Ternium S.A. — Interim / Quarterly Report 2006

May 2, 2006

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 Exchange Act of 1934 As of 04/28/2006 Ternium S.A. (Translation of Registrant's name into English) Ternium S.A. 46a, Avenue John F. Kennedy - 2nd floor L-1855 Luxembourg (352) 4661-11-3815 (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or 40-F. Form 20-F X Form 40-F --- --- Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12G3-2(b) under the Securities Exchange Act of 1934. Yes No X --- --- If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable The attached material is being furnished to the Securities and Exchange Commission pursuant to Rule 13a-16 and Form 6-K under the Securities Exchange Act of 1934, as amended. This report contains Ternium S.A.'s consolidated condensed interim financial statements as of March 31, 2006. TERNIUM S.A. CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS AS OF MARCH 31, 2006 AND FOR THE THREE-MONTH PERIODS ENDED MARCH 31, 2006 AND 2005 46a, Avenue John F. Kennedy, 2nd floor L - 1855 R.C.S. Luxembourg : B 98 668 TERNIUM S.A. Consolidated condensed interim financial statements as of March 31, 2006 and for the three-month periods ended March 31, 2006 and 2005 (All amounts in USD thousands) CONSOLIDATED CONDENSED INTERIM INCOME STATEMENTS

The accompanying notes are an integral part of these consolidated condensed interim financial statements. The Report of the Independent Registered Public Accounting Firm on these consolidated condensed interim financial statements is issued as a separate document. These consolidated condensed interim financial statements should be read in conjunction with our audited Combined Consolidated Financial Statements and notes for the fiscal year ended December 31, 2005. -2- TERNIUM S.A. Consolidated condensed interim financial statements as of March 31, 2006 and for the three-month periods ended March 31, 2006 and 2005 (All amounts in USD thousands) CONSOLIDATED CONDENSED BALANCE SHEETS

Contingencies, commitments and restrictions to the distribution of profits are disclosed in Note 10. The accompanying notes are an integral part of these consolidated condensed interim financial statements. The Report of the Independent Registered Public Accounting Firm on these consolidated condensed interim financial statements is issued as a separate document. These consolidated condensed interim financial statements should be read in conjunction with our audited Combined Consolidated Financial Statements and notes for the fiscal year ended December 31, 2005. -3- TERNIUM S.A. Consolidated condensed interim financial statements as of March 31, 2006 and for the three-month periods ended March 31, 2006 and 2005 (All amounts in USD thousands) CONSOLIDATED CONDENSED INTERIM STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(1) Shareholders equity determined in accordance with accounting principles generally accepted in Luxembourg is disclosed in Note 10 (ii). (2) Represents the difference between book value of non monetary contributions received form shareholders under Luxembourg GAAP and IFRS. Dividends may be paid by Ternium to the extent distributable retained earnings calculated in accordance with Luxembourg GAAP exist. Therefore, retained earnings included in these consolidated condensed interim financial statements may not be wholly distributable. See Note 10 (ii). The accompanying notes are an integral part of these consolidated condensed interim financial statements. The Report of the Independent Registered Public Accounting Firm on these consolidated condensed interim financial statements is issued as a separate document. These consolidated condensed interim financial statements should be read in conjunction with our audited Combined Consolidated Financial Statements and notes for the fiscal year ended December 31, 2005. -4- TERNIUM S.A. Consolidated condensed interim financial statements as of March 31, 2006 and for the three-month periods ended March 31, 2006 and 2005 (All amounts in USD thousands) CONSOLIDATED CONDENSED INTERIM CASH FLOW STATEMENTS

(1) In addition, the Company has restricted cash for USD 10,290 and USD 10,650 at March 31, 2006 and December 31, 2005, respectively. The accompanying notes are an integral part of these consolidated condensed interim financial statements. The Report of the Independent Registered Public Accounting Firm on these consolidated condensed interim financial statements is issued as a separate document. These consolidated condensed interim financial statements should be read in conjunction with our audited Combined Consolidated Financial Statements and notes for the fiscal year ended December 31, 2005. -5- TERNIUM S.A. Consolidated condensed interim financial statements as of March 31, 2006 and for the three-month periods ended March 31, 2006 and 2005 (All amounts in USD thousands) INDEX TO THE NOTES TO THE CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS 1 Basis of presentation 2 Accounting policies 3 Initial Public Offering 4 Segment information 5 Cost of sales 6 Selling, general and administrative expenses 7 Financial expenses, net 8 Investments in associated companies, net 9 Property, plant and equipment and Intangible assets, net 10 Contingencies, commitments and restrictions on the distribution of profits 11 Acquisition of business 12 Related party transactions 13 Recent accounting pronouncements 14 Post balance sheet events -6- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements 1 Basis of presentation Ternium S.A. (the "Company" or "Ternium"), a Luxembourg Corporation (Societe Anonyme), was incorporated on December 22, 2003 under the name of Zoompart Holding S.A. to hold investments in flat and long steel manufacturing and distributing companies. The extraordinary shareholders' meeting held on August 18, 2005, changed the corporate name to Ternium S.A. These consolidated condensed interim financial statements have been prepared in accordance with IAS 34, "Interim Financial Reporting". These consolidated condensed interim financial statements should be read in conjunction with the audited combined consolidated financial statements for the year ended December 31, 2005. Certain comparative amounts have been reclassified to conform to changes in presentation in the current period. The preparation of consolidated condensed interim financial statements requires management to make estimates and assumptions that might affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the balance sheet dates, and also the reported amounts of revenues and expenses for the reported periods. Actual results may differ from these estimates. Material intercompany transactions and balances have been eliminated in consolidation. However, the fact that the functional currency of the Company's subsidiaries differ, results in the generation of foreign exchange gains (losses) that are included in the consolidated condensed interim income statement under "Financial expenses, net". These consolidated condensed interim financial statements were approved by the Board of Directors of Ternium on April 28, 2006. 2 Accounting policies The accounting policies used in the preparation of these consolidated condensed interim financial statements are consistent with those used in the audited combined consolidated financial statements for the year ended December 31, 2005. A detail of the accounting policies followed by the Company in the preparation of these financial statements, other than those followed in the preparation of the audited combined consolidated financial statements for the year ended December 31, 2005 follows: - - Non-current assets (disposal groups) classified as held for sale Non-current assets (disposal groups) are classified as assets held for sale and stated at the lower of carrying amount and fair value less cost to sell if their carrying amount is recovered principally through a sale transaction rather than through a continuing use. The carrying value of non-current assets classified as held for sale total USD 9.8 million and include principally land and other real estate items. Sale is expected to be completed within a one year period. 3 Initial public offering In January 2006, the Company successfully completed its registration process with the United States Securities and Exchange Commission ("SEC") and announced the commencement of its offer to sell 24,844,720 American Depositary Shares ("ADS") representing 248,447,200 shares of common stock through Citigroup Global Markets Inc., Deutsche Bank Securities Inc., JP Morgan Securities Inc., Morgan Stanley & Co. Incorporated, BNP Paribas Securities Corp., Caylon Securities (USA) Inc. and Bayerische Hypo-und Vereinsbank AG (collectively, the "Underwriters" and the offering thereunder, the "Initial Public Offering"). The gross proceeds from the Initial Public Offering totaled USD 496.9 million and have been used to fully repay Tranche A of the Ternium Credit facility, after deducting related expenses. Also, the Company has granted to the Underwriters an option, exercisable for 30 days from January 31, 2006, to purchase up to 3,726,708 additional ADSs at the public offering price of USD20 per ADS less an underwriting discount of USD0.55 per ADS. On February 23, 2006 the underwriter exercised such option to purchase 2,298,136 ADSs at the public offering price of USD20 per ADS less an underwriting discount of USD0.55 per ADS. The gross proceeds from this transaction totaled USD 46.0 million. -7- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements (Contd.) 3 Initial public offering (continued) In addition, the Company entered into the Subordinated Convertible Loan Agreements for a total aggregate amount of USD594 million to fund the acquisition of Hylsamex. As per the provisions contained in the Subordinated Convertible Loan Agreements, the Subordinated Convertible Loans would be converted into shares of the Company upon delivery of Ternium's ADSs to the Underwriters. On February 6, 2006 the Company delivered the above mentioned ADSs and, accordingly, the Subordinated Convertible Loans (including interest accrued through January 31, 2006) were converted into shares at a conversion price of USD2 per share, resulting in the issuance of 302,962,261 new shares. Furthermore, in November 2005, Sidetur, a subsidiary of Sivensa, exchanged with ISL its 3.42% equity interest in Amazonia and USD 3,1 million in cash for shares of the Company. ISL has contributed such interest in Amazonia to the Company in exchange for shares of the Company after the settlement of the Initial Public Offering. 4 Segment information Primary reporting format - business segments Flat steel Long steel products products Other Total ------------------------------------------------ Three-month period ended March 31, 2006 Net sales 1,197,327 282,864 48,692 1,528,883 Cost of sales (748,689) (198,525) (39,971) (987,185) ------------------------------------------------ Gross profit 448,638 84,339 8,721 541,698 Depreciation - PP&E 89,938 11,407 308 101,653 Flat steel Long steel products products Other Total ----------- ------------------------------------ Three-month period ended March 31, 2005 Net sales 681,591 69,930 16,068 767,589 Cost of sales (369,528) (38,617) (10,020) (418,165) ----------- ------------------------------------ Gross profit 312,063 31,313 6,048 349,424 Depreciation - PP&E 43,289 4,204 - 47,493 Secondary reporting format - geographical segments Allocation of net sales is based on the customers' location. Allocation of assets and capital expenditures is based on the assets' location. Ternium's subsidiaries operate for three main geographical areas. The North American segment comprises principally United States, Canada and Mexico. The South and Central American segment comprises principally Argentina, Brazil, Colombia, Venezuela and Ecuador. -8- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements (Contd.) 4 Segment information (continued) South and Europe Central North and America America others Total ---------- ---------- ---------- ---------- Three-month period ended March 31, 2006 Net sales 827,884 686,704 14,295 1,528,883 Depreciation - PP&E. 68,445 33,201 7 101,653 Three-month period ended March 31, 2005 Net sales 482,639 162,648 122,302 767,589 Depreciation - PP&E. 47,482 4 7 47,493 5 Cost of sales

-9- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements (Contd.) 7 Financial expenses, net Three-month period ended March 31, ------------------------- 2006 2005 ------------------------- (Unaudited) Interest expense (37,376) (5,175) Interest income 12,153 3,895 Net foreign exchange transaction gains and change in fair value of derivative instruments (5,496) (28,465) Write-off of debt issue costs (9,030) - Income from Participation Account (i) - 44,050 Loss from Participation Account (i) (83,305) (53,100) Others (476) (106) ---------- ------------ Financial expenses, net (123,530) (38,901) ---------- ------------ (i) Until February 15, 2005, the Company accounted for its investment in Amazonia under the equity method of accounting. Thus, income arising from the Participation Account Agreement has been recorded under Income from Participation Account within Financial expenses, net. Upon conversion of the Amazonia Convertible Debt Instrument on February 15, 2005, the Company acquired control over Amazonia and began accounting for such investment on a consolidated basis. Accordingly, income resulting from Ternium's share of the Participation Account as from February 15, 2005, has been offset against Amazonia's loss for the same concept and shown net under Loss from Participation Account line item. 8 Investments in associated companies, net Three-month period ended March 31, ----------------------------------- 2006 2005 ----------------------------------- (Unaudited) At the beginning of the year 9,122 309,318 Translation adjustment 29 (3,425) Equity in (losses) earnings of associated companies (1,828) 19,309 Consolidation of Amazonia - (318,166) ----------------- ----------------- At the end of the period 7,323 7,036 ----------------- ----------------- 9 Property, plant and equipment and Intangible assets, net Net Property, Plant and Net Intangible Equipment Assets ---------------- ----------------- (Unaudited) (Unaudited) Three-month period ended March 31, 2006 At the beginning of the year 5,463,871 552,882 Currency translation differences (64,426) (3,985) Transfers (9,633) - Additions 86,430 3,568 Disposals (4,013) - Increase due to business acquisition 47,825 - Depreciation/ Amortization charge (101,653) (4,647) ---------------- ----------------- At the end of the period 5,418,401 547,818 ---------------- ----------------- -10- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements (Contd.) 10 Contingencies, commitments and restrictions on the distribution of profits This note should be read in conjunction with Note 29 to the Company's audited Combined Consolidated Financial Statements for the year ended December 31, 2005. Significant changes or events since the date of the annual report are as follows: (i) Consorcio Siderurgia Amazonia Ltd .- PDVSA-Gas C.A. claim As a consequence of the commercial transactions entered into by Sidor and PDVSA-Gas during the three-month period ended March 31, 2006, Sidor's potential exposure under its litigation against that company increased by USD 7.8 million, thus reaching a total amount of USD 102.1 million. (ii) Restrictions on the distribution of profits Under Luxembourg law, at least 5% of net income per year calculated in accordance with Luxembourg law and regulations must be allocated to a reserve until such reserve has reached an amount equal to 10% of the share capital. Ternium may pay dividends to the extent that it has distributable retained earnings and distributable reserves calculated in accordance with Luxembourg law and regulations. Therefore, retained earnings included in the consolidated condensed interim financial statements may not be wholly distributable. Shareholders' equity under Luxembourg law and regulations comprises the following captions (amounts in USD thousands): At March 31, 2006 ----------------- Share capital 2,004,744 Initial Public Offering expenses (14,928) Legal reserve 200,474 Distributable reserves 402,149 Non distributable reserves 1,414,122 Accumulated profit at January 1, 2006 107,612 Profit for the period 18,337 ----------------- Total shareholders' equity under Luxembourg GAAP 4,132,510 ----------------- 11 Acquisition of business On November 18 2005, Ternium's Argentine subsidiary, Siderar, agreed to acquire assets and facilities of Acindar Industria Argentina de Aceros S.A. ("Acindar") related to the production of welded steel pipes in the province of Santa Fe in Argentina, as well as 100% of the issued and outstanding shares of Impeco S.A., which in turn owns a plant located in the province of San Luis in Argentina. Purchase price paid totaled USD 55.2 million, subject to subsequent adjustments. These two plants have a production capacity of 140 thousand tons per year of tubes to be used in the construction, agricultural and manufacturing industries. The acquisition has been approved by the Argentine competition authorities and was completed on January 31, 2006. This acquisition did not give rise to goodwill. The acquired business contributed revenues of USD 9.9 million in the three month period ended March 31, 2006. The fair value of assets and liabilities arising from acquisition are as follows: USD thousands ---------------- Property, plant and equipment 47,825 Inventories 8,180 Cash and cash equivalents - Deferred tax liabilities (875) Others assets and liabilities, net 53 ---------------- Net 55,183 ---------------- -11- TERNIUM S.A. Notes to the Consolidated Condensed Interim Financial Statements (Contd.) 12 Related parties transactions The Company is controlled by San Faustin N.V., a Netherlands Antilles corporation, which owns 70.52% of the Company's outstanding shares, either directly or indirectly. The ultimate controlling entity of the Company is Rocca & Partners, a British Virgin Islands corporation. The following transactions were carried out with related parties:

(iii) Officers and Directors' compensation The aggregate compensation of Officers and Directors earned during the three-month period ended March 31, 2006 amounts to USD 3,426 thousands. -12- 13 Recent accounting pronouncements IFRIC Interpretation 9, Reassessment of Embedded Derivatives In February 2006, the International Financial Reporting Interpretations Committee ("IFRIC") issued IFRIC Interpretation 9 "Reassessment of Embedded Derivatives" ("IFRIC 9"). IFRIC 9 applies to all embedded derivatives within the scope of International Accounting Standard No. 39. However, it does not address (i) remeasurement issues arising from a reassessment of embedded derivatives, or (ii) the acquisition of contracts with embedded derivatives in a business combination nor their possible reassessment at the date of acquisition. Paragraph 7 of IFRIC 9 states that an entity shall assess whether an embedded derivative is required to be separated from the host contract and accounted for as a derivative when the entity first becomes a party to the contract. Subsequent reassessment is prohibited unless there is a change in the terms of the contract that significantly modifies the cash flows that otherwise would be required under the contract, in which case reassessment is required. Also, paragraph 8 of IFRIC 9 states that a first-time adopter shall assess whether an embedded derivative is required to be separated from the host contract and accounted for as a derivative on the basis of the conditions that existed at the later of the date it first became a party to the contract and the date a reassessment is required by paragraph 7. An entity shall apply this Interpretation for annual periods beginning on or after 1 June 2006, although earlier application is encouraged. If an entity applies the Interpretation for a period beginning before 1 June 2006, it shall disclose that fact. The Interpretation shall be applied retrospectively. The Company's management has not assessed the potential impact that the application of IFRIC 9 may have on the Company's financial condition or results of operations. 14 Post balance sheet events The following are the main post balance sheet events: a) In April 2006, the Company acquired a 50% equity interest in Acerex S.A. de C.V. ("Acerex") through its subsidiary Hylsa S.A. de C.V. Total purchase price accounted for USD 44.6 million. Upon completion of this transaction (which is expected to occur in the second quarter of fiscal year 2006 following the approval by the Mexican competition authorities) Hylsa S.A. de C.V. will own 100% of Acerex. Acerex is a service center dedicated to processing steel to produce short-length and steel sheets in various widths. Acerex operates as a cutting and processing plant for Ternium's Mexican operations and as an independent processor for other steel companies. b) On April 19, 2006, the Shareholders' Meeting of Siderar, approved the distribution of dividends in cash for 122.8 million of Argentine pesos (approximately USD 40.0 million). Roberto Philipps Chief Financial Officer -13- 1 SIGNATURE 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. TERNIUM S.A. By: /s/ Roberto Philipps By: /s/ Daniel Novegil -------------------------- -------------------------- Name: Roberto Philipps Name: Daniel Novegil Title: Chief Financial Officer Title: Chief Executive Officer Dated: April 28, 2006