion different from that previously elected, but
     the new election shall be prospective  only and shall be made in accordance
     with  paragraph  (b)  of  this  Section  5.  Any  changes  in  such  deemed
     investments must be in accordance with rules, if any, as are established by
     the Committee.

d)   The election of a deemed  investment  option is the sole  responsibility of
     each Participant.  Neither the Company, nor the Committee,  nor any trustee
     of any  trust  that  may be  established  in  connection  with the Plan are
     authorized or permitted to advise (or shall have any liability with respect
     to) a  Participant  as to the election of any option or the manner in which
     his Deferral Amounts shall be deemed to be invested.

e)   Consistent with this Section 5, each Participant may elect in writing, that
     a whole  percentage  (no less  than 5%) or  specific  dollar  amount of his
     deemed  investment  in any  fund  may be  transferred  to  any  other  fund
     available under the Plan.  Such election will be prospective  only and will
     be permitted in accordance  with rules,  if any, as are  established by the
     Committee.



                                       39
<PAGE>



Section 6 - Value and Payment of Benefits.
a)   Payment of Benefits
     Each Participant shall receive the value of his Participant Account in cash
     on January 15 of the year  following the year of the  Participant's  normal
     Retirement.  If a Participant  terminates service with the Company prior to
     qualifying for normal Retirement, the value of his Participant Account will
     be distributed in cash on the 15th day of the 13th month following the date
     of  termination  (subject to Section  15). As an  alternative  to receiving
     payment on the dates provided in this  paragraph,  a Participant may elect,
     at least  twelve (12) months prior to the date of his  Retirement  or other
     termination  of service  with the  Company (as the case may be), to receive
     payment of all the value of his Participant Account on such Retirement date
     or the date of other  termination  of service with the Company (as the case
     may be). In the event of the death of a  Participant  before  receiving the
     value of his Participant  Account,  such distribution  shall be paid to his
     beneficiary or  beneficiaries  designated  pursuant to Section 7 as soon as
     practicable under the Plan.

b)   Further Deferral
     Notwithstanding  subsection (a) of this section,  a Participant who retires
     from the Company,  and who at the time of  Retirement  has a balance in his
     Participant Account of at least $50,000, may elect to further defer receipt
     of all or a portion of his Participant  Account,  but not less than $50,000
     for a period of up to 20 years from his date of  Retirement.  The  deferred
     portion of a  Participant's  Account shall continue to constitute  Deferral
     Amounts  and shall  continue to be subject to the  provisions  of Section 5
     above,  including  without  limitation  paragraph  (b) thereof.  To defer a
     payment  of  benefits  under the Plan,  a  Participant  must file a written
     election at least twelve (12) months in advance of the date that payment of
     benefits under the Plan would  otherwise be made. The Participant may elect
     to receive the amount  deferred in a single cash  payment or in annual cash
     installments.  Any election made pursuant to this  paragraph may be amended
     to  accelerate,  further  defer or to change  the form of payment of all or
     part of the Deferral Amounts,  if amended in accordance with the provisions
     of  paragraph  (e) hereof,  but only to the extent  that the  Participant's
     right  to  accelerate  the  payment  of a  Deferral  Amount  has  not  been
     restricted by the terms of a Special Incentive Award.

c)   Financial Hardship of Participants
     Except as may  otherwise  be provided  by the terms of a Special Incentive
     Award, at any time prior to commencement of payment of benefits pursuant to
     paragraph (b) of this Section 6, a Participant may request a payment of all
     or a portion of the value of his Participant Account. Such a request shall
     be approved by the Committee only upon a finding that the  Participant has
     suffered a severe financial hardship which has resulted from events beyond
     the  Participant's  control  ("Hardship  Event"),  and  only in the amount
     reasonably needed to satisfy such Hardship Event. Whether a Hardship Event
     has occurred  shall be determined in  accordance with Treasury  Regulation
     Sections  1.457-  2(h)(4) and (5). In the event such a payment is approved,
     payment of all or a portion of the value of the  Participant Account shall
     be made as soon as practicable to the Participant.

d)   Other Withdrawals
     Absent a  Hardship  Event or  adequate  prior  notice (in  accordance  with
     paragraph  (b)  above),  a request for a payment of all or a portion of the
     value of a Participant Account may be made by a Participant subject to a 6%
     penalty of the amount of the  requested  payment,  which  penalty  shall be
     deducted  from the requested  payment.  The  requested  payment,  less such
     penalty,  shall be paid in cash in a single lump sum as soon as practicable
     after the requested payment date.


                                       40
<PAGE>



e)   Amendment of Election
     At any  time  subsequent  to an  election  pursuant  to  paragraph  (b),  a
     Participant may file an election to amend such prior election affecting any
     Deferral  Amount  payable at least  twelve (12) months  subsequent  to such
     amendment,  either to  accelerate,  further  defer or to change the form of
     payment,  provided no such  election may  accelerate  any payment to a date
     earlier  than twelve (12)  months from the date of  amendment.  The amended
     form of payment may be a single sum payment of any Deferral Amounts not yet
     due and payable or annual  installments of any such Deferral Amounts,  or a
     combination  thereof,  provided no payments may be extended longer than the
     time specified in paragraph (b).

f)   Allocation of Amounts Withdrawn
     In the case of any payment  pursuant to this  Section 6 of less than all of
     the value of a  Participant  Account,  the Committee  will make  reasonable
     efforts to follow any instructions received from the Participant indicating
     from which deemed  investments  any such  distribution is first to come. In
     the  absence  of  instructions,  distributions  shall be made on a pro rata
     basis from all the deemed investments  currently elected by the Participant
     pursuant to Section 5 with respect to the Participant Account.

Section 7 - Designation of Beneficiary.
A Participant may designate one or more  beneficiaries  by giving written notice
to  the  Committee.  If no  beneficiary  is  so  designated,  the  Participant's
beneficiary  will be the  Participant's  estate.  If more  than one  beneficiary
statement  has been filed the  beneficiary  or  beneficiaries  designated in the
statement bearing the most recent date will be deemed the valid beneficiary.

Section 8 - Participant's Rights Unsecured.
The right of any  Participant  to receive  benefits  under the provisions of the
Plan shall be contractual in nature only; however,  the amounts of such benefits
may be held in a trust,  the  assets of which  shall be subject to the claims of
the Company's  general  creditors only in the event of bankruptcy or insolvency.
Any amounts  paid to a  Participant  from such trust shall  reduce the amount of
benefits owed by the Company.

Section 9 - Participation in Other Plans.
Nothing in this Plan will affect any right  which a  Participant  may  otherwise
have to participate in any other  retirement plan or agreement which the Company
may have now or hereafter.

Section 10 - Non-Alienation of Benefits.
No right to receive payments  hereunder shall be transferable or assignable by a
Participant or beneficiary.

Section 11 - Administration of the Plan.
The Plan shall be  administered  by the Committee.  The Committee shall construe
and  interpret  the Plan and may  adopt  rules  and  regulations  governing  the
administration  of the Plan, as well as exercise any duties and powers conferred
on it by the  terms of the Plan.  The  Committee  shall  act by vote or  written
consent of a majority  of its members or  otherwise  as in  accordance  with its
general procedures as in effect from time to time.

Section 12 - Amendment or Termination of the Plan.
This  Plan  may at any  time or  from  time to  time  be  amended,  modified  or
terminated  by the Board.  No  amendment,  modification  or  termination  shall,
without  the  consent of a  Participant,  adversely  affect  such  Participant's
accruals in his Participant Account.


                                       41
<PAGE>



Section 13 - No Entitlement to Awards or Right of Continued Employment.
Neither the establishment of the Plan nor the payment of any benefits  hereunder
nor any action of the Company,  a subsidiary  of the Company,  or the  Committee
shall be held or  construed  to confer  upon any  person  any legal  right to be
awarded any amounts under the Incentive Plan or the Incentive  Compensation Plan
or to continue in the employ of the Company or a subsidiary of the Company.  The
Company  and its  subsidiaries  expressly  reserve  the right to  discharge  any
Participant whenever the interest of any such company in its sole discretion may
so require without  liability to such company or the Committee  except as to any
rights which may be expressly conferred upon such Participant under the Plan.

Section 14 - Discretion of Company, Committee, and Board.
Any decision  made or action taken by the Company or by the  Committee or by the
Board arising out of or in  connection  with the  construction,  administration,
interpretation  and effect of the Plan shall lie within the absolute  discretion
of the Company,  the  Committee  or the Board,  as the case may be, and shall be
final, conclusive and binding upon all persons.

Section 15 - Tax Withholding.
There shall be deducted  from all deferrals or payments made under this Plan the
amount of any taxes  required  to be withheld by any  Federal,  state,  local or
foreign government, including any employment taxes required to be withheld under
Code Section 3121(v).  The Participants and their  beneficiaries,  distributees,
and  personal  representatives  will bear any and all Federal,  foreign,  state,
local or other income or other taxes imposed on amounts paid under the Plan, and
the Company may take  whatever  actions are  necessary and proper to satisfy all
obligations of such persons for payment of all such taxes.

Section 16 - Change of Control.
a)   Notwithstanding  any other provision of this Plan, in the event of a Change
     of Control (as defined  below),  no person that is not a Participant in the
     Plan immediately prior to such Change of Control shall be permitted to be a
     Participant under the Plan following such Change of Control. Upon and after
     a Change of Control,  this Plan may not be amended,  modified or terminated
     if any such amendment,  modification or termination  would adversely affect
     any accrued  benefits of a Participant or his or her rights with respect to
     such accrued benefits in the Plan, unless any such amendment,  modification
     or termination is consented to in writing by all such Participants.  Upon a
     Change of Control,  payment of all of the value of a  Participant  Account,
     including any Special Incentive Award component  thereof,  shall be made to
     the Participant immediately in a single cash lump sum without penalty. Upon
     a Change of Control Participants are permitted to request a distribution of
     assets in kind in lieu of a cash lump sum.  For purposes of this Section 16
     the term "Company" shall mean ASARCO Incorporated.

b)   For  purposes of this Plan,  a "Change of Control"  shall be deemed to have
     occurred if:

     1)   any "person",  as such term is used in Sections 13(d) and 14(d) of the
          Securities  Exchange  Act of 1934,  as amended  (the  "Exchange  Act")
          (other  than the  Company,  any  trustee  or other  fiduciary  holding
          securities  under an  employee  benefit  plan of the  Company,  or any
          company owned,  directly or  indirectly,  by the  stockholders  of the
          Company in  substantially  the same  proportions as their ownership of
          the stock of the Company),  is or becomes the  "beneficial  owner" (as
          defined in Rule 13d-3 under the Exchange Act), directly or indirectly,
          of  securities of the Company  representing  either 31% or more of the
          voting power of all classes of capital stock of the Company or 33-1/3%
          or more of the then  outstanding  common stock,  without par value, of
          the Company;



                                       42
<PAGE>



     2)   the  following  individuals  cease  for any  reason  to  constitute  a
          majority of the number of Directors then serving:  individuals who, on
          the date hereof,  constitute the Board of Directors of the Company and
          any new director  (other than a Director  whose initial  assumption of
          office is in connection with an actual or threatened election contest,
          including but not limited to a consent  solicitation,  relating to the
          election of Directors of the Company) whose appointment or election by
          the Board of Directors  or  nomination  for election by the  Company's
          stockholders  was  approved  or  recommended  by a  vote  of at  least
          two-thirds (2/3) of the Directors then still in office who either were
          Directors  on the date  hereof or whose  appointment  or  election  or
          nomination for election was previously so approved or recommended;

     3)   the  stockholders of the Company approve a merger or  consolidation of
          the Company or any direct or indirect  subsidiary  of the Company with
          any other  company,  other  than (i) a merger or  consolidation  which
          would  result in the  voting  securities  of the  Company  outstanding
          immediately prior thereto continuing to represent (either by remaining
          outstanding or being converted into voting securities of the surviving
          entity or any parent  thereof)  more than 50% of the  combined  voting
          power of the voting securities of the Company or such surviving entity
          or  parent  thereof  outstanding  immediately  after  such  merger  or
          consolidation or (ii) a merger or consolidation  effected to implement
          a recapitalization of the Company (or similar transaction) in which no
          "person" (as defined  herein)  acquires  more than 50% of the combined
          voting power of the Company's then outstanding securities; or

     4)   the stockholders of the Company approve a plan of complete liquidation
          of the  Company or an  agreement  for the sale or  disposition  by the
          Company of all or substantially all of the Company's assets.

Section 17 - Severability.

In the event any provision of this Plan would serve to invalidate the Plan, that
provision  shall be deemed to be null and void,  and the Plan shall be construed
as if it did not contain the particular provision that would make it invalid.

Section 18 - Governing Law; Binding Effect; Miscellaneous.

The Plan shall be governed and construed and  enforceable in accordance with the
laws of the State of New York, except as superseded by applicable Federal law.

Where  appearing in the Plan,  the  masculine  gender shall include the feminine
gender.

IN WITNESS WHEREOF, the Company has caused the ASARCO Incorporated  Compensation
Deferral  Plan,  as  amended,  to be  duly  adopted  and  executed  by its  duly
authorized  officers and its corporate  seal affixed hereon as of the 8th day of
October, 1999.


ATTEST:                                              ASARCO Incorporated



/s/Susana D. Delanney                                By:/s/K.R. Morano
Assistant Secretary                                        President







                                       43
<PAGE>





Exhibit 10(c)

                               ASARCO Incorporated
                          SUPPLEMENTAL RETIREMENT PLAN
                      (As Amended through October 8, 1999)

Section 1.  Effective Date.

The  effective  date  of  the  Supplemental  Retirement  Plan  (the  "Plan")  as
originally  adopted is February  27,  1976.  The  effective  date of the Plan as
amended and restated is September 24, 1999, as further  amended  effective as of
October 8, 1999.

Section 2.  Definitions.

1. Benefits. The amount calculated under Section 4 for each Eligible Employee.

2. Benefit  Commencement  Date.  Except as  provided  in  Section  14, the date
benefits commence under the Pension Plan.

3. Board. The Board of Directors of ASARCO Incorporated.

4. Code. The Internal Revenue Code of 1986, as amended.

5. Committee.  The Organization  and Compensation  Committee of the Board or any
individual or individuals to whom it delegates authority.

6. Company. ASARCO Incorporated.

7. Deferral Amount. Any Benefit amount,  including earnings thereon,  receipt of
which is deferred under Section 7.

8. Disability. Permanent and total disability as defined in the Pension Plan.

9. Eligible Employee. Any employee who meets the eligibility criteria of Section
3.

10.  Investment  Manager.  The investment  company  selected by the Company,  or
designated  by the Company at the request of an  Eligible  Employee  pursuant to
Section 15, for deemed investment of deferred benefits.

11. Pension Plan. The Retirement  Benefit Plan for Salaried  Employees of ASARCO
Incorporated.

Section 3.  Eligibility.

All  salaried  employees  of  the  Company  or of  any  subsidiary  specifically
designated by the Company,  whose retirement  benefits payable under the Pension
Plan, are reduced:

          (i)  due to the benefit limitations of Section 415 of the Code; or

          (ii) due to the  requirement  of Section  401(a)(17)  of the Code that
               compensation  in excess of the limit in effect  for a  particular
               year  thereunder  may not be taken into  account for Pension Plan
               purposes; or

          (iii)due  to  participation  in  any  Company  plan  or  program  that
               provides for elective  pre-tax  deferrals (the  reductions  under
               this  Section  3(i),  (ii),  and (iii)  hereinafter  collectively
               referred  to  as  "Code  Reductions")  shall  be  eligible  as to
               Benefits under this Plan.



                                       44
<PAGE>



Section 4.  Calculation of Benefits.

The Company will pay or cause to be paid to each Eligible  Employee or surviving
spouse of such Eligible  Employee (as defined in the Pension Plan),  as the case
may be, who  receives  payment  under the  Pension  Plan (for  purposes  of this
section 4 each a "Recipient"),  a Benefit which is equivalent to the excess,  if
any, of

          (i)  the amount such  Recipient  would have received under the Pension
               Plan for each calendar  year,  taking into account all provisions
               of the Pension Plan in effect and applicable from time to time to
               the Recipient, except for the Code Reductions; over

          (ii) the amount the Recipient is entitled to receive under the Pension
               Plan for such year, taking into account the Code Reductions.

Section 5.  Payment of Benefits.

(a) Except as otherwise  provided herein,  Benefits under the Plan shall be paid
in a lump sum, in cash,  on January 15th of the year  immediately  following the
year of the Eligible  Employee's Benefit  Commencement Date.  Alternatively,  an
Eligible  Employee  may elect,  at least twelve (12) months prior to his Benefit
Commencement Date, to receive all or a portion of the Benefits payable hereunder
on such Benefit Commencement Date.

(b) An Eligible Employee may elect to receive annuity payments under the Plan in
the same form and at  approximately  the same time as payments are to be made to
the Eligible  Employee under the Pension Plan.  Such an election must be made in
writing at least  twelve (12) months  prior to the  Benefit  Commencement  Date,
except in the event of termination by reason of "Disability",  in which case the
election may be made at any time prior to the date of  termination.  An election
under this subsection may be amended at any time provided that no such amendment
shall be given  effect  unless it is made in writing at least twelve (12) months
prior to the Benefit Commencement Date.

Section 6.  Death of Employee.
Upon the death of an Eligible Employee:

          (i)  Who has  elected an annuity  form of payment  pursuant to Section
               5(b), the Eligible Employee's  beneficiary under the Pension Plan
               shall receive the Benefit  described in Section 4 above,  if any,
               in the same form and  approximately  at the same time as payments
               are made to such beneficiary under the Pension Plan.

          (ii) Who has not  elected  an  annuity  form of  payment  pursuant  to
               Section 5(b), the Eligible  Employee's  surviving spouse, if any,
               shall  receive  any  Benefits  at the same  time as  provided  in
               Section 5, except a valid  election under Section 7 shall survive
               the death of the Eligible  Employee.  In such case, the surviving
               spouse shall have the same rights as are provided to the Eligible
               Employee   pursuant  to  Section  7  below  except  that  further
               deferrals  will  not  be  permitted.  An  Eligible  Employee  may
               designate a contingent  beneficiary  by giving  written notice to
               the Company.  If there is no surviving spouse, the amount payable
               pursuant to this subsection  shall be paid as soon as practicable
               in a lump sum to the Eligible Employee's contingent  beneficiary,
               or if none, to his estate.



                                       45
<PAGE>



Section 7.  Deferral of Benefit Payments.

(a) If the value of the  Benefits  payable to an  Eligible  Employee is at least
$50,000, an Eligible Employee may elect at least twelve (12) months prior to the
date  Benefits  will  be  paid  under  Section  5(a)  (except  in the  event  of
termination by reason of  Disability,  in which case the election may be made at
any time prior to the Benefit  Commencement Date), to defer, for a period not to
exceed twenty (20) years from the Benefit Commencement Date, the Deferral Amount
to a future date or to provide for the payment of a Deferral  Amount in a series
of scheduled installments.  Any election made pursuant to this subsection may be
amended to accelerate,  further defer (except as otherwise provided with respect
to a surviving  spouse in Section 6(ii)) or to change the form of payment of all
or part of the Deferral Amount,  if amended in accordance with the provisions of
Section 7(d).

(b) At any  time  subsequent  to the  Benefit  Commencement  Date,  an  Eligible
Employee  who made an election  pursuant to Section  7(a) and who has suffered a
severe  financial  hardship  which has resulted  from events beyond the Eligible
Employee's control ("Hardship Event"), may request a payment of all or a portion
of the value of his Deferral Amount which is not yet payable.  If such a request
shall be approved by the  Committee  payment of all or a portion of the value of
the  Deferral  Amount  shall  be made in cash in a  single  lump  sum as soon as
practicable to the Eligible  Employee but only in an amount reasonably needed to
satisfy such  Hardship  Event.  Whether a Hardship  Event has occurred  shall be
determined in accordance  with Treasury  Regulation  Sections 1.457- 2(h)(4) and
(5).

(c) At any  time  subsequent  to the  Benefit  Commencement  Date,  an  Eligible
Employee  who  made  an  election   pursuant  to  Section  7(a)  may  elect  the
acceleration  of payment of all or a portion of the value of the Deferral Amount
not yet payable  subject to a 6% penalty of the amount  accelerated.  Payment of
such amount, less such penalty (which shall be forfeited), shall be paid in cash
in a single lump sum as soon as practicable after the requested payment date.

(d) At any  time  subsequent  to the  Benefit  Commencement  Date,  an  Eligible
Employee who has made an election  pursuant to Section 7(a) may file an election
to amend such prior election  affecting any Deferral  Amount payable at least 12
months subsequent to such amendment,  either to accelerate,  further defer or to
change the form of payment of such  Deferral  Amount,  provided no such election
may  accelerate  any payment to a date  earlier  than 12 months from the date of
amendment.  The  amended  form of  payment  may be a single  sum  payment of any
amounts not yet due and payable or annual installments of any such amounts, or a
combination  thereof,  provided no payments may be extended longer than the time
specified in Section 7(a).

(e) In the case of any payment pursuant to this Section 7 of less than the total
value of a Deferral Amount, the Committee will make reasonable efforts to follow
any  instructions  received  from the Eligible  Employee  indicating  from which
deemed  investments  any such  distribution  is first to come. In the absence of
instructions,  distributions  shall  be made on a pro  rata  basis  from all the
deemed  investments  currently  elected by the  Eligible  Employee  pursuant  to
Section 8 with respect to the Deferral Amount.





                                       46
<PAGE>



Section 8.  Investment of Deferral Amounts.

(a) Any Deferral Amount shall be deemed invested, as of the Benefit Commencement
Date, in accordance with an election to be made by the Eligible Employee in such
investment  vehicles as are provided  under rules  established by the Committee.
The Company will attempt to follow the Eligible Employee's  elections,  but will
not  be  required  to do so.  Regardless  of  whether  the  Eligible  Employee's
elections  are  followed,  the  Deferral  Amount  shall be credited  with deemed
earnings,  gains, losses, expenses, and changes in the fair market value of such
Deferral Amount as if the Company had followed such investment designations. All
elections,   amendments  to  elections,   and  provisions  for  transfers  among
investment  vehicles  shall be in  accordance  with  rules,  if any, as shall be
established by the Committee.

(b) The election of a deemed  investment  option is the sole  responsibility  of
each Eligible  Employee.  Neither Asarco, nor the Committee that administers the
Plan, nor any trustee of any trust that may be  established  in connection  with
the Plan are authorized or permitted to advise (or shall have any liability with
respect to) an Eligible  Employee as to the election of any option or the manner
in which his Deferral Amount shall be deemed to be invested.

(c) Except for an Eligible  Employee  who elects  annuity  payments  pursuant to
Section 5(b),  absent an election to defer  Benefits  pursuant to Section 7, all
unpaid Benefit amounts shall be deemed  invested as of the Benefit  Commencement
Date in the Vanguard Money Market Reserve - Prime Portfolio, or other comparable
money market fund selected by the Company,  until paid to the Eligible  Employee
pursuant to the first sentence of Section 5(a).

Section 9.  Value of Benefits.

The  amount of the lump sum  referred  to in Section  5(a) shall be the  present
value of the  Benefit  amount  determined  under  Section 4 (after  taking  into
account,  if  applicable,  any  reductions  as set forth in the Pension  Plan to
reflect  the  commencement  of payments  prior to age 65) by  assuming  that the
Eligible  Employee has elected a single life annuity  under the Pension Plan and
by using the following actuarial assumptions:

(a) Discount  Rate.  The discount  rate used in computing  the present  value of
benefits  payable under the Plan is the yield on 10-year  treasury  notes on the
Eligible Employee's Benefit  Commencement Date, or if a legal holiday, the first
business day immediately  following the Benefit  Commencement Date.  However, at
any time during a thirteen  month  period  ending with the Benefit  Commencement
Date,  an Eligible  Employee may  designate an  alternative  date for fixing the
interest  rate (the  "Alternative  Date") used to calculate the present value of
the  lump  sum  distribution.  The  designation  must  be in  writing,  and  the
Alternative  Date must be within seven calendar days of the date the designation
is received by the Company.  The designation of the Alternative  Date for fixing
the interest rate, once made, may not be changed for any reason. Notwithstanding
the foregoing, if an Eligible Employee designates an Alternative Date under this
subsection in contemplation of commencing  benefits under the Pension Plan, such
designation  will  survive a  subsequent  postponement  of the  commencement  of
benefits under the Pension Plan by such Eligible  Employee,  except that, if the
yield on 10-year treasury notes on the Benefit  Commencement Date is higher than
on the  Alternative  Date,  the yield on the Benefit  Commencement  Date will be
used.

(b) Mortality  Table.  The Mortality  Table used will be that  contained in U.S.
Internal  Revenue Service  Revenue Ruling 95-6 or any succeeding  Revenue Ruling
issued by the Internal  Revenue  Service for use in applying the  provisions  of
Sections 415 and 417(e) of the Internal Revenue Code.

Section 10.  Employee's Rights Unsecured.

The right of any Eligible  Employee to receive  benefits under the provisions of
the Plan shall be  contractual  in nature  only;  however,  the  amounts of such
benefits  may be held in a trust,  the  assets of which  shall be subject to the
claims  of the  Company's  general  creditors  in the  event  of  bankruptcy  or
insolvency  only.  Any amounts  paid from such trust shall  reduce the amount of
benefits owed by the Company.

                                       47
<PAGE>

Section 11.  Assignability.

No right or interest of the Eligible  Employee  under this Plan shall be subject
to voluntary or involuntary alienation, assignment or transfer of any kind.

Section 12.  Participation in Other Plans.

Nothing  in this Plan will  affect  any right  which an  Eligible  Employee  may
otherwise have to participate in any other retirement plan, or agreement,  which
the Company may have now or hereafter.

Section 13.  Discretion of Company, Committee and Board.

Any decision made or action taken by the Company,  the Committee or by the Board
arising  out  of  or  in  connection  with  the  construction,   administration,
interpretation,  and effect of the Plan shall lie within the absolute discretion
of the Company,  the  Committee  or the Board,  as the case may be, and shall be
final, conclusive and binding upon all persons.

Section 14.  Change of Control.

(a)  Notwithstanding  any other provision of this Plan, in the event of a Change
of Control  (as  defined  below),  no person  that is not an  Eligible  Employee
immediately prior to such Change of Control shall be permitted to be an Eligible
Employee  under the Plan  following  such  Change of  Control.  Upon and after a
Change of Control,  this Plan may not be amended,  modified or terminated if any
such amendment,  modification or termination  would adversely affect any accrued
benefits  of an  Eligible  Employee  or his or her rights  with  respect to such
accrued  benefits  in the  Plan,  unless  any such  amendment,  modification  or
termination is consented to in writing by all Eligible Employees.  Upon a Change
of Control,  payment shall be made to Eligible Employees immediately in a single
cash lump sum of (1) the value of any and all  amounts  accrued to the  Eligible
Employees  hereunder  calculated using the Discount Rate and Mortality Table set
forth in  Section 9 or (2) the value of their  Deferral  Amounts.  Additionally,
Eligible  Employees who have not reached age 65 shall also receive an additional
payment to compensate  for the current  taxation of benefits.  The amount of the
additional  payment  shall  be  calculated  by  multiplying  the  cash  lump sum
calculated as set forth in this Section 14 by 16.7/100 of one percent  (0.00167)
for each  month  that the  Change  of  Control  precedes  the month in which the
Eligible  Employee reaches age 65. Upon a Change of Control  Eligible  Employees
who have  designated  an  Investment  Manager  under  Section 15  hereunder  are
permitted  to  request a  distribution  of assets in kind in lieu of a cash lump
sum.  For  purposes of this  Section  14,  benefits  under the Pension  Plan for
employees who have not attained age 55 shall be the amount  determined under the
Pension  Plan  payable as a vested  deferred  benefit (as defined in the Pension
Plan) at age 55 after  taking into  account the  discount  for  commencement  of
payment before age 55 using the actuarial assumptions in Section 9.

(b) For  purposes of this Plan,  a "Change of  Control"  shall be deemed to have
occurred if:

          (1)  any "person", as such term is used in Sections 12(d) and 13(d) of
               the  Securities  Exchange Act of 1934, as amended (the  "Exchange
               Act")  (other than the  Company,  any trustee or other  fiduciary
               holding securities under an employee benefit plan of the Company,
               or any company owned, directly or indirectly, by the stockholders
               of the Company in  substantially  the same  proportions  as their
               ownership  of  the  stock  of the  Company),  is or  becomes  the
               "beneficial  owner" (as defined in Rule 13d-3 under the  Exchange
               Act),  directly  or  indirectly,  of  securities  of the  Company
               representing  either  31% or  more  of the  voting  power  of all
               classes of capital stock of the Company or 33-1/3% or more of the
               then outstanding common stock without par value, of the Company;



                                       48
<PAGE>



          (2)  the  following  individuals  cease for any reason to constitute a
               majority of the number of  Directors  then  serving:  individuals
               who, on the date hereof, constitute the Board of Directors of the
               Company and any new Director (other than a Director whose initial
               assumption  of  office  is  in  connection   with  an  actual  or
               threatened  election  contest,  including  but not  limited  to a
               consent  solicitation,  relating to the  election of Directors of
               the  Company)  whose  appointment  or  election  by the  Board of
               Directors   or   nomination   for   election  by  the   Company's
               stockholders  was approved or  recommended  by a vote of at least
               two thirds (2/3) of the Directors then still in office who either
               were  Directors  on the  date  hereof  or  whose  appointment  or
               election or nomination for election was previously so approved or
               recommended;

          (3)  the stockholders of the Company approve a merger or consolidation
               of the  Company  or any  direct  or  indirect  subsidiary  of the
               Company  with any  other  company,  other  than  (i) a merger  or
               consolidation  which would result in the voting securities of the
               Company  outstanding  immediately  prior  thereto  continuing  to
               represent  (either by remaining  outstanding  or being  converted
               into  voting  securities  of the  surviving  entity or any parent
               thereof) more than 50% of the combined voting power of the voting
               securities of the Company or such surviving  entity or any parent
               thereof   outstanding    immediately   after   such   merger   or
               consolidation  or (ii) a  merger  or  consolidation  effected  to
               implement   a   recapitalization   of  the  Company  (or  similar
               transaction)  in which no "person" (as defined  herein)  acquires
               more than 50% of the combined  voting power of the Company's then
               outstanding securities; or

          (4)  the  stockholders  of the  Company  approve  a plan  of  complete
               liquidation  of the  Company  or an  agreement  for  the  sale or
               disposition  by the  Company of all or  substantially  all of the
               Company's assets.

Section 15.  Designation of Investment Manager.

(a) If the total lump sum value of an  Eligible  Employee's  benefits  under the
Plan,  the  ASARCO  Incorporated   Supplemental   Pension  Plan  for  Designated
Mid-Career  Officers,  and the ASARCO  Incorporated  Compensation  Deferral Plan
(collectively the "Plans") would as of the Eligible  Employee's  retirement date
exceed $3 million,  the Eligible  Employee may file a request with the Committee
that the entire lump sum value of any such benefits  deferred under the Plans be
deemed invested in such one or more  investment  alternatives as are provided by
an investment  manager to be designated by the Eligible  Employee.  Such request
may be made at any time,  however,  it may only be effective  after the Eligible
Employee  has  retired or  otherwise  commences  to receive  benefits  under the
Pension Plan.  Approval of any such request by an Eligible Employee to designate
an investment  manager under this Section 15 shall be at the sole  discretion of
the  Committee  and, if approved,  all fees related to all  investment  services
provided by the designated investment manager will be deducted from the value of
the  Eligible  Employee's  accounts.   The  Eligible  Employee  designating  the
investment  manager will be solely responsible for the actions of the designated
investment manager and neither the Company,  nor the Committee,  nor any trustee
of any trust that may be established in connection with the Plans shall have any
responsibility  for, or liability  with  respect to,  review or oversight of the
performance of the designated investment manager.

Section 16.  Severability.

The  provisions  of  this  Plan  shall  be  severable,  and if any  one or  more
provisions shall be considered or held to be invalid or unenforceable,  or shall
result in a portion of the Plan being treated as a pension plan under Title I of
ERISA, the remaining provisions shall continue to be valid and enforceable.

Section 17.  Cost to be Borne by Subsidiary.

If any payment under this Plan is to be made to an Eligible  Employee on account
of any  employee's  service for a subsidiary  of the  Company,  the cost of such
payment shall be borne in such  proportions  as the Company and such  subsidiary
shall determine.



                                       49
<PAGE>



Section 18.  Administration.

The Plan shall be  administered  by the Committee.  The Committee shall construe
and  interpret  the Plan and may  adopt  rules  and  regulations  governing  the
administration  of the Plan, as well as exercise any duties and powers conferred
on it by the  terms of the Plan.  The  Committee  shall  act by vote or  written
consent of a majority  of its members or  otherwise  as in  accordance  with its
general procedures as in effect from time to time.

Section 19.  Amendment.

This  Plan  may at  any  time  or  from  time  to  time  be  amended,  modified,
discontinued  or  terminated  by the Board if,  in its sole  discretion,  such a
change is deemed necessary and desirable.

Section 20.  Governing Law.

This Agreement shall be governed by and construed in accordance with the laws of
the State of New York.

IN WITNESS WHEREOF, the Company has caused the Company's Supplemental Retirement
Plan,  as  amended,  to be duly  adopted  and  executed  by its duly  authorized
officers and its corporate seal affixed hereto as of October 8, 1999.


ATTEST:                                              ASARCO Incorporated



/s/Susana D. Delanney                                By:/s/F.R. McAllister
Assistant Secretary                                  Chairman of the Board







                                       50
<PAGE>



Exhibit 12 Statement re Computation of  Consolidated  Ratio of Earnings to Fixed
Charges and Combined Fixed Charges and Preferred Share Dividend Requirements
<TABLE>
<CAPTION>



                                                      Three              Three                Nine               Nine
                                                     Months              Months              Months             Months
                                                      Ended              Ended               Ended               Ended
                                                   September 30,     September 30,       September 30,       September 30,
                                                      1999                1998                1999               1998
                                                      -----              -----               -----               -----
                                                     (Dollars in    thousands)              (Dollars in     thousands)

NET EARNINGS (LOSS)                                   $(5,060)          $(15,597)           $(61,441)           $(61,946)
<S>                                                         <C>                 C>              <C>                <C>
  Adjustments
     Taxes (benefit) on Income                         (8,471)              (943)            (33,554)            (16,918)
     Equity Earnings                                   (1,004)              (900)             (3,148)             (2,805)
     Dividends received from
C      non-consolidated companies                       1,535              1,896               2,010               3,992
     Total Fixed Charges                               23,486             23,707              69,805              65,595
     Interest Capitalized                              (2,641)            (2,988)             (6,328)             (8,264)
     Capitalized Interest                                 382               (525)              1,097               1,189
      amortized
  Minority interest                                     5,878              9,921               9,760              25,157
                                                       -------             -------            -------            -------

EARNINGS (LOSS)                                      $ 14,105           $ 14,571            $(21,799)           $  6,000
                                                    ===========        ===========         ===========        ===========
FIXED CHARGES
     Interest Expense                                $ 18,639           $ 17,665            $ 56,976            $ 51,523
     Interest Capitalized                               2,641              2,988               6,328               8,264
     Imputed Interest Expense                           2,206              3,054               6,501               5,808
                                                     --------            --------            --------            --------
TOTAL FIXED CHARGES                                  $ 23,486           $ 23,707            $ 69,805            $ 65,595
                                                   ===========         ===========         ===========         ===========
Ratio of Earnings to Fixed Charges                        (a)                (a)                 (b)                 (b)
                                                        =====              =====               =====               =====
(a)      For the quarter ended September 30, 1999 and 1998 earnings were insufficient to cover
         fixed charges by $9,381 and $9,136, respectively.

(b)      For the nine months ended September 30, 1999 and 1998 earnings were insufficient to
         cover fixed charges by $91,604 and $59,595, respectively.

</TABLE>



                                       51
<PAGE>






Exhibit 15 Independent Accountant's Awareness Letter



PricewaterhouseCoopers LLP





Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C.  20549


We are aware  that our  report  dated  November  11,  1999 on our  review of the
interim  financial  information of ASARCO  Incorporated  and  Subsidiaries as of
September  30,  1999 and for the  three  month  and  nine  month  periods  ended
September 30, 1999 and 1998 and included in this Form 10-Q for the quarter ended
September 30, 1999 is  incorporated  by reference in the Company's  Registration
Statements  on Form  S-8  (File  Nos.  2-67732,  2-83782,  33-34606,  333-16875,
333-18083  and  333-46181)  and Form  S-3  (File  Nos.  33-45631,  33-55993  and
333-02359).  Pursuant  to Rule 436(c)  under the  Securities  Act of 1933,  this
report should not be considered a part of the Registration  Statements  prepared
or certified by us within the meaning of Sections 7 and 11 of that Act.





                                                     PricewaterhouseCoopers LLP




New York, New York
November 12, 1999




                                       52

<TABLE> <S> <C>


<ARTICLE>                     5

<MULTIPLIER>                                   1000

<S>                                            <C>
<PERIOD-TYPE>                                  9-mos
<FISCAL-YEAR-END>                              Dec-31-1999
<PERIOD-START>                                 Jan-1-1999
<PERIOD-END>                                   Sep-30-1999
<CASH>                                         151675
<SECURITIES>                                   1084
<RECEIVABLES>                                  388449
<ALLOWANCES>                                   10723
<INVENTORY>                                    347557
<CURRENT-ASSETS>                               982777
<PP&E>                                         4876137
<DEPRECIATION>                                 2255207
<TOTAL-ASSETS>                                 4033235
<CURRENT-LIABILITIES>                          642720
<BONDS>                                        0
                          0
                                    0
<COMMON>                                       529313
<OTHER-SE>                                     930345
<TOTAL-LIABILITY-AND-EQUITY>                   4033235
<SALES>                                        1470155
<TOTAL-REVENUES>                               1470155
<CGS>                                          1280488
<TOTAL-COSTS>                                  1280488
<OTHER-EXPENSES>                               274034
<LOSS-PROVISION>                               270
<INTEREST-EXPENSE>                             56976
<INCOME-PRETAX>                                (85235)
<INCOME-TAX>                                   (33554)
<INCOME-CONTINUING>                            (51681)
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   (61441)
<EPS-BASIC>                                  (1.55)
<EPS-DILUTED>                                  (1.55)




</TABLE>


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