SOUTHERN PERU COPPER CORP/
10-K405, 1999-03-24
METAL MINING
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                        SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 1998 FORM 10-K

                ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934


   For the fiscal year ended December 31, 1998 Commission File Number: 1-14066

                        SOUTHERN PERU COPPER CORPORATION
             (Exact name of registrant as specified in its charter)


           Delaware                                   13-3849074     
 (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


           Securities registered pursuant to Section 12(b) of the Act:

                                                 Name of each exchange
               Title of each class                on which registered         
 Common Stock, par value $0.01 per share         New York Stock Exchange
                                                 Lima Stock Exchange

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 [ ]

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best knowledge of the registrant,  in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment of this
Form 10-K. [ ]

As of February 26, 1999, there were of record 13,962,062 shares of Common Stock,
par value $0.01 per share,  outstanding,  and the aggregate  market value of the
shares of Common Stock (based upon the closing price on such date as reported on
the New York Stock  Exchange - Composite  Transactions)  of Southern Peru Copper
Corporation  held by nonaffiliates  was  approximately  $138 million.  As of the
above date, there were also 65,900,833 shares of Class A Common Stock, par value
$0.01  per  share,  outstanding.  Class  A  Common  Stock  is  convertible  on a
one-to-one basis into Common Stock.

PORTIONS OF THE FOLLOWING DOCUMENTS ARE INCORPORATED BY REFERENCE:

Part III: Proxy  statement in connection with the Annual Meeting to be held
          on April 29, 1999.

Part IV:  Exhibit index is on page B1 through B3.

<PAGE>
                                      A-1

                                                          

                                     PART I

Item 1.  Business
                                   THE COMPANY

The Company is an integrated producer of copper which operates mining,  smelting
and refining  facilities  in the  southern  part of Peru.  Southern  Peru Copper
Corporation was reorganized into a holding company  structure  effective January
2, 1996, upon completion of a public offer to exchange newly-issued Common Stock
for outstanding labor shares of the Company's  Peruvian Branch ("Labor Shares").
Effective  December  31,  1998,  the  Company's   predecessor  and  wholly-owned
operating subsidiary, Southern Peru Limited, was merged into the Company.

The Company,  incorporated  in 1952 was  reorganized  in 1955 and has  conducted
copper  mining  operations  since 1960.  Pursuant to Peruvian  law,  the Company
conducts its operations in Peru through a registered branch (the "Branch").  The
Branch is not a  corporation  separate  from the  Company.  It is,  however,  an
establishment,  registered  pursuant to Peruvian law,  through which the Company
holds assets,  incurs liabilities and conducts  operations in Peru.  Although it
has neither its own capital nor liability separate from that of the Company,  it
is deemed to have an equity  capital for  purposes of  determining  the economic
interest  of holders of labor  shares.  Labor  shares are  non-voting  ownership
interests  distributed to workers in accordance  with former  Peruvian laws. The
Branch  comprises  substantially  all the assets and  liabilities of the Company
associated with its copper operations in Peru.

Throughout  this  report,  unless  the  context  otherwise  requires,  the terms
"Southern Peru",  "SPCC" and "the Company" refer to the present  corporation and
its  consolidated  subsidiaries  as  well  as  its  predecessor.   In  addition,
throughout this report,  unless  otherwise noted, all tonnages are in short tons
and all ounces are troy ounces.

At December 31, 1998 the  stockholders  in the Company were ASARCO  Incorporated
(54.3%),  Cerro Trading  Company,  Inc.  (14.2%),  Phelps Dodge Overseas Capital
Corporation (14.0%) and common stockholders (17.5%).

Reference is made to the following Financial Statement footnote included in this
report: Net Sales in Note 5.

                              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.

Additional business information follows:

COPPER BUSINESS

The copper  operations of the Company involve the mining,  milling and flotation
of  copper  ore  to  produce  copper   concentrates,   the  smelting  of  copper
concentrates  to produce  blister  copper and the refining of blister  copper to
produce copper cathode.


<PAGE>
                                      A-2


The Company also produces refined copper using solvent extraction/electrowinning
("SX/EW") technology.  Silver,  molybdenum and small amounts of other metals are
contained in copper ore as by-products. Silver sold is recovered in the refining
process or as an element of blister copper.  Molybdenum is recovered from copper
concentrate  in a  molybdenum  by-product  plant.  The Company has not  reported
information by industry  segments because  substantially all of its revenues are
generated from its copper production.


                              REVIEW OF OPERATIONS

SPCC operates the Toquepala and Cuajone mines, high in the Andes,  approximately
400 miles southeast of Lima. It also operates a smelter and refinery west of the
mines at the Pacific Coast city of Ilo, Peru. SPCC is the largest mining company
in Peru and one of the 10 largest  private-sector copper mining companies in the
world.


OVERVIEW

Mine copper  production  at SPCC  declined in 1998 due to the impact of extended
heavy  rains and  expected  interruptions  associated  with the  startup  of the
expanded  concentrator  at  Cuajone.  Smelter  and  refinery  output  increased,
however,  due to improved operating  efficiencies and the treatment of purchased
concentrates.  Low-cost  copper  production from the SX/EW facility at Toquepala
increased 6%, also as a result of improved operating practices.

SPCC currently has a major,  $1.2 billion  expansion and  modernization  program
underway that includes expansions of the Cuajone mine, the SX/EW facility at the
Toquepala mine, and the Ilo smelter.  The modernization  project at Ilo will use
flash smelting and flash converting  technology to increase  production capacity
and enhance  environmental  controls.  Expansion of the mill at the Cuajone mine
was completed in 1998 and  commissioning  is in progress.  Modernization  of the
mining  equipment  at Cuajone will  continue for another two years.  Engineering
began on modernization  and expansion of the Ilo smelter.  The expansion program
at Cuajone and Ilo will further improve  productivity,  reduce  operating costs,
increase copper production and is expected to significantly increase the capture
of sulfur dioxide to in excess of 99%.


MINING OPERATIONS

Total mined copper  production  at SPCC  decreased  2.8% in 1998,  compared with
1997, due to lower production at Cuajone.

Cuajone production decreased 7% in 1998 to 316 million pounds due principally to
production  interruptions  during  the  integration  of  the  expansion  at  the
concentrator  and the  impact  of heavy  rains.  Normal  startup  delays  at the
concentrator  reduced  concentrate   production  at  Cuajone  during  the  year.
Concentrator  throughput for the year was 21.7 million tons of ore producing 570
thousand tons of copper concentrates.  Flooding and power interruptions hampered
mining early in 1998 but the mine recovered later in the year and fourth quarter
1998 production was 8% greater compared with the same period of the prior year.

Toquepala  mine  production  for the year was 247 million  pounds  equaling 1997
production.  The  Toquepala  concentrator  milled  18.0  million  tons  of  ore.
Together,  the two mines  produced 2.9 million  ounces of silver and 9.6 million
pounds of molybdenum as by-products.

<PAGE>
                                      A-3


New  drills,  trucks  and a shovel  were added at the  Cuajone  mine in 1998 and
older,  less efficient  equipment was retired.  As part of the Cuajone expansion
project,  two grinding  mills,  flotation  equipment,  a vertical  regrind mill,
pressure filters,  a reclaimed water pumping station and other enhancements were
added to the Cuajone concentrator.


SX/EW OPERATIONS

The SX/EW facility at Toquepala  produces refined copper from solutions obtained
by leaching low-grade ore stored at the Toquepala and Cuajone mines. Higher than
anticipated  production  through most of the year offset  production losses from
the first quarter when the operations were hampered by power  interruptions  and
flooding.  The facility  produced 5.9 million pounds more copper in 1998 than in
1997.  The SX/EW plant obtained  registration  during the year from the New York
Commodity  Exchange  (COMEX),   certifying  cathode  quality  and  complementing
certification previously obtained from the London Metal Exchange (LME).


ORE RESERVES

SPCC  identified   substantial  additional  mineralized  material  in  1996  and
continues to evaluate the extent of those  resources.  At year-end 1998,  proven
and probable  sulfide reserves totaled 1,401 million tons with an average copper
grade of 0.64% at Cuajone and 295 million  tons with an average  copper grade of
0.83% at Toquepala. An additional 209 million tons of mineralized material at an
average  copper  grade of 0.56% at Cuajone  and 330  million  tons at an average
copper grade of 0.65% at Toquepala still are being  evaluated.  Further drilling
is also  underway  at  Toquepala  to  define  and  identify  additional,  deeper
reserves. In addition, the Company has 794 million tons of leachable,  low-grade
ore that can be processed economically by the SX/EW operation.


SMELTING AND REFINING OPERATIONS

The Ilo smelter  increased its  production of blister copper by 1% compared with
1997 by treating concentrates with higher copper contents. The smelter increased
its  purchase  of  concentrates  from  others  to offset  decreased  concentrate
production primarily at Cuajone. Improved productivity at the smelter offset the
effect of  production  curtailments  under the  Company's  Supplemental  Control
Program (SCP) to control emissions from the smelter.

SPCC's total refined copper production,  including the 104.0 million pounds from
the SX/EW plant, increased 6% to 647.4 million pounds in 1998 from 611.5 million
pounds in 1997.  Refined  production from the Ilo refinery reached 543.4 million
pounds in 1998.  SPCC has spent $20.0  million in recent years to modernize  the
Ilo  refinery,  which was  purchased  in 1994 from a  Peruvian  government-owned
entity.  Installation of acid-resistant polymer cells and a new rectifier in the
tank house  increased  capacity  by almost 30% to 540  million  pounds of copper
cathode per year.  SPCC's Ilo smelter  provides feed for the  refinery.  Blister
copper produced by the smelter exceeds the refinery's capacity and the excess is
sold to other refineries around the world.


EXPANSION AND MODERNIZATION PROGRAM

Excellent progress is being made on the $1.1 billion expansion and modernization
program originally  announced by the Company in 1996. The major expansion of the
Cuajone mine and  expansion and  modernization  of the Ilo smelter will increase
copper  production and is expected to improve the sulfur dioxide capture rate to
over 99%.

<PAGE>
                                      A-4


Most  of the  $245  million  Cuajone  mine  expansion  was  completed  in  1998.
Acquisition of new mining  equipment  will continue for the next two years.  The
expansion will increase mined copper output at Cuajone by 130 million pounds per
year,  increasing  the  Company's  total  production  by 19%. New  equipment and
processes  were  installed  at the  Cuajone  concentrator  in 1998,  testing and
calibration  continues  and the  expanded  facility is expected to reach  design
rates of production by the end of the first quarter of 1999.

Engineering for the  modernization and expansion of the Ilo smelter began during
the year. The $875 million Ilo smelter project consists of installation of a new
single line flash smelting furnace and a single line flash converting furnace to
process 1.25 million tons of  concentrate  per year.  The project is designed so
that the smelter's existing furnaces can continue to operate while the new flash
furnaces are brought on-line, enabling SPCC to maintain normal production during
the new  facilities'  startup  period.  The  Company's  use of flash  converting
technology will provide significant material handling advantages and will permit
improved capture of sulfur dioxide.  When the smelter modernization is complete,
the smelter is expected to have a sulfur  capture rate in excess of 99% and will
meet or  exceed  current  Peruvian  standards  and  international  environmental
guidelines.

Permits  were  received  late in the year to proceed  with  construction  of the
Torata  River  Flood  Control  Project.  To divert the Torata  River  around the
proposed  Cuajone pit  expansion,  SPCC will  construct a dam and  approximately
eight kilometers of tunnel and pipelines.  The project will protect the expanded
pit from flooding  during major storm events,  alleviate  periodic  flooding for
neighbors  down-river  from the mine and make a  portion  of the  current  river
valley  available  for  placement  of mine waste  material.  Field  construction
activities  for the $75.5 million  project are scheduled to begin this year with
completion scheduled for 2001.

A third stage of the expansion and modernization  program is under consideration
which includes an additional expansion of the Cuajone mine and further expansion
of the Ilo  smelter.  Additional  mining  equipment  and a new SAG mill would be
added at Cuajone to  increase  total  annual  copper  production  by 240 million
pounds, or 30% of total production. The decision to proceed with the third stage
expansion  will be  based  on  copper  prices,  availability  of  financing  and
completion  of the  current  program.  When all of the  expansion  projects  are
completed, SPCC will produce 930 million pounds of copper per year, or 1.4 times
1998 production.


EXPLORATION

SPCC has an active  exploration  program  focusing  on copper  and  gold-bearing
properties.  The Company  currently  has rights to conduct  exploration  on over
275,000 hectares of land in Peru.

The Tantahuatay  project,  owned 44% by SPCC, has focused on defining a shallow,
heap-leachable  gold  oxide  resource,   underlaid  by  a  large,  disseminated,
copper-gold  sulfide  resource.  Preliminary  studies  are  being  conducted  to
determine the viability of developing the gold resource.

Several  other  copper and gold  projects,  wholly  owned by the  Company,  were
drilled in 1998 and show  encouraging  results.  Those  projects  continue to be
evaluated.  SPCC's  exploration  activities  are  independent  from  exploration
activities of its founding shareholders.

<PAGE>
                                      A-5


                                   ENVIRONMENT

In addition to the expansion and modernization of the Ilo smelter, Southern Peru
continues to install new  facilities  and implement new operating  procedures to
further reduce the impact of its operations on the environment.  An expansion of
the Ilo smelter  acid plant  commenced  operations  during the first  quarter of
1998,  capturing  all of the off-gases  from the Modified El Teniente  Converter
(CMT),  or 30% of the  smelter's  total  emissions.  The original  sulfuric acid
plant,  completed  in 1995,  captured  60% of the CMT  off-gases,  or 18% of the
smelter's total  emissions.  With the addition,  the acid plant produced 307,100
tons of sulfuric acid in 1998.  Part of the acid produced is used by the Company
to leach ore at its SX/EW  operation;  the balance is sold in regional  markets.
Southern  Peru  also  uses  its  SCP to  control  sulfur  dioxide  emissions  by
curtailing production during periods of adverse weather. The acid plants and the
SCP program have been effective in improving air quality in the Ilo area.

                         PRINCIPAL PRODUCTS AND MARKETS

The  principal  uses of copper are in the  building and  construction  industry,
electrical and electronic products and, to a lesser extent, industrial machinery
and  equipment,   consumer  products  and  the  automotive  and   transportation
industries. Silver is used for photographic,  electrical and electronic products
and, to a lesser extent, brazing alloys and solder, jewelry, coinage, silverware
and  catalysts.  Molybdenum is used to toughen alloy steels and soften  tungsten
alloy and is also used in fertilizers, dyes, enamels and reagents.

During  1998,  1997,  and  1996,  substantially  all  of  the  Company's  copper
production was exported from Peru and sold to customers in Europe, the Far East,
the United  States and  elsewhere in Latin  America.  A  substantial  portion of
SPCC's copper sales is made under annual contracts to industrial  users.  Silver
is sold  under  annual  contracts  or in spot  sales and  molybdenum  is sold in
concentrate  form to merchants and other refiners under annual  contracts.  Most
customers  receive  shipments on a monthly basis at a constant volume throughout
the year. As a result there is little seasonality in SPCC sales volumes.

                                BACKLOG OF ORDERS

Substantially  all of the  Company's  metal  production  is  sold  under  annual
contracts. To the extent not sold under annual contracts, production can be sold
on commodity exchanges or in spot sales. Final sales values are determined based
on prevailing  commodity  prices for the quotation  period,  generally being the
month of, the month prior to or the month  following  the actual or  contractual
month of shipment or delivery according to the terms of the contract.


                             COMPETITIVE CONDITIONS

Competition  in the copper market is  principally  on a price and service basis,
with price being the most  important  consideration  when supplies of copper are
ample. The Company's  products compete with other materials,  including aluminum
and plastics.

                                    EMPLOYEES

At December  31, 1998 the  Company  employed  4,557  persons,  about  fifty-five
percent of whom were covered by labor  agreements with nine labor unions.  There
were no labor strikes in 1998.

<PAGE>
                                      A-6


                       ENERGY MATTERS AND WATER RESOURCES

Electric power for the Company's operating  facilities is generated by a thermal
electric  plant owned and operated by Enersur  S.A. and located  adjacent to the
Ilo smelter. Power generation capacity is currently 150 megawatts.  In addition,
the  Company  has 30  megawatts  of power  generation  capacity  from waste heat
boilers in the smelter and two small hydro-generating  installations at Cuajone.
Power is distributed over a 139-mile, closed loop transmission circuit.

In 1997, the Company sold its Ilo power plant to Enersur S.A. and entered into a
20-year  power  purchase  agreement.   The  power  purchase  agreement  contains
provisions  obligating Enersur S.A. to construct additional capacity upon notice
to meet the  Company's  increased  electricity  requirements  from  the  planned
expansion and modernization.  The parties also entered into an agreement for the
sharing of certain services between the power plant and the Company's smelter at
Ilo. Under this  agreement,  the Company's cost of power will increase  somewhat
from its 1996 level,  while the  Company  will  benefit by avoiding  significant
capital  expenditures  that would be required to meet the needs of the  expanded
operations.

SPCC has water concessions for well fields at Huaitire and Titijones and surface
water rights from Lake Suches.

                              ENVIRONMENTAL MATTERS

The Company anticipates spending $75.9 million for environmental control capital
expenditures in 1999.  Capital  expenditures  in connection  with  environmental
projects were  approximately  $25.3  million in 1998,  $47.8 million in 1997 and
$24.6 million in 1996.  See  "Management's  Discussion and Analysis of Financial
Condition  and Results of  Operation -  Environmental  Matters"  which is herein
incorporated by reference.

                                   CONCESSIONS

The Company has concessions  from the Peruvian  government for its  exploration,
exploitation,   extraction  and/or  production  operations  (collectively,   the
"Concessions").  The Concessions  are in full force and effect under  applicable
Peruvian  laws, and the Company  believes it is in compliance  with all material
terms and  requirements  applicable to the  Concessions.  The  Concessions  have
indefinite terms,  subject to payment by SPCC of concession fees of up to $2 per
hectare annually for the mining  concessions and a fee based on nominal capacity
for the  processing  concessions.  Fees  paid  during  1998  were  approximately
$273,000.

                                REPUBLIC OF PERU

Substantially all of the Company's revenues are derived from the Toquepala mine,
the Cuajone mine, the SX/EW facility and the smelter and refinery at Ilo, all of
which are located  within a 30-mile  radius in the southern part of Peru.  Risks
attendant to the  Company's  operations in Peru include  those  associated  with
economic  and  political  conditions,   effects  of  currency  fluctuations  and
inflation, effects of government regulations and the geographic concentration of
the Company's operations.

<PAGE>
                                      A-7


Item 2.  Properties


                                   FACILITIES

The Company's  principal  executive  offices are located at 180 Maiden Lane, New
York,  New York 10038 and  Avenida  Caminos  del Inca No.  171,  Chacarilla  del
Estanque,  Santiago de Surco,  Lima 33, Peru. At December 31, 1998, the Company,
through its Peruvian  Branch,  has 100%  interest in the  Toquepala  and Cuajone
mines, the SX/EW facility,  the Ilo smelter, the sulfuric acid plant and the Ilo
refinery and operates them pursuant to concessions from the Peruvian Government.
See Item 1  "Business--Concessions".  The Company owns,  through the Branch, its
offices in Lima.  Its offices in New York are  located in space  leased to it by
Asarco.  Its offices in Miami are leased by the  Company.  The Company  believes
that its existing  properties are in good condition and suitable for the conduct
of its business.

The  offices  and the  Company's  major  facilities,  together  with  production
commencement dates, are listed below:

                    PERU                        UNITED STATES

Toquepala  Mine -southern Peru (1960)    Executive  Offices -- New York, NY
Cuajone Mine -southern Peru (1976)       Logistics  Services,  Inc.,  Miami, FL
SX/EW  Facility -southern Peru (1995)
Ilo Smelter -Ilo, Peru (1960)
Ilo Refinery -Ilo, Peru  (1994-SPCC)
Acid Plant -- Ilo, Peru (1995)
Executive Offices -Lima, Peru

The Company  also owns and operates a railroad  connecting  the mines at Cuajone
and Toquepala with the smelting and refining  facilities at Ilo and a port which
are located  approximately 122 rail miles from the two mines sites, which are at
elevations ranging from 3,220 to 3,330 meters. In addition, the Company provides
housing, hospitals and schools for employees and their families.

<PAGE>
                                      A-8

<TABLE>

METAL PRODUCTION STATISTICS


<CAPTION>

                           1998      1997      1996      1995      1994
- ------------------------------------------------------------------------------
- ------------------------------------------------------------------------------
<S>                        <C>       <C>       <C>       <C>       <C>    
 Copper Production


 MINES (contained copper in thousands of pounds)
 Toquepala ..............   246,783   246,818   252,928   256,128   223,594
 Cuajone ................   315,640   340,551   332,014   290,982   312,074
 SX/EW ..................   104,026    98,153    93,170    10,012      -
- --------------------------------------------------------------------------------
    Total Mines .........   666,449   685,522   678,112   557,122   535,668
- --------------------------------------------------------------------------------
 SMELTER (contained copper in thousands of pounds)
 SPCC concentrates ......   536,036   575,061   589,994   537,522   536,864
 Purchased concentrates .   111,732    63,679    43,614    96,934   107,342
- --------------------------------------------------------------------------------
    Total Smelter .......   647,768   638,740   633,608   634,456   644,206
- --------------------------------------------------------------------------------
 REFINERIES (thousands of pounds of copper)
 Ilo (a) .................. 543,404   513,315   439,600   432,414   421,342
 SX/EW .................... 104,026    98,153    93,170    10,012      -
- --------------------------------------------------------------------------------
     Total Refineries ......647,430   611,468   532,770   442,426   421,342
- --------------------------------------------------------------------------------
 COPPER SALES (thousands of pounds)
 Refined .................. 542,786   514,320   439,400   436,638   424,776
 In blister ............... 105,374   110,412   162,418   200,592   228,346
 Concentrates .............      17    19,955      -         -         -
 SX/EW .................... 103,937    99,297    92,472     9,374      -
- --------------------------------------------------------------------------------
   Total sales of copper .. 752,114   743,984   694,290   646,604   653,122
- --------------------------------------------------------------------------------

 LME average price (cents
    per pound) ............      75       103       104       133       105


 Molybdenum
  (thousands of pounds contained in concentrate)
 MINES
 Toquepala ................   6,039     6,066     4,483     3,674     3,058
 Cuajone ..................   3,520     3,329     4,257     4,334     3,062
- --------------------------------------------------------------------------------
    Total produced ........   9,559     9,395     8,740     8,008     6,120
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
 Sales of, molybdenum
  In concentrate ..........   9,677     9,398     8,813     8,402     5,698
- --------------------------------------------------------------------------------
 Metals Week Dealer
  Oxide mean price($/lb.)    $ 3.41    $ 4.30    $ 3.78    $ 7.90    $ 4.69

<PAGE>
                                      A-9


 Silver (thousands of ounces)

- --------------------------------------------------------------------------------
 SMELTER (in blister)
 Ilo - SPCC Concentrates      2,890     3,146     3,097     2,958     2,979
- --------------------------------------------------------------------------------
 REFINERY (b)
 Ilo                          2,735     2,462     2,218     2,519     2,131
- --------------------------------------------------------------------------------
 SALES OF SILVER
 Refined (b)                  2,724     2,397     2,282     2,597     1,947
 In blister                     564       576       828     1,164     1,237
 In concentrates                  -       113         -         -         -
- --------------------------------------------------------------------------------
    Total sales of silver     3,288     3,086     3,110     3,761     3,184
- --------------------------------------------------------------------------------

COMEX average price($/oz.)   $ 5.51    $ 4.88    $ 5.18    $ 5.18    $ 5.28

- --------------------------------------------------------------------------------
<FN>


(a)  The Ilo refinery was  purchased by the Company in May 1994.  The data prior
     to the  acquisition  also includes  cathode  production  for SPCC on a toll
     basis.

(b)  Prior to the acquisition of the refinery,  silver  contained in blister was
     sold by SPCC. The refinery  production reflects the total silver production
     by the refinery  before and after its  acquisition  by SPCC.  The "Sales of
     Silver - Refined"  amount reflects the silver sold to the refinery prior to
     the  acquisition  and the  refined  silver  sold by the  Company  after the
     acquisition.
</FN>
</TABLE>

<PAGE>
                                      A-10


METAL PRODUCTION STATISTICS

COPPER RESERVES


                           Mineral    Average
                           Reserves    Copper          Metal Production
                            (000s     Content          Contained Metal
                             Tons)      (%)             (000s Pounds)
                                               ------------------------------
                           12/31/98  12/31/98      1998      1997      1996
                           --------  --------      ----      ----      ----

Toquepala    Sulfide        295,300     0.83    246,800   246,800   252,900
             Leachable      725,000     0.19     93,700    87,900    88,600

Cuajone      Sulfide      1,400,600     0.64    315,600   340,600   332,000
             Leachable       68,700     0.49     10,300    10,300     4,600


The  Company has ongoing  exploration  programs in Peru.  Results of drilling at
Toquepala and Cuajone have  identified  mineralized  material  consisting of 330
million  tons grading  0.65%  copper at  Toquepala  and 209 million tons grading
0.56% at  Cuajone.  This  mineralized  material  will not  qualify as proven and
probable  reserves  until such time as a final and  comprehensive  economic  and
technical   feasibility  study  has  been  completed   demonstrating  that  such
additional material can be economically mined.

The Company  calculates its ore reserves by methods generally applied within the
mining  industry and in accordance  with the  regulations  of the Securities and
Exchange Commission. All mineral reserves are estimated quantities of proven and
probable ore that under present and  anticipated  conditions may be economically
mined and processed by the extraction of their mineral content.

The following ore production information is provided:

                         1998               1997               1996
                    Ore        Avg.     Ore      Avg.      Ore      Avg.
                   Milled      Mill    Milled    Mill     Milled    Mill
                   (000s    Recovery   (000s    Recovery  (000s    Recovery
                    Tons)   Rate (%)    Tons)   Rate (%)   Tons)   Rate (%)
                    -----   --------    -----   --------   -----   --------

Toquepala          18,011     88.49%   18,998     87.90%   18,609     84.20%
Cuajone            21,699     85.62%   21,719     87.00%   21,249     81.71%


The following productive capacity is provided:


                           Defined Capacity (a)
                           --------------------
Ilo Smelter                    320,000 tons
Ilo Refinery                   270,000 tons
Toquepala - SX/EW               50,000 tons

(a)  SPCC's estimate of actual capacity under normal  operating  conditions with
     allowance for normal  downtime for repairs and maintenance and based on the
     average  metal  content of input  material  for the three years  shown.  No
     adjustment is made for shutdowns or production  curtailments due to strikes
     or air quality emissions restraints.

<PAGE>
                                      A-11


Item 3.  Legal Proceedings

Reference is made to the information under the caption "Litigation" in Financial
Statement  Footnote 17 "Commitments and  Contingencies" on page A45 incorporated
herein by reference.



Item 4.  Submission of Matters to a Vote of Security Holders

None.


<PAGE>
                                      A-12


Executive Officers of the Registrant

Set forth  below are the  executive  officers of the  Company,  their ages as of
February 28, 1999, and their positions.
    Name                        Age              Position
    ----                        ---              --------
Richard de J. Osborne           64    Chairman of the Board and Director
Charles G. Preble               66    President, Chief Executive Officer 
                                      and Director
Charles B. Smith                60    Executive Vice President and Chief
                                      Operating Officer
Ronald J. O'Keefe               56    Executive Vice President
Thomas J. Findley, Jr.          51    Vice President and Chief Financial Officer
Kevin R. Morano                 45    Vice President and Director
Winston Cundiff, III            52    Vice President (Human Resources, Peru)
Hans A. Flury                   47    Vice President (Legal, Peru)
Guillermo D. Payet              60    Vice President (Finance, Peru)
Eduardo Santistevan             57    Vice President (Logistics, Peru)
Andrew T. Swarthout             47    Vice President (Exploration, Peru)
Frank R. Tweddle                39    Vice President (Commercial, Peru)
David J. Thomas                 54    Vice President (Operations, Peru)
Augustus B. Kinsolving          59    Secretary, General Counsel and Director
Brendan M. O'Grady              54    Comptroller
Christopher F. Schultz          47    Treasurer

Richard de J. Osborne,  Chairman of the Board of the Company since February 1996
and a director  since 1976. Mr. Osborne has been Chairman of the Board and Chief
Executive Officer of Asarco since 1985, its President from 1982 until 1998 and a
director since 1976.

Charles G. Preble,  President and Chief  Executive  Officer of the Company since
1985 and a director since 1984.

Charles B. Smith,  Executive Vice President and Chief  Operating  Officer of the
Company since February  1996.  From 1992 to February 1996, he was Vice President
and General  Manager  (Operations,  Peru).  From 1988 to 1992, he served as Vice
President-U.S. Operations for ARCO Coal Company (coal production and marketing).

Ronald J. O'Keefe,  Executive Vice President of the Company since February 1999.
Prior to that he was Executive Vice President and Chief Financial Officer of the
Company  since  April 1995.  Previously  he was  Controller  of Asarco from 1982
through March 1995.

Thomas J.  Findley,  Jr.,  Vice  President  and Chief  Financial  Officer of the
Company since  February 2, 1999.  From 1997 to February 1999, he was Director of
Development  for ASARCO  Incorporated.  Prior to that he was Treasurer of ASARCO
from 1992 to 1997. He was also Treasurer of the Company from 1996 to April 1998.

Kevin R. Morano, Vice President and a director of the Company since 1993. He has
been Executive Vice President,  Chief Financial Officer and a director of Asarco
since 1998,  previously its Vice  President-Finance  and Chief Financial Officer
from 1993 until 1998,  and general  manager of Asarco's Ray Complex from 1991 to
1993.

Winston  Cundiff,  III, Vice President  (Human  Resources,  Peru) of the Company
since September 1996. From 1995 to August 1996 he served as General  Director of
Human Resources for the Company. From 1991 to 1994, he served as Director, Human
Resources Training and Quality for Liquid Air Corporation.

Hans A. Flury, Vice President (Legal, Peru) of the Company since 1989.



<PAGE>
                                      A-13


Guillermo D. Payet,  Vice President  (Finance,  Peru) of the Company since 1991.
Prior to that, he was Vice President,  Finance and Logistics (Peru) from 1987 to
1991.

Eduardo Santistevan, Vice President (Logistics, Peru) of the Company since 1991.
From 1988 to 1990, he served as General  Maintenance  Superintendent.  He is the
brother-in-law of Charles G. Preble.

Andrew T. Swarthout,  Vice President (Exploration,  Peru) elected Vice President
on April 30, 1998. From December 1995 to April 1998, he was Director  General of
Exploration  for the Company.  Prior to that he was Manager of  Exploration  for
Peru for Asarco from May 1995 to November  1995.  From March 1993 to May 1995 he
was consultant to the Vice President, Exploration of Asarco.

Frank R. Tweddle,  Vice President  (Commercial,  Peru) elected Vice President on
May 1, 1997. From May 1994 to April 1997, he was Assistant Director of Marketing
for the  Company.  From 1988 to April  1994 he was Vice  President  Trading  for
Minpeco USA.

David J. Thomas, Vice President (Operations,  Peru) of the Company since October
1997. Prior to that he was Director of Project Development for Touchstone Mining
(Australia) from June 1996 to September 1997. From September 1993 to May 1996 he
was Director of Austpac Gold  (Australia).  From 1989 to August 1993 he was Vice
President of Mellon Bank.

Augustus  B.  Kinsolving,  Secretary,  General  Counsel  and a  director  of the
Company,  has been a director since 1989 and Secretary and General Counsel since
1994.  He has been a Vice  President of Asarco since 1983,  its General  Counsel
since 1986 and served as its Secretary from 1987 to 1995.

Brendan M. O'Grady,  Comptroller of the Company since 1992.  Previously,  he was
Assistant Comptroller from 1981 to 1992.

Christopher  F. Schultz,  Treasurer of the Company since April 1998. He has been
Treasurer  of Asarco  since 1997.  Prior to that he was  Assistant  Treasurer of
Asarco since 1993.


<PAGE>
                                      A-14


                                     PART II

Item 5.  Market For Registrant's Common Equity and Related Stockholder Matters

At December 31, 1998, there were 2,561 holders of record of the Company's Common
Stock.  SPCC's Common Stock is traded on the New York Stock Exchange  (NYSE) and
the Lima Stock Exchange  (BVL).  The SPCC Common Stock symbol is PCU on the NYSE
and PCUC1 on the BVL. The Common Stock  commenced  trading on the NYSE on a when
issued basis on January 5, 1996. Regular way trading commenced January 12, 1996.
On the BVL, the Common Stock commenced trading on January 5, 1996.

The table below sets forth the cash  dividends  paid per share of capital  stock
and the high and low stock  prices on both the NYSE and the BVL for the  periods
indicated.
<TABLE>

                                           1998                                                    1997
<CAPTION>
                                           ----                                                    ----

                   -------------------------------------------------------- -------------------------------------------------------
      Quarters        1st        2nd        3rd        4th       Year         1st        2nd        3rd        4th       Year
                   -------------------------------------------------------- -------------------------------------------------------
<S>                <C>        <C>        <C>        <C>        <C>          <C>       <C>        <C>        <C>        <C>  
  Dividend per
     share         $0.20      $0.08      $0.11      $0.12      $0.51        $0.30     $0.35      $0.37      $0.24      $1.26

  Stock market price
  NYSE:
     High          $15-1/8    $16-11/16  $13-1/2    $12-7/8    $16-11/16    $17-3/8   $21-1/8    $20-7/8    $18-1/4    $21-1/8
     Low           $12-1/2    $13        $8-3/4     $8-15/16   $8-3/4       $15       $16-7/8    $17-5/8    $12-3/4    $12-3/4

  BVL:
     High          $14.95     $16.50     $13.35     $12.70     $16.50       $17.35    $21.20     $21.06     $17.99     $21.20
     Low           $12.40     $12.95     $8.93      $8.89      $8.89        $14.85    $16.80     $17.30     $12.58     $12.58

</TABLE>

On February 2, 1999,  the Board of Directors of the Company  declared a dividend
of $0.03  per  share  payable  March 3,  1999 to  stockholders  of  record as of
February 22, 1999.

For a description  of limitations on the ability of the Company to make dividend
distributions,  see "Management's Discussion and Analysis of Financial Condition
and Results of  Operations-Liquidity  and Capital  Resources" and Note 12 to the
Consolidated Financial Statements of the Company.

<PAGE>
                                      A-15

<TABLE>

Item 6.  Selected Financial Data

FIVE-YEAR SELECTED FINANCIAL AND STATISTICAL DATA
(in millions, except per share and employee data)
<CAPTION>
                                                  1998         1997        1996         1995       1994

Consolidated Statement of Earnings:
<S>                                               <C>          <C>        <C>          <C>        <C>  
Net sales                                         $628         $814       $ 753        $ 929      $ 702
Operating costs and expenses (1)                   558          577         497          558        558
Operating income                                    70          237         256          371        144
Minority interest of labor shares in
   income of Peruvian Branch                         -            4           5           44         19

Net earnings                                       $55         $186       $ 181        $ 218        $91


Per Share Amounts (2):
Net earnings - basic and diluted                 $0.68        $2.32      $ 2.25       $ 3.31     $ 1.39
Dividends paid                                   $0.51        $1.26      $ 1.47       $ 1.27     $ 0.33

Consolidated Balance Sheet:
Total assets                                    $1,526       $1,561      $1,280       $1,272       $969
Cash and marketable securities                     198          331         174          262        136
Total debt                                         234          248         107           94        118
Stockholders' equity                             1,109        1,098       1,015          953        635

Consolidated Statement of Cash Flows:
Cash provided from operating activities           $181         $278       $ 159        $ 330      $ 135
Dividends paid                                      41          101         118           84         21
Capital expenditures                               259          184         121          183        182
Depreciation and depletion                          61           47          42           36         40

Capital Stock:
Common shares outstanding                         13.9         14.2        13.6         11.5       55.2
NYSE Price - high                            $16-11/16      $21-1/8        $ 21            -          -
           - low                                $8-3/4      $12-3/4     $13-7/8            -          -
Class A common shares outstanding                 65.9         65.9        66.6         68.8          -
Book value per share                            $13.88      $ 13.71     $ 12.66      $ 11.90     $ 9.67
P/E ratio                                        13.88         5.77        6.50            -          -

Financial Ratios:
Current assets to current liabilities              4.2          5.6         3.8          2.8        3.0
Debt as % of capitalization                       17.2%        18.2%        9.3%         8.8%      14.2%
Debt as % of capitalization, net of
   excess cash (3)                                 5.6%           -           -            -        1.7%

Employees (at year end)                          4,557        4,829       4,859        5,035      5,407

Notes to five year selected financial and statistical data
<FN>

(1)  Includes  provision  for workers'  participation  of $10.6  million,  $14.4
     million,  $18.0 million, $32.2 million and $13.9 million in the years ended
     December 31, 1998, 1997, 1996, 1995, and 1994, respectively.

(2)  Per share amounts are presented after giving retroactive effect to a 100 to
     1 stock split declared and made on November 4, 1994. In addition,  earnings
     per share are basic and diluted.

(3)  Available cash exceeded debt at December 31, 1997, 1996 and 1995.

</FN>
</TABLE>


<PAGE>
                                      A-16


 Item 7. Management's Discussion and Analysis of Financial Condition and Results
         of Operations



OVERVIEW

The Company's business is affected by the factors outlined below which should be
considered in reviewing the financial  position,  results of operations and cash
flows of the Company for the periods described herein.

Inflation  and  Devaluation  of the  Peruvian  Sol: A portion  of the  Company's
operating  costs are  denominated in Peruvian  soles.  Since the revenues of the
Company are primarily denominated in U.S. dollars, when inflation in Peru is not
offset  by a  corresponding  devaluation  of the sol,  the  financial  position,
results of operations and cash flows of the Company could be adversely affected.
The value of the net assets of the Company  denominated in soles can be affected
by devaluation  of the sol. The recent  inflation and  devaluation  rates are as
follows:

Years ended December 31,              1998          1997            1996
                                      ----          ----            ----

Peruvian Inflation Rate                6.0%          6.5%           11.8%
Sol/Dollar Devaluation Rate           15.7%          4.9%           12.1%

Peruvian  Branch:  The  consolidated  financial  statements  included herein are
prepared in U.S.  dollars and in accordance with generally  accepted  accounting
principles  in the United  States (US GAAP).  The  Peruvian  Branch (the Branch)
consists of substantially all the assets and liabilities of Southern Peru Copper
Corporation  (SPCC)  associated  with its copper  operations  in the Republic of
Peru.  The Branch is  registered  with the Peruvian  government as a branch of a
foreign  mining  company.  The  results of the Branch  are  consolidated  in the
financial statements of the Company.

The  Branch  maintains  its  books  of  account  in  soles,  prepares  financial
information in accordance with generally accepted accounting  principles in Peru
(Peruvian  GAAP).   Peruvian  GAAP  requires  the  inclusion  in  the  financial
statements of the Branch of the Resultado por Exposicion a la Inflacion  (Result
of Exposure to  Inflation),  which seeks to account for the effects of inflation
by adjusting the value of  non-monetary  assets and  liabilities and equity by a
factor  corresponding  to  wholesale  price  inflation  rates  during the period
covered by the financial statements.  Monetary assets and liabilities are not so
adjusted.

Expansion and Modernization  Project: In September 1996, the Company announced a
two-stage  project  which  includes  an  expansion  of the  Cuajone  mine and an
expansion and modernization of the copper smelter at Ilo. Total capital cost for
this project is estimated at $1.1 billion, budgeted to be spent through the year
2003.

Most  of the  $245  million  Cuajone  mine  expansion  was  completed  in  1998.
Acquisition of new mining  equipment will continue for the next two years.  When
completed,  the expansion  will  increase  mined copper output at Cuajone by 130
million pounds per year, or 19% of the Company's total production. Throughput at
the concentrator increased in December and is expected to reach design levels in
the first quarter of 1999.  Testing and  calibration of the expanded  facilities
are ongoing and the Company officially inaugurated the project in March 1999.

<PAGE>
                                      A-17


The second stage of the program,  the  expansion  and  modernization  of the Ilo
smelter will consist of installation of a new single line flash smelting furnace
and a single  line flash  converting  furnace to process  1.25  million  tons of
concentrate  per year. A major  advantage  incorporated  into the project is the
ability to operate  existing  furnaces  while the new flash furnaces are brought
on-line,  thereby minimizing production disruptions during the startup period of
the new facilities.  The Company has decided to use flash converting  technology
rather than  conventional  Peirce  Smith  converters  because  flash  converting
provides  significant  material handling advantages and achieves improved sulfur
capture. When the modernization program is completed, the smelter is expected to
have a  sulfur  capture  rate in  excess  of 99% and to meet or  exceed  current
international  environmental  guidelines.  The estimated  cost of the project is
$875 million and is expected to be completed by 2003.

In 1998,  the Company  commenced a $48 million  project to expand  annual  SX/EW
copper  production  by 26 million  pounds.  Engineering  design is underway  and
equipment purchases are being made. The project is on schedule and completion is
expected in the third quarter of 1999.

Late in the year, the Peruvian  government  approved the Company's  Torata River
Control  Project.  The project  will divert the Torata  River around the Cuajone
mine pit  expansion.  The $75.5  million  project  will  commence in 1999 and is
scheduled for completion in 2001.

An optional  third  stage of the  expansion  and  modernization  program,  would
include a second  expansion at Cuajone and further  expansion of the Ilo smelter
capacity. Consideration of whether to proceed with this third stage is dependent
on copper prices, the availability of financing and other conditions at the time
of  decision.  The  Company  expects  that the  projects  will be funded  from a
combination of existing cash, internally generated funds and external financing.


RESULTS OF OPERATIONS FOR THE YEARS ENDED
DECEMBER 31, 1998, 1997 AND 1996

SPCC reported 1998 net earnings of $54.6 million,  or diluted earnings per share
of 68 cents,  compared with net earnings of $185.7 million,  or diluted earnings
per  share of $2.32 in 1997 and net  earnings  of  $180.5  million,  or  diluted
earnings per share of $2.25 in 1996.

The decline in net earnings in 1998  compared with 1997 is primarily a result of
lower  copper  prices.  The average  price of copper in 1998 on the London Metal
Exchange  declined  28 cents per pound from 1997 to 75 cents per  pound,  and at
year end 1998 was 66 cents per pound. In addition to lower metal prices, results
for 1998 also reflect an increase in the  effective  income tax rate compared to
1997. The earnings  decrease was partially  offset by savings  realized from the
cost reduction program instituted by the Company in 1998.

In  April  1998,  SPCC  initiated   cost-reduction  and  production  enhancement
programs,  including  reductions in operating  expenses,  purchased services and
general and  administrative  expenses,  designed to reduce annual expense by $30
million  when fully  implemented.  The program is  estimated  to have  increased
pre-tax earnings by $25.7 million in 1998,  improving net after-tax  earnings by
$15.8  million,  or 20 cents per share.  In 1999,  the  program is  expected  to
improve net earnings by $17 million, or 21 cents per share.

In connection with the cost reduction program the Company recorded a $10 million
pre-tax charge in the first quarter of 1998 for severance costs. In addition, in
the fourth quarter of 1998 the Company  transferred  title to a major portion of
the Ilo townsite to its worker  occupants  and the City of Ilo.  Titles to 1,344
individual homesites were transferred.  The Company recorded a pre-tax charge of
$10.9 million in 1998 to write-off the remaining book value of the transferred

<PAGE>
                                      A-18




property and to provide for other costs  associated  with the  divestiture.  The
Company  expects  future  savings as a result of the  transfer  of the  townsite
through reduced maintenance costs.

The  improvement  in net  earnings  in 1997  compared  with 1996 was largely the
result of a lower  effective  income  tax rate,  offset in part by higher  power
costs.

In 1997,  the  Government  of Peru  approved a  reinvestment  allowance  for the
Company's  program to expand the  Cuajone  mine.  Pursuant  to the  reinvestment
allowance,  the Company  receives  certain tax  incentives in Peru. As a result,
U.S. tax credit  carryforwards for which no benefit had previously been recorded
were utilized.  Principally because of the reinvestment  program,  the Company's
effective tax rate was lower in 1997,  compared with the prior year,  increasing
net earnings by approximately $14.7 million.

As a result of the expansion program,  electric power requirements will increase
significantly  requiring the construction of additional  generating capacity. In
the second  quarter of 1997,  the Company  sold its  existing  power plant to an
independent  power company for $33.6  million.  In  connection  with the sale, a
power purchase  agreement was also completed,  under which the Company agreed to
purchase  its power needs for twenty  years.  Under the  agreement,  the cost of
power will  increase  somewhat  from its 1996 level,  however,  the Company will
avoid the significant  capital  expenditures  that would be required to meet the
needs of expanded operations.

Net Sales:  Net sales in 1998 were $627.9 million,  compared with $814.2 million
in 1997 and $753.0 million in 1996.  Sales  decreased in 1998 by $186.3 million,
largely as a result of lower copper  prices,  offset  somewhat by an increase in
copper and molybdenum volume.  Copper sales volume was 8.1 million pounds higher
in 1998 compared with 1997. Sales of copper produced at Company mines,  however,
decreased by 6.5 million pounds in 1998 as compared with 1997.

Copper sales volume was 49.7 million  pounds  higher in 1997 compared with 1996.
Of this increase, 46.4 million pounds were from purchased concentrates.

At December 31, 1998,  the Company has recorded  sales of 27.5 million pounds of
copper at a provisional price of 66 cents per pound.  These sales are subject to
final  pricing  based on the average  monthly  LME copper  price in the month of
settlement which will occur in the first quarter of 1999.

Prices:  Sales prices for the Company's  metals are  established  principally by
reference to prices  quoted on the London  Metal  Exchange  (LME),  the New York
Commodity  Exchange (COMEX) or published in Platt's Metals Week for dealer oxide
mean prices for molybdenum products.

Price/Volume Data                   1998       1997      1996
                                    ----       ----      ----

Average Metal Prices
Copper (per pound - LME)           $0.75      $1.03     $1.04
Molybdenum (per pound - Metals
  Week Dealer Oxide Mean)          $3.41      $4.30     $3.78
Silver (per ounce - COMEX)         $5.51      $4.88     $5.18

Sales Volume (in thousands)
Copper (pounds)                   752,114   743,984   694,290
Molybdenum (pounds)(1)              9,677     9,398     8,813
Silver (ounces)                     3,288     3,086     3,110

(1)  The Company's  molybdenum  production is sold in concentrate  form.  Volume
     represents pounds of molybdenum contained in concentrates.


<PAGE>
                                      A-19


Financial  Instruments:  The Company uses  derivative  instruments to manage its
exposure to market risk from changes in commodity prices. 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.

Copper:  Depending on the market fundamentals and other conditions,  the Company
may purchase put options to reduce or eliminate the risk of price declines below
the option strike price on a portion of its anticipated future  production.  Put
options  purchased  by the  Company  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 and are reported as a component of
the underlying transaction.

Earnings  include  pre-tax gains from option sales and exercises of $7.2 million
in 1998,  $10.2  million in 1997 and $9.9 million in 1996. At December 31, 1998,
the Company held no copper put options.

Fuel Swaps:  The Company may enter into fuel swap agreements to limit the effect
of changes 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 sales.
As of December  31, 1998 and 1997,  the Company has entered  into the  following
fuel swap agreements:

                                                                Weighted
                                                                Average
                                                                Contract
                                               Quantity         Price
   Fuel Type               Period              (Barrels)        (per Barrel)
- ------------------ --------------------- ---------------- --------------------

1998
Residual Oil              1/99-9/99            1,095,000         $ 9.84
Diesel Fuel               1/99-9/99              432,000         $15.80

1997
Residual Oil             1/98-12/98              540,000         $13.57
Diesel Fuel              1/98-12/98              200,000         $21.17



In the event of a  hypothetical  10  percent  decrease  in the  respective  fuel
prices, the Company would incur higher production costs in 1999 of approximately
$3.2 million over the life of the contracts  than it would have incurred had the
exposure not been hedged.

In 1998,  the Company's  production  costs would have been $3.3 million lower if
this exposure had not been hedged.

Cost of Sales:  Cost of sales was $442.2  million in 1998  compared  with $474.4
million in 1997 and $400.7  million in 1996.  The  decrease of $32.2  million in
1998  includes  the lower  cost of  copper  processed  and sold  from  purchased
concentrates,  the  lower  unit  cost of  company  mined  copper  as a result of
decreases  in power  and fuel  costs,  and  benefits  from  the  Company's  cost
reduction  program.  These decreases were offset in part by a $10 million charge
for severance costs and a
<PAGE>
                                      A-20


$10.9 million charge for Ilo townsite  divestiture costs, which were part of the
Company's earnings enhancement program.

The increase of $73.7  million in 1997 was  principally  due to the higher sales
volume of copper produced from purchased concentrates and higher power costs.

Other Expenses:  Depreciation  and depletion  expense was $60.9 million in 1998,
compared with $46.7  million in 1997 and $41.6 million in 1996.  The increase in
1998 includes  depreciation of the tailings dam facility completed in late 1997,
the acid plant  expansion  completed  in 1998 and the addition of haul trucks in
1998 and 1997.  The  increase  in 1997  reflects  depreciation  of the  refinery
expansion  program  completed in late 1996,  and the addition of haul trucks and
other mobile equipment.

Exploration  expense was $5.2 million,  $7.4 million and $5.1 million,  in 1998,
1997 and 1996,  respectively.  The increase in 1997 reflects an  acceleration of
drilling programs at the Company's exploration properties.

Non-Operating  Items:  Interest  income was $15.8  million in 1998 compared with
$20.9 million in 1997 and $18.3 million in 1996. The decrease in 1998 is because
of lower  invested  balances as funds were utilized in the  Company's  expansion
program.  The increase in 1997 reflects higher invested cash balances  partially
offset by lower  interest  rates.  Interest  income is  expected  to decrease as
available  cash is  used  to fund  the  Company's  expansion  and  modernization
program.

Other  income was $9.8  million in 1998  compared  with $7.1 million in 1997 and
$4.5  million in 1996.  Other income in 1998  includes a $5.3 million  insurance
settlement related to flood damage which occurred in 1997.

Total interest expense was $25.6 million in 1998, compared with $21.9 million in
1997 and $12.5  million  in 1996.  Increased  interest  expense in 1998 and 1997
reflect the cost of  additional  borrowings  in  connection  with the  Company's
expansion program.  In 1998 and 1997, the Company  capitalized $10.6 million and
$2.3 million of interest,  respectively,  principally related to expenditures on
the expansion program.

Taxes on Income:  Taxes on income were $25.6  million,  $55.6  million and $80.2
million for 1998, 1997 and 1996, respectively,  and include $22.9 million, $45.0
million  and $74.9  million of Peruvian  income  taxes and $2.7  million,  $10.6
million and $5.3 million,  for U.S.  federal and state taxes for 1998,  1997 and
1996,  respectively.  U.S. income taxes are primarily attributable to investment
income as well as limitations  on use of foreign tax credits in determining  the
alternative minimum tax.

In 1997,  the  Government  of Peru  approved a  reinvestment  allowance  for the
Company's  program  to expand  the  Cuajone  mine.  The  reinvestment  allowance
provides the Company with tax incentives in Peru and, as a result,  certain U.S.
tax credit  carryforwards,  for which no benefit had  previously  been recorded,
were realized. The reduction in the Company's effective tax rate, as a result of
the reinvestment  allowance,  lowered tax expense by approximately $14.7 million
in 1997.  Pursuant  to the  reinvestment  allowance  the  Company  receives  tax
deductions  in Peru in  amounts  equal  to the cost of the  qualifying  property
(approximately $245 million). As qualifying property is acquired,  the financial
statement  carrying value of the qualifying  property will be reduced to reflect
the tax benefit  associated with the reinvestment  allowance  (approximately $73
million). As a result,  financial statement  depreciation expense related to the
qualifying  property  will be reduced  over its useful  life  (approximately  15
years).

The Company  obtains  income tax credits in Peru for  value-added  taxes paid in
connection  with the purchase of capital  equipment and other goods and services
employed in its operations and records these credits as a prepaid expense. Under
<PAGE>
                                      A-21


current  Peruvian  law,  the Company is entitled to use the credits  against its
Peruvian income tax liability or to receive a refund.

Minority  Interest of Labor  Shares:  The minority  interest of labor shares was
$0.5 million in 1998, compared to $4.4 million in 1997 and $5.2 million in 1996.
The  provision  for minority  interest of labor shares  represents an accrual of
2.0%,  2.4% and 3.1% for 1998,  1997 and  1996,  respectively,  of the  Branch's
after-tax  earnings.  The reductions in the  percentage of minority  interest of
labor  shares in 1998 and 1997 is a result of  purchases  of labor shares by the
Company.

Cash Flows - Operating  Activities:  Net cash provided from operating activities
was $181.4  million in 1998,  compared  with  $277.6  million in 1997 and $158.4
million in 1996. The decrease in 1998 was primarily attributable to lower copper
prices. The decrease in 1998 reflects lower earnings of $131.1 million partially
offset by higher  depreciation and deferrred tax provisions of $14.1 million and
$21.7 million, respectively.

The  increase  in  1997  reflects  higher  earnings  of  $5.1  million,   higher
depreciation  of $5.1 million and changes in operating  assets and  liabilities.
The increase in cash provided from operating  assets and liabilities  reflects a
decrease in trade accounts receivable due to the decline in copper prices in the
final months of 1997 and a reduction in the Company's  income tax payments,  due
to the reinvestment allowance in Peru.

Cash Flows - Investing  Activities:  Net cash used for investing  activities was
$70.7 million in 1998, compared with $337.6 million in 1997 and $79.4 million in
1996.  Capital  expenditures in 1998 were $258.7  million,  compared with $184.0
million in 1997 and $120.8 million in 1996.

The increase in capital  expenditures  in 1998 from 1997  reflects the expansion
project at the Cuajone mine and the Ilo smelter modernization program as well as
increased capitalization of mine stripping.  Other investment activities in 1998
include net proceeds of $182.4 million from held-to-maturity investments.

The increase in 1997 capital expenditures reflects $51.1 million for the Cuajone
mine  expansion  and $14.4  million for a new gas turbine,  which was later sold
with the Company's Ilo power plant.

The  Company's  planned  capital  expenditures  in  1999  are  estimated  to  be
approximately  $285  million,   which  includes   expenditures  related  to  the
completion of the  expansion of the Cuajone mine,  completion of the SX/EW plant
expansion,   the  Torata  River  Flood  Control  project  and  the  Ilo  smelter
modernization.

Cash  Flows -  Financing  Activities:  Financing  activities  used cash of $59.5
million in 1998 compared with  providing cash of $11.8 million in 1997 and a use
of cash of $127.3 million in 1996. Included in 1998 activity are debt repayments
of  $13.7  million,  and  purchases  of  labor  shares  and net  treasury  stock
transactions of $3.8 million and $2.7 million, respectively.

Included in 1997 are proceeds  from the sale of $150  million of Secured  Export
Notes (SENS) and the  placement of $50 million of bonds in the Peruvian  market.
Debt  repaid in 1997 was $58.7  million,  including  the  prepayment  of a $35.0
million  loan from Mitsui & Co.,  Ltd. In 1997,  purchases  of labor  shares and
treasury stock were $8.9 million and $1.7 million, respectively.

On  February  2, 1999 a dividend  of $0.03 a share,  totaling  $2.4  million was
declared,  payable March 3, 1999. It has been the Company's policy to distribute
approximately 50% of net earnings as dividends.
<PAGE>
                                      A-22


LIQUIDITY AND CAPITAL RESOURCES

Financing:  In 1997,  the Company  entered into a $600  million  seven year loan
facility  with a group of  international  financial  institutions.  The facility
consists of a $400 million term loan and a $200 million  revolving  credit line.
The  interest  rate during the first three years of the  agreement  on any loans
outstanding is LIBOR plus 1.75% per annum for term loans and LIBOR plus 2.0% for
revolving  credit  loans.  A commitment  fee of 0.5% per annum is payable on the
undrawn portion of the facility. No amounts have been drawn under this agreement
as of December 31, 1998.

Also,  in 1997,  the Company  privately  placed $150  million SENS in the United
States and international  markets.  These notes, which have been registered with
the Securities and Exchange Commission,  have an average maturity of seven years
and a final  maturity in 2007 and were priced at par with a coupon rate of 7.9%.
In addition,  in 1997,  the Company sold $50 million of bonds,  due June 2004 to
investors in Peru.  The bonds have a fixed  interest rate of 8.25%.  The Company
expects  that it will  meet its cash  requirements  for  1999  and  beyond  from
internally  generated funds, cash on hand,  borrowings under the seven-year loan
facility signed in April 1997, and from additional external financing.

The Company also has a loan outstanding with Corporacion Andina de Fomento (CAF)
of $19.6 million with interest based on LIBOR and an  outstanding  loan from the
United States Export - Import (EXIM) Bank of $14.6  million,  with interest at a
6.43% fixed rate.  Both loans are payable in  semi-annual  installments  through
2001.

At December 31, 1998, the Company had outstanding  borrowings of $234.2 million,
compared with $247.9 million at December 31, 1997.

Certain  financing  agreements  contain  covenants  which  limit the  payment of
dividends to stockholders.  Under the most restrictive covenant, the Company may
pay dividends to stockholders  equal to 50% of the net income of the Company for
any  fiscal  quarter  as  long  as  such  dividends  are  paid by June 30 of the
following  year.  Net  assets of the  Company  unavailable  for the  payment  of
dividends  totaled $1,106  million at December 31, 1998. In accordance  with the
most  restrictive   covenant  of  the  Company's  loan  agreements,   additional
indebtedness of $874.4 million would have been permitted at December 31, 1998.

The EXIM Bank credit agreement is  collateralized by pledges of receivables from
7,700 tons of copper per year.  The CAF loan is  collateralized  by liens on the
SX/EW facility.  The SENS and the seven year loan facility  require that most of
the  collections of export copper sales be deposited into a trust account in the
United States.  Twenty percent of these  collections  are used as collateral for
the outstanding  SENS with the balance of the collections  remitted  directly to
the  Company.  The excess  funds in the  collateral  account are remitted to the
Company, if all financial requirements are met. As part of these agreements, the
Company must maintain  three-month and six-month  collection  ratios, as defined
(aggregate collections as a specified multiple of debt service). Both facilities
require escrow  deposits of three months debt service.  In addition,  certain of
the agreements require the Company to maintain a minimum stockholders' equity of
$750  million,  specified  ratios of debt to equity,  current  assets to current
liabilities and an interest  coverage test.  Reduction of ASARCO  Incorporated's
(Asarco) voting interest in the Company to less than a majority would constitute
an event of default  under one of the  financing  agreements.  The Company is in
compliance  with the various loan  covenants  at December 31, 1998.  Included in
Other  assets are $11.2  million  held in escrow  accounts  as  required  by the
Company's loan  agreements.  The funds will be released from escrow as scheduled
loan repayments are made.

At December 31, 1998, the Company's debt as a percentage of total capitalization
(the total of debt, minority interest of labor shares and stockholders'  equity)
was 17.2% as compared with 18.2% at December 31, 1997.


<PAGE>
                                      A-23


At December 31, 1998, the Company's cash and marketable  securities  amounted to
$198.1 million compared with $331.1 million at December 31, 1997.

DIVIDENDS AND CAPITAL STOCK

The Company paid dividends to stockholders of $40.7 million, or $0.51 per share,
in 1998,  $101.1 million,  or $1.26 per share,  in 1997 and $117.9  million,  or
$1.47 per share in 1996. Distributions to the labor share minority interest were
$0.9  million,   $2.5  million  and  $4.1  million  in  1998,   1997  and  1996,
respectively.



At the end of 1998 and 1997, the authorized and outstanding capital stock of the
Company  consisted of 65,900,833 shares of Class A common stock, par value $0.01
per share; and 34,099,167 authorized shares of common stock, par value $0.01 per
share, of which  13,949,812 were outstanding at December 31, 1998 and 14,157,107
shares were outstanding at December 31, 1997.


ENVIRONMENTAL MATTERS

The Company's exploration, mining, milling, smelting and refining activities are
subject to  Peruvian  laws and  regulations,  including  environmental  laws and
regulations,  which  change  from  time to  time.  The  Company's  environmental
compliance and management plan,  PAMA,  approved in January 1997, sets forth the
investment  to  be  made  by  the  Company  to  comply  with  current   Peruvian
environmental  regulations applicable to its operations.  To implement the PAMA,
the Company is required to make a minimum annual  investment of 1% of net annual
sales  until  compliance  is met.  The PAMA will  require  the  Company  to make
significant  additional  capital  expenditures  to achieve  compliance  with the
maximum  permissible  levels for its  emissions  and waste  discharges  within a
period of five  years,  except  for  environmental  controls  applicable  to its
smelter  operation  which  must be put in  place  within  ten  years.  The  PAMA
contemplates a number of  environmental  projects,  the largest and most capital
intensive  of  which  is the  planned  modernization  of the  Ilo  smelter.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations - Expansion and  Modernization  Project." Under current  Peruvian law
and   regulations,   compliance   with  the  PAMA  will  satisfy   environmental
requirements  pertaining  to the  Company's  operations  during  the  applicable
five-or-ten year implementation period. The Company remains, however, subject to
other  environmental  requirements  applicable to its operations.  Environmental
capital  expenditures  were $25.3  million,  $47.8  million and $24.6 million in
1998, 1997 and 1996,  respectively.  In addition, the Company estimates spending
$75.9 million for environmental control capital expenditures in 1999.


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. The Company has identified two
computerized  information systems that are not Y2K compliant.  These systems are
being replaced and are expected to be operational by the second quarter of 1999.
In addition, the Company has identified one embedded computer system that is not
Y2K  compliant.  This system is being replaced and is expected to be operational
in the third quarter of 1999. As of December 31, 1998,  approximately 60% of the
Company's  computerized  information  systems  have  been  tested  and  are  Y2K
compliant
<PAGE>
                                      A-24


with the  remainder  expected  to be tested and be Y2K  compliant  by the second
quarter of 1999. The Company continues to test these systems where  appropriate.
In addition,  the Company continues to test its computer systems embedded in the
production  processes and expects to be completed and Y2K compliant by the third
quarter of 1999.

As of December 31,  1998,  the Company had spent  approximately  $0.9 million in
addition to its normal internal information  technology costs in connection with
its Y2K program.  The Company expects to incur  additional costs of $0.3 million
to complete phases two and three of the program.

Under the third phase of the program the Company has sent  detailed  information
requests  to  its  principal  customers,  suppliers  and  service  providers  to
determine  the status of their Y2K  compliance.  As of December  31,  1998,  the
Company received  confirmations  from approximately 50% indicating that they are
or will be Y2K  compliant.  The Company  expects to have further  communications
with those who have not responded or have indicated further work was required to
achieve  Y2K  compliance.  The third  phase of the  program  is  expected  to be
completed in the first quarter of 1999.

Among other  things,  the Company's  operations  depend on the  availability  of
utility  services,   principally   electricity,   and  reliable  performance  by
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.  In response
to a request from the Company,  a detailed plan to ensure Y2K  compliance by the
Company's  principal  electrical  power  supplier was  received.  The Company is
monitoring  the progress of this plan.  The Company will  complete a contingency
plan for each of its principal operations during the second quarter of 1999. 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.


IMPACT OF NEW ACCOUNTING STANDARDS

In  March  1998,  the  American  Institute  of  Certified  Public   Accountants'
Accounting  Standards  Executive Committee issued statement of Position No. 98-1
"Accounting for the Cost of Computer Software Developed or Obtained for Internal
Use." This  statement  which is  effective  for  fiscal  years  beginning  after
December 15, 1998,  provides  guidance on  accounting  for the costs of computer
software  developed or obtained for internal use. This statement will not have a
material impact on the Company's financial statements.

In June 1998,  the  Financial  Accounting  Standards  Board  issued SFAS No. 133
"Accounting for Derivative  Instruments and Hedging Activities".  This statement
which is effective for fiscal years beginning  after June 15, 1999,  establishes
accounting  and  reporting  standards  for  derivative  instruments  and hedging
activities. The Company is currently assessing the impact of this statement.

<PAGE>
                                      A-25


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.

<PAGE>
                                      A-26


Item 8.  Financial Statements and Supplementary Data.

                        Southern Peru Copper Corporation
                                and Subsidiaries
                       CONSOLIDATED STATEMENT OF EARNINGS




For the years ended December 31,        1998             1997           1996
                                        ----             ----           ----
(in thousands, except for per share amounts)

Net sales:
 Stockholders and affiliates         $ 18,685         $ 59,897       $ 71,740
 Others                               609,231          754,259        681,292
                                 ---------------- -------------- --------------
Total net sales                       627,916          814,156        753,032

Operating costs and expenses:
 Cost of sales                        442,206          474,385        400,733
 Administrative and other              49,612           48,367         49,979
 Depreciation and depletion            60,859           46,736         41,623
 Exploration                            5,185            7,390          5,063
                                 ---------------- -------------- --------------
  Total operating costs and expenses  557,862          576,878        497,398
                                 ---------------- -------------- --------------

Operating income                       70,054          237,278        255,634

Interest income                        15,784           20,934         18,264
Interest expense                      (15,009)         (19,573)       (12,467)
Other income                            9,763            7,066          4,489
                                 ---------------- -------------- --------------

Earnings before taxes on income and
 minority interest of labor shares     80,592          245,705        265,920

Taxes on income                        25,567           55,610         80,200

Minority interest of labor shares 
 in income of Peruvian Branch             461            4,437          5,208
                                 ---------------- -------------- --------------

Net earnings                         $ 54,564         $185,658       $180,512
                                 ================ ============== ==============
Per common share amounts:
 Net earnings - basic and diluted       $0.68            $2.32          $2.25
 Dividends paid                         $0.51            $1.26          $1.47
 Weighted average number 
  of shares outstanding-basic          79,893           80,188         80,195
 Weighted average number 
  of shares outstanding-diluted        79,893           80,197         80,252

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


<PAGE>
                                      A-27


                        Southern Peru Copper Corporation
                                and Subsidiaries
                           CONSOLIDATED BALANCE SHEET

At December 31,                                        1998            1997
                                                       ----            ----
(Dollars in thousands)
ASSETS                                               
  Current assets:
    Cash and cash equivalents                      $  175,948      $  126,491
    Marketable securities                              22,152         204,590
    Accounts receivable:
      Trade:
        Stockholders and affiliates                     1,446           2,941
        Other trade                                    43,976          44,740
      Other                                            19,139          26,083
    Inventories                                        88,951         108,683
    Other current assets                               58,450          66,067
                                                --------------------------------
         Total current assets                         410,062         579,595
  Net property                                      1,088,557         947,457
  Other assets                                         27,218          34,278
                                                --------------------------------
         Total assets                              $1,525,837      $1,561,330
                                                ================================

LIABILITIES
  Current liabilities:
    Current portion of long-term debt              $   13,683      $   13,683
    Accounts payable:
      Trade                                            28,477          22,296
      Other                                            20,020          25,645
    Other current liabilities                          34,836          41,495
                                                    ----------------------------
         Total current liabilities                     97,016         103,119
                                                    ----------------------------

  Long-term debt                                      220,525         234,208
  Deferred credits                                     15,722          58,574
  Deferred income taxes                                56,700          44,323
  Other liabilities                                    10,951           4,083
                                                    ----------------------------
         Total non-current liabilities                303,898         341,188
                                                    ----------------------------

  Contingencies

Minority interest of labor shares in the
  Peruvian Branch                                      16,331          19,385
                                                    ----------------------------

STOCKHOLDERS' EQUITY
  Common stock, par value $0.01; shares authorized:
    1998 and 1997 - 34,099,167;
    shares issued: 1998 and 1997 - 14,330,093             143             143
  Class A Common stock, par value $0.01;
    shares issued and authorized: 1998 and 1997 -
    65,900,833                                            659             659
  Additional paid-in capital                          265,745         265,745
  Retained earnings                                   847,229         833,560
  Treasury stock, at cost, common shares, 
    1998-380,281, 1997 - 172,986                       (5,184)         (2,469)
                                                   -----------------------------
         Total Stockholders' Equity                 1,108,592       1,097,638
                                                   -----------------------------
         Total Liabilities, Minority Interest
           and Stockholders' Equity                $1,525,837      $1,561,330
                                                   =============================

The accompanying notes are an integral part of these financial statements.
<PAGE>
                                      A-28



                        Southern Peru Copper Corporation
                                and Subsidiaries
                      CONSOLIDATED STATEMENT OF CASH FLOWS

For the years ended December 31,                    1998       1997        1996
                                                    ----       ----        ----
(Dollars in thousands)

OPERATING ACTIVITIES                                                      
Net earnings                                    $ 54,564    $185,658   $180,512

Adjustments to reconcile net earnings
 to net cash provided from operating
 activities:
  Depreciation and depletion                      60,859      46,736     41,623
  Provision (benefit) for deferred income taxes   14,374      (7,289)    12,043
  Minority interest of labor shares                  461       4,437      5,208
  Net loss on sale or disposal 
    of investments and property                    9,773         268        110
  Cash provided from (used for) operating assets
   and liabilities:
    Accounts receivable                            8,292      15,718     10,498
    Inventories                                   19,732       9,998    (15,046)
    Accounts payable and accrued liabilities       9,707     (25,094)   (52,023)
    Other operating assets and liabilities           635      48,752    (17,811)
    Foreign currency transaction (gain) loss       3,025      (1,616)    (6,707)
                                                -------------------------------
 Net cash provided from operating activities     181,422     277,568    158,407
                                                -------------------------------

INVESTING ACTIVITIES
Capital expenditures                            (258,696)   (183,956)  (120,803)
Purchase of held-to-maturity investments         (40,900)   (204,590)         -
Proceeds from held-to-maturity investments       223,338       1,000     41,453
Sales of investments and property                  5,543      49,914          -
                                               --------------------------------
Net cash used for investing activities           (70,715)   (337,632)   (79,350)
                                               --------------------------------

FINANCING ACTIVITIES
Debt incurred                                          -     200,000     47,000
Debt repaid                                      (13,683)    (58,684)   (34,289)
Escrow deposits on long-term loans                 2,311     (15,364)   (10,065)
Dividends paid to common stockholders            (40,735)   (101,050)  (117,913)
Distributions to minority interests                 (892)     (2,504)    (4,091)
Net treasury stock transactions                   (2,715)     (1,681)      (788)
Purchases of labor shares                         (3,791)     (8,885)    (7,130)
                                                 ------------------------------
Net cash provided from (used for)
 financing activities                            (59,505)     11,832   (127,276)
                                                 ------------------------------

Effect of exchange rate changes on cash           (1,745)      1,518      1,778
                                                 ------------------------------

Increase (decrease) in cash and cash equivalents  49,457     (46,714)   (46,441)
Cash and cash equivalents, at beginning of year  126,491     173,205    219,646
                                                 ------------------------------

Cash and cash equivalents, at end of year       $175,948    $126,491   $173,205
                                                -------------------------------

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

<PAGE>
                                      A-29


                        Southern Peru Copper Corporation
                                and Subsidiaries
            CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY
<TABLE>
<CAPTION>

For the years ended December 31,                               1998            1997             1996
                                                               ----            ----             ----
(Dollars in thousands) 
CAPITAL STOCK:
<S>                                                            <C>             <C>              <C>       
COMMON STOCK:
Balance at beginning of year                              $      143      $      137       $      115
Conversion from Class A to Common Stock, 
 1997 - 650,000 shares; 1996 - 2,200,000 shares                    -               6               22
                                                       --------------------------------------------------
Balance at end of year                                           143             143              137
                                                       --------------------------------------------------

CLASS A COMMON STOCK:
Balance at beginning of year                                     659             666              688
Conversion to Common Stock, 1997 -650,000 shares;
 1996 -2,200,000 shares                                            -              (7)             (22)
                                                       --------------------------------------------------
Balance at end of year                                           659             659              666
                                                       --------------------------------------------------

ADDITIONAL PAID-IN CAPITAL:
Balance at beginning of year                                 265,745         265,745          265,738
Additional paid-in capital on treasury 
 shares issued                                                     -               -                7
                                                       --------------------------------------------------
Balance at end of year                                       265,745         265,745          265,745
                                                       --------------------------------------------------

TREASURY STOCK:
Balance at beginning of year                                  (2,469)           (788)               -
Purchased                                                     (3,001)         (1,997)          (1,155)
Used for corporate purposes                                      286             316              367
                                                       --------------------------------------------------
Balance at end of year                                        (5,184)         (2,469)            (788)
                                                       --------------------------------------------------

RETAINED EARNINGS:
Balance at beginning of year                                 833,560         749,267          686,946
Net earnings                                                  54,564         185,658          180,512
Dividends paid                                               (40,735)       (101,050)        (117,913)
Stock awards                                                    (160)           (315)            (278)
                                                      ---------------------------------------------------
Balance at end of year                                       847,229         833,560          749,267
                                                      ---------------------------------------------------
TOTAL STOCKHOLDERS' EQUITY                                $1,108,592      $1,097,638       $1,015,027
                                                      ---------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these financial statements.
<PAGE>
                                      A-30



                        SOUTHERN PERU COPPER CORPORATION
                                and SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.  Summary of Significant Accounting Policies

Principles of consolidation:
The consolidated  financial  statements of Southern Peru Copper  Corporation and
Subsidiaries  (the Company) include the accounts of significant  subsidiaries in
which the Company  has voting  control,  and are  prepared  in  accordance  with
generally  accepted  accounting  principles  in the United  States (U.S.  GAAP).
Certain prior year amounts have been reclassified to conform to the current year
presentation.

Use of estimates:
The  preparation of financial  statements in conformity  with U.S. GAAP requires
management to make estimates and assumptions that affect the reported amounts of
assets and  liabilities  and disclosure of contingent  assets and liabilities at
the date of the financial  statements  and the reported  amounts of revenues and
expenses  during the reporting  period.  Actual  results could differ from those
estimates.

Revenue recognition:
Substantially  all of the  Company's  copper  is sold  under  annual  contracts.
Revenue is  recognized  primarily  in the month  product is shipped to customers
based  on  prices  as  provided  in  sales  contracts.  When  the  price  is not
determinable at the time of shipment to customers,  revenue is recognized  based
on prices  prevailing  at the time of  shipment  with  final  pricing  generally
occurring within three months of shipment.  Revenues with respect to these sales
are adjusted in the period of settlement to reflect final pricing and in periods
prior to  settlement  to reflect  any decline in market  prices  which may occur
between shipment and settlement. The Company sells copper in blister and refined
form at industry standard commercial terms. Net sales include the invoiced value
of copper,  silver,  molybdenum,  acid, and gains from the sale or settlement of
copper put options.

Cash equivalents and marketable securities:
Cash equivalents  include all highly liquid investments with a maturity of three
months or less, when purchased.  Marketable securities include short-term liquid
investments with a maturity of more than three months,  when purchased,  and are
carried at cost, which approximates market.

Inventories:
Metal  inventories  are  carried at the lower of average  cost or market.  Costs
incurred  in  the   production  of  metal   inventories   exclude   general  and
administrative  costs.  Supplies  inventories are carried at average cost less a
reserve for obsolescence.

Property:
Assets are valued at the lower of cost or net  realizable  value.  In accordance
with SFAS No. 121,  "Accounting for the Impairment of Long-Lived  Assets and for
Long-Lived  Assets to be Disposed Of", the Company  reviews  long-lived  assets,
certain  identifiable  intangibles  and  goodwill  related  to those  assets for
impairment  whenever  events  or  changes  in  circumstances  indicate  that the
carrying  amount of the assets may not be  recoverable.  Any impairment  loss on
such assets, as well as long-lived assets and certain  identifiable  intangibles
to be disposed of, is measured as the amount by which the carrying  value of the
assets  exceeds  the  fair  value  of  the  assets  (less  disposal   costs,  if
applicable).

The Company evaluates the carrying value of assets based on undiscounted  future
cash flows  considering  expected metal prices based on historical  metal prices
and price trends.

<PAGE>
                                      A-31


Betterments, renewals, costs of bringing new mineral properties into production,
and the cost of major development  programs at existing mines are capitalized as
mineral land. Maintenance,  repairs, normal development costs at existing mines,
and gains or losses on assets  retired  or sold are  reflected  in  earnings  as
incurred.  Buildings and equipment are depreciated on the  straight-line  method
over  estimated  lives from 5 to 40 years,  or the estimated life of the mine if
shorter. Depletion of mineral land is computed by the units-of-production method
using proven and probable ore reserves.

Exploration:
Tangible and intangible costs incurred in the search for mineral  properties are
charged against earnings when incurred.

Hedging Activities:
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.

Swap Agreements:
Fuel swap  agreements  limit the  effect of  changes  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.

Stock Based Compensation: 
The Company  applies the  disclosure  only  provisions of Statement of Financial
Accounting Standards No. 123, "Accounting for Stock-Based Compensation."

Impact of New Accounting Standards:
In  March  1998,  the  American  Institute  of  Certified  Public   Accountants'
Accounting  Standards  Executive Committee issued Statement of Position No. 98-1
"Accounting for the Cost of Computer Software Developed or Obtained for Internal
Use." This  statement  which is  effective  for  fiscal  years  beginning  after
December 15, 1998,  provides  guidance on  accounting  for the costs of computer
software  developed or obtained for internal use. This statement will not have a
material impact on the Company's financial statements.

In June 1998,  the  Financial  Accounting  Standards  Board  issued SFAS No. 133
"Accounting for Derivative  Instruments and Hedging Activities".  This statement
which is effective for fiscal years beginning  after June 15, 1999,  establishes
accounting  and  reporting  standards  for  derivative  instruments  and hedging
activities. The Company is currently assessing the impact of this statement.

2.  Merger of Subsidiary Company

Southern  Peru  Copper  Corporation  was  reorganized  into  a  holding  company
structure  effective  January  2, 1996,  upon  completion  of a public  offer to
exchange newly-issued Common Stock for outstanding labor shares of the Company's
Peruvian  Branch.  Effective  December 31, 1998, the Company's  predecessor  and
wholly-owned  operating  subsidiary,  Southern Peru Limited, was merged into the
Company.
<PAGE>
                                      A-32


3. Foreign Exchange

The functional  currency of the Company is the U.S. dollar. The Company's sales,
cash,  trade  receivables,  fixed asset  additions,  trade payables and debt are
primarily dollar-denominated. A portion of the operating costs of the Company is
denominated in Peruvian soles.

Gains and (losses) resulting from foreign currency  transactions are included in
"Cost of sales" and amounted to ($3.0) million, $2.0 million and $6.7 million in
1998, 1997 and 1996, respectively.

4. Taxes on Income

The components of the provision for taxes on income are as follows:

For the years ended December 31,         1998            1997            1996
                                         ----            ----            ----
(in millions)
U.S. Federal and state
  Current                               $ 2.2          $ 10.2           $ 5.0
  Deferred                                0.5             0.4             0.3
                                    ------------ --------------- ---------------
U.S. Federal and state                    2.7            10.6             5.3
                                    ------------ --------------- ---------------
Foreign:
  Current                                 8.5            52.3            62.9
  Deferred                               14.4            (7.3)           12.0
                                    ------------ --------------- ---------------
Foreign                                  22.9            45.0            74.9
                                    ------------ --------------- ---------------

  Total provision for income taxes      $25.6          $ 55.6           $80.2
                                    ============ =============== ===============

Total taxes paid were $10.4  million,  $30.1 million and $123.4 million in 1998,
1997 and 1996, respectively.

Reconciliation of the statutory income tax rate to the effective income tax rate
is as follows:

For the years ended December 31,             1998          1997        1996
                                             ----          ----        ----
Peruvian income tax at maximum
  Statutory rates                            30.0%         30.0%       30.0%
U.S. income tax at statutory rate            35.0          35.0        35.0
Utilization of foreign tax credits          (20.8)        (16.9)      (25.3)
Peruvian reinvestment allowance               -            (9.0)        -
Alternative minimum tax (AMT) credit          -            (3.4)        -
Percentage depletion                        (10.5)         (9.6)       (9.0)
Income not taxable in Peru                   (1.8)         (2.6)       (1.8)
Other                                        (0.2)         (0.9)        1.3
                                          ----------     ---------   ---------
                                      
  Effective income tax rate                  31.7%         22.6%       30.2%
                                          ==========     =========   =========
<PAGE>
                                      A-33


Temporary  differences and carryforwards which give rise to deferred tax assets,
liabilities and related valuation allowances are as follows:

Deferred tax assets (liabilities)             
At December 31,                                      1998        1997
                                                     ----        ----
(in millions)
Current:
  Accounts receivable                              $  1.7       $  1.6
  Inventories                                         0.1          0.1
                                              -------------------------------
    Net deferred tax assets                           1.8          1.7
                                              -------------------------------
Non-current:
  Foreign tax credit carryforwards                   23.4         26.1
  AMT credit carryforwards                           12.2         11.5
  Property, plant and equipment                     (58.5)       (43.5)
  Other                                               1.8         (0.8)
  Valuation allowance for deferred tax assets       (35.6)       (37.6)
                                              -------------------------------
    Net deferred tax liabilities                    (56.7)       (44.3)
                                              -------------------------------

Total net deferred tax liabilities                 $(54.9)      $(42.6)
                                              ===============================

At December 31, 1998,  the foreign tax credit  carryforward  available to reduce
possible future U.S. income tax amounted to  approximately  $23.4 million all of
which expires in 2000.

In 1997,  the  Government  of Peru  approved a  reinvestment  allowance  for the
Company's  program  to expand  the  Cuajone  mine.  The  reinvestment  allowance
provides  SPCC with tax  incentives in Peru,  and as a result,  certain U.S. tax
credit  carryforwards,  for which no benefit had previously been recorded,  were
realized.  The  reduction  in  the  effective  tax  rate,  as a  result  of  the
reinvestment  allowance for the twelve months ended  December 31, 1997,  lowered
tax expense approximately $14.7 million.  Pursuant to the reinvestment allowance
SPCC has received  tax  deductions  in Peru in amounts  equal to the cost of the
qualifying  property  (approximately  $245 million).  As qualifying  property is
acquired,  the financial  statement carrying value of the qualifying property is
reduced to reflect the tax benefit  associated with the  reinvestment  allowance
(approximately  $73  million).  As a result,  financial  statement  depreciation
expense related to the qualifying  property will be reduced over its useful life
(approximately 15 years).

The Company  has not  recorded  the benefit of foreign tax credit  carryforwards
because of both the expiration  dates and the rules governing the order in which
such credits are  utilized.  The Company also has not recorded a benefit for the
AMT credits,  which are not available to reduce AMT.  Because of  limitations on
both  percentage  depletion  and foreign tax credits  under the AMT, the Company
expects an AMT liability for the foreseeable future. Thus, while such credits do
not  expire,  it is unlikely  they will be  utilized.  Accordingly,  a valuation
allowance  has been  established  for the full  amount of the foreign tax credit
carryforward and the AMT credit carryforward.

The Company  obtains  income tax credits in Peru for  value-added  taxes paid in
connection  with the purchase of capital  equipment and other goods and services
employed in its operations and records these credits as a prepaid expense. Under
current  Peruvian  law,  the Company is entitled to use the credits  against its
Peruvian  income tax  liability or to receive a refund.  The  carrying  value of
these Peruvian tax credits approximates their market value.

<PAGE>
                                      A-34


5.  Net Sales

Net sales by country were as follows:
For the years ended December 31,        1998         1997         1996
                                        ----         ----         ----
(in millions)
United States                          $127.5       $132.1       $ 77.4
Italy                                    86.9        110.0        109.4
United Kingdom                           96.1         98.4        110.3
The Netherlands                          57.7         83.8         94.3
Japan                                    44.7         72.5         82.0
Foreign - Other                         215.0        317.4        279.6
                                    ------------- ----------- ------------
  Net sales                            $627.9       $814.2       $753.0
                                    ============= =========== ============

At December 31, 1998,  the Company had recorded  sales of 27.5 million pounds of
copper at a provisional price of 66 cents per pound.  These sales are subject to
final  pricing  based on the average  monthly  LME copper  price in the month of
final settlement which will occur in the first quarter of 1999.

Under the terms of a sales contract with Union Miniere,  the Company is required
to supply Union Miniere, through its agent, S.A. Sogem N.V., with 46,300 tons of
blister  copper  annually  for a ten year period from  January 1, 1994,  through
December 31, 2003. The price of the copper, contained in blister, supplied under
the contract is determined  based on the LME monthly  average  settlement  price
less a refining  allowance,  which is agreed upon annually based on world market
terms.

Under the terms of a sales contract with Mitsui & Co. Ltd. (Mitsui), the Company
is required to supply Mitsui, at its option up to 26,455 tons of copper cathodes
annually for a seven year period from 1994 through 2000. Pricing of the cathodes
is based upon the LME monthly average  settlement  price plus a producer premium
which is agreed upon annually based on world market terms.

6.  Financial Instruments

Hedging  Activities:  The  Company  uses  derivative  instruments  to manage its
exposure to market risk from changes in commodity prices. 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.

Copper:  Depending on the market fundamentals and other conditions,  the Company
may purchase put options to reduce or eliminate the risk of price declines below
the option strike price on a portion of its anticipated future  production.  Put
options  purchased  by the  Company  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 and are reported as a component of
the underlying transaction.

Earnings  include  pre-tax gains from option sales and exercises of $7.2 million
in 1998,  $10.2  million in 1997 and $9.9 million in 1996. At December 31, 1998,
the Company held no copper put options.
<PAGE>
                                      A-35


Fuel Swaps:  The Company may enter into fuel swap agreements to limit the effect
of changes 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 sales.
As of December  31, 1998 and 1997,  the Company has entered  into the  following
fuel swap agreements:

                                                          Weighted
                                                          Average
                                                          Contract
                                         Quantity         Price
 Fuel Type           Period              (Barrels)        (per Barrel)
- ----------------- --------------- --------------------- ---------------- 

1998
Residual Oil        1/99-9/99           1,095,000              $ 9.84
Diesel Fuel         1/99-9/99             432,000              $15.80

1997
Residual Oil       1/98-12/98             540,000              $13.57
Diesel Fuel        1/98-12/98             200,000              $21.17



In the event of a  hypothetical  10  percent  decrease  in the  respective  fuel
prices, the Company would incur higher production costs in 1999 of approximately
$3.2 million over the life of the contracts  than it would have incurred had the
exposure not been hedged.

In 1998,  the  Company's  production  cost would have been $3.3 million lower if
this exposure had not been hedged.

The estimated fair value of the Company's financial instruments is:

At December 31,                      1998                      1997
(in millions)               Carrying      Fair        Carrying       Fair
                             Value        Value        Value         Value
                             -----        -----        -----         -----
Assets:
Cash and cash equivalents    $175.9       $175.9       $126.5       $126.5
Marketable securities -
    held to maturity           22.2         22.2        204.6        204.6
Put options                       -            -          0.6          7.2
Fuel swap agreements              -         (1.6)           -         (0.5)
Liabilities:
Long-term debt               $234.2       $225.0       $247.9       $248.3

The following  methods and  assumptions  were used to estimate the fair value of
each class of financial instruments for which it is practicable to estimate that
value:

Cash and cash equivalents - The carrying amount  approximates fair value because
of the short maturity of these instruments.

Marketable  securities  - The  carrying  amount and fair value are  reported  at
amortized cost, which approximates market, since these securities are to be held
to maturity.

Put options - Fair value is an estimate  based on  relevant  market  information
such as: volatility of similar options, futures prices and the strike price.

Fuel swap agreements - Fair value is based on quoted market prices.
<PAGE>
                                      A-36


Long-term debt - Fair value is based on the quoted market prices for the same or
similar issues.

7. Workers' Participation

Provisions for workers'  participation  are calculated at 8% of pre-tax earnings
and are  included  in "Cost of sales" on the  earnings  statement.  The  current
portion  of this  participation  which is  accrued  during  the year is based on
Branch taxable income and is distributed to workers  following  determination of
final results for the year.


8. Minority Interest of  Labor Shares

The  minority  interest  of the  labor  shares is based on the  earnings  of the
Company's Peruvian Branch.

The Company acquired 1.0 million,  2.0 million and 1.8 million labor shares at a
cost of $3.8 million,  $8.9 million and $7.1 million in the years 1998, 1997 and
1996,  respectively.  The carrying value of the minority interest was reduced by
$2.5  million,   $5.1  million  and  $4.4  million  in  1998,   1997  and  1996,
respectively, and the excess paid over the carrying value was assigned primarily
to proven and  probable  sulfide and  leachable  ore  reserves  and  mineralized
material  and is being  amortized  based  on  production.  As a result  of these
acquisitions,  the  remaining  labor  shareholders  hold a 1.9%  interest in the
Branch at December 31, 1998, and are entitled to a pro rata participation in the
cash  distributions  made by the  Branch.  The labor  shares are  recorded  as a
minority interest in the Company's financial statements.


9. Inventories

At December 31,                          1998              1997
                                         ----              ----
(in millions)
Metals:
  Finished goods                          $ 1.5            $  0.6
  Work-in-process                          37.9              45.0
Supplies, net of reserves                  49.5              63.1
                               ----------------- -----------------
  Total inventories                       $88.9            $108.7
                               ----------------- -----------------


10. Property

At December 31,                          1998              1997
                                         ----              ----
(in millions)
Buildings and equipment                $1,623.4          $1,493.6
Mineral land                              376.7             330.7
Land, other than mineral                    1.8               1.3
                               ----------------- -----------------
  Total property                        2,001.9           1,825.6
Accumulated depreciation                  913.3             878.1
                               ----------------- -----------------
  Net property                         $1,088.6          $  947.5
                               ----------------- -----------------

In 1998,  the  Company  recorded  a charge  of $9.8  million  to  write-off  the
remaining  book value of the Ilo townsite  property,  transferred  to its worker
occupants and the city of Ilo, Peru.

<PAGE>
                                      A-37


11.  Other Current Liabilities

At December 31,                                     1998              1997
                                                    ----              ----
(in millions)
Accrued workers' participation                      $ 1.2             $13.8
Accrued severance pay, current portion                1.8               1.7
Salaries and wages                                    7.8               8.0
Taxes on income                                      22.0              18.0
Other                                                 2.0                 -
                                             ----------------- -----------------
  Total other current liabilities                   $34.8             $41.5
                                             ----------------- -----------------


12.  Debt and Available Credit Facilities

Long-term debt at December 31,                      1998             1997
                                                    ----             ----
(in millions)
6.43% EXIM Bank credit agreement                   $ 14.6            $ 20.4
CAF credit agreement - 8.9%                          19.6              27.5
7.9% Secured Export Notes (SENS) due 2007           150.0             150.0
8.25% Corporate bonds due 2004                       50.0              50.0
                                               --------------- -----------------
  Total debt                                        234.2             247.9
Less, current portion                                13.7              13.7
                                               --------------- -----------------
  Total long-term debt                             $220.5            $234.2
                                               --------------- -----------------

Interest paid by the Company (excluding amounts capitalized of $10.6 million and
$2.3 million in 1998 and 1997,  respectively)  was $12.5 million,  $19.0 million
and $10.8 million in 1998, 1997 and 1996, respectively.

Fees paid for loan  agreements  of $13.9  million in 1997 are  included in other
assets and amortized over the respective terms of the loans.

Aggregate maturities of the borrowings  outstanding at December 31, 1998, are as
follows (in millions):


                 1999                             $ 13.7
                 2000                               23.3
                 2001                               24.3
                 2002                               18.9
                 2003                               20.5
              Thereafter                           133.5
                                         --------------------
                 Total                            $234.2
                                         --------------------

In 1997, the Company  entered into a $600 million  seven-year  credit  agreement
with a group of international financial institutions.  The agreement consists of
a $400 million term loan facility and a $200 million  revolving credit facility.
The  interest  rate during the first three years of the  agreement  on any loans
outstanding is LIBOR plus 1.75% per annum for term loans and LIBOR plus 2.0% for
revolving  credit  loans.  A commitment  fee of 0.5% per annum is payable on the
undrawn portion of the facility. No amounts have been drawn under this agreement
as of December 31, 1998.

Also in 1997,  the Company  privately  placed $150 million of SENS in the United
States  and  international  markets.  These  notes were  issued  with an average
maturity of seven years and a final maturity in 2007 and were priced at par with
a coupon rate of 7.9%. In addition, in June 1997 the Company sold $50 million of
8.25% bonds due June 2004 to investors in Peru.

<PAGE>
                                      A-38


Some financing agreements contain covenants which limit the payment of dividends
to  stockholders.  Under the most  restrictive  covenant,  the  Company  may pay
dividends to stockholders  equal to 50% of its net income for any fiscal quarter
as long as such  dividends  are  paid  by June 30 of the  following  year.  As a
result,  net assets of the  Company  unavailable  for the  payment of  dividends
totaled  $1,106  million at  December  31,  1998.  In  accordance  with the most
restrictive covenant of the Company's loan agreements,  additional  indebtedness
of $874.4 million would have been permitted at December 31, 1998.

The EXIM Bank credit agreement is  collateralized by pledges of receivables from
sales of 7,700 tons of copper per year. The CAF loan is  collateralized by liens
on the SX/EW facility.  The SENS and the seven-year  loan facility  require that
most of the collections of export copper sales be deposited into a trust account
in the United States. Twenty percent of these collections are used as collateral
for the outstanding SENS with the balance of the collections  remitted  directly
to the Company.  The excess funds in the collateral  account are remitted to the
Company, if all financial requirements are met. As part of these agreements, the
Company must maintain three month and six month  collection  ratios,  as defined
(aggregate collections as a specified multiple of debt service). Both facilities
require escrow  deposits of three months debt service.  In addition,  certain of
the agreements require the Company to maintain a minimum stockholders' equity of
$750  million,  specified  ratios of debt to equity,  current  assets to current
liabilities and an interest  coverage test.  Reduction of ASARCO  Incorporated's
(Asarco) voting interest in the Company to less than a majority would constitute
an event of default  under one of the  financing  agreements.  The Company is in
compliance  with the various loan  covenants  at December 31, 1998.  Included in
Other  assets are $11.2  million  held in escrow  accounts  as  required  by the
Company's loan  agreements.  The funds will be released from escrow as scheduled
loan repayments are made.


13.  Benefit Plans

The  Company  has a  noncontributory,  defined  benefit  pension  plan  covering
salaried employees in the United States and certain employees in Peru.  Benefits
are based on salary and years of service.  The  Company's  funding  policy is to
contribute  amounts  to  the  plans  sufficient  to  meet  the  minimum  funding
requirements set forth in the Employee  Retirement  Income Security Act of 1974,
plus such  additional  amounts as the Company may  determine to be  appropriate.
Plan assets are invested in commingled stock and bond funds.  Effective  January
1, 1997 one of the Company's pension plans,  which provides benefits to non-U.S.
expatriate employees, was amended to cease future benefit accruals. Accordingly,
those participants became eligible for future benefits under the Company's other
pension plan.
<PAGE>
                                      A-39


The components of net periodic benefit costs are as follows:

 For the years ended December 31,              1998        1997       1996
                                               ----        ----       ----
 (in millions)
 Service cost                                $  0.6      $  0.4      $  0.5
 Interest cost                                  0.7         0.5         0.5
 Expected return on plan assets                (0.7)       (0.5)       (0.4)
 Amortization of prior service cost             0.1         -           -
 Amortization of transitional obligation        0.2         0.2         0.2
                                           ------------------------------------
 Net periodic benefit cost                   $  0.9      $  0.6      $  0.8
                                           ------------------------------------


The change in benefit  obligation and plan assets and a reconciliation of funded
status are as follows:

At December 31,                                        1998            1997
                                                       ----            ----
(in millions)
Change in Benefit Obligation
Projected benefit obligation at beginning of year     $  8.5            $ 5.9
  Service cost                                           0.6              0.4
  Interest cost                                          0.7              0.5
  Plan amendments                                        1.1              2.6
  Benefits paid                                         (0.6)            (0.4)
  Actuarial loss (gain)                                  0.8             (0.5)
                                                   -----------------------------
Projected benefit obligation at end of year           $ 11.1            $ 8.5
                                                   =============================

Change in Plan Assets
Fair value of plan assets at beginning of year        $  7.7            $ 3.7
  Actual return on plan assets                           2.5              0.5
  Plan amendment                                         -                2.5
  Employer contributions                                 1.5              1.4
  Benefits paid                                         (0.5)            (0.4)
                                                   -----------------------------
Fair value of plan assets at end of year              $ 11.2            $ 7.7
                                                   =============================

Reconciliation of Funded Status
  Funded status                                       $  0.1          $  (0.8)
  Unrecognized actuarial gain                           (1.7)            (0.6)
  Unrecognized transition obligation                     1.6              1.8
  Unrecognized prior service cost                        1.0              -
                                                   -----------------------------
   Net amount reflected in consolidated
     Balance sheet                                    $  1.0           $  0.4
                                                   =============================

Weighted Average Assumptions
Discount rate                                            7.0%            7.0%
Expected long-term rate of return on plan
  assets                                                 8.0%            8.0%
Rate of compensation increase                            4.0%            4.0%

<PAGE>
                                      A-40


Post-retirement Benefits:

The post-retirement health care plan for retired salaried employees eligible for
Medicare was adopted by the Company on May 1, 1996. Secondary coverage under the
Company's plan is available for all retired  salaried  employees who permanently
reside in the United States and who contribute amounts as defined by the plan.

The components of net periodic benefit costs are as follows:

For the years ended December 31,       1998         1997        1996
                                       ----         ----        ----
(in millions)
Service cost                          $  0.1       $  0.1        $ 0.1
Interest cost                            0.1          -            -
Amortization of prior service cost       0.1          0.1          0.1
Recognized actuarial loss                -            -            -
                                    --------------------------------------
Net periodic benefit cost             $  0.3       $  0.2        $ 0.2
                                    ======================================

The change in benefit  obligation and plan assets and a reconciliation of funded
status are as follows:

At December 31,                                   1998               1997
                                                  ----               ----
(in millions)
Change in Benefit Obligation
Benefit obligation at beginning of year            $ 0.9              $ 0.9
  Service cost                                       0.1                0.1
  Interest cost                                      0.1                -
  Plan amendments                                    0.1                -
  Benefits paid                                      -                  -
  Actuarial (gain) loss                              -                 (0.1)
                                           ------------------------------------
Benefit obligation at end of year                  $ 1.2              $ 0.9
                                           ====================================

Reconciliation of Funded Status
  Funded status                                    $(1.2)             $(0.9)
  Unrecognized actuarial loss                       (0.1)              (0.1)
  Unrecognized prior service cost                    0.6                0.6
                                           -----------------------------------
   Postretirement benefit obligation               $(0.7)             $(0.4)
                                           ====================================

Weighted-Average Assumptions
    Discount rate                                    7%                 7%
    Expected long-term rate of return 
      on plan assets                                N/A                N/A
    Rate of compensation increase                    4%                 4%

<PAGE>
                                      A-41


The annual  assumed rate of increase in the per capita cost of covered  benefits
(i.e.,  health care cost trend rate) is assumed to be 5% in 1999 and thereafter.
The health  care cost  trend rate  assumption  has a  significant  effect on the
amounts  reported.  For example,  increasing  the assumed health care cost trend
rates by one  percentage  point would  increase the  accumulated  postretirement
benefit  obligation  costs for 1998 by $0.1 million and the service and interest
cost   components  of  net  periodic   postretirement   benefit  would  have  an
insignificant change. Decreasing the assumed health care cost trend rates by one
percentage  point in each year would  decrease  the  accumulated  postretirement
benefit  obligation  for 1998 by $0.1 million and the service and interest  cost
components  of  net  periodic   postretirement   benefit  costs  would  have  an
insignificant change. The plan is unfunded.

Employee Savings Plan:

The Company  maintains  an employee  savings plan for  employees  working in the
United States and expatriate  employees in Peru which permits  employees to make
contributions  by salary  reduction  pursuant to section  401(k) of the Internal
Revenue  Code.  The plan was amended,  effective  January 1, 1997,  to include a
Company  matching  contribution  equal  to  50%  of  the  first  6% of  employee
contributions.   In   connection   with  the  required   match,   the  Company's
contributions charged against earnings were $0.2 million in 1998 and 1997.
<PAGE>
                                      A-42


14. Stockholders' Equity

Common Stock:

The stockholders of the Company at December 31, 1998 were:

                                                           Percent of 
                                                           Total Number
                                      Shares               of Shares
                                --------------------    --------------------


Class A Common Shares:
  ASARCO Incorporated               43,348,949                 54.3%
  Cerro Trading Company, Inc.       11,378,088                 14.2
  Phelps Dodge Overseas Capital
    Corporation                     11,173,796                 14.0
                                --------------------    --------------------
  Total Class A                     65,900,833                 82.5
Common Shares                       13,949,812                 17.5
                                --------------------    --------------------
  Total                             79,850,645                100.0%
                                --------------------    --------------------



  Class A common shares are entitled to five votes per share. Common shares are
  entitled to one vote per share.

  Stock Options:

  The Company has two  stockholder  approved plans, a Stock Incentive Plan and a
  Directors'  Stock  Award  Plan.  The Stock  Incentive  Plan  provides  for the
  granting of  nonqualified  or incentive  stock  options,  as defined under the
  Internal  Revenue  Code of  1986,  as  amended,  as well as for the  award  of
  restricted  stock and bonuses payable in stock. The price at which options may
  be granted under the Stock  Incentive  Plan shall not be less than 100% of the
  fair  market  value  of the  common  stock on the date of grant in the case of
  incentive  stock  options,  or 50% in the case of other  options.  In general,
  options are not  exercisable for six months and expire after 10 years from the
  date of grant.

  Options  granted may  provide  for Stock  Appreciation  Rights  (SAR).  An SAR
  permits an optionee,  in lieu of  exercising  the option,  to receive from the
  Company payment of an amount equal to the difference  between the market value
  of the stock on the date of election of the SAR and the purchase  price of the
  stock under the terms of the option.

  The authorized number of shares under the Stock Incentive Plan is 1,000,000 of
  which  300,000  may be awarded as  restricted  stock.  At December  31,  1998,
  737,610 shares are available for future grants under this plan (836,635 shares
  at December 31, 1997).  The weighted  average  remaining  contractual  life of
  stock option's outstanding as of December 31, 1998 was 8.3 years.

  The  Directors'   Stock  Award  Plan  provides  that  directors  who  are  not
  compensated  as  employees of the Company  will be  automatically  awarded 200
  shares of common stock upon election and 200 additional  shares following each
  annual meeting of stockholders  thereafter.  Under the directors plan, 100,000
  shares have been reserved for awards. At December 31, 1998, 11,400 shares have
  been awarded under this plan.

  The  Company  has  adopted  the  disclosure-only  provisions  of SFAS No. 123,
  "Accounting for Stock-Based Compensation".  Accordingly,  no compensation cost
  has been recognized for awards under the stock incentive plan. If compensation
  cost for the Company's Stock  Incentive Plan had been determined  based on the
  fair  value at the grant date for  awards in 1998,  1997 and 1996,  consistent
  


<PAGE>
                                      A-43

  with the  provisions  of SFAS No. 123, the Company's net earnings and earnings
  per share would have been reduced to the proforma amounts indicated below:

(in millions, except per share amounts)
                                              1998          1997         1996
                                              ----          ----         ----
Net earnings - as reported                    $54.6        $185.7       $180.5
Net earnings - pro forma                      $54.4        $185.5       $180.4
Earnings per share (Basic) - as reported      $0.68        $ 2.32       $ 2.25
Earnings per share (Diluted) - as reported    $0.68        $ 2.32       $ 2.25
Earnings per share (Basic) - pro forma        $0.68        $ 2.32       $ 2.25
Earnings per share (Diluted) - pro forma      $0.68        $ 2.32       $ 2.25


For purposes of computing  earnings per share,  basic and diluted,  the dilutive
effect of stock options on common shares outstanding is as follows:


Weighted average common shares outstanding:   1998          1997         1996
                                              ----          ----         ----
(in millions)
  Basic and diluted                           79.9           80.2         80.2


The fair value of each option grant was estimated on the date of grant using the
Black-Scholes  option-pricing  model  with the  following  assumptions  used for
grants  in 1998:  dividend  yield  of 4.8%  (4.05%-1997,  6.57%-1996);  expected
volatility of 40.4%  (29.2%-1997,  28.4%-1996);  risk-free interest rate of 5.6%
(6.31%-1997,  6.17%-1996);  and expected life of 7.1 years (7.0 years-1997,  6.9
years-1996).

Stock option  activity over the past three years under the Stock  Incentive Plan
was:
<TABLE>
<CAPTION>

                                                                             Weighted
                                                       Number of              Average                     Option Price
                                                         Shares                Price                    (Range Per Share)
                                                   ------------------    ------------------     ----------------------------------
<S>                                                          <C>               <C>                    <C>   
Outstanding at January 1, 1996                                 -                 -                      -
Granted                                                      72,890            $16.06                 $16.06
Exercised                                                      -                 -                      -
Canceled or expired                                            -                 -                      -
                                                   ------------------

Outstanding at January 1, 1997                               72,890             16.06                  16.06
Granted                                                      90,475             16.30                  16.25 to  17.06
Exercised                                                    (3,238)            16.06                  16.06
Canceled or expired                                          (1,342)            16.15                  16.06 to  16.25
                                                   ------------------

Outstanding at January 1, 1998                              158,785             16.20                  16.06 to  17.06
Granted                                                      99,025             12.78                  12.78
Exercised                                                      -                 -                      -
Canceled or expired                                            (960)            16.16                  16.06 to  16.25
                                                   ------------------

Outstanding and exercisable at
  December 31, 1998                                         256,850            $14.88                 $12.78 to $17.06

</TABLE>

15. Related Party Transactions

Asarco, a 54.3%  stockholder of the Company,  provides legal,  tax, treasury and
administrative  support services to the Company.  The amounts paid to Asarco for
these services were $1.0 million,  $1.6 million and $0.8 million in 1998,  1997,
and 1996, respectively.


<PAGE>
                                      A-44


16. Concentration of Risk

The Company  operates two copper mines, a smelter and two refineries in Peru and
substantially  all of its assets are located  there.  There can be no assurances
that the Company's operations and assets that are subject to the jurisdiction of
the  Government of Peru may not be adversely  affected by future actions of such
government.  Substantially all of the Company's  products are exported from Peru
to customers principally in Europe, Asia, South America and the United States.

Financial  instruments which potentially  subject the Company to a concentration
of  credit  risk  consist  primarily  of cash and cash  equivalents,  marketable
securities and trade accounts receivable.

The Company invests or maintains available cash with various high-quality banks,
principally in the U.S., Canada and Peru, or in commercial paper of highly rated
companies.  As  part of its  cash  management  process,  the  Company  regularly
monitors  the relative  credit  standing of these  institutions,  and by policy,
limits the amount of credit  exposure to any one  institution.  At December  31,
1998,  the Company had invested  28.6% of its cash  equivalents  and  marketable
securities  with Peruvian banks, of which 54.0% of this amount was invested with
one institution.

During  the  normal  course of  business,  the  Company  provides  credit to its
customers.  Although the receivables  resulting from these  transactions are not
collateralized,  the Company has not experienced  significant  problems with the
collection of receivables.

The  largest  ten trade  receivable  balances  accounted  for 58.3% of the trade
accounts  receivable  at December  31, 1998,  of which one customer  represented
12.1%.


17. Commitments and Contingencies

In September  1996, the Company  announced a two stage project which includes an
expansion of the Cuajone mine and an expansion and  modernization  of the copper
smelter  at Ilo.  Total  capital  cost for this  project  is  estimated  at $1.1
billion, budgeted to be spent through the year 2003.

The Cuajone mine  expansion  which  consists of an  expansion  in annual  copper
production  by 130 million  pounds at an estimated  capital  investment  of $245
million was  substantially  completed at December 31,  1998,  however,  some new
mining  equipment  will  continue  to be received  over the next two years.  The
second stage of the program,  the expansion and modernization of the Ilo smelter
is expected to be completed  over the period  1998-2003 at an estimated  cost of
$875 million.

In 1998,  the Company  commenced a $48 million  project to expand  annual  SX/EW
copper  production by 26 million pounds.  Project  completion is expected in the
third quarter of 1999.

As a result of the expansion program,  electric power requirements will increase
significantly,  requiring the construction of substantial  additional generating
capacity.  In 1997,  the Company sold its existing power plant to an independent
power company for $33.6 million.  In connection  with the sale, a power purchase
agreement  was also  completed,  under which the Company  agreed to purchase its
power needs for the next twenty years.
<PAGE>
                                      A-45


Environmental:

The Company's exploration, mining, milling, smelting and refining activities are
subject to  Peruvian  laws and  regulations,  including  environmental  laws and
regulations,  which  change  from  time to  time.  The  Company's  environmental
compliance and management plan,  PAMA,  approved in January 1997, sets forth the
investment  to  be  made  by  the  Company  to  comply  with  current   Peruvian
environmental  regulations applicable to its operations.  To implement the PAMA,
the Company is required to make a minimum annual  investment of 1% of net annual
sales  until  compliance  is met.  The PAMA will  require  the  Company  to make
significant  additional  capital  expenditures  to achieve  compliance  with the
maximum  permissible  levels for its  emissions  and waste  discharges  within a
period of five  years,  except  for  environmental  controls  applicable  to its
smelter  operation  which  must be put in  place  within  ten  years.  The  PAMA
contemplates a number of  environmental  projects,  the largest and most capital
intensive  of  which  is the  planned  modernization  of the  Ilo  smelter.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations - Expansion and  Modernization  Project." Under current  Peruvian law
and   regulations,   compliance   with  the  PAMA  will  satisfy   environmental
requirements  pertaining  to the  Company's  operations  during  the  applicable
five-or-ten year implementation period. The Company remains, however, subject to
other  environmental  requirements  applicable to its operations.  Environmental
capital  expenditures  were $25.3  million,  $43.8  million and $24.6 million in
1998, 1997 and 1996,  respectively.  In addition, the Company estimates spending
$75.9 million for environmental control capital expenditures in 1999.

Litigation:
In  April  1996,  the  Company  was  served  with a  complaint  filed in Peru by
approximately 800 former employees seeking the delivery of a substantial  number
of labor shares of its Peruvian  Branch plus  dividends.  In October  1997,  the
Superior Court of Lima nullified a decision of a court of first instance,  which
had been adverse to the Company.  The Superior Court remanded the case for a new
trial.  Plaintiffs  filed an  extraordinary  appeal before the Peruvian  Supreme
Court.  The Supreme Court may grant  discretionary  review in limited cases. The
Supreme  Court has not yet ruled as to whether it will accept the appeal.  There
is also pending  against the Company a similar  lawsuit filed by 127  additional
former  employees.  In the third  quarter of 1997,  the court of first  instance
dismissed their  complaint.  Upon appeal filed by the  plaintiffs,  the Superior
Court of Lima,  in the  third  quarter  of 1998,  nullified  the  lower  court's
decision  on  technical  grounds  and  remanded  the case to the lower court for
further proceedings.

It is the  opinion  of  management  that the  outcome  of the legal  proceedings
mentioned,  as  well as  other  miscellaneous  litigation  and  proceedings  now
pending,  will not  materially  adversely  affect the financial  position of the
Company  and  its  consolidated  subsidiaries.  However,  it  is  possible  that
litigation matters could have a material effect on quarterly or annual operating
results, when they are resolved in future periods.

<PAGE>
                                      A-46

<TABLE>

Unaudited Quarterly Data
Quarters
(in millions, except per share data)

<CAPTION>

                                              1998                                                1997
                                              ----                                                ----

                             1st      2nd        3rd         4th       Year         1st     2nd       3rd        4th       Year
                          ==========================================================================================================

<S>                         <C>      <C>        <C>         <C>       <C>           <C>    <C>        <C>        <C>        <C>   
Net sales                 $152.4     $152.5     $173.8      $149.2    $627.9      $214.8   $226.2     $202.3     $170.9    $814.2
Operating
  income                  $ 17.3     $ 19.7     $ 30.2      $  2.9    $ 70.1      $ 75.3   $ 74.0     $ 51.0     $ 35.1    $235.4

Net earnings              $ 12.9     $ 18.4     $ 19.9      $  3.4    $ 54.6      $ 55.8   $ 59.6     $ 39.9     $ 30.4    $185.7

Net earnings per share:                                                                       
  Basic                   $ 0.16     $ 0.23     $ 0.25      $ 0.04    $ 0.68      $ 0.70   $  0.74    $  0.50    $  0.38   $  2.32
  Diluted                 $ 0.16     $ 0.23     $ 0.25      $ 0.04    $ 0.68      $ 0.70   $  0.74    $  0.50    $  0.38   $  2.32
Dividend per share        $ 0.20     $ 0.08     $ 0.11      $ 0.12    $ 0.51      $ 0.30   $  0.35    $  0.37    $  0.24   $  1.26

Stock prices
New York Stock Exchange:
  High                    $15-1/8    $16-11/16  $13-1/2     $12-7/8   $16-11/16   $17-3/8  $21-1/8    $20-7/8    $18-1/4   $21-1/8
  Low                     $12-1/2    $13        $8-3/4      $8-15/16  $8-3/4      $15      $16-7/8    $17-5/8    $12-3/4   $12-3/4

Lima Stock Exchange:
  High                    $14.95     $16.50     $13.35      $12.70    $16.50      $17.35   $21.20     $21.06     $17.99    $21.20
  Low                     $12.40     $12.95     $8.93       $8.89     $8.89       $14.85   $16.80     $17.30     $12.58    $12.58

Metal Price Sensitivity

</TABLE>

Assuming that expected metal  production and sales are achieved,  that tax rates
are unchanged, that the number of shares outstanding is unchanged, and giving no
effect to hedging  programs or changes in the costs of  production,  metal price
sensitivity  factors would indicate the following  estimated  change in earnings
per share  resulting  from metal price  changes in 1999.  Estimates are based on
79.9 million shares outstanding.

                            Copper              Silver             Molybdenum

Change in Metal Price       $0.01/lb.           $1.00/oz.          $1.00/lb.
Annual Change in Earnings
per Share                   $0.06               $0.02              $0.10

<PAGE>
                                      A-47


                        Report of Independent Accountants




To the Board of Directors and Stockholders
of Southern Peru Copper Corporation

In our opinion,  the  accompanying  consolidated  balance sheets and the related
consolidated  statements  of earnings,  cash flows and changes in  stockholders'
equity  present  fairly,  in all material  respects,  the financial  position of
Southern Peru Copper  Corporation and  subsidiaries  (the "Company") at December
31, 1998 and 1997, and the results of their  operations and their cash flows for
each of the three years in the period ended  December 31,  1998,  in  conformity
with generally accepted accounting  principles.  These financial  statements are
the responsibility of the Company's management; our responsibility is to express
an opinion on these financial  statements based on our audits.  We conducted our
audits of these  statements  in  accordance  with  generally  accepted  auditing
standards which require that we plan and perform the audit to obtain  reasonable
assurance   about  whether  the  financial   statements  are  free  of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the  amounts  and  disclosures  in  the  financial  statements,   assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall  financial  statement  presentation.  We believe that our
audits provide a reasonable basis for the opinion expressed above.




PricewaterhouseCoopers LLP
New York, New York
January 22, 1999

<PAGE>
                                      A-48


Item  9.  Changes  In and  Disagreements  with  Accountants  on  Accounting  and
Financial Disclosure

None.

                                    PART III


Items 10, 11, 12, and 13

Reference  is  made  to  the  Section  captioned   "Executive  Officers  of  the
Registrant"  on pages A-12 to A-13.  Information  in response to the  disclosure
requirements  specified by these items  appears  under the captions and pages of
the 1999 Proxy Statement indicated below:


                                                                         Proxy
                                                                      Statement
Item  Required Information       Proxy Statement Section                Pages

10.  Directors and Executive     Nominees for Election as Directors
       Officers                    Representing Common Stock and
                                   Nominees for Election as
                                   Directors Representing
                                   Class A Common Stock                   4-6
                                 Section 16(a) Beneficial Ownership
                                   Reporting Compliance                  20-21
11.  Executive Compensation      Committee Reports on Executive
                                   Compensation through Employment
                                   Agreements                            11-17
                                 Compensation of Directors and
                                   Compensation Committee Interlocks
                                   and Insider Participation                20
12.  Security Ownership          Security Ownership of Certain
                                   Beneficial Owners and Beneficial
                                   Ownership of Management                7-11
13.  Certain Relationships       Certain Transactions                    18-19
       and Related Transactions




The information referred to above is incorporated herein by reference.


                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules and Reports on Form 8-K

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

      1.  Financial Statements

     The following financial  statements of Southern Peru Copper Corporation and
its  subsidiaries  are included at the indicated pages of the document as stated
below:

<PAGE>
                                      A-49


                                                                        Form
                                                                        10 - K
                                                                        Pages
  Consolidated Statement of Earnings for the years ended
  December 31, 1998, 1997 and 1996                                       A26

  Consolidated Balance Sheet at December 31, 1998 and 1997               A27

  Consolidated Statement of Cash Flows for the years ended
  December 31, 1998, 1997 and 1996                                       A28

  Consolidated Statement of Stockholders' Equity for the
  years ended December 31, 1998, 1997 and 1996                           A29

  Notes to Consolidated Financial Statements                         A30 - A46

  Report of Independent Accountants                                      A47

   2. Financial Statement Schedules

      Financial Statement Schedules are omitted, as they are not required or are
not applicable, or the required information is shown in the financial statements
or notes thereto.

   3. Exhibits

     3.1  Restated Certificate of Incorporation, filed December 29, 1995

     3.2  Certificate of Decrease, filed February 29, 1996

     3.3  Certificate of Increase, filed February 29, 1996

     3.4  Certificate of Decrease, filed March 24, 1997

     3.5  Certificate of Increase, filed March 24, 1997

     3.6  By-Laws, as last amended on February 3, 1998

     4.1  Indenture,  dated as of May 30, 1997,  among  Southern  Peru  Limited,
          Southern Peru Copper Corporation, as guarantor, and Citibank, N.A., as
          Trustee.

     4.2  Supplemental Indenture,  dated as of May 30, 1997, among Southern Peru
          Limited, Southern Peru Copper Corporation, as guarantor, and Citibank,
          N.A., as Trustee.

     4.3  Form of Amended and Restated  Collateral Trust Agreement,  dated as of
          July 15, 1997, between Southern Peru Limited and Deutsche Bank AG, New
          York Branch, as collateral trustee.

     4.4  Form of Series A-1 Secured Export Notes due 2007

     4.5  Supplemental  Indenture,  dated as of October 15, 1998 among  Southern
          Peru Limited,  Southern  Peru Copper  Corporation  as  guarantor,  and
          Citibank, N.A., as Trustee.
<PAGE>
                                      A-50


    4.6   Supplemental Indenture, dated as of December 22, 1998 between Southern
          Peru Copper Corporation and Citibank, N.A. as Trustee.

    10.1  Form of Agreement Among Certain Stockholders of the Company

    10.2  Tax Stability Agreement,  dated August 8, 1994, between the Government
          of  Peru  and  the  Company  regarding  SX/EW  facility  (and  English
          translation)

    10.3  Incentive Compensation Plan of the Company

    10.4  Supplemental  Retirement Plan of the Company,  as amended and restated
          April 30, 1998

    10.5  Stock Incentive Plan of the Company

    10.6  Form of Directors Stock Award Plan of the Company

    10.7  Deferred Fee Plan for  Directors,  as amended and  restated  April 30,
          1998

    10.8  Form of Agreement Accepting Membership in the Plan, containing text of
          Retirement Plan and Trust for Selected Employees

    10.9  Compensation Deferral Plan, as amended and restated April 30, 1998

    10.10 Credit  Agreement  dated as of March  31,  1997  among  Southern  Peru
          Limited, as Borrower,  Southern Peru Copper Corporation, as Guarantor,
          the several banks and other financial  institutions  from time to time
          parties to the Credit Agreement,  Morgan Guaranty Trust Company of New
          York,  as   Administrative   Agent,   The  Chase  Manhattan  Bank,  as
          Documentation Agent, Citicorp Securities,  Inc., as Syndication Agent,
          and  Deutsche  Bank AG, New York Branch,  as Security  and  Collateral
          Agent.

    10.11 First Amendment to the Credit Agreement, dated July 14, 1997.

    10.12 Assignment  and  Assumption  Agreement  dated as of December 30, 1998,
          between Southern Peru Copper Corporation, a Delaware Corporation,  and
          Southern Peru Limited.

    10.13 Consulting  Agreement  between the Company and Mr. C. G. Preble  dated
          March 18, 1999.

    11.   Statement re Computation of Earnings Per Share

    21.1  Subsidiaries of the Company

    23.1  Consent of Independent Accountants


The  exhibits  listed as 10.4  through  10.9 and 10.13 above are the  management
contracts or compensatory plans or arrangements required to be filed pursuant to
Item 14(c) of Form 10-K.

(B)  Reports  on Form 8-K  filed in the  fourth  quarter  of 1997 and the  first
quarter of 1998:

None.
<PAGE>
                                      A-51


(C)      Exhibits - The  exhibits  to this Form 10-K are  listed on the  Exhibit
         Index on page B1 through B3. Copies of the following exhibits are filed
         with this Form 10-K:

     4.5  Supplemental  Indenture,  dated as of October 15, 1998 among  Southern
          Peru Limited,  Southern  Peru Copper  Corporation  as  guarantor,  and
          Citibank, N.A., as Trustee.

     4.6  Supplemental Indenture, dated as of December 22, 1998 between Southern
          Peru Copper Corporation and Citibank, N.A., as Trustee.

    10.4  Supplemental  Retirement Plan of the Company,  as amended and restated
          as of April 30, 1998

    10.7  Deferred Fee Plan for  Directors,  as amended and restated as of April
          30, 1998

    10.9  Compensation  Deferral  Plan,  as amended and restated as of April 30,
          1998

    10.12 Assignment  and  Assumption  Agreement  dated as of December 30, 1998,
          between Southern Peru Copper Corporation,  a Delaware  Corporation and
          Southern Peru Limited.

    10.13 Consulting  Agreement  between the Company and Mr. C. G. Preble  dated
          March 18, 1999

    11.   Statement re Computation of Earnings Per share

    21.1  Subsidiaries of the Company


    23.1  Consent of Independent Accountants


Copies of exhibits may be acquired upon written request to the Secretary and the
payment of processing and mailing costs.
<PAGE>
                                      A-52


                                   SIGNATURES

      Pursuant  to the  requirements  of Section  13 or 15(d) of the  Securities
Exchange Act of 1934, as amended,  the Registrant has duly caused this Report on
Form  10-K  to be  signed  on its  behalf  by the  undersigned,  thereunto  duly
authorized, in the City of New York, State of New York.

                                    SOUTHERN PERU COPPER CORPORATION
                                    (Registrant)


                                 By: /s/ Charles G. Preble       
                                    Charles G. Preble
                                    President and Chief Executive Officer

Date:  March 9, 1999

       Pursuant to  requirements  of the Securities  Exchange Act of 1934,  this
Report on Form 10-K has been signed below by the following  persons on behalf of
the Registrant and in the capacities and on the dates indicated.


    /s/ Richard de J. Osborne       Chairman of the Board and Director
Richard de J. Osborne

    /s/ Charles G. Preble           President, Chief Executive Officer 
Charles G. Preble                   and Director (principal executive officer)

    /s/ Thomas J. Findley, Jr.      Vice President and Chief  Financial Officer
Thomas J. Findley, Jr.              (principal financial officer)

    /s/ Brendan M. O'Grady          Comptroller (principal accounting officer)
Brendan M. O'Grady

                                    DIRECTORS

    /s/ Everett E. Briggs                 /s/ Robert J. Muth
Everett E. Briggs                     Robert J. Muth

    /s/ Jaime Claro                       /s/ Robert A. Pritzker
Jaime Claro                           Robert A. Pritzker

    /s/ William Dowd                      /s/ Michael O. Varner
William Dowd                          Michael O. Varner

    /s/ Augustus B. Kinsolving            /s/ J. Steven Whisler
Augustus B. Kinsolving                J. Steven Whisler

    /s/ Francis R. McAllister             /s/ David B. Woodbury
Francis R. McAllister                 David B. Woodbury

    /s/ John F. McGillicuddy          _________________________
John F. McGillicuddy                  Douglas C. Yearley

    /s/ Kevin R. Morano
Kevin R. Morano

Date:  March 9, 1999

<PAGE>
                                      B-1
<TABLE>


                        Southern Peru Copper Corporation
                                  Exhibit Index
<CAPTION>
Sequential
Exhibit                                                                                                   Page
Number                                      Document Description                                         Number
<S>     <C>                                                                                              <C>

 3.   Certificate of Incorporation and By-Laws

 3.1  Restated Certificate of Incorporation, filed December 29, 1995 (Filed as
      Exhibit  3.1  to the  Company's  1995  Annual  Report  on  Form  10-K  and
      incorporated herein by reference)

 3.2  Certificate  of Decrease,  filed February 29, 1996 (Filed as Exhibit 3.2
      to the Company's 1995 Annual Report on Form 10-K and  incorporated  herein
      by reference)

 3.3  Certificate  of Increase,  filed February 29, 1996 (Filed as Exhibit 3.3
      to the Company's 1995 Annual Report on Form 10-K and  incorporated  herein
      by reference)

 3.4  Certificate  of Decrease,  filed March 24, 1997 (Filed as Exhibit 3.6 to
      the  Company's  Quarterly  Report on Form 10-Q for the quarter ended March
      31, 1997 and incorporated herein by reference)

 3.5  Certificate  of Increase,  filed March 24, 1997 (Filed as Exhibit 3.5 to
      the  Company's  Quarterly  Report on Form 10-Q for the quarter ended March
      31, 1997 and incorporated herein by reference)

 3.6  By-Laws, as last amended on February 3, 1998

 4.   Instruments Defining Rights of Security Holders

 4.1  Indenture, dated as of May 30, 1997, among Southern Peru Limited, Southern
      Peru Copper Corporation, as guarantor, and Citibank, N.A., as Trustee. 
      (Filed as Exhibit 4.1(a) to the Company's  Registration  Statement on Form
      S-4,  as  amended by  Amendment  No. 1 thereto,  File No.  333-34505,  and
      incorporated herein by reference)

 4.2  Supplemental  Indenture,  dated as of May 30, 1997,  among Southern Peru
      Limited,  Southern Peru Copper  Corporation,  as guarantor,  and Citibank,
      N.A., as Trustee.
      (Filed as Exhibit 4.1(b) to the Company's  Registration  Statement on Form
      S-4,  as  amended by  Amendment  No. 1 thereto,  File No.  333-34305,  and
      incorporated herein by reference)

 4.3  Form of Amended and Restated  Collateral  Trust  Agreement,  dated as of
      July 15, 1997,  between  Southern  Peru Limited and Deutsche  Bank AG, New
      York  Branch,  as  collateral  trustee.
      (Filed as Exhibit 4.1(c) to the Company's  Registration  Statement on Form
      S-4,  as  amended by  Amendment  No. 1 thereto,  File No.  333-34305,  and
      incorporated herein by reference)
</TABLE>

<PAGE>
                                      B-2

<TABLE>

                        Southern Peru Copper Corporation
                                  Exhibit Index
<CAPTION>
Sequential
Exhibit                                                                                                   Page 
Number                          Document Description                                                     Number
<S>     <C>                                                                                               <C>

 4.4  Form of Series  A-1  Secured  Export  Notes due 2007  (Filed as  Exhibit
      4.1(d) to the Company's  Registration Statement on Form S-4, as amended by
      Amendment No. 1 thereto,  File No. 333-34305,  and incorporated  herein by
      reference)

 4.5  Supplemental Indenture, dated as of October 15, 1998 among Southern Peru
      Limited,  Southern Peru Copper  Corporation  as  guarantor,  and Citibank,
      N.A., as Trustee                                                                                   B7-B12

 4.6  Supplemental  Indenture,  dated as of December 22, 1998 between Southern
      Peru  Copper  Corporation  and  Citibank,  N.A.,  as Trustee                                       B13-B17  

10.   Material Contracts

10.1  Form of Agreement  Among Certain  Stockholders of the Company (Filed as
      Exhibit  10.1 to the  Company's  Registration  Statement  on Form S-4,  as
      amended by  Amendments  No. 1 and 2 thereto,  File No 33-97790  (the "Form
      S-4"), and incorporated herein by reference)

10.2  Tax Stability  Agreement,  dated August 8, 1994, between the Government
      of Peru and the Company regarding SX/EW facility (and English translation)
      (Filed as Exhibit 10.3 to the Company's Form S-4 and  incorporated  herein
      by reference)

10.3  Incentive  Compensation  Plan of the Company (Filed as Exhibit 10.11 to
      the Company's Form S-4 and incorporated herein by reference)

10.4  Supplemental Retirement Plan of the Company, as amended and restated as
      of April 30, 1998                                                                                  B18-23 

10.5  Stock  Incentive  Plan of the  Company  (Filed  as an  Exhibit  to the
      Company's  Registration  Statement  on  Form  S-8  dated  March  25,  1996
      (Registration No. 333-2736) and incorporated herein by reference)

10.6  Form of  Directors  Stock Award Plan of the  Company  (Filed as Exhibit
      10.16 to the Company's Form S-4 and incorporated herein by reference)

10.7  Deferred  Fee Plan for  Directors,  as amended and restated as of April
      30, 1998                                                                                           B24-29

10.8  Form of Agreement Accepting Membership in the Plan,  containing text of
      Retirement Plan and Trust for Selected  Employees  (Filed as Exhibit 10.17
      to the Company's Form S-4 and incorporated herein by reference)

</TABLE>

<PAGE>
                                      B-3

<TABLE>

                        Southern Peru Copper Corporation
                                  Exhibit Index
Sequential
Exhibit                                                                                                   Page
Number                                      Document Description                                         Number
<S>     <C>                                                                                               <C>

10.9  Compensation  Deferral  Plan,  as amended and restated as of April 30,
      1998                                                                                               B30-B36

10.10 Credit  Agreement  dated as of  March  31,  1997  among  Southern  Peru
      Limited, as Borrower,  Southern Peru Copper Corporation, as Guarantor, the
      several banks and other financial  institutions  from time to time parties
      to the Credit  Agreement,  Morgan  Guaranty  Trust Company of New York, as
      Administrative  Agent, The Chase Manhattan Bank, as  Documentation  Agent,
      Citicorp Securities, Inc., as Syndication Agent, and Deutsche Bank AG, New
      York Branch, as Security and Collateral  Agent.  (Filed as Exhibit 10.9 to
      the Company's  Registration  Statement on Form S-4, File No. 333-3405, and
      incorporated herein by reference)

10.11 First Amendment to the Credit  Agreement,  dated July 14, 1997. (Filed
      as Exhibit 10.10 to the Company's Registration Statement on Form S-4, File
      No. 333-34305, and incorporated herein by reference)

10.12 Assignment and  Assumption  Agreement  dated as of December 30, 1998,
      between  Southern Peru Copper  Corporation,  a Delaware  Corporation,  and
      Southern Peru Limited                                                                              B37-B38

10.13 Consulting  Agreement  between the Company and Mr. C. G. Preble dated
      March 18, 1999                                                                                     B39-B40

11.   Statement re Computation of Earnings per Share                                                     B4

21.1  Subsidiaries of the Company                                                                        B5

23.1  Consent of Independent Accountants                                                                 B6
</TABLE>

<PAGE>
                                      B-4


Form 10K


Exhibit 11 Statement re Computation of Earnings per Share

This calculation is submitted in accordance with regulation S-K item 601(b)(11).
<TABLE>

Diluted Earnings per Common Share
(in thousands, except per share amounts)


<CAPTION>
For the years ended December 31,                     1998             1997             1996
- --------------------------------                     ----             ----             ----

<S>                                                 <C>             <C>             <C>      
Net earnings applicable to common stock             $54,564         $185,658         $180,512
                                             ==================================================

Weighted average number of common shares
   outstanding
                                                     79,893           80,188           80,195
Shares issuable from assumed exercise of 
   Stock Options                                          -                9               57
                                             --------------------------------------------------
Weighted average number of common shares
   outstanding, adjusted                             79,893           80,197           80,252

Diluted earnings per share:
Net earnings applicable to common stock               $0.68            $2.32            $2.25
                                             ==================================================

Basic earnings per share
Net earnings applicable to common stock               $0.68            $2.32            $2.25
                                             ==================================================

</TABLE>

<PAGE>
                                      B-5


                                                                    Exhibit 21.1

                        SOUTHERN PERU COPPER CORPORATION

                                  Subsidiaries

                            (More than 50% ownership)


                                                               Percentage of 
                                                                 voting 
                                                                securities 
                                                                  owned
                                                             Or other bases
      Name of Company                                             control


PARENT:   ASARCO Incorporated (New Jersey)

Registrant:  Southern Peru Copper Corporation (Delaware)

         Fomenta, S.A. (Peru)                                    99.50
                  Pegasus Travels, S.A. (Peru)                   90.0
         Logistics Services Incorporated (Delaware)              100.0
                  LSI-Peru, S.A. (Peru)                          98.18
         Multimines Insurance Company, Ltd. (Bermuda)            100.0
         Recursos e Inversiones Andinas, S. A. (Peru)            99.99



Not included in this listing are  subsidiaries  which in the aggregate would not
constitute a significant subsidiary.

<PAGE>
                                      B-6


                                                                    Exhibit 23.1

Form 10-K


Consent of Independent Accountants


We consent to the  incorporation by reference in the  prospectuses  constituting
part of the  Registration  Statements  on Form  S-8  (File  Nos.  333-02736  and
333-40293) of Southern Peru Copper  Corporation  of our report dated January 22,
1999,  on our audit of the  consolidated  financial  statements of Southern Peru
Copper  Corporation and  Subsidiaries,  which report appears on page A47 of this
Annual Report on Form 10-K.

We also  consent to the  reference  to our Firm as  experts in the  prospectuses
referred to in the preceding paragraph only insofar as such reference relates to
our report appearing on page A47 of this Annual Report on Form 10-K.




                                PricewaterhouseCoopers LLP



New York, New York

March 18, 1999

<PAGE>
                                      B-7


                                   Exhibit 4.5



                             SUPPLEMENTAL INDENTURE

                          Dated as of October 15, 1998
                                     
                                     among

                              SOUTHERN PERU LIMITED
                                    Company,

                        SOUTHERN PERU COPPER CORPORATION,
                                    Guarantor

                                       and

                                 CITIBANK, N.A.

                         as Trustee under the Indenture
                            dated as of May 30, 1997
                        relating to Secured Export Notes
<PAGE>
                                      B-8


TABLE OF CONTENTS
                                                                        Page


                                    ARTICLE I
                      DEFINITIONS AND RULES OF CONSTRUCTION

1.1      Definitions.....................................................1


                                   ARTICLE II

                                  MISCELLANEOUS

2.1      Amendment of Section 608 of Article Six.........................2
2.2      Scope...........................................................2


                                   ARTICLE III

                                  MISCELLANEOUS

3.1      Execution of Supplemental Indenture.............................2
3.2      Conflicts.......................................................2
3.3      Counterparts....................................................3
3.4      GOVERNING LAW...................................................3

<PAGE>
                                      B-9


                             SUPPLEMENTAL INDENTURE

                  This SUPPLEMENTAL INDENTURE dated as of October 15, 1998 among
Southern Peru Limited,  a corporation  organized under the laws of Delaware (the
"Company"),  Southern Peru Copper Corporation, a corporation organized under the
laws of Delaware, as Guarantor (the "Guarantor"), and Citibank, N.A., a national
banking association, as trustee (the "Trustee"),  registrar and principal paying
agent.

                                    RECITALS

                  WHEREAS,  the Company and the Guarantor  have entered into (i)
an Indenture  (the  "Original  Indenture")  dated as of May 30,  1997,  with the
Trustee, the Registrar and the Principal Paying Agent providing for the issuance
by the Company and guarantee by the  Guarantor  from time to time in one or more
series of up to $750,000,000  aggregate principal amount of secured export notes
and (ii) a Supplemental  Indenture,  dated as of May 30, 1997, providing for the
issuance of $150,000,000  aggregate  principal  amount of the Company's  secured
export notes designated as its 7.90% Series A Secured Export Notes due 2007;

                  WHEREAS,  pursuant  to  paragraph  (9) of Section  1001 of the
Original  Indenture,  the Company and the  Guarantor,  when  authorized by their
respective Board Resolutions,  and the Trustee may, without the vote or approval
of any Holders,  enter into a  Supplemental  Indenture for the purpose of, inter
alia,  curing any ambiguity or correcting or supplementing  any provision in the
Original  Indenture  which  may be  defective  or  inconsistent  with any  other
provisions in the Original Indenture,  if such action shall not adversely affect
the interests of the Holders of SENs of any Series in any material respect; and

                  NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH,
that in consideration of the premises,  for the equal and ratable benefit of all
Holders of any Series of SENs,  the parties hereto agree to supplement and amend
the Original Indenture as follows:


                                    ARTICLE I

                      DEFINITIONS AND RULES OF CONSTRUCTION

                  Section 1.1 Definitions For all purposes of this  Supplemental
Indenture,  except  as  otherwise  expressly  provided  or  unless  the  context
otherwise requires:

                  (1) the  terms  defined  in this  Article  have  the  meanings
                  assigned  to them in this  Article  and  include the plural as
                  well as the singular;

                  (2) all other terms used herein which are defined in the Trust
                  Indenture Act, either directly or by reference  therein,  have
                  the meanings assigned to them therein;


<PAGE>
                                      B-10


                  (3) the words  "herein",  "hereof' and  "hereunder"  and other
                  words of similar import refer to this  Supplemental  Indenture
                  as a whole and not to any particular Article, Section or other
                  subdivision;

                  (4) unless the context otherwise requires, any reference to an
                  "Article" or a "Section" refers to an Article or a Section, as
                  the case may be, of this Supplemental Indenture; and

                  (5) the terms which are defined in the Original Indenture have
                  the respective meanings assigned therein.

                  "Original  Indenture"  has the meaning  specified  in the 
                  recitals to this Supplemental Indenture.


                                   ARTICLE II

                                    AMENDMENT

                  Section 2.1  Amendment of Section 608 of Article Six.  Section
608 of Article Six is hereby amended by deleting the  parenthetical  phrase that
occurs after the words  "pursuant to this Article" and inserting after the words
"shall be applied" the following parenthetical phrase:

          "(except  to the extent  applied or released  in  accordance  with the
provisions of Section 601 or 602)".

                  Section 2.2 Scope.  Except as expressly amended herein, all of
the provisions of the Original  Indenture and the Supplemental  Indenture,  each
dated as of May 30, 1997, are and shall continue to be in full force and effect.


                                   ARTICLE III

                                  MISCELLANEOUS

                  Section  3.1  Execution  of   Supplemental   Indenture.   This
Supplemental  Indenture  is  executed  and shall be  construed  as an  indenture
supplemental  to the  Original  Indenture  and,  as  provided  in  the  Original
Indenture, this Supplemental Indenture forms a part thereof.

                  Section  3.2  Conflicts.  In the case of a conflict  between a
provision of this  Supplemental  Indenture (a "Supplemental  Provision") and any
other  provision of the Original  Indenture,  the  Supplemental  Provision shall
control.


<PAGE>
                                      B-11


                  Section 3.3 Counterparts.  This Supplemental  Indenture may be
executed  in any  number of  counterparts,  each of which so  executed  shall be
deemed to be an original,  but all such counterparts  shall together  constitute
but one and the same instrument.


                  Section 3.4 GOVERNING LAW. THIS  SUPPLEMENTAL  INDENTURE SHALL
BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE  WITH,  THE LAWS OF THE STATE OF NEW
YORK APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED ENTIRELY WITHIN THE STATE
OF NEW YORK.

<PAGE>
                                      B-12


                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Supplemental  Indenture  to be duly  executed as of the day and year first above
written.

                           SOUTHERN PERU LIMITED


                            By:  /s/ C.F. Schultz           
                                 Name:    C.F. Schultz
                                 Title:      Treasurer



                            SOUTHERN PERU COPPER CORPORATION


                            By:  /s/ C.F. Schultz           
                                Name:      C.F. Schultz
                                Title:      Treasurer




                            CITIBANK, N.A.,
                            as Trustee, Principal Paying Agent and Registrar


                            By:  /s/ Jenny Cheng            
                                 Name:   Jenny Cheng
                                 Title:     Assistant Vice President

<PAGE>
                                      B-13




================================================================================
                                   Exhibit 4.6



                             SUPPLEMENTAL INDENTURE

                          Dated as of December 22, 1998

                                     between

                        SOUTHERN PERU COPPER CORPORATION,

                                       and

                                 CITIBANK, N.A.

                         as Trustee under the Indenture
                            dated as of May 30, 1997
                        relating to Secured Export Notes



                                 ---------------














================================================================================

<PAGE>
                                      B-14

                                TABLE OF CONTENTS

                                                                           Page


                                    ARTICLE I

                      DEFINITIONS AND RULES OF CONSTRUCTION

1.1  Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

 .
                                   ARTICLE II

                                   ASSUMPTION

2.1  Assumption . . . . . . . . . . . . . . . . . . . . . . . . . . .  . .   2


                                   ARTICLE III

                                  MISCELLANEOUS

3.1  Execution of Supplemental Indenture  . . . . . . . . . . . . . . . . .  2
 .
3.2  Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
 .
3.3  Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3

3.4  GOVERNING LAW  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
<PAGE>
                                      B-15


                             SUPPLEMENTAL INDENTURE


                  This  SUPPLEMENTAL  INDENTURE  dated as of  December  22, 1998
between Southern Peru Copper Corporation, a corporation organized under the laws
of Delaware  ("SPCC") and Citibank,  N.A., a national  banking  association,  as
trustee ( the "Trustee"), registrar and principal paying agent.

                                    RECITALS

                  WHEREAS,  Southern  Peru Limited (the  "Issuer") and SPCC have
entered into (i) an Indenture  (the  "Original  Indenture")  dated as of May 30,
1997, with the Trustee,  the Registrar and the Principal  Paying Agent providing
for the  issuance by the Issuer and the  guarantee  by SPCC from time to time in
one or more series of up to $750,000,000  aggregate  principal amount of secured
export notes (ii) a Supplemental Indenture,  dated as of May 30, 1997, providing
for the  issuance of  $150,000,000  aggregate  principal  amount of the Issuer's
secured  export notes  designated as its 7.90% Series A secured Export Notes due
2007 (the "Notes") and (iii) a Supplemental  Indenture,  dated as of October 15,
1998  (the  Original  Indenture  and  such  two  Supplemental  Indentures,   the
"Indenture");

                  WHEREAS,  pursuant to Section 901 of the  Original  Indenture,
the Issuer may merge with and into SPCC  provided  that SPCC  complies  with the
applicable requirements of such Section;

                  WHEREAS,  pursuant  to  paragraph  (1) of Section  1001 of the
Original  Indenture,  a  Supplemental  Indenture may be entered into without the
vote or approval of any Holders for the purpose of, inter alia,  evidencing  the
succession  of another  Person to the  Company  and the  assumption  by any such
successor of the covenants of the Company contained in the Indenture;

                  WHEREAS,   the  Issuer  is  to  be  merged  with and into  
SPCC,  as contemplated by Section 901 of the Original Indenture (the "Merger");

                  NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITHNESSETH,  that
in  consideration  of the  premises,  for the equal and  ratable  benefit of all
Holders of any Series of SENs,  the parties hereto agree to supplement and amend
the Original Indenture as follows:


                                    ARTICLE I

                      DEFINITIONS AND RULES OF CONSTRUCTION

                  Section 1.1 Definition.  For all purposes of this Supplemental
Indenture,  except  as  otherwise  expressly  provided  or  unless  the  context
otherwise requires:
<PAGE>
                                      B-16



     (1)  the terms  defined in this Article have the meanings  assigned to them
          in this Article and include the plural as well as the singular;

     (2)  all other terms used herein  which are defined in the Trust  Indenture
          Act,  either  directly  or by  reference  therein,  have the  meanings
          assigned to them therein;

     (3)  the words  "herein",  "hereof"  and  "hereunder"  and  other  words of
          similar import refer to this Supplemental Indenture as a whole and not
          to any particular Article, Section or other subdivision;

     (4)  unless the context otherwise  requires,  any reference to an "Article"
          or a "Section" refers to an Article or a Section,  as the case may be,
          of this Supplemental Indenture; and

     (5)  the  terms  which  are  defined  in the  Original  Indenture  have the
          respective meanings assigned therein.

          "Indenture",  "Merger",  "Notes"  and  "Original  Indenture"  have the
     respective   meanings  specified  in  the  recitals  to  this  Supplemental
     Indenture.


                                   ARTICLE II

                                   ASSUMPTION

                  Section 2.1 Assumption.  Upon the effectiveness of the Merger,
SPCC hereby assumes the due and punctual  payment of the principal of,  premium,
if any, and interest and Additional  Amounts,  if any, on the Notes according to
their terms. SPCC further assumes the due and punctual performance of all of the
covenants and  obligation of the Company under the Notes and the Indenture  upon
the effectiveness of the Merger. From and after the Merger (i) all references to
the Company in the  Indenture  shall be deemed to be references to SPCC and (ii)
all  references to the Guarantor in the Indenture,  and all provisions  relating
solely to the Guarantor, shall be deemed to be deleted.

                                   ARTICLE III

                                  MISCELLANEOUS

                  Section  3.1  Execution  of   Supplemental   Indenture.   This
Supplemental  Indenture  is  executed  and shall be  construed  as an  indenture
supplemental  to the  Original  Indenture  and,  as  provided  in  the  Original
Indenture, this Supplemental Indenture forms a part thereof.

                  Section  3.2  Conflicts.  In the case of a conflict  between a
provision of this  Supplemental  Indenture (a "Supplemental  Provision") and any
other  provision of the Original  Indenture,  the  Supplemental  Provision shall
control.
<PAGE>
                                      B-17


                  Section 3.3 Counterparts.  This Supplemental  Indenture may be
executed  in any  number of  counterparts,  each of which so  executed  shall be
deemed to be an original,  but all such counterparts  shall together  constitute
but one and the same instrument.

                  Section 3.4 GOVERNING LAW. THIS  SUPPLEMENTAL  INDENTURE SHALL
BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE  WITH,  THE LAWS OF THE STATE OF NEW
YORK APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED ENTIRELY WITHIN THE STATE
OF NEW YORK.

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Supplemental  Indenture  to be duly  executed as of the day and year first above
written.

                        SOUTHERN PERU COPPER CORPORATION


                                            By:   /s/ Kevin R. Morano
                                                      Name:    Kevin R. Morano
                                                      Title:   Vice President

                                            CITIBANK, N.A.
                                            as Trustee, Principal Paying Agent
                                            and Registrar


                                            By:   /s/ Carol Ng
                                                      Name:   Carol Ng
                                                      Title:     Vice President

<PAGE>
                                      B-18


                                  Exhibit 10.4


                        SOUTHERN PERU COPPER CORPORATION

                          SUPPLEMENTAL RETIREMENT PLAN

                 (As Amended and Restated as of April 30, 1998)


Section 1.  Effective Date.
The  effective  date  of  the  Supplemental  Retirement  Plan  (the  "Plan")  as
originally  adopted is December  12,  1990.  The  effective  date of the Plan as
hereby amended and restated is April 30, 1998.

Section 2.  Definitions.

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

     2.   Benefit  Commencement  Date.  The date  benefits  commence  under  the
          Pension Plan.

     3.   Board. The Board of Directors of Southern Peru Copper Corporation.

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

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

     6.   Company. Southern Peru Copper Corporation.

     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 for
          deemed investment of deferred benefits.

     11.  Pension Plan.  The Retirement  Benefit Plan for Salaried  Employees of
          Southern Peru Copper Corporation.

<PAGE>
                                      B-19


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.

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  following  the year of the
Eligible Employee's 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 date of termination.

<PAGE>
                                      B-20


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. 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 beneficiary, or if none, to his estate

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), 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, provided that no such amendment shall be given effect unless it is made
in writing at least twelve (12) months prior to the date Benefits under the Plan
are payable,  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 changed,  provided  that no such
change shall be given  effect  unless it is made in writing at least twelve (12)
months prior to the date benefits under the Plan are payable.

(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 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).

<PAGE>
                                      B-21


(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  Deferral  Amount not yet
payable  subject to a 6%  penalty.  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 amount  payable at least 12 months
subsequent  to such  amendment,  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).

Section 8.  Investment of Deferral Amounts.
 (a) Any Deferral Amount shall be deemed invested 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.  SPCC 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 SPCC had  followed  such
investment  designations.  All elections and amendments to elections 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 SPCC, 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.

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. 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 value of the lump sum distribution.
The designation  must be in writing,  and the Alternative  Date must be within 7
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.
<PAGE>
                                      B-22


(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.

Section 11.  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 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 and Board.
Any decision  made or action taken by the Company 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 or
the Board,  as the case may be, and shall be final,  conclusive and binding upon
all persons.

Section 14.  Assignment.
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.
<PAGE>
                                      B-23


Section 15.  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.

Section 16.  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 17.  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 this Amendment to
         its Supplemental Retirement Plan to be duly adopted and executed by its
         duly  authorized  officers and its corporate seal affixed hereto on the
         30th day of April, 1998.

                           Southern Peru Copper Corporation




                           By:  /s/ K. R. Morano
                                 Vice President

Attest:

/s/ C. D. Gonzalez 
Assistant Secretary
<PAGE>
                                      B-24




                                  Exhibit 10.7

                        SOUTHERN PERU COPPER CORPORATION

                         DEFERRED FEE PLAN FOR DIRECTORS

                 (As Amended and Restated as of April 30, 1998)


Section 1. Effective Date. The effective date of the Plan as originally  adopted
is March 1, 1996.  The effective date of the Plan as hereby amended and restated
is April 30, 1998.

Section 2.  Definitions.

1.   Board. The Board of Directors of Southern Peru Copper Corporation.

2.   Company. Southern Peru Copper Corporation.

3.   Deemed  Retirement  Date. May 1 of the calendar year in which a Participant
     reaches his Normal Retirement Date. 

4.   Deferral Amounts. All compensation deferred by a Director under the Plan.

5.   Director. Any individual serving as a member of the Board.

6.   Fair Market Value.  As to Company  stock,  Fair Market Value shall mean the
     average  of the high and low  prices of a single  share of  Company  common
     stock as reported by the Wall Street  Journal for New York Stock Exchange -
     Composite  Trading  as of the first  trading  day  coincident  with or next
     following the day as of which such value is to be determined.

7.   Investment Subaccount.  An account which earns interest pursuant to Section
     5.

8.   Normal  Retirement Date. For purposes of this Plan,  Normal Retirement Date
     for a Director  is the date of the  Annual  Meeting  of  Stockholders  next
     following the Director's 65th birthday.

9.   Participant.  Any eligible  Director or former  Director with a Participant
     Account balance.

10.  Participant  Account.  A bookkeeping  account  established in the financial
     records of the Company for each Participant.  Participant  accounts consist
     of an SPCC  Stock  Subaccount  and an  Investment  Subaccount.  Participant
     Accounts are credited with a  Participant's  Deferral  Amounts,  and deemed
     investment  earnings  or  losses  arising  therefrom  based on  Participant
     elections pursuant to Sections 4 and 5.

11.  SPCC Stock Subaccount A phantom SPCC stock equivalent account consisting of
     deemed whole shares of Southern  Peru Copper  Corporation  common stock and
     cash.


<PAGE>
                                      B-25


Section 3. Eligibility.  Any Non-employee Director is eligible to participate in
the Plan.

Section  4.  Participation.  To become a  Participant,  a  Director  must file a
written election to defer either 50 percent or 100 percent of cash  compensation
payable by reason of service on the Board.  An amount equal to the  compensation
deferred will be credited to the  Participant's  Participant  Account as soon as
practicable after the date such compensation is otherwise payable.

         An election  to  participate  must be received by the Company  prior to
January 1 of the calendar  year during which the election is to be effective and
shall be  irrevocable  for the entire year.  Notwithstanding  the  foregoing,  a
Director may elect to become a Participant  in the Plan for the calendar year in
which he first  becomes  eligible by filing a written  election  to  participate
within  30 days of  becoming  eligible.  The  election  will be  effective  on a
prospective basis and only as to remuneration not yet earned.

        An election shall remain in effect for  subsequent  years unless amended
or terminated in writing prior to January 1 of any subsequent  year. An election
can be revoked or  withdrawn at any time with respect to amounts to be earned in
years subsequent to the date of revocation or withdrawal.

Section  5.  Deemed  Investment   Provisions.   The  Company  will  establish  a
Participant Account for each Participant.  Each Participant Account will have an
SPCC Stock  Subaccount  and/or an  Investment  Subaccount.  A  Participant  must
allocate his Deferral  Amounts,  in increments of 25 percent,  to one or both of
the Subaccounts.

(a)      Deferral Amounts Allocated to SPCC Stock Subaccounts

     1)   A  Participant's  SPCC Stock  Subaccount  shall be deemed  invested in
          accordance with the Participant's  election in whole shares of Company
          common  stock which could be  purchased  at Fair Market Value with the
          Deferral Amounts credited to a Participant's  SPCC Stock Subaccount on
          the last business day of each calendar quarter.

     2)   The Stock  Subaccount also shall be credited with a bookkeeping  entry
          indicating  the  number of  additional  whole  shares  which  could be
          purchased  at Fair  Market  Value  with any  dividends  payable on the
          deemed  shares  held in the  SPCC  Stock  Subaccount  on the day  such
          dividends are payable to shareholders of Company common stock.

     3)   Any amounts that are  insufficient  to permit the crediting of a whole
          share of Company  common  stock  shall be  carried  as a cash  balance
          bookkeeping entry in such Stock  Subaccount.  On any date on which new
          funds are available for deemed investment in Company stock (either due
          to an additional  deferral or the  availability of deemed  dividends),
          the cash amount will be added to any such other funds, and the maximum
          number of whole  shares that could be  purchased  at Fair Market Value
          will be deemed invested. The remaining amount, if any, will be held as
          cash. No interest shall be credited on any such Stock  Subaccount cash
          balance.

     4)   The SPCC Stock  Subaccount  shall be  adjusted  to  reflect  any stock
          split,  stock  dividend,   recapitalization,   merger,  consolidation,
          reorganization or other similar change in the Company's common stock.
<PAGE>
                                      B-26


(b)      Deferral Amounts Allocated to Investment Subaccounts
         A  Participant's  Deferral  Amounts will be credited to his  Investment
         Subaccount except to the extent he has elected in writing to credit his
         Deferral Amounts to his Stock  Subaccount.  Each Investment  Subaccount
         will  be  credited  with  interest  from  the  date on  which  deferred
         compensation  would normally have been paid,  until payment,  at a rate
         equal to the  yield  rate for U.S.  Treasury  debt  obligations  with a
         10-year  maturity  effective for the last business day in each quarter,
         on the first day of each  calendar  quarter in which such  interest  is
         credited to the Participant's  Investment Subaccount.  Interest will be
         compounded quarterly.

Section  6.  Transfers.  No  election  may be made to  have  amounts  previously
credited  to a  Participant's  Investment  Subaccount  transferred  to his Stock
Subaccount.  Amounts previously credited to a Participant's Stock Subaccount may
not be transferred to his Investment Subaccount,  except on or after the earlier
in time of (a) one year  prior to  Normal  Retirement  Date,  or (b) the date of
termination.

Section 7.  Payment of Deferred Compensation.
(a)      Retirement at Normal Retirement Date
         A Participant  who retires at his Normal  Retirement  Date will receive
         the entire  value of his  Participant  Account in cash on January 15 of
         the year following the year of retirement.

(b)      Termination at Other than Normal Retirement Date 
         A Participant who terminates service as a Director at a date other than
         Normal Retirement Date will receive the entire value of his Participant
         Account in cash on the 15th day of the 13th month following the date of
         termination.

(c)      Further Deferral
         Notwithstanding (a) and (b) of this section, a Participant may elect to
         further  defer receipt of all or a portion of his  Participant  Account
         for a period of up to 10 years  from the  earlier in time of the Deemed
         Retirement Date or the date of termination. In order to defer a payment
         of benefits under the Plan, a Participant  must file a written election
         at least one year in  advance  of the date that a 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 further  elections  to defer the receipt of benefits
         under  the Plan  must  also be filed  at  least  one year  prior to the
         scheduled payment date.  Acceleration of any benefits deferred pursuant
         to this  paragraph  can only be made by filing a request for payment at
         least one year in advance of the requested accelerated payment date.
<PAGE>
                                      B-27


(d)      Financial Hardship of Participants
         At any time 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 Company 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.

(e)      Other Withdrawals
         Absent a Hardship Event or adequate  prior notice (in  accordance  with
         paragraph  (c)  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.

Section 8.  Designation of Beneficiary.
(a)    A Participant may designate a beneficiary by giving written notice to the
       Company.  If no beneficiary is designated,  the  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.

 (b)    In the event of a Participant's  death before he has received all of the
        benefits  to  which  he  is  entitled   hereunder,   the  value  of  the
        Participant's  Participant  Account  shall  be  paid  to the  estate  or
        designated  beneficiary of the deceased Participant in one cash lump sum
        as soon as  practicable  after the first January 15 or July 15 following
        such date of death,  unless the  Participant  has  elected  to  continue
        without  change the schedule for payment of benefits,  in which case the
        beneficiary shall have the right to transfer amounts previously credited
        to a Participant's Stock Subaccount to his Investment Subaccount.

(c)     If a distribution  is to be made to a beneficiary  and such  beneficiary
        dies  before  such  distribution  has  been  made,  the  amount  of  the
        distribution  will be paid to the estate of the  beneficiary in one lump
        sum.

Section 9.  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.
<PAGE>
                                      B-28


Section  10.  Assignability.  No right to receive  payments  hereunder  shall be
transferable or assignable by a Participant or beneficiary.

Section 11.  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 12.  Discretion of Company and Board.  Any decision made or action taken
by the  Company  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 or the Board, as the case may be,
and shall be final, conclusive and binding upon all persons.

Section  13.  Amendment.  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.

Section 14.  Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York.
<PAGE>
                                      B-29


         IN WITNESS  WHEREOF,  the  Company  has caused  this  Amendment  to its
Deferred  Fee Plan for  Directors  to be duly  adopted and  executed by its duly
authorized  officers and its  corporate  seal affixed  hereto on the 30th day of
April, 1998.

                                          Southern Peru Copper Corporation



                                          By:   /s/ K. R. Morano  
                                                 Vice President

Attest:


 /s/ C. D. Gonzalez
Assistant Secretary


<PAGE>
                                      B-30


                                  Exhibit 10.9

                        SOUTHERN PERU COPPER CORPORATION

                           COMPENSATION DEFERRAL PLAN

                 (As Amended and Restated as of April 30, 1998)


Section 1 - Effective Date.
The  effective  date of the Plan as originally  adopted is January 1, 1998.  The
effective date of the Plan as hereby amended and restated is April 30, 1998.

Section 2 - Definitions.

     1)   Board. The Board of Directors of Southern Peru Copper Corporation.

     2)   Code. The Internal Revenue Code of 1986, as amended.

     3)   Committee.  The Compensation  Committee of the Board or any individual
          or individuals  to whom authority has been delegated  hereunder by the
          Compensation Committee.

     4)   Company.  Southern  Peru  Copper  Corporation  and any  subsidiary  of
          Southern Peru Copper Corporation that has adopted the Plan. 

     5)   Deferral Amounts. A Participant's  Salary Deferral Amounts,  Incentive
          Compensation Deferral Amounts,  Employer Provided Benefit, and Special
          Incentive Compensation Awards.

     6)   Director. Any individual serving as a member of the Board.

     7)   Incentive  Compensation Plan. The Southern Peru Copper Corp. Incentive
          Plan  for  Select  Management  Payroll  Employees,  and  the  Logistic
          Services Incorporated Incentive Plan.

     8)   Participant.  An Eligible Employee, as defined in Section 3, who has a
          valid election in effect under the Plan. ------------

     9)   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.

     10)  Retirement.  Retirement under the Retirement Benefit Plan for Salaried
          Employees of Southern Peru Copper Corporation.

     11)  Savings  Plan.  Savings Plan of Southern Peru Copper  Corporation  and
          Participating Subsidiaries.
<PAGE>
                                      B-31


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 ("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".

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).
<PAGE>
                                      B-32


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).

          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.

<PAGE>
                                      B-33


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 SPCC 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.

<PAGE>
                                      B-34


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 from the Company.  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). 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's  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
     from the  Company.  To defer a  payment  of  benefits  under  the  Plan,  a
     Participant  must file a written  election  at least one year 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 further elections to defer the
     receipt  of  benefits  under  the Plan must also be filed at least one year
     prior to the scheduled payment date.  Acceleration of any benefits deferred
     pursuant to this  paragraph  can be made by filing a request for payment at
     least one year in advance of the requested accelerated payment date.

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.

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.


<PAGE>
                                      B-35


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.

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.
<PAGE>
                                      B-36


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 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  Southern  Peru Copper
Corporation  Compensation  Deferral  Plan to be duly adopted and executed by its
duly  authorized  officers and its corporate  seal affixed hereon as of the 30th
day of April, 1998.
 
                                 Southern Peru Copper Corporation



                                 By:  /s/ K. R. Morano
                                       Vice President

Attest:


/s/ C. D. Gonzalez
Assistant Secretary
<PAGE>
                                      B-37


                                  Exhibit 10.12

                       ASSIGNMENT AND ASSUMPTION AGREEMENT

         Assignment  and  Assumption  Agreement  dated as of December  30, 1998,
between Southern Peru Copper Corporation,  a Delaware corporation ("SPCC"),  and
Southern Peru Limited (the "Company").

                                    RECITALS

                  WHEREAS,   this  Assignment  and  Assumption  Agreement  (this
"Agreement")  relates  to  the  Credit  and  Guarantee  Agreement  (the  "Credit
Agreement")  dated as of March 31, 1997 among  SPCC,  the  Company,  the several
banks and other financial  institutions  from time to time parties to the Credit
Agreement  (collectively,  the  "Lenders",  individually,  a  "Lender"),  Morgan
Guaranty Trust Company of New York, as Administrative  Agent for the Lenders (in
such  capacity,  the "  Administrative  Agent"),  The Chase  Manhattan  Bank, as
Documentation  Agent for the  Lenders  (in such  capacity,  the "  Documentation
Agent"), Citicorp Securities,  Inc., as Syndication Agent (in such capacity, the
"Syndication  Agent"),  and Deutsche  Bank AG, New York Branch,  as Security and
Collateral Agent for the Lenders (in such capacity, the "Collateral Agent");

                  WHEREAS,  pursuant to Section 8.3 of the Credit Agreement, the
Company may merge with and into SPCC in accordance with the terms and subject to
the conditions set forth therein (including,  without limitation,  the fact that
this Agreement shall be satisfactory  to the Required  Lenders,  as evidenced by
their acknowledgment and approval hereof); and

                  WHEREAS,  the Company is to be merged  with and into SPCC,  as
expressly contemplated by Section 8.3 of the Credit Agreement (the "Merger");

                  NOW,  THEREFORE,  in  consideration  of the  foregoing and the
mutual agreements contained herein, the parties hereto agree as follows:


                             SECTION 1. DEFINITIONS

                  1.1 Defined Terms. All capitalized terms not otherwise defined
herein shall have the respective meanings set forth in the Credit Agreement.

                      SECTION 2. ASSIGNMENT AND ASSUMPTION

                  2.1 Assignment and Assumption.  (a) Upon the  effectiveness of
the Merger (the "Effective Time"), the Company hereby assigns to SPCC all of its
rights and obligations  under the Credit  Agreement and the other Loan Documents
and SPCC hereby accepts such  assignment and assumes all of the  obligations and
acquires all of the rights of the Company thereunder.

                  (b) From and after the  Effective  Time,  (i) SPCC  shall have
succeeded the Company as the "Borrower" under the Credit Agreement and the other
Loan Documents, and all references to the "Borrower" in the Credit Agreement and
the other Loan Documents shall refer to SPCC and not to the Company, and (ii) to
the  guarantee by the "Parent"  contained in Section 10 of the Credit  Agreement
shall be without further force or effect.
<PAGE>
                                      B-38


                            SECTION 3. MISCELLANEOUS

                  3.1 Counterparts. This Agreement may be executed in any number
of counterparts (including by facsimile transmission), and all such counterparts
shall together constitute but one and the same instrument.

                  3.2  GOVERNING   LAW.  THIS   AGREEMENT  AND  THE  RIGHTS  AND
OBLIGATIONS  OF THE PARTIES  HEREUNDER  SHALL BE GOVERNED BY, AND  CONSTRUED AND
INTERPRETED N ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed as of the day and year first above written.

                                     SOUTHERN PERU LIMITED


                                     By:   /s/ K.R. Morano 
                                               Name:    K. R. Morano
                                               Title:   Vice President


                                     SOUTHERN PERU COPPER CORPORATION


                                     By:   /s/ K.R. Morano 
                                               Name:    K. R. Morano
                                               Title:   Vice President


<PAGE>
                                      B-39


                                  Exhibit 10.13

          Consulting Agreement Between the Company and Mr. C. G. Preble
                             (dated March 18, 1999)


Charles B. Smith
Executive Vice President &
Chief Operating Officer



                                                                  March 18, 1999


Mr. Charles G. Preble
President and Chief Executive Officer
Southern Peru Copper Corporation
180 Maiden Lane
New York, NY 10038


Dear Chuck:

In accordance with the Company's  retirement  policy for its officers,  you will
retire as President and CEO effective April 30, 1999. The purpose of this letter
is to set  forth  the  terms  and  conditions  of our  relationship  after  your
retirement. Please signify your agreement by signing this letter where indicated
below and returning it to me. The enclosed copy is for your records.

1.   Consulting Arrangement:  To ensure a smooth transition in the leadership of
     the Company,  you will,  during the one-year  period  commencing  with your
     retirement,  provide consulting  services to the Company from time to time,
     as may  reasonably  be  requested  by the  then  President  and  CEO or his
     designee,  with respect to matters of governmental and public relations, by
     the CEO.

     In consideration  of these services,  the Company will pay you a consulting
     fee of $2,000  per day or any  portion of a day,  with a minimum  number of
     consulting days set at 25, for the one-year period  beginning the first day
     of the month  following  your  retirement.  You will also be reimbursed for
     reasonable  out-of-pocket  expenses  incurred  by you with  respect to such
     services in accordance  with the Company's  expense  reimbursement  policy.
     Fees and expenses  will be paid  quarterly  after you submit a statement to
     the  Company  setting  forth the date(s) on which you  provided  consulting
     services to the Company during the previous quarter,  and your reimbursable
     expenses for the previous month.

2.   Office Support: The Company will provide you, through October 1999, with an
     office (with  furnishings  and other  appointments)  of a type and size and
     secretarial  assistance of a type and extent provided by the Company to its
     vice presidents generally.  This office will be at the Company's offices in
     Lima,  Peru. A guest office and  associated  secretarial  services  will be
     provided after October 1999 for the duration of this contract.
<PAGE>
                                      B-40


3.   Security and Transportation: An automobile and driver will be provided when
     you are in Lima, Peru.

4.   Visit to Operating Sites: Standard guest accommodations  including housing,
     food, and transportation from and to Lima will be provided when you visit a
     SPCC operating site.

5.   Confidentiality:  During the course of providing consulting services to the
     Company,  you will have access to confidential  information relating to the
     Company and its affiliates. You agree to treat all confidential information
     as proprietary.

6.   Miscellaneous: This agreement is personal to you and may not be assigned by
     you other than by the laws of descent and  distribution.  This agreement is
     binding for the Company and its successors and assignees.

This agreement supersedes any previous  understandings or agreement,  written or
otherwise,  regarding  the  subject  matter  hereof and may only be amended by a
written instrument signed by the Company and you.

The terms of this agreement will be construed according to the laws of the State
of New York without regard to the conflict of laws provision thereof.


                                                     Regards,



                                                    /s/Charles B. Smith
                                                     Charles B. Smith








Agreed to:

Name:                       /s/ Charles G. Preble   
                                Charles G. Preble

Date:                       March 18, 1999                              


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