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 10/31/2017

Ternium S.A.

(Translation of Registrant's name into English)

Ternium S.A.
29 Avenue de la Porte-Neuve – 3rd floor

L-2227 Luxembourg

(352) 2668-3152

(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  Ö    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  Ö

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 financial statements as of September 30, 2017.

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.

Dated: October 31, 2017

INDEX

Consolidated Condensed Interim Income Statements

The accompanying notes are an integral part of these consolidated condensed interim financial statements. These consolidated condensed interim financial statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the year ended December 31, 2016.

Consolidated Condensed Interim Statements of Comprehensive Income

The accompanying notes are an integral part of these consolidated condensed interim financial statements. These consolidated condensed interim financial statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the year ended December 31, 2016.

Consolidated Condensed Interim Statements of Financial Position

The accompanying notes are an integral part of these consolidated condensed interim financial statements. These consolidated condensed interim financial statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the year ended December 31, 2016.

Consolidated Condensed Interim Statements of Changes in Equity

(1) Shareholders’ equity determined in accordance with accounting principles generally accepted in Luxembourg is disclosed in Note 12 (iii).

(2) The Company has an authorized share capital of a single class of 3.5 billion shares having a nominal value of USD 1.00 per share. As of September 30, 2017, there were 2,004,743,442 shares issued. All issued shares are fully paid. Also, as of September 30, 2017, the Company held 41,666,666 shares as treasury shares.

(3) Include legal reserve under Luxembourg law for USD 200.5 million, undistributable reserves under Luxembourg law for USD 1.4 billion, hedge accounting reserve, net of tax effect, for USD 0.1 million and reserves related to the acquisition of non-controlling interest in subsidiaries for USD (88.5) million.

(4) Represents the difference between book value of non-monetary contributions received from shareholders under Luxembourg GAAP and IFRS.

(5) See note 11.

Dividends may be paid by Ternium to the extent distributable retained earnings calculated in accordance with Luxembourg law and regulations exist. Therefore, retained earnings included in these consolidated condensed interim financial statements may not be wholly distributable. See Note 12 (iii).

The accompanying notes are an integral part of these consolidated condensed interim financial statements. These consolidated condensed interim financial statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the year ended December 31, 2016.

Consolidated Condensed Interim Statements of Changes in Equity

(1) Shareholders’ equity determined in accordance with accounting principles generally accepted in Luxembourg is disclosed in Note 12 (iii).

(2) The Company has an authorized share capital of a single class of 3.5 billion shares having a nominal value of USD 1.00 per share. As of September 30, 2016, there were 2,004,743,442 shares issued. All issued shares are fully paid. Also, as of September 30, 2016, the Company held 41,666,666 shares as treasury shares.

(3) Include legal reserve under Luxembourg law for USD 200.5 million, undistributable reserves under Luxembourg law for USD 1.4 billion, hedge accounting reserve, net of tax effect, for USD (0.9) million and reserves related to the acquisition of non-controlling interest in subsidiaries for USD (88.5) million.

(4) Represents the difference between book value of non-monetary contributions received from shareholders under Luxembourg GAAP and IFRS.

Dividends may be paid by Ternium to the extent distributable retained earnings calculated in accordance with Luxembourg law and regulations exist. Therefore, retained earnings included in these consolidated condensed interim financial statements may not be wholly distributable. See Note 12 (iii).

The accompanying notes are an integral part of these consolidated condensed interim financial statements. These consolidated condensed interim financial statements should be read in conjunction with our audited Consolidated Financial Statements and notes for the year ended December 31, 2016.

Page 7 of 27

Notes to the Consolidated Condensed Interim Financial Statements

1.    GENERAL INFORMATION AND BASIS OF PRESENTATION

a)  General information and basis of presentation

Ternium S.A. (the “Company” or “Ternium”), was incorporated on December 22, 2003 to hold investments in flat and long steel manufacturing and distributing companies.  The Company has an authorized share capital of a single class of 3.5 billion shares having a nominal value of USD 1.00 per share.  As of September 30, 2017, there were 2,004,743,442 shares issued.  All issued shares are fully paid.

Following a corporate reorganization carried out during fiscal year 2005, in January 2006 the Company successfully completed its registration process with the United States Securities and Exchange Commission (“SEC”).  Ternium’s ADSs began trading on the New York Stock Exchange under the symbol “TX” on February 1, 2006.  The Company’s initial public offering was settled on February 6, 2006.  

The Company was initially established as a public limited liability company (société anonyme) under Luxembourg’s 1929 holding company regime.  Until termination of such regime on December 31, 2010, holding companies incorporated under the 1929 regime (including the Company) were exempt from Luxembourg corporate and withholding tax over dividends distributed to shareholders.

On January 1, 2011, the Company became an ordinary public limited liability company (société anonyme) and, effective as from that date, the Company is subject to all applicable Luxembourg taxes (including, among others, corporate income tax on its worldwide income) and its dividend distributions will generally be subject to Luxembourg withholding tax. However, dividends received by the Company from subsidiaries in high income tax jurisdictions, as defined under Luxembourg law, will continue to be exempt from corporate income tax in Luxembourg under Luxembourg’s participation exemption.

As part of the Company’s corporate reorganization in connection with the termination of Luxembourg’s 1929 holding company regime, on December 6, 2010, the Company contributed its equity holdings in all its subsidiaries and all its financial assets to its Luxembourg wholly-owned subsidiary Ternium Investments S.à r.l., or Ternium Investments, in exchange for newly issued corporate units of Ternium Investments. As the assets contributed were recorded at their historical carrying amount in accordance with Luxembourg GAAP, the Company’s December 2010 contribution of such assets to Ternium Investments resulted in a non-taxable revaluation of the accounting value of the Company’s assets under Luxembourg GAAP. The amount of the December 2010 revaluation was equal to the difference between the historical carrying amounts of the assets contributed and the value at which such assets were contributed and amounted to USD 4.0 billion. However, for the purpose of these consolidated condensed interim financial statements, the assets contributed by Ternium to its wholly-owned subsidiary Ternium Investments were recorded based on their historical carrying amounts in accordance with IFRS, with no impact on the financial statements.

1.    GENERAL INFORMATION AND BASIS OF PRESENTATION (continued)

Following the completion of the corporate reorganization, and upon its conversion into an ordinary Luxembourg holding company, the Company voluntarily recorded a special reserve exclusively for tax-basis purposes. As of December 31, 2016 and 2015, this special reserve amounted to USD 6.9 billion and USD 7.1 billion, respectively. The Company expects that, as a result of its corporate reorganization, its current overall tax burden will not increase, as all or substantially all of its dividend income will come from high income tax jurisdictions. In addition, the Company expects that dividend distributions for the foreseeable future will be imputed to the special reserve and therefore should be exempt from Luxembourg withholding tax under current Luxembourg law.

The name and percentage of ownership of subsidiaries that have been included in consolidation in these Consolidated Condensed Interim Financial Statements is disclosed in Note 2 to the audited Consolidated Financial Statements for the year ended December 31, 2016.

Certain comparative amounts have been reclassified to conform to changes in presentation in the current period. These reclassifications do not have a material effect on the Company’s condensed interim consolidated financial statements.

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 date of the statement of financial position, and also the reported amounts of revenues and expenses for the reported periods. Actual results may differ from these estimates. The main assumptions and estimates were disclosed in the Consolidated Financial Statements for the year ended December 31, 2016, without significant changes since its publication, except for the assumptions and estimates in connection with the acquisition of business (see note 13).

Material intercompany transactions and balances have been eliminated in consolidation. However, the fact that the functional currency of the Company’s subsidiaries differs, results in the generation of foreign exchange gains and losses that are included in the Consolidated Condensed Interim Income Statement under “Other financial income (expenses), net”.

These Consolidated Condensed Interim Financial Statements have been approved for issue by the Board of Directors of Ternium on October 31, 2017.

2.     ACCOUNTING POLICIES

These Consolidated Condensed Interim Financial Statements have been prepared in accordance with IAS 34, “Interim Financial Reporting” and are unaudited. These Consolidated Condensed Interim Financial Statements should be read in conjunction with the audited Consolidated Financial Statements for the year ended December 31, 2016, which have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) and in conformity with International Financial Reporting Standards as adopted by the European Union (“EU”). Recently issued accounting pronouncements were applied by the Company as from their respective dates.

2.     ACCOUNTING POLICIES (continued)

These Consolidated Condensed Interim Financial Statements have been prepared following the same accounting policies used in the preparation of the audited Consolidated Financial Statements for the year ended December 31, 2016. Given that the Company has entered into a new leasing agreement that qualifies as finance leasing (see note 10), and the related accounting policy was not disclosed in the Consolidated Financial Statements as of December 31, 2016, as the Company did not have any financial leasing at such date, the accounting policy is detailed below:

Finance leases

Leases of property, plant and equipment where the Company, as lessee, has substantially all the risks and rewards of ownership are classified as finance leases. Finance leases are capitalized at the lease’s inception at the fair value of the leased property or, if lower, the present value of the minimum lease payments. The corresponding rental obligations, net of finance charges, are included in other short-term and long-term payables. Each lease payment is allocated between the liability and finance cost. The finance cost is charged to the profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The property, plant and equipment acquired under finance leases is depreciated over the asset’s useful life or over the shorter of the asset’s useful life and the lease term if there is no reasonable certainty that the Company will obtain ownership at the end of the lease term.

None of the accounting pronouncements issued after December 31, 2016, and as of the date of these Consolidated Condensed Interim Financial Statements have a material effect on the Company’s financial condition or result or operations.

International Financial Reporting Standard 9, “Financial instruments”

In July 2014, the IASB issued IFRS 9, "Financial instruments", which replaces the guidance in IAS 39. It includes requirements on the classification and measurement of financial assets and liabilities, as well as an expected credit losses model that replaces the current incurred loss impairment model. IFRS 9 must be applied on annual periods beginning on or after January 1, 2018. The Company’s management does not anticipate that this standard will have a significant impact on the classification and measurement of its financial assets, liabilities and hedge accounting.

International Financial Reporting Standard 15, “Revenue from contracts with customers”

In May 2014, the IASB issued IFRS 15, "Revenue from contracts with customers", which sets out the requirements in accounting for revenue arising from contracts with customers and which is based on the principle that revenue is recognized when control of a good or service is transferred to the customer. IFRS 15 must be applied on annual periods beginning on or after January 1, 2018. The Company's management is currently finalizing the potential impact that the application of this standard may have on the Company's financial condition or results of operations.

3.    SEGMENT INFORMATION

REPORTABLE OPERATING SEGMENTS

The Company is organized in two reportable segments: Steel and Mining.

The Steel segment includes the sales of steel products, which comprises slabs, hot rolled coils and sheets, cold rolled coils and sheets, tin plate, welded pipes, hot dipped galvanized and electro-galvanized sheets, pre-painted sheets, billets (steel in its basic, semi-finished state), wire rod and bars and other tailor-made products to serve its customers’ requirements.

The Steel segment comprises three operating segments: Mexico, Southern Region and Other markets. These three segments have been aggregated considering the economic characteristics and financial effects of each business activity in which the entity engages; the related economic environment in which it operates; the type or class of customer for the products; the nature of the products; and the production processes. The Mexico operating segment comprises the Company’s businesses in Mexico. The Southern region operating segment manages the businesses in Argentina, Paraguay, Chile, Bolivia and Uruguay. The Other markets operating segment includes businesses mainly in Brazil, United States, Colombia, Guatemala, Costa Rica, El Salvador, Nicaragua and Honduras.

The Mining segment includes the sales of mining products, mainly iron ore and pellets, and comprises the mining activities of Las Encinas, an iron ore mining company in which Ternium holds a 100% equity interest and the 50% of the operations and results performed by Peña Colorada, another iron ore mining company in which Ternium maintains that same percentage over its equity interest. Both mining operations are located in Mexico.

Ternium’s Chief Operating Decision Maker (CEO) holds monthly meetings with senior management, in which operating and financial performance information is reviewed, including financial information that differs from IFRS principally as follows:

- The use of direct cost methodology to calculate the inventories, while under IFRS is at full cost, including absorption of production overheads and depreciation.

- The use of costs based on previously internally defined cost estimates, while, under IFRS, costs are calculated at historical cost (with the FIFO method).

- Other timing and non-significant differences.

Most information on segment assets is not disclosed as it is not reviewed by the CODM (CEO).

3.    SEGMENT INFORMATION (continued)

3.    SEGMENT INFORMATION (continued)

GEOGRAPHICAL INFORMATION

For purposes of reporting geographical information, net sales are allocated based on the customer’s location. Allocation of non-current assets is based on the geographical location of the underlying assets.

4.    COST OF SALES

5.    SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

6.    FINANCE EXPENSE, FINANCE INCOME AND OTHER FINANCIAL INCOME (EXPENSES) , NET

7.    PROPERTY, PLANT AND EQUIPMENT, NET

8.    INTANGIBLE ASSETS, NET

9.    INVESTMENTS IN NON-CONSOLIDATED COMPANIES

 (1) It includes the investments held in Techgen S.A. de C.V., Finma S.A.I.F., Arhsa S.A., Techinst S.A., Recrotek  S.R.L. de C.V. and Gas Industrial de Monterrey S.A. de C.V.

(a) Usinas Siderurgicas de Minas Gerais S.A. - USIMINAS

On January 16, 2012, the Company’s wholly-owned Luxembourg subsidiary Ternium Investments S.à r.l. (“Ternium Investments”), together with the Company’s Argentine majority-owned subsidiary Siderar S.A.I.C. (“Siderar”), Siderar’s wholly-owned Uruguayan subsidiary Prosid Investments S.A. (“Prosid”), and Confab Industrial S.A., a Brazilian subsidiary of Tenaris S.A. (“TenarisConfab”), joined Usiminas’ existing control group through the acquisition of 84.7, 30.0, and 25.0 million ordinary shares, respectively. The rights and obligations of the control group members are governed by a shareholders’ agreement. As a result of these transactions, the control group, which holds ordinary shares representing the majority of Usiminas’ voting rights, is formed as follows: Nippon Steel & Sumitomo Metal Corporation Group (“NSSMC”, formerly Nippon Group), with 46.1% of the voting rights within the control group; T/T Group (comprising TenarisConfab, Prosid, Siderar and Ternium Investments), with 43.3%; and Previdência Usiminas (Usiminas’ employee pension fund), with the remainder 10.6%.

On October 2, 2014, Ternium Investments entered into a purchase agreement with Caixa de Previdência dos Funcionários do Banco do Brasil – PREVI for the acquisition of 51.4 million ordinary shares of Usiminas at a price of BRL 12 per share, for a total amount of BRL 616.7 million. On October 30, 2014, Ternium Investments completed the acquisition. These additional shares are not subject to the Usiminas shareholders agreement, but must be voted in accordance with the control group decisions.

On April 20, 2016, Ternium (through Ternium Investments, Siderar and Prosid) subscribed, in the aggregate, to 8.5 million preferred shares for a total subscription price of BRL 10.9 million (approximately USD 3.1 million). These preferred shares were issued on June 3, 2016. 

9.       INVESTMENTS IN NON-CONSOLIDATED COMPANIES (continued)

On April 18, 2016, Usiminas’ extraordinary general shareholders’ meeting approved an issuance of 200 million ordinary shares for an aggregate amount of BRL 1 billion and Usiminas launched a multi-round subscription process. On July 19, 2016, following the completion of the subscription process, Usiminas’ extraordinary general shareholders’ meeting homologated the capital increase, and Ternium (through Ternium Investments, Siderar and Prosid) was issued, in the aggregate, 76.4 million ordinary shares for a total subscription price of BRL 382.2 million (approximately USD 110.9 million). Following the issuance of these ordinary shares, Ternium (through Ternium Investments, Siderar and Prosid) owns a total of 242.6 million ordinary shares and 8.5 million preferred shares, representing 20.5% of Usiminas’ capital, and the T/T Group owns 39.6% of Usiminas’ ordinary shares and 1.8% of Usiminas’ preferred shares. Ternium continues to hold 35.6% of Usiminas’ voting rights within the control group and has a participation in Usiminas’ results of 20.5%.

As of September 30, 2017, the closing price of the Usiminas ordinary and preferred shares, as quoted on the BM&F Bovespa Stock Exchange, was BRL 10.05 (approximately USD 3.17) per ordinary share and BRL 7.78 (approximately USD 2.46) per preferred share, respectively. Accordingly, as of September 30, 2017, Ternium’s ownership stake had a market value of approximately USD 790.5 million and a carrying value of USD 483.0 million.

The Company reviews periodically the recoverability of its investment in Usiminas. To determine the recoverable value, the Company estimates the value in use of the investment by calculating the present value of the expected cash flows or its fair value less costs of disposal.

Usiminas financial restructuring process (that started in April 2016 with the capital increase) was completed by the end of August 2017. The completion of this process together with the increase in the share price since June 2016 and the improvement in business conditions may lead to an increase in the value of the investment in Usiminas in future periods.

As of September 30, 2017, the value of the investment in Usiminas is comprised as follows:

The investment in Usiminas is based in the following calculation: