FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Act of 1934 For the month of March 2004 Mexico Mining, S.A. de C.V. (Translation of Registrant's name into English) Minera Mexico, S.A. DE C.V. Baja California 200 Col. Roma Sur 06760 Mexico, D.F. (Address of principal executive offices) Indicate by check mark whether the registrant files of will file annual reports under cover of Form 20-F of Form 40-F Form 20-F X FORM 40-F Indicate by check mark whether the registrant by furnish the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g-32(b) under the Securities Exchange Act of 1934 Yes: No X If "yes" is marked, indicate the file number assigned to the registrant in connection with Rule 12g3-2(b): SIGNATURE PAGE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. MINERA MEXICO, S.A. DE C.V. Date: Mayo 9, 2003 By: Name: Hector Nieto Castilla Title: Managing Director, Finance MINERA MEXICO, S.A. DE C.V. AND SUBSIDIARIES (Subsidiary of Americas Mining Corporation) CONSOLIDATED FINANCIAL STATEMENTS MARCH 31, 2004 AND 2003 The Minera Mexico consolidated financial statements are prepared in accordance with generally accepted accounting principles in United States of America. MINERA MEXICO, S.A. DE C.V. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEET AS OF MARCH 31, 2004 AND 2003 STATED IN THOUSANDS OF U.S. DOLLARS A S S E T S 2004 2003 CURRENT: Cash and marketable securities $ 127,272 $ 85,262 Notes and accounts receivable Trade, 99,228 60,726 Affiliated companies 48,943 26,942 Recoverable taxes 30,934 48,754 Other 15,518 25,734 ---------- ---------- 194,622 162,156 Inventories of primary and secondary metals and byproducts 132,637 129,425 Materials and supplies, 100,293 104,070 Prepaid expenses and other 5,956 5,575 ---------- ---------- Total current assets 560,779 486,488 GRUPO MEXICO 6,906 6,906 DEFERRED CHARGES AND OTHER 7,861 10,309 Property, plant and equipment 3,466,211 3,448,435 Accumulated Depreciation and Amortization (1,367,143) (1,306,653) ---------- ---------- PROPERTY AND EQUIPMENT, NET 2,099,068 2,141,782 INVESTMENTS IN ASSOCIATED COMPANIES AND OTHERS 3,548 2,952 GOODWILL 17,041 13,491 ---------- ---------- $ 2,695,203 $ 2,661,928 ========== ========== The accompanying eight notes are an integral part of these consolidated financial statements. LIABILITIES AND STOCKHOLDERS'EQUITY 2004 2003 CURRENT LIABILITIES: Notes and interest payable $ 59,454 $ 194,010 Dividend payable 11,634 13,934 Accounts payable and accrued liabilities 135,624 240,313 Affiliated companies 58,258 83,316 Income tax and asset tax 2,660 20,695 Employee profit sharing 428 940 Deferred taxes 91,260 93,568 ---------- ---------- Total current liabilities 359,317 646,776 LONG-TERM DEBT 1,258,403 1,133,273 DEFERRED TAXES 115,010 221,806 LONG-TERM AFFILIATED COMPANIES 59,374 59,374 VOLUNTARY RETIREMENT AND SENIORITY PREMIUMS RESERVE 25,036 32,314 ---------- ---------- Total liabilities 1,817,141 2,093,543 MINORITY INTEREST 77,758 68,793 STOCKHOLDERS' EQUITY: Capital stock 431,536 423,842 Treasury shares (71,617) (53,738) Additional paid-in capital by merger 5,369 - Additional paid-in capital 104,553 727 Other comprensive income (14,713) (23,954) Retained earnings 248,908 166,810 Profit and (loss) 96,268 (14,095) ---------- ---------- Total stockholders' equity 800,305 499,591 ---------- ---------- $ 2,695,203 $ 2,661,928 ========== ========== The accompanying eight notes are an integral part of these consolidated financial statements. MINERA MEXICO, S.A. DE C.V. AND SUBSIDIARIES CONSOLIDATED STATEMENT OF INCOME FOR THE PERIODS ENDED MARCH 31, 2004 and 2003 STATED IN THOUSANDS OF U.S. DOLLARS 2004 % 2003 % NET SALES 328,458 100 147,293 100 COST OF SALES 152,063 46 176,271 73 ---------- -------- 176,395 54 40,022 27 OPERATING EXPENSES: Administrative expenses 9,543 3 7,862 5 Depreciation and amortization 28,539 9 29,109 20 ---------- -------- OPERATING INCOME (LOSS) 138,313 42 3,050 2 ---------- -------- COST OF FINANCING: Interest expense, net 26,027 8 24,640 17 Exchange (gain) loss, net 3,262 1 (9,082) (6) ---------- -------- 29,289 9 15,558 11 OTHER (EXPENSES) INCOME, net 352 - 552 - Income (Loss) before provisions 109,376 33 (11,956) (8) PROVISIONS FOR: Income taxes 216 - 488 - Deferred tax 1,531 - (4,619) (3) Asset tax 8,339 3 5,737 4 ---------- -------- 10,086 3 1,605 1 Consolidated net income (loss) ---------- -------- for the periods 99,289 30 (13,561) (9) ========== ======== ALLOCATION OF CONSOLIDATED NET INCOME (LOSS): Minority interest 3,021 - 534 1 Majority interest 96,268 29 (14,095) (10) ---------- -------- 99,289 30 (13,561) (9) ========== ======== Average realized copper price(cts. Pound) 124.00 78.00 Average realized zinc price (cts. Pound) 51.00 39.00 Exports 57.69% 25.83% Ratio of EBITDA to interest expense 5.50 1.47 Inflation rate 4.23% 5.64% Devaluation rate (average) 1.79% 18.46% Earnings per share 0.13 (0.02) Number of shares 769,604,346 659,463,779 The accompanying eight notes are an integral part of these consolidated financial statements. MINERA MEXICO, S.A. DE C.V. AND SUBSIDIARIES (Subsidiary of Americas Mining Corporation) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS FOR THE QUARTERS ENDED MARCH 31, 2004 AND 2003 (In thousands of U..S. dollars) NOTE 1- DESCRIPTION OF BUSINESS AND SIGNIFICANT EVENTS: The operating companies that comprise Minera Mexico, S.A. de C.V. ("MM") and Subsidiaries (collectively, "the Company") are in the metallurgical mining industry. They engage in the exploration, mining and processing of metallic and nonmetallic minerals as well as the mining of coal and the refinement of copper, gold and silver. The Company is a 98.91% owned indirect subsidiary of Grupo Mexico, S.A. de C.V. ("GMEXICO") through its holding company Americas Mining Corporation (AMC). At General Ordinary Stockholders' Meeting held on May, 28, 2003, the stock- holders agreed to merge Grupo Minero Mexico, S.A. de C.V. ("GMM") a wholly - owned subsidiary into MM. The merger became effective as from May 31, 2003, as a result of which, the MM acquired all the assets, liabilities and capital of the merged company, which ceased to exist as a legal entity. This operation generated a Ps50,847 decrease in stockholders' equity. NOTE 2 BASIS OF PRESENTATION: a. Consolidation of financial statements - The consolidated financial statements as of March 31, 2004 and 2003 include the financial statements of GMM (a 98.91% owned subsidiary of Minera Mexico, S.A. de C.V.) and those of its subsidiaries that consolidate the financial statements of their subsidiaries mentioned as follows: Ownership percentage As of March Company 31, 2004 Mexicana de Cobre, S.A. de C.V. (Mexcobre) 96.43% Mexicana de Cananea, S.A. de C.V. (Mexcananea) 98.49% Industrial Minera Mexico, S.A. de C.V. (Immsa) 100% Minerales Metalicos del Norte, S.A. (Mimenosa) 100% Minera Mexico Internacional, Inc. (MMI) 100% Others companies 100% The consolidated financial statements include the accounts of the Company and its subsidiaries, all under the same management. All significant intercompany balances and transactions have been eliminated in consolidation. MM is not a corporation separate from the Grupo Mexico, S.A. de C.V. (GMEX). It is, however, an entity establishment, registered pursuant to Mexican Law, through which the Company holds assets, incurs liabilities and conducts ope- rations in Mexico. MM comprises substantially all the assets and liabilities of the Company associated with its mining operations in Mexico. Foreign exchange - The Company's functional currency is the U.S. dollar. MM maintains its books in Mexican pesos. Foreign currency assets and liabilities are remeasured into U.S. dollars at current exchange rates except for inven- tory, property plant and equipment and other assets which are remeasured at historical exchange rates. Revenues and expenses are generally translated at average exchange rates in effect during the period, except for those expenses related to balance sheet amounts that are remeasured at historical exchange rates. Gains and losses from foreign currency remeasurement are included in net earnings. b. Reclassifications - Certain amounts in the financial statements as of and for the quarter ended March 31, 2004 and 2003 have been reclassified in order to conform to the presentation of the consolidated financial statements as of and for the quarter ended March 31, 2004. NOTE 3 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: a. Cash and cash equivalents - Cash and temporary investments are primarily short-term investment fund, varia- ble income securities and bank deposits with original maturities of three months or less, and are valued at market. b. Impairment of long-lived assets - The Company, periodically reviews the recoverable value of its long-lived tangible and intangible assets, including the goodwill, based on estimated gross future cash flow from its cash-generating units. If the book value of the assets exceeds the discounted value it recognizes impairment. The procedure and criteria used by the Company are in line with the provisions of Statement of Financial Accounting Standards (SFAS) No. 144 "Impairment of the Value of Long-Lived Assets and their Disposal". Management of the Company considers that as result of the study made at December 31, 2003 no impairment losses need to be recognized. c. Deferred charges - - - Stripping costs- Stripping costs are costs associated with the removal of waste materials after production has commenced. Over the life of the mine, stripping costs are deferred in periods when the actual ratio of waste mate- rials to mineral ore extracted is above the life-of-mine stripping ratio, which represents the Company's estimate of the total amount of waste to be incurred divided by the estimated total proven and probable reserves. In periods when the actual mine stripping ratio is below the life-of-mine stripping ratio, the Company reduces the net capitalized mine stripping asset proportionally with a charge to amortization expense. In addition, deferred mine stripping costs are amortized using the units of production method based on proven and probable ore reserves. Copper resources contained in piles of leachable materials that have been extracted from the mines are not included in the determination of units of production amortization. The Company's policy results in the smoothing of stripping costs over the life of the mine and, in the view of the Company, better facilitates the matching of mine production costs over the life of the mine with the mine's revenues. - - Leaching material - Mexcananea capitalizes the cost of materials with low copper content, extracted during the mining process ("leaching material"), which are accumulated in areas known as leach dumps. The amortization of the capitalized costs is determined based on the individual depletion of the leach dumps, which is approximately from 5 to 8 years. - - Mine development costs- Exploration costs incurred before operation of a site begins are expensed as incurred, except for expenditures on specific properties where proven and probable mineral resources have been confirmed, in which case the expenditures are capitalized as mine development cost. Capitalized mine development cost are amortized on a straight-line basis over the estimated use- ful lives of the corresponding proven metal reserves. - - Other deferred expenses- Other deferred expenses comprise mainly licenses, expenses related to the development of software for internal use, and debt restructuring expenses, which are capitalized and amortized on a straight-line basis over an average period between three and ten years, beginning in 1999 and 2000. d. Investment in shares of associated and other unconsolidated companies- Accounted for using the equity method on the based on the financial statements of associated and other unconsolidated companies and restated on the same basis as of the Company. e. Goodwill - Beginning in 1998 the woodwill from the acquisition of Mexcananea is being amortized over 10 years, the terms over which the benefits from this invest- ment is expected to be realized. f. Employee benefit obligations - The Company records the liabilities from seniority premiums, pensions and reti- rement payments similar to pensions as accrued, using actuarial calculations based on the projected unit credit method and real interest rates. Accordin- gly, the liability is being accrued which at present value will cover the obli- gation for benefits projected to the estimated retirement date of the Company's employees. Indemnity payments are charged to results in the period in which they become payable. Mexcananea provides medical and hospital services to all active employees and retired unionized employees and the members of their families through a subsidiary (Hospital del Ronquillo, S. de R.L. de C.V.) and in accordance with needs to be US GAAP - FAS 112-, Mexcananea records the liability for postre- tirement medical benefits based on actuarial calculations under the projected unit credit method and using real interest rates. When there is a significant reduction in personnel due to the restructuring of the labor force or the closing of a plant, the corresponding indemnity costs, net of the corresponding reduction in the projected benefit obligation and the related items to be amortized, are charged to results. Accordingly, the Company is accruing that liability, which at present value will cover the obligation from benefits projected to the estimated retirement date of the Company's employees. Indemnity payments are charged to results in the period in which they are made. g. Income tax, asset tax and employee statutory profit-sharing - Income tax and employee statutory profit-sharing are recorded in the results of the year in which they are incurred. Deferred income tax assets and liabilities are recognized for temporary differences resulting from comparing the book and tax values of assets and liabilities plus any future benefits from tax loss carryforwards. Deferred income tax assets are reduced by any benefits that, in the opinion of management, are not likely of being realized. Deferred emplo- yees' statutory profit-sharing is derived from temporary differences between the accounting income and income for employees' statutory profit-sharing pur- poses. Asset tax paid that is expected to be recoverable is recorded as an advance payment of income tax and is presented in the balance sheet together with defe- rred income tax. h. Foreign currency balances and transactions - Monetary assets and liabilities denominated in foreign currency are translated into US dollars at the applicable exchange rate in effect at the balance sheet date Foreign currency transactions are recorded at the applicable exchange rate in effect at the transaction date. Exchange fluctuations are recorded as a component of net comprehensive financing income (cost) in the consolidated statements of operations. i. Revenue recognition - Most of the Company's copper is sold as refined metal under annual contracts or on a spot sale basis. The balance of the Company's copper production is sold in the form of concentrate under contracts of one to three years duration. Silver and gold are sold under monthly contracts or in spot sales. Revenues are recorded primarily in the month the product is shipped to customers based on prices established in sales contracts. j. Hedging activities - Derivate instruments may be used to manage exposure to market risk from changes in comoodity prices (metal and energy products), interest rates or the value of the Company's assets and liabilities. To qualify for hedge accounting deriva- tive instruments must be designated as a hedge in writing at acquisition or inception of the contract. In addition, such instruments must be periodically evaluated and deemed to be "highly effective" at reducing the risk associated with the exposure being hedged. Any ineffectiveness of the hedge is reported in current earnings. Derivative financial instruments that fail to qualify for hedge accounting are carried at fair value and all unrealized gains or losses are recognized in earnings. The Company's derivative transactions during 2004 and 2003 were limited in volume and restricted to risk management. The Company does not maintain or issue financial instruments for speculative purposes. Decisions with respect to each transaction and to the overall hedging policies are made by an Execu- tive Risk Committee. The objective of the committee, which is currently com- prised of the Chairman of the Board, the Chief Financial Officer and the Assistant Director of Risk Management, is to ensure that the risks and benefits have been appropriately assessed. The Company enters into swap and option transactions or a combination of both to reduce or eliminate the risk of purchase or sales price fluctuations. For instance, for the purpose of reducing the risk of fluctuations in metal prices, 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 sales. Options and futures contracts are carried at fair value with unrealized gains or losses recognized in current earnings. Realized gains or losses from the sale or exercise of options and from the settlement of futures contracts are recognized in the period in which the underlying hedged production is sold. k. Swap agreements - Swap agreements limit the effect of changes in the price of the underlying transactions. The Company's swap agreements generally do not meet hedge accoun- ting criteria and are carried at fair value with unrealized gains or losses recognized in current earnings. The Company enters into interest rate swap agreements to limit the effect of increases in interest rates on floating rate debt. The current differential to be paid or received as interest rates change under any such agreement is recorded in interest expense. Diesel fuel swap agreements are entered into to limit the effect of increases in the price of diesel fuel. The differential to be paid or received as diesel fuel prices change is recorded as a component of cost of sales. Foreign currency swap agreements are entered into to limit the effect of exchange rate changes on future cash flow obligations denominated in foreign currencies. The difference to be paid or received as exchange rates change is included in the cost of the input for which it was obtained. l. Estimates The accounting policies followed by the Company require that management make certain estimates and use certain assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. Although these estimates are based on management's best knowledge of current circums- tances, actual results may differ. m. Impact of New Accounting Standards: Effective January 1, 2003, the Company adopted Statement of Financial Accoun- ting Standards (SFAS) No. 143, "Accounting for Asset Retirement Obligations". This statement requires the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred. The liability is measured at fair value and is adjusted to its present value in subsequent periods as accretion expense is recorded. The corresponding asset retirement costs are capitalized as part of the carrying value of the related long-lived assets and depreciated over the asset's useful life. The adoption of SFAS No. 143 did not have a material effect on the Company's financial statements. Effective January 1, 2003, the Company implemented SFAS No. 145, "Rescission of SFAS Nos. 4,44 and 64, Amendment of SFAS 13, and Technical Corrections", under which gains and losses from extinguishment of debt are classified as extraor- dinary items only if they meet criteria outlined in Accounting Principles Bulletin No. 30. Effective January 1, 2003, the Company adopted SFAS No. 146, "Accounting for Costs Associated with Exit or Disposal Activities" (SFAS 146), which addresses financial accounting and reporting for costs associated with exit or disposal activities and nullifies Emerging Issues Task Force (EITF) Issue No. 94-3, "Liability Recognition for Certain Employees Termination Benefits and Other Costs to Exit an Activity (including Certain Costs Incurred in a Restructu- ring)". The adoption of SFAS No. 146 did not have a material effect on the Company's financial statements. Effective January 1, 2003, the Company adopted SFAS Interpretation No. 45, "Guarantor's Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of Indebtedness of Others" ("FIN 45"). FIN 45 requires that upon issuance of a guarantee, the Company must disclose and may be required to recognize a liability for the fair value of the obligation it assumes under that guarantee. The initial recognition and measurement requirement of FIN 45 is effective for guarantees issued or modified after December 31, 2002. The adoption of FIN 45 did not have a material effect on the Company's financial statement. Effective January 1, 2003, the Company adopted SFAS No. 148, "Accounting for Stock-Based Compensation - Transition and Disclosure" (SFAS 148), SFAS No. 148 des not alter the provisions of SFAS No. 123, nor does it require stock-based compensation to be measured under the fair-value approach under SFAS No. 123. The Company uses the disclosure only provisions of SFAS No. 123. The adoption of SFAS No. 148 did not have a material effect on the Company's financial statements. Effective February 1, 2003, the Company adopted FASB Interpretation No. 46, "Consolidation of Variable Interest Entities" ("FIN 46"). FIN 46 addresses consolidation by business enterprises of variable interest entities. Under this interpretation, certain entities known as Variable Interest Entities ("VIEs") must be consolidated by the primary beneficiary of the entity. The primary beneficiary is generally defined as having the majority of the risks and re- wards arising from the VIE. For VIEs in which a significant (but not majority) variable interest is held, certain disclosures are required. The Company has not entered into any arrangements or made any investments which qualify as a VIE in the period from January 31, 2003 to March 31, 2004 nor is it party to any such arrangements. The adoption of FIN 46 did not have a material impact on our consolidated financial position, results of operations or cash flows. In April 2003, the FASB issued SFAS No. 149, "Amendment of Statement 133 on Derivative Instruments and Hedging Activities". This Statement amends and clarifies financial accounting and reporting for derivative instruments, inclu- ding certain derivative instruments embedded in other contracts (collectively referred to as derivatives) and for hedging activities under FASB Statement No. 133, Accounting for Derivative Instruments and Hedging Activities. The Company adopted the provisions of SFAS No. 149 on July 1, 2003, which did not have a material effect on the Company's financial statements. In May 2003, the FASB issued SFAS No. 150, "Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity". This State-ment establishes standards of how an issuer classifies and measures certain financial instruments with characteristics of both liabilities and equity. It requires that an issuer classify a financial instrument that is within its scope as a liability (or an asset in some circumstances). This Statement is effective for financial instruments entered into or modified after May 31, 2003, and otherwise is effective July 1, 2003. The Company adopted the provisions of SFAS No. 150 on July 1, 2003, which did not have a material effect on the Company's financial statements. The Company has no financial instruments during the period June 1 through June 30, 2003, which would have required adoption of this SFAS prior to July 1, 2003. NOTE 4 STOCKHOLDERS' EQUITY: At March 31, 2004, the Company's capital stock amounted to $431,536 represented by 769,604,346 shares, of which 630,000,000 Class I correspond to the fixed portion and 139,604,346 Class II shares to the variable portion. Dividends paid are not subject to income tax if paid from the Net Tax Profit Account (CUFIN). Any excess over this account is subject to a tax equivalent to 49.25% and 47.06% depending on whether paid in 2004 and 2005, respectively. The tax is payable by the company and may be credited against its income tax in the same year or the following two years. Dividends paid are not subject to tax withholding. In the event of a capital reduction, any excess of stock- holders' equity over capital contributions, the latter restated in accordance with the provisions of the Income Tax Law, is accorded the same tax treatment as dividends. NOTE 5 - INCOME TAXES, ASSET TAX AND EMPLOYEE STATUTORY PROFIT SHARING: In accordance with Mexican tax law, the Company is subject to asset tax and income tax, which take into consideration the taxable and deductible effects of inflation. Through December 31, 2001, the Mexican income tax rate was 35% with the obligation to pay 30% currently and the option of deferring the rema- inning 5% until profits are distributed. The new tax law enacted January 1, 2002, eliminated the option to defer the portion of the income tax payment and reduces the 35% tax rate by one percentage point each year until it reaches 32% in 2005. The deduction for employee statutory profit-sharing and the obli- gation to withhold taxes on dividends paid to individuals and foreign residents was also eliminated. Asset tax is calculated by applying 1.8% to the Company's asset position, as defined in the law, and is payable only to the extent that it exceeds the in- come tax payable for the same period, If in any year asset tax exceeds the income tax payable, the asset tax payment for such excess may be reduced by the amount by which the income tax exceeded asset tax in the three preceding years and any required payment of asset tax is creditable against the excess of the income tax over asset tax of the following ten years. Taxable income- The principal items which affect the determination of taxable income of Mexican companies are the differences between purchases and cost of sales, recognition of the effects of inflation on depreciation and on monetary assets and liabilities through the inflationary component, which differ for book and tax purposes. MM and its subsidiaries obtained authorization to file a consolidated income and asset tax return. The resulting benefit is recognized in MM. The Company calculates employee statutory profit-sharing using the guidelines established in the Income Tax Law. NOTE 6 - FINANCIAL INSTRUMENTS: a. Fair value of financial instruments - For certain of the Company's financial instruments, including cash, accounts receivable, accounts payable and accrued liabilities, the carrying amounts approximate fair value due to their short maturities. b. Concentration of risk - Financial instruments, which potentially subject the Company to a concentration of credit risk, consist primarily of cash and cash equivalents, short-term investments and trade accounts receivable. The Company invests or maintains available cash with various high quality banks principally in Mexico and US 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. In the normal course of its activities, the Company grants credit to its customers. Although the accounts receivable resulting from these transactions are not guaranteed, the Company has not had any significant portfolio recovery problems. NOTE 7 - CONTINGENCIES AND COMMITMENTS: The Company is involved in various legal proceedings derived from its normal operations. However, according to management, a reasonable amount has been reserved to cover any individual or collective court decisions in connection with these proceedings. NOTE 8 - RELEVANT EVENT: On February 3, 2004, GMEXICO, the largest stockholder of Southern Peru Copper Corporation (SPCC), presented a proposal regarding the possible sale to SPCC of all the shares of GMEXICO's subsidiary, MM, representing 99% of MM's outstanding shares, in return for the issuance of additional shares of SPCC. MM holds substantially all of GMEXICO's Mexican mining assets. SPCC has formed a special committee of Disinterested Directors, comprising of member of its Board, to evaluate whether the proposal is in the best interests of the stockholders of the Company. GMEXICO notes that there can be no assu- rance as to whether agreement can be reached with regard to this transaction. If consummated, the transaction would result in the Company having a single class of common stock, listed on the New York and Lima stock exchanges. OPERATING RESULTS MINERA MEXICO, S.A. DE C.V. S A L E S ACUMULATED AS OF MARCH 31st, 2004 AND 2003 C O N C E P T REAL REAL VARIATION % 2004 2003 V O L U M E GOLD (Kg) 231 200 31 16 SILVER (Kg) 125,569 111,017 14,552 13 LEAD (TONS) 4,756 5,801 (1,046) (18) COPER (TONS) 75,501 53,792 21,709 40 ZINC (TONS) 27,210 22,638 4,572 20 ZINC CONTAINED IN CONCENTRATES (TONS) 2,387 4,024 (1,637) (41) COPPER CONTAINED IN CONCENTRATES (TONS) 13,434 (29) 13,463 100 THOUSAND OF U.S. DOLLARS GOLD 1% 2,927 2,240 687 31 SILVER 8% 25,580 16,525 9,055 55 LEAD 1% 3,663 2,619 1,044 40 COPPER 63% 206,887 92,594 114,293 123 ZINC 9% 30,487 18,942 11,545 61 ZINC CONTAINED IN CONCENTRATES 1% 1,818 2,126 (308) (14) COPPER CONAINED IN CONCENTRATES 10% 33,593 (26) 33,619 100 OTHERS 7% 23,503 12,273 11,230 92 --------- --------- -------- --- T O T A L 100% 328,458 147,293 181,165 123 % OF CONTRIBUTION PER COMPANY VARIATION IN % OF PARTICIPATION 2004/2003 TOTAL SALES 2004 DOLLARS DOLLARS ------- ------- MEXCOBRE 145% 58% I.M.M.S.A. 63% 22% MEXCANANEA 161% 20% MINERA MEXICO 123% 100% MINERA MEXICO, S.A. DE C.V. SALES ACUMULATED AS OF MARCH 31st, 2004 AND 2003 (THOUSAND OF U.S. DOLLARS) C O N C E P T VARIATION % 2004 2003 MINERA MEXICO GOLD 2,927 2,240 687 31 SILVER 25,580 16,525 9,055 55 LEAD 3,663 2,619 1,044 40 COPPER 206,887 92,594 114,293 123 ZINC 30,487 18,942 11,545 61 ZINC CONTAINED IN CONCENTRATES 1,818 2,126 (308) (14) COPPER CONTAINED IN CONCENTRATES 33,593 (26) 33,619 100 OTHERS 23,503 12,273 11,230 92 --------- --------- --------- --- T O T A L 328,458 147,293 181,165 123 MEXCOBRE GOLD 1,277 1,679 (402) (24) SILVER 3,779 6,593 (2,814) (43) COPPER 641 5 636 12,720 ELECTROLYTIC CATHODIC COPPER 103,858 38,748 65,110 168 ELECTROWON CATHODIC COPPER 18,633 9,246 9,387 102 COPPER ROD 43,328 22,040 21,288 97 COPPER CONTAINED IN CONCENTRATES 74 - 74 100 MOLYBDENUM 15,945 5,585 10,360 185 OTHERS 3,970 2,102 1,868 89 --------- --------- ------- --- SUBTOTAL 191,505 85,998 105,507 123 INTERCOMPANY SALES 1,362 8,350 (6,988) (84) --------- --------- --------- --- TOTAL 190,143 77,648 112,495 145 ========= ========= ========= === IMMSA/MIMENOSA(underground mines) GOLD 1,405 1,698 (293) (17) SILVER 17,668 13,336 4,332 32 LEAD 3,663 2,619 1,044 40 COPPER 11,237 6,079 5,158 85 ZINC 25,537 19,966 5,571 28 ZINC CONTAINED IN CONCENTRATES 4,875 2,126 2,749 129 COPPER CONTAINED IN CONCENTRATES 15,190 673 14,517 2,157 OTHERS 6,485 5,372 1,113 21 --------- --------- ------- --- SUBTOTAL 86,060 51,869 34,191 66 INTERCOMPANY SALES 13,989 7,644 6,345 83 --------- --------- ------- --- TOTAL 72,071 44,225 27,846 63 ========= ========= ======= === MEXCANANEA SILVER 2,009 452 1,557 344 COPPER - (136) 136 (100) COPPER CATHODES 31,996 25,717 6,279 24 COPPER CONTAINED IN CONCENTRATES 83,356 20,568 62,788 305 --------- --------- --------- --- SUBTOTAL 117,361 46,601 70,760 152 INTERCOMPANY SALES 51,117 21,181 29,936 141 --------- --------- --------- --- TOTAL 66,244 25,420 40,824 161 ========= ========= ========= === MINERA MEXICO, S.A. DE C.V. SALES VOLUME ACUMULATED AS OF MARCH 31st 2004 AND 2003 METRIC TONS (MT) C O N C E P T 2004 2003 VARIATION % MINERA MEXICO GOLD (Kg) 231 200 31 16 SILVER (Kg) 125,569 111,017 14,552 13 LEAD 4,756 5,801 (1,046) (18) COPPER 75,501 53,792 21,709 40 ZINC 27,210 22,638 4,572 20 ZINC CONTAINED IN CONCENTRATES 2,387 4,024 (1,637) (41) COPPER CONTAINED IN CONCENTRATES 13,434 (29) 13,463 - MEXCOBRE GOLD (Kg) 95 150 (55) (37) SILVER (Kg) 16,792 44,089 (27,297) (62) COPPER 725 66 659 1,002 ELECTROLYTIC CATHODIC COPPER 34,052 22,147 11,905 54 ELECTROWON CATHODIC COPPER 6,572 5,362 1,210 23 COPPER ROD 16,141 12,265 3,876 32 COPPER CONTAINED IN CONCENTRATES 2 0 2 100 MOLYBDENUM 943 687 256 37 IMMSA/MIMENOSA GOLD (Kg) 103 151 (48) (32) SILVER (Kg) 82,687 93,426 (10,739) (11) LEAD 4,756 5,801 (1,046) (18) COPPER 3,924 4,006 (82) (2) ZINC 23,404 24,086 (682) (3) ZINC CONTAINED IN CONCENTRATES 7,579 4,024 3,555 88 COPPER CONTAINED IN CONCENTRATES 6,648 635 6,013 946 MEXCANANEA SILVER (Kg) 9,381 3,044 6,337 208 COPPER CATHODES 12,330 15,574 (3,244) (21) COPPER CONTAINED IN CONCENTRATES 33,870 13,973 19,897 142 MEXICANA DE COBRE, S.A. DE C.V. COMPARATIVE SUMMARY OF PRODUCTION MINES AND PLANTS ACUMULATED OF MARCH 31st. 2004 AND 2003 C O N C E P T VARIATION % 2004 2003 M I N E PERFORATION (METERS) 78,608 72,743 5,865 8% ORE (000MT) 7,532 5,231 2,301 44% ORE GRADE % 0.500 0.529 (0.029) (5%) LEACH ORE (000 MT) 7,686 7,486 200 3% ORE GRADE % 0.269 0.287 (0.018) (6%) WASTE (000 MT) 4,014 3,562 452 13% STRIPPING RATIO W/(O+L) 0.26 0.28 (0.02) (7%) STRIPPING RATIO (L+W)/O 1.55 2.11 (0.56) (27%) MATERIAL MOVED (000 MT) 19,232 16,278 2,954 18% CONCENTRATOR RECOVERY 78.63 77.55 1.08 1% CONCENTRADOR CONCENTRATES PRODUCED 108,743 81,876 26,867 33% COPPER CONTAINED RECOVERED 29,374 21,503 7,871 37% GRADES COPPER IN CONCENTRATES PRODUCED % 27.01 26.26 0.75 3% POUNDS OF COPPER PRODUCED 64,757,800 47,406,230 17,351,570 37% SILVER CONTAINED IN CONCENTRATES KGS. 14,661 11,531 3,130 27% GOLD CONTAINED IN CONCENTRATES KGS. 56 38 18 47% MOLLY CONTAINED PRODUCED 998 713 285 40% SX-EW PLANTS COPPER CATHODES PRODUCED 5,839 5,473 366 7% POUNDS OF COPPER PRODUCED LB. 12,872,304 12,066,531 805,773 7% SMELTER CONCENTRATES PURCHASED 83,262 54,472 28,790 53% CONCENTRATES SMELTED 210,392 137,070 73,322 53% TOTAL SMELTED 276,725 181,412 95,313 53% COPPER CONTAINED 81,231 56,629 24,602 43% COPPER RECOVERED % 97.81 97.49 0.32 0% PRODUCTION IN MT COPPER ANODES 63,904 43,200 20,704 48% POUNDS OF COPPER PRODUCED 139,705,303 94,453,950 45,251,353 48% SULFURIC ACID PRODUCED 205,850 132,700 73,150 55% SILVER CONTAINED IN ANODES PRODUCED KGS. 29,929 42,162 (12,233) (29%) GOLD CONTAINED IN ANODES PRODUCED GRS. 165,580 173,714 (8,134) (5%) R E F I N E R Y COPPER CATHODES PRODUCED 50,041 34,185 15,856 46% POUNDS OF COPPER PRODUCED LB. 110,320,796 75,365,580 34,955,216 46% ROD PLANT COPPER ROD PRODUCED 16,864 11,848 5,016 42% POUNDS OF COPPER PRODUCED LB. 37,177,929 26,118,887 11,059,042 42% PRECIOUS METALS PLANT GOLD REFINED Oz. 3,223 4,836 (1,613) (33%) SILVER REFINED Oz. 594,250 1,413,443 (819,196) (58%) TOTAL CONTAINED COPPER PRODUCT T.M.S TMS 54,856 43,230 11,626 27% INDUSTRIAL MINERA MEXICO/MINERALES METALICOS DEL NORTE SUMMARY OF PRODUCTION OF MINES AND PLANTS ACUMULATED AS OF MARCH 31st, 2004 AND 2003 (METRIC TONS) C O N C E P T VARIATION % 2004 2003 UNDERGROUND MINES M I N E S MILLED TONS 1,090,532 1,062,978 27,554 3 C O N C E N T R A T E S ZINC 61,408 59,594 1,814 3 LEAD 9,587 9,927 (340) (3) COPPER 19,156 19,129 27 0 CONTENTS ZINC 33,404 32,324 1,080 3 LEAD 4,817 5,389 (572) (11) COPPER 3,968 4,403 (435) (10) SILVER (KGS) 79,796 82,781 (2,985) (4) GOLD (KGS) 46.035 66.408 (20.373) (31) P L A N T S SAN LUIS COPPER SMELTER GOLD (KGS) 151 200 (49) (25) SILVER (KGS) 62,489 74,177 (11,688) (16) COPPER BLISTER 5,500 6,006 (506) (8) ARSENIC 438 452 (14) (3) SAN LUIS ZINC REFINERY GOLD (KGS) 2 2 0 0 SILVER (KGS) 4,278 3,954 324 8 ZINC REFINED 27,427 24,191 3,236 13 SULFURIC ACID 48,535 43,692 4,843 11 CADMIUM 185 170 15 9 TOLLING GOLD (KGS) 29 39 (10) (26) SILVER (KGS) 31,011 37,131 (6,120) (16) LEAD 5,030 4,110 920 22 COAL PLANT COKE 9,097 21,361 (12,264) (57) COAL 82,808 105,962 (23,154) (22) MEXICANA DE CANANEA S.A. D E C.V. COMPARATIVE SUMMARY OF PRODUCTION MINES AND PLANTS ACUMULATED AS OF MARCH 31st, 2004 AND 2003 C O N C E P T VARIATION % 2004 2003 M I N E PERFORATION (METERS) 173,943 103,165 70,778 69% ORE (000 MT) 6,738 3,369 3,369 100% ORE GRADE % 0.623 0.532 0.091 17% LEACH ORE (000 MT) 6,580 7,321 (741) (10%) ORE GRADE % 0.288 0.249 0.039 16% WASTE (000 MT) 9,576 3,077 6,499 211% STRIPPING RATIO W/(O+L) 0.72 0.29 0.43 148% STRIPPING RATIO (L+W)/O 2.40 3.09 (0.69) (22%) MATERIAL MOVED (000 MT) 22,894 13,767 9,127 66% CONCENTRATOR RECOVERY % 81.23 79.48 1.75 2% CONCENTRATOR CONCENTRATES PRODUCED 127,199 50,847 76,352 150% COPPER CONTAINED RECOVERED 33,899 14,094 19,805 141% GRADES COPPER IN CONCENTRATES PRODUCE % 26.65 27.72 (1.07) (4%) POUNDS OF COPPER PRODUCED 74,735,428 31,071,716 43,663,712 141% SILVER CONTAINED IN CONCENTRATE KGS 11,155 4,484 6,671 149% GOLD CONTAINED IN CONCENTRATES KGS 177 44 73 166% SX-WE PLANTS COPPER CATHODES PRODUCED 12,109 9,877 2,232 23% POUNDS OF COPPER PRODUCED LB. 26,695,992 21,774,399 4,921,593 23% TOTAL CONTAINED COPPER PRODUCED TMS 44,742 23,851 20,891 88% INDUSTRIAL MINERA MEXICO / MINERALES METALICOS DEL NORTE COST OF PRODUCTION ACUMULATED AS OF MARCH 31st, 2004 AND 2003 (US DOLLARS) C O N C E P T 2004 2003 VARIATION % COST PER MT MILLED CHARCAS 13.98 13.37 0.60 5 SAN MARTIN 16.16 15.02 1.14 8 TAXCO 27.96 26.72 1.24 5 SANTA BARBARA 18.32 17.00 1.32 8 AVERAGE COST 17.21 16.17 1.05 6 TOTAL PRODUCTION COST-MINES (000) 19,306 17,679 1,627 9 COST PER MT PROCESSED SAN LUIS COBRE (BLISTER) 671.91 589.92 81.99 14 SAN LUIS ELECTROLITIC (Refined Zinc) 411.51 388.27 23.23 6 NUEVA ROSITA (COKE)* 221.33 109.23 112.10 103 TOTAL PRODUCTION COST-PLANTS (000) 17,474 14,947 2,527 17 TOTAL PRODUCTION COST-IMM (000) 36,780 32,626 4,154 13 *COST PER MT OF PRODUCED COKE MINERA MEXICO METALS INVENTORY MARCH 31st MARCH 31st VARIATION 2004 2003 % GOLD (KG) CONCENTRATE 169 85 99 IN PROCESS 40 431 (91) FINISHED 33 53 (38) TOTAL 242 569 (57) SILVER (KG) CONCENTRATE 16,445 19,656 (16) IN PROCESS 168,549 209,842 (20) FINISHED 12,371 21,004 (41) TOTAL 197,365 250,502 (21) LEAD (MT) CONCENTRATE 890 682 30 IN PROCESS 17,103 16,713 2 FINISHED 0 9 (100) TOTAL 17,993 17,404 3 COPPER (MT) CONCENTRATE 9,600 5,782 66 IN PROCESS 26,038 26,344 (1) FINISHED 4,280 8,894 (52) TOTAL 39,918 41,020 (3) ZINC (MT) CONCENTRATE 5,506 8,259 (33) IN PROCESS 9,907 11,116 (11) FINISHED 5,730 6,775 (15) TOTAL 21,143 26,150 (19) TOTAL GROUP (THOUSANDS OF DOLLARS) 132,637 129,425 2 MEXICANA DE COBRE / MEXICANA DE CANANEA COMPARATIVE SUMMARY OF PRODUCTION COST ACUMULATED AS OF MARCH 31st. 2004 AN 2003 U S D O L L A R S MEXICANA DE COBRE 2004 2003 VARIATION % MINE-CONCENTRATOR COST PER MT MINED 0.58 0.56 0.02 4% COST PER MT MILLED 4.12 4.28 (0.16) (4%) TOTAL PRODUCTION COST (000) 30,752 22,416 8,336 37% SX-EW PLANTS COST PER MT OF CATHODES PRODUCED 375.25 419.68 (44.43) (11%) TOTAL PRODUCTION COST (000) 2,191 2,297 (106) (5%) S M E L T E R COST PER MT OF ANODES PRODUCED 245.84 256.93 (11.09) (4%) TOTAL PRODUCTION COST (000) 15,710 11,100 4,610 42% R E F I N E R Y COST PER MT OF ANODES PRODUCED 68.31 81.33 (13.02) (16%) TOTAL PRODUCTION COST (000) 3,418 2,780 638 23% ROD PLANT COST PER MT OF ROD PRODUCED 73.44 91.78 (18.34) (20%) TOTAL PRODUCTION COST (000) 1,239 1,087 152 14% PRECIOUS METALS PLANT COST PER MT OF SLIMES PROCESSED 5,241.36 3,182.79 2,058.57 65% TOTAL PRODUCTION COST (000) 758 722 36 5% TOTAL PRODUCTION COST (000) 54,068 40,402 13,666 34% US CENTS PER POUND OF Cu PRODUCED MINE CONCENTRATOR 47.5 47.2 0.3 1% SX-EW PLANTS 17.0 19.0 (2.0) (11%) SMELTER 11.2 11.8 (0.6) (5%) REFINERY 3.1 3.7 (0.6) (16%) ROD PLANT 3.3 4.2 (0.9) (21%) U S D O L L A R S 2004 2003 VARIATION % MEXICANA DE CANANEA MINE CONCENTRATOR COST PER MT MINED 0.87 0.92 (0.06) (6%) COST PER MT MILLED 4.28 4.75 (0.47) (10%) TOTAL PRODUCTION COST (000) 28,638 15,880 12,758 80% U S D O L L A R S SX-EW PLANTS COST PER MT OF CATHODES PRODUCED 507.99 459.14 48.85 11% TOTAL PRODUCTION COST (000) 6,151 4,535 1,616 36% TOTAL PRODUCTION COST (000) 34,789 20,415 14,374 70% US CENTS PER POUND OF Cu PRODUCED MINE CONCENTRATOR 38.3 51.1 (12.8) (25%) SX-EW PLANTS 23.0 20.8 2.2 11%