UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 or 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October, 2018

Commission File Number: 001-14946

CEMEX, S.A.B. de C.V.

(Translation of Registrant’s name into English)

Avenida Ricardo Margáin Zozaya #325, Colonia Valle del Campestre,

San Pedro Garza García, Nuevo León 66265, México

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F    ☒                Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Contents

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, CEMEX, S.A.B. de C.V. has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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EXHIBIT INDEX

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Exhibit 2

2018 THIRD QUARTER RESULTS Stock Listing Information Colombian Stock Exchange S.A. Ticker: CLH Investor Relations Pablo Gutiérrez +57 (1) 603-9051 E-mail: pabloantonio.gutierrez@cemex.com

OPERATING AND FINANCIAL HIGHLIGHTS January - September Third Quarter 2018 2017 % var 2018 2017 % var Consolidated cement volume 4,969 5,455 (9%) 1,638 1,812 (10%) Consolidated domestic gray cement volume 4,366 4,757 (8%) 1,462 1,571 (7%) Consolidated ready-mix volume 1,945 2,197 (11%) 658 721 (9%) Consolidated aggregates volume 4,794 5,234 (8%) 1,559 1,695 (8%) Net sales 849 928 (9%) 277 302 (8%) Gross profit 346 410 (15%) 114 129 (12%) as % of net sales 40.8% 44.1% (3.3pp) 41.1% 42.7% (1.6pp) Operating earnings before other expenses, net 129 184 (30%) 41 55 (26%) as % of net sales 15.2% 19.8% (4.6pp) 14.8% 18.3% (3.5pp) Controlling interest net income (loss) 53 79 (33%) 20 28 (30%) Operating EBITDA 188 242 (22%) 60 72 (17%) as % of net sales 22.1% 26.1% (4.0pp) 21.7% 23.9% (2.2pp) Free cash flow after maintenance capital 35 77 (55%) 16 19 (13%) expenditures Free cash flow 34 46 (26%) 17 17 3% Net debt 811 881 (8%) 811 881 (8%) Total debt 834 922 (10%) 834 922 (10%) Earnings of continuing operations per share 0.10 0.13 (21%) 0.05 0.05 (6%) Shares outstanding at end of period 557 557 0% 557 557 0% Employees 4,156 4,351 (4%) 4,156 4,351 (4%) Cement and aggregates volumes in thousands of metric tons. Ready-mix volumes in thousands of cubic meters. In millions of US dollars, except volumes, percentages, employees, and per-share amounts. Shares outstanding are presented in millions. Consolidated net sales during the third quarter of 2018 declined by 8% Operating EBITDA margin during the third quarter of 2018 declined by compared to those in the third quarter of 2017. The decline is mainly 2.2pp, compared to that of the third quarter of 2017. due to lower volumes partially offset by higher cement prices. Controlling interest net income during the third quarter of 2018 Cost of sales as a percentage of net sales during the third quarter reached US$20 million, compared to US$28 million in the same quarter increased by 1.6pp from 57.3% to 58.9%, on a year-over-year basis. of 2017. The decline was primarily driven by lower gross profit and a negative effect in discontinued operations, partially offset by a positive Operating expenses as a percentage of net sales during the quarter effect in other expenses, net, as well as lower financial expenses and increased by 1.8pp from 24.5% to 26.3%, compared to those of the same taxes. period of 2017. Total debt decreased by US$61 million during the quarter, reaching Operating EBITDA during the third quarter of 2018 declined by 17% US$834 million. compared to that of the third quarter of 2017. The decline is mainly explained by lower results in Panama and Nicaragua, partially offset by improvements in Colombia.

OPERATING RESULTS Colombia January - September Third Quarter 2018 2017 % var 2018 2017 % var Net sales 399 432 (8%) 134 142 (5%) Operating EBITDA 73 83 (12%) 26 22 16% Operating EBITDA margin 18.2% 19.2% (1.0pp) 19.4% 15.9% 3.5pp In millions of US dollars, except percentages. Domestic gray cement Ready-Mix Aggregates January - January - January - Third Quarter Third Quarter Third Quarter September September September Volume (10%) (8%) (13%) (11%) (13%) (12%) Price (USD) 3% 6% 2% (0%) 0% 0% Price (local currency) 2% 6% 0% (0%) (2%) 0% Year-over-year percentage variation. In Colombia, during the third quarter our domestic gray cement, ready-mix and aggregates volumes declined by 8%, 11%, and 12%, respectively, compared to those of the third quarter of 2017. For the first nine months of the year, our domestic gray cement, ready-mix and aggregates volumes decreased by 10%, 13%, and 13%, respectively, compared to those of the same period of 2017. Cement volumes increased by 7% sequentially during the third quarter reflecting the acceleration of industry demand after the elections, as well as a slight improvement in our estimated market position on a sequential basis. Our cement prices in local currency during the quarter were 6% higher on a year-over-year basis. Panama January - September Third Quarter 2018 2017 % var 2018 2017 % var Net sales 169 212 (20%) 58 71 (18%) Operating EBITDA 51 88 (42%) 16 30 (44%) Operating EBITDA margin 30.2% 41.3% (11.1pp) 28.5% 42.1% (13.6pp) In millions of US dollars, except percentages. Domestic gray cement Ready-Mix Aggregates January - January - January - Third Quarter Third Quarter Third Quarter September September September Volume (20%) (16%) (18%) (9%) (7%) (13%) Price (USD) (1%) (1%) (8%) (9%) (0%) 9% Price (local currency) (1%) (1%) (8%) (9%) (0%) 9% Year-over-year percentage variation. In Panama during the third quarter our domestic gray cement, ready-mix and aggregates volumes decreased by 16%, 9%, and 13%, respectively, compared to those in the third quarter of 2017. For the first nine months of 2018, our domestic gray cement, ready-mix and aggregates volumes declined by 20%, 18%, and 7%, respectively, compared to those in the same period of 2017. Our cement volumes improved by 10% during the third quarter on a sequential basis, mostly due to a low comparison base with the previous quarter which was affected by the construction-workers strike. Our quarterly cement volumes declined on a year-over-year basis mainly due to a subdued market demand. Weakness in the residential sector was partially offset by improvements in infrastructure activity. Please note that we observed no significant imports during the quarter.

OPERATING RESULTS Costa Rica January - September Third Quarter 2018 2017 % var 2018 2017 % var Net sales 112 114 (2%) 33 37 (11%) Operating EBITDA 37 40 (8%) 11 13 (12%) Operating EBITDA margin 32.9% 35.2% (2.3pp) 34.8% 35.1% (0.3pp) In millions of US dollars, except percentages. Domestic gray cement Ready-Mix Aggregates January - January - January - Third Quarter Third Quarter Third Quarter September September September Volume 6% (4%) 10% (6%) 9% 18% Price (USD) 2% 3% 2% 7% (13%) (21%) Price (local currency) 2% 3% 2% 8% (13%) (21%) Year-over-year percentage variation. In Costa Rica, during the third quarter our domestic gray cement and ready-mix volumes declined by 4% and 6%, respectively, while our aggregates volumes increased by 18%, compared to those in the third quarter of 2017. For the first nine months of the year our domestic gray cement, ready-mix and aggregates volumes increased by 6%, 10% and 9%, respectively, compared to those of the same period of 2017. Our national cement consumption estimates indicate that demand declined by around 9% during the third quarter. About 2 percentage points of this decline was due to a state-workers strike that lowered activity for 21 days in September. Our cement volumes outperformed the industry during the quarter due to an improvement in our estimated market position on a year-over-year basis. However, on a sequential basis, our estimated position declined during the quarter due to a new competitor that commissioned its grinding mill in July. Our volumes during the quarter were supported by ongoing projects like the wholesale market in the North-Pacific region and the new building for the Parliament. Additionally, two relevant projects started consumption during the quarter: the new Central-Bank building and the new Coca-Cola plant. Rest of CLH January - September Third Quarter 2018 2017 % var 2018 2017 % var Net sales 180 189 (5%) 56 57 (2%) Operating EBITDA 56 68 (17%) 16 20 (21%) Operating EBITDA margin 31.2% 35.8% (4.6pp) 27.7% 34.2% (6.5pp) In millions of US dollars, except percentages. Domestic gray cement Ready-Mix Aggregates January - January - January - Third Quarter Third Quarter Third Quarter September September September Volume (3%) 2% 5% 12% 6% (17%) Price (USD) (2%) (4%) (4%) (11%) (11%) (25%) Price (local currency) 1% (0%) (1%) (7%) (6%) (21%) Year-over-year percentage variation. In the Rest of CLH, region which includes our operations in Nicaragua, Guatemala and El Salvador, during the third quarter our domestic gray cement and ready-mix volumes increased by 2% and 12%, respectively, while our aggregates volumes declined by 17%, compared to those in the third quarter of 2017. During the first nine months of 2018, our domestic gray cement decreased by 3%, while our ready-mix and aggregates volumes increased by 5% and 6%, respectively, compared to those in the same period of 2017. In Nicaragua, although violence in the country receded, consumer and business confidence has been severely damaged by the socio-political crisis, affecting particularly the tourism and construction sectors. During the quarter, our cement volumes were mainly supported by the continued activity in ongoing road projects from the government. With regards to Guatemala, the residential and industrial-and-commercial sectors were the main drivers of demand during the quarter, supported by vertical-housing projects and shopping malls in Guatemala City. 2018 Third Quarter Results Page 4

OPERATING EBITDA, FREE CASH FLOW AND DEBT RELATED INFORMATION Operating EBITDA and free cash flow January - September Third Quarter 2018 2017 % var 2018 2017 % var Operating earnings before other expenses, net 129 184 (30%) 41 55 (26%) + Depreciation and operating amortization 59 58 19 17 Operating EBITDA 188 242 (22%) 60 72 (17%) - Net financial expense 43 47 14 14 - Capital expenditures for maintenance 26 36 11 13 - Change in working Capital 10 (8) 0 5 - Taxes paid 40 83 15 19 - Other cash items (Net) 32 4 4 2 - Free cash flow discontinued operations 1 4 (2) 1 Free cash flow after maintenance capital exp 35 77 (55%) 16 19 (13%) - Strategic Capital expenditures 0 30 (1) 2 Free cash flow 34 46 (26%) 17 17 3% In millions of US dollars, except percentages. Additionally, we received about 31 million dollars during the third quarter related to the gross proceeds from the sale of our cement-distribution business in Brazil. Free cash flow and the proceeds from the Brazil divestment were mainly used to reduce debt during the quarter. Net debt decreased by 45 million dollars in this period, reaching 811 million. The net-debt-to-EBITDA ratio dropped to 3.1 times, despite the lower EBITDA. Information on Debt Second Third Quarter Third Quarter Quarter 2018 2017 % var 2018 2018 2017 Total debt 1, 2 834 922 895 Currency denomination Short term 24% 16% 23% U.S. dollar 99% 98% Long term 76% 84% 77% Colombian peso 1% 2% Cash and cash equivalents 24 41 (43%) 39 Interest rate Net debt 811 881 (8%) 856 Fixed 60% 65% Net debt / EBITDA 3.1x 2.7x 3.2x Variable 40% 35% In millions of US dollars, except percentages. 1 Includes capital leases, in accordance with International Financial Reporting Standards (IFRS). 2 Represents the consolidated balances of CLH and subsidiaries. 2018 Third Quarter Results Page 5

OPERATING RESULTS Income statement & balance sheet CEMEX Latam Holdings, S.A. and Subsidiaries in thousands of U.S. Dollars, except per share amounts January - September Third Quarter INCOME STATEMENT 2018 2017 % var 2018 2017 % var Net sales 848,520 928,187 (9%) 276,617 301,717 (8%) Cost of sales (502,189) (518,621) 3% (162,791) (172,784) 6% Gross profit 346,331 409,566 (15%) 113,826 128,933 (12%) Operating expenses (217,115) (225,634) 4% (72,765) (73,811) 1% Operating earnings before other expenses, net 129,216 183,932 (30%) 41,061 55,122 (26%) Other expenses, net (704) (6,047) 88% 5,321 (4,584) n/a Operating earnings 128,512 177,885 (28%) 46,382 50,538 (8%) Financial expenses (42,938) (46,592) 8% (13,784) (14,469) 5% Other income (expenses), net 10,589 (1,082) n/a 5,604 7,224 (22%) Net income before income taxes 96,163 130,211 (26%) 38,202 43,293 (12%) Income tax (33,344) (45,155) 26% (9,789) (13,036) 25% Profit of continuing operations 62,819 85,056 (26%) 28,413 30,257 (6%) Discontinued operations (9,383) (5,560) (69%) (8,659) (2,083) (316%) Consolidated net income 53,436 79,496 (33%) 19,754 28,174 (30%) Non-controlling Interest Net Income (186) (288) 35% (107) (99) (8%) Controlling Interest Net Income 53,250 79,208 (33%) 19,647 28,075 (30%) Operating EBITDA 187,739 242,089 (22%) 60,016 72,191 (17%) Earnings of continued operations per share 0.10 0.13 (21%) 0.05 0.05 (6%) Earnings of discontinued operations per share (0.02) (0.01) (69%) (0.02) (0.00) (316%) as of September 30 BALANCE SHEET 2018 2017 % var Total Assets 3,118,344 3,367,493 (7%) Cash and Temporary Investments 23,564 41,401 (43%) Trade Accounts Receivables 107,937 125,287 (14%) Other Receivables 56,064 67,647 (17%) Inventories 79,178 78,236 1% Assets held for sale 0 0 n/a Other Current Assets 21,213 14,929 42% Current Assets 287,956 327,500 (12%) Fixed Assets 1,219,337 1,265,865 (4%) Other Assets 1,611,051 1,774,128 (9%) Total Liabilities 1,570,766 1,816,889 (14%) Liabilities available for sale 0 0 n/a Other Current Liabilities 487,499 501,456 (3%) Current Liabilities 487,499 501,456 (3%) Long-Term Liabilities 1,068,446 1,300,131 (18%) Other Liabilities 14,821 15,302 (3%) Consolidated Stockholders’ Equity 1,547,578 1,550,604 (0%) Non-controlling Interest 5,624 5,146 9% Stockholders’ Equity Attributable to Controlling Interest 1,541,954 1,545,458 (0%) 2018 Third Quarter Results Page 6

OPERATING RESULTS Income statement & balance sheet CEMEX Latam Holdings, S.A. and Subsidiaries in millions of Colombian Pesos in nominal terms, except per share amounts January - September Third Quarter INCOME STATEMENT 2018 2017 % var 2018 2017 % var Net sales 2,448,660 2,732,285 (10%) 818,353 892,419 (8%) Cost of sales (1,449,217) (1,526,655) 5% (481,605) (511,062) 6% Gross profit 999,443 1,205,630 (17%) 336,745 381,357 (12%) Operating expenses (626,550) (664,192) 6% (215,271) (218,316) 1% Operating earnings before other expenses, net 372,893 541,438 (31%) 121,475 163,041 (25%) Other expenses, net (2,033) (17,802) 89% 15,743 (13,560) n/a Operating earnings 370,860 523,636 (29%) 137,217 149,481 (8%) Financial expenses (123,909) (137,151) 10% (40,779) (42,796) 5% Other income (expenses), net 30,557 (3,185) n/a 16,579 21,369 (22%) Net income before income taxes 277,508 383,300 (28%) 113,018 128,054 (12%) Income tax (96,226) (132,923) 28% (28,960) (38,561) 25% Profit of continuing operations 181,282 250,377 (28%) 84,058 89,493 (6%) Discontinued operations (27,078) (16,368) (65%) (25,616) (6,160) (316%) Consolidated net income 154,204 234,011 (34%) 58,442 83,333 (30%) Non-controlling Interest Net Income (535) (847) 37% (317) (292) (9%) Controlling Interest Net Income 153,669 233,164 (34%) 58,126 83,041 (30%) Operating EBITDA 541,776 712,633 (24%) 177,552 213,525 (17%) Earnings of continued operations per share 326 450 (28%) 151 161 (6%) Earnings of discontinued operations per share (49) (29) 65% (46) (11) (316%) as of September 30 BALANCE SHEET 2018 2017 % var Total Assets 9,268,281 9,904,032 (6%) Cash and Temporary Investments 70,035 121,762 (42%) Trade Accounts Receivables 320,807 368,479 (13%) Other Receivables 166,632 198,955 (16%) Inventories 235,333 230,095 2% Assets held for sale 0 0 n/a Other Current Assets 63,050 43,908 44% Current Assets 855,857 963,199 (11%) Fixed Assets 3,624,088 3,722,997 (3%) Other Assets 4,788,336 5,217,836 (8%) Total Liabilities 4,668,600 5,343,596 (13%) Liabilities available for sale 0 0 n/a Other Current Liabilities 1,448,936 1,474,816 (2%) Current Liabilities 1,448,936 1,474,816 (2%) Long-Term Liabilities 3,175,613 3,823,776 (17%) Other Liabilities 44,051 45,004 (2%) Consolidated Stockholders’ Equity 4,599,681 4,560,436 1% Non-controlling Interest 16,716 15,135 10% Stockholders’ Equity Attributable to Controlling Interest 4,582,964 4,545,301 1% 2018 Third Quarter Results Page 7

OPERATING RESULTS Operating Summary per Country in thousands of U.S. dollars Operating EBITDA margin as a percentage of net sales January - September Third Quarter 2018 2017 % var 2018 2017 % var NET SALES Colombia 399,249 432,019 (8%) 134,274 141,501 (5%) Panama 169,412 211,792 (20%) 57,932 70,593 (18%) Costa Rica 111,931 113,732 (2%) 32,999 37,168 (11%) Rest of CLH 180,129 189,243 (5%) 56,128 57,354 (2%) Others and intercompany eliminations (12,201) (18,599) 34% (4,716) (4,899) 4% TOTAL 848,520 928,187 (9%) 276,617 301,717 (8%) GROSS PROFIT Colombia 152,405 159,132 (4%) 53,234 47,812 11% Panama 66,844 100,085 (33%) 22,044 34,530 (36%) Costa Rica 51,503 52,981 (3%) 16,469 17,529 (6%) Rest of CLH 73,957 84,244 (12%) 21,485 24,985 (14%) Others and intercompany eliminations 1,622 13,124 (88%) 594 4,077 (85%) TOTAL 346,331 409,566 (15%) 113,826 128,933 (12%) OPERATING EARNINGS BEFORE OTHER EXPENSES, NET Colombia 51,516 63,506 (19%) 19,050 17,144 11% Panama 39,707 74,593 (47%) 12,644 25,845 (51%) Costa Rica 33,214 36,081 (8%) 10,298 11,581 (11%) Rest of CLH 51,281 63,361 (19%) 14,024 18,096 (23%) Others and intercompany eliminations (46,502) (53,609) 13% (14,955) (17,544) 15% TOTAL 129,216 183,932 (30%) 41,061 55,122 (26%) OPERATING EBITDA Colombia 72,507 82,813 (12%) 26,059 22,448 16% Panama 51,183 87,515 (42%) 16,490 29,688 (44%) Costa Rica 36,832 40,058 (8%) 11,483 13,050 (12%) Rest of CLH 56,185 67,782 (17%) 15,539 19,612 (21%) Others and intercompany eliminations (28,968) (36,079) 20% (9,555) (12,607) 24% TOTAL 187,739 242,089 (22%) 60,016 72,191 (17%) OPERATING EBITDA MARGIN Colombia 18.2% 19.2% 19.4% 15.9% Panama 30.2% 41.3% 28.5% 42.1% Costa Rica 32.9% 35.2% 34.8% 35.1% Rest of CLH 31.2% 35.8% 27.7% 34.2% TOTAL 22.1% 26.1% 21.7% 23.9% 2018 Third Quarter Results Page 8

OPERATING RESULTS Volume Summary Consolidated volume summary Cement and aggregates in thousands of metric tons Ready mix in thousands of cubic meters January - September Third Quarter 2018 2017 % var 2018 2017 % var Total cement volume 1 4,969 5,455 (9%) 1,638 1,812 (10%) Total domestic gray cement volume 4,366 4,757 (8%) 1,462 1,571 (7%) Total ready-mix volume 1,945 2,197 (11%) 658 721 (9%) Total aggregates volume 4,794 5,234 (8%) 1,559 1,695 (8%) 1 Consolidated cement volume includes domestic and export volume of gray cement, white cement, special cement, mortar and clinker. Per-country volume summary January - September Third Quarter Third Quarter 2018 2018 vs. 2017 2018 vs. 2017 vs. Second Quarter 2018 DOMESTIC GRAY CEMENT Colombia (10%) (8%) 7% Panama (20%) (16%) 10% Costa Rica 6% (4%) (20%) Rest of CLH (3%) 2% (3%) READY-MIX Colombia (13%) (11%) 4% Panama (18%) (9%) 36% Costa Rica 10% (6%) (7%) Rest of CLH 5% 12% (13%) AGGREGATES Colombia (13%) (12%) 4% Panama (7%) (13%) 4% Costa Rica 9% 18% 13% Rest of CLH 6% (17%) (66%) 2018 Third Quarter Results Page 9

OPERATING RESULTS Price Summary Variation in U.S. dollars January - September Third Quarter Third Quarter 2018 2018 vs. 2017 2018 vs. 2017 vs. Second Quarter 2018 DOMESTIC GRAY CEMENT Colombia 3% 6% (4%) Panama (1%) (1%) (1%) Costa Rica 2% 3% (2%) Rest of CLH (2%) (4%) (2%) READY-MIX Colombia 2% (0%) (5%) Panama (8%) (9%) 2% Costa Rica 2% 7% 2% Rest of CLH (4%) (11%) (2%) AGGREGATES Colombia 0% 0% (0%) Panama (0%) 9% 10% Costa Rica (13%) (21%) (10%) Rest of CLH (11%) (25%) 0% For Rest of CLH, volume-weighted average prices. Variation in local currency January - September Third Quarter Third Quarter 2018 2018 vs. 2017 2018 vs. 2017 vs. Second Quarter 2018 DOMESTIC GRAY CEMENT Colombia 2% 6% (1%) Panama (1%) (1%) (1%) Costa Rica 2% 3% (1%) Rest of CLH 1% (0%) (1%) READY-MIX Colombia 0% (0%) (2%) Panama (8%) (9%) 2% Costa Rica 2% 8% 3% Rest of CLH (1%) (7%) (0%) AGGREGATES Colombia (2%) 0% 2% Panama (0%) 9% 10% Costa Rica (13%) (21%) (9%) Rest of CLH (6%) (21%) 1% For Rest of CLH, volume-weighted average prices. 2018 Third Quarter Results Page 10

OTHER ACTIVITIES AND INFORMATION Information regarding the Tax Authority special proceeding received by CEMEX Colombia related to the income tax year 2011 On September 2012, the Colombian Tax Authority (the “Tax Authority”) notified CEMEX Colombia an ordinary request for the review of its income tax return for the fiscal year 2011 in connection with the amortization of goodwill related the acquisition of its subsidiary Lomas del Tempisque S.R.L. that was considered tax deductible in such tax return. On October 5, 2012, CEMEX Colombia filed a challenge to the arguments of the proceeding and requested the case to be dismissed. On August 9, 2013, CEMEX Colombia received from the Tax Authority a notice for verification of the income tax return, which was under audit until September 5, 2018, when CEMEX Colombia was notified of a special proceeding by the Tax Authority in which certain deductions included in such tax return of the fiscal year 2011 were rejected. The Tax Authority assessed an increase in the income tax payable by CEMEX Colombia and imposed a penalty for amounts in Colombian Pesos equivalent to approximately $28.5 million and $28.5 million, respectively. CEMEX Colombia has until December 5, 2018 to respond to the proceeding notice; and, in case an official liquidation is issued, CEMEX Colombia intends to appeal the Colombian Tax Authority’s decision and exhaust all legal recourses available, which could take between six and eight years to resolve. If a final resolution adverse to CEMEX Colombia is reached in this matter, CEMEX Colombia will have to pay the amounts determined in the official liquidation, plus the interest caused on these amounts until the payment date. In this stage of the proceedings, as of September 30, 2018, CEMEX Latam is not able to assess the likelihood of an adverse result to this matter; but if adversely resolved, this proceeding could have a material adverse impact on the operating results, liquidity or financial position of CEMEX Latam. 2018 Third Quarter Results Page 11

DEFINITIONS OF TERMS AND DISCLOSURES Methodology for translation and presentation of results INCOME STATEMENT Jan - Sep Third Quarter Under IFRS, CLH reports its consolidated results in its functional currency, which is the US Dollar, by translating the financial statements (Millions of dollars) 2018 2017 2018 2017 of foreign subsidiaries using the corresponding exchange rate at the Sales 26.8 26.1 9.1 9.8 reporting date for the balance sheet and the corresponding exchange Cost of sales and operating (28.1) (32.8) (9.6) (12.3) rates at the end of each month for the income statement. Other expenses, net (0.1) 0.0 0.0 0.0 For the reader’s convenience, Colombian peso amounts for the Interest expense, net and others (0.3) 0.2 (0.2) 0.1 consolidated entity are calculated by converting the US dollar amounts Income (loss) before income tax (1.6) (6.5) (0.6) (2.4) using the closing COP/US$ exchange rate at the reporting date for Income tax 0.3 1.0 0.0 0.3 balance sheet purposes, and the average COP/US$ exchange rate for the Loss of discontinued operations (1.3) (5.6) (0.6) (2.1) corresponding period for income statement purposes. The exchange rates are provided below. Result in sale, withholding and Fx (8.1) - (8.1) - reclassification Per-country/region selected financial information of the income Net loss of discontinued operations (9.4) (5.6) (8.7) (2.1) statement is presented before corporate charges and royalties which are included under “other and intercompany eliminations.” Discontinued operations and assets held for sale Consolidated financial information On September 27, 2018, by means of two of its subsidiaries and after When reference is made to consolidated financial information means receiving the corresponding authorizations by local authorities, CEMEX the financial information of CLH together with its consolidated sold its operations in Brazil as part of binding agreements entered with subsidiaries. Votorantim Cimentos N/NE S.A. (“Votorantim”) on May 24, 2018. The Company’s operations in Brazil comprised mainly a water cement Presentation of financial and operating information distribution terminal located in Manaus, Amazonas state and its Individual information is provided for Colombia, Panama and Costa Rica. operating license. The selling price was approximately US$31 million including working capital adjustments and before withholding taxes. Countries in Rest of CLH include Nicaragua, Guatemala and El Salvador. CEMEX Latam’s operations for its operating segment in Brazil for the nine-month periods ended September 30, 2018 and 2017 are reported net of tax in the single line item “Discontinued Operations”. The following table presents condensed combined information of the income statements of CEMEX Latam discontinued operations in its operating segment in Brazil for the nine-month periods ended September 30, 2018 and 2017: Exchange rates January - September January - September Third Quarter 2018 EoP 2017 EoP 2018 average 2017 average 2018 average 2017 average Colombian peso 2,972.18 2,941.07 2,885.80 2,943.68 2,958.43 2,957.80 Panama balboa 1.00 1.00 1.00 1.00 1.00 1.00 Costa Rica colon 585.80 574.13 572.57 572.71 577.18 575.57 Euro 0.86 1.12 0.85 1.11 0.86 1.12 Amounts provided in units of local currency per US dollar. 2018 Third Quarter Results Page 12

DEFINITIONS OF TERMS AND DISCLOSURES Definition of terms Free cash flow equals operating EBITDA minus net interest expense, maintenance and strategic capital expenditures, change in working capital, taxes paid, and other cash items (net other expenses less proceeds from the disposal of obsolete and/or substantially depleted operating fixed assets that are no longer in operation). Maintenance capital expenditures investments incurred for ensuring CLH’s operational continuity. These include capital expenditures on projects required to replace obsolete assets or maintain current operational levels, and mandatory capital expenditures, which are projects required to comply with governmental regulations or internal policies. Net debt equals total debt minus cash and cash equivalents. Operating EBITDA equals operating earnings before other expenses, net, plus depreciation and operating amortization. pp equals percentage points. EoP equals End of Period. Strategic capital expenditures investments incurred with the purpose of increasing CLH’s profitability. These include capital expenditures on projects designed to increase profitability by expanding capacity, and margin improvement capital expenditures, which are projects designed to increase profitability by reducing costs. Working capital equals operating accounts receivable (including other current assets received as payment in kind) plus historical inventories minus operating payables. 2018 Third Quarter Results Page 13

Exhibit 3

RESULTS 3Q18 October 25, 2018

||Forward looking information This presentation contains forward-looking statements. In some cases, these statements can be identified by the use of forward-looking words such as “may,” “should,” “could,” “anticipate,” “estimate,” “expect,” “plan,” “believe,” “predict,” “potential” and “intend” or other similar words. These forward-looking statements reflect CEMEX Latam Holdings, S.A.’s (“CLH”) current expectations and projections about future events based on CLH’s knowledge of present facts and circumstances and assumptions about future events. These statements necessarily involve risks and uncertainties that could cause actual results to differ materially from CLH’s expectations. Some of the risks, uncertainties and other important factors that could cause results to differ, or that otherwise could have an impact on CLH or its subsidiaries, include, but are not limited to, the cyclical activity of the construction sector; CLH’s exposure to other sectors that impact CLH’s business, such as the energy sector; competition; general political, economic and business conditions in the markets in which CLH operates; the regulatory environment, including environmental, tax, antitrust and acquisition-related rules and regulations; CLH’s ability to satisfy its debt obligations and CEMEX, S.A.B. de C.V.’s (“CEMEX”) ability to satisfy CEMEX’s obligations under its material debt agreements, the indentures that govern CEMEX’s senior secured notes and CEMEX’s other debt instruments; expected refinancing of CEMEX’s existing indebtedness; the impact of CEMEX’s below investment grade debt rating on CLH’s and CEMEX’s cost of capital; CEMEX’s ability to consummate asset sales and fully integrate newly acquired businesses; achieve cost-savings from CLH’s cost-reduction initiatives and implement CLH’s pricing initiatives for CLH’s products; the increasing reliance on information technology infrastructure for CLH’s invoicing, procurement, financial statements and other processes that can adversely affect operations in the event that the infrastructure does not work as intended, experiences technical difficulties or is subjected to cyber-attacks; weather conditions; natural disasters and other unforeseen events; and the other risks and uncertainties described in CLH’s public filings. Readers are urged to read these presentations and carefully consider the risks, uncertainties and other factors that affect CLH’s business. The information contained in these presentations is subject to change without notice, and CLH is not obligated to publicly update or revise forward-looking statements. Unless the context indicates otherwise, all references to pricing initiatives, price increases or decreases, refer to CLH’s prices for CLH’s products. UNLESS OTHERWISE NOTED, ALL CONSOLIDATED FIGURES ARE PRESENTED IN DOLLARS AND ARE BASED ON THE FINANCIAL STATEMENTS OF EACH COUNTRY PREPARED UNDER INTERNATIONAL FINANCIAL REPORTING STANDARDS. Copyright CEMEX Latam Holdings, S.A. and its subsidiaries. 2

||Financial Results Summary Net Sales Operating EBITDA Margin EBITDA (US$M) (US$M) (%) -9% 928 849 -8% 302 -22% -4.0pp 277 -17% 1% -2.2pp 242 26 . 72 . 9% 188. 1% 23 22 60. 7% 21 9M17 9M18 3Q17 3Q18 9M17 9M18 3Q17 3Q18 9M17 9M18 3Q17 3Q18 3

Consolidated Volumes and Prices 9M18 9M17 vs. 3Q18 3Q17 vs. 3Q18 2Q18 vs. Volume -8% -7% 1% Domestic gray Price (USD) 1% 2% -3% cement Price (LtL ) 1% 3% -2% 1 Ready-mix Volume -11% -9% 7% concrete Price (USD) -1% -3% -2% Price (LtL1) -2% -2% 0% Volume -8% -8% 0% Aggregates Price (USD) -3% -2% 3% Price (LtL1) -4% -2% 5% (1) Like-to-like prices adjusted for foreign-exchange fluctuations Cement volumes increased sequentially 1% during 3Q18, driven by improved volumes in Colombia after the elections and in Panama after the strike, partially offset by lower volumes in Costa Rica and Rest of CLH Cement prices during the quarter increased by 3% in local currency and by 2% in U.S. dollar terms, on a year-over-year basis driven by improved prices in Colombia and Costa Rica; our cement prices in Colombia were 6% higher than those of the same quarter of last year 4

||EBITDA Variation 9M18 -22% 242 -56 4 -2 0 1 0 188 EBITDA Vol Price O. Costs Dist SG&A Fx EBITDA 9M17 9M18 26.1% 22.1% -4.0pp EBITDA EBITDA Margin 9M17 Margin 9M18 5

||Net debt reduction 9M18 -71 882 -59 25 811 -31 -6 Net Debt Free Cash Flow Brazil Other Fine in Colombia Net Debt 3 Dec. 17 9M18 Divestment Sep. 18 1 2 (1) Excludes “fine in Colombia” (2) Gross amount (3) Fine imposed by the Colombian Superintendence of Industry and Commerce (SIC), paid on January 5, 2018 and reflected in the “Other cash items” line of the Free Cash Flow. In July 6 2018, CEMEX Colombia filed in the administrative court an annulment and reestablishment of right claim against the decision of the SIC

REGIONAL HIGHLIGHTS 3Q 1 8 Results

Results Highlights Colombia

Colombia –Results Highlights 9M18 9M17 % var 3Q18 3Q17 % var Net Sales 399 432 -8% 134 142 -5% Financial Op. EBITDA Summary 73 83 -12% 26 22 16% US$ Million as % net sales 18.2% 19.2% (1.0pp) 19.4% 15.9% 3.5pp 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement -10% -8% 7% Volume Ready mix -13% -11% 4% Aggregates -13% -12% 4% 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement 2% 6% -1% Price (Local Currency) Ready mix 0% 0% -2% Aggregates -2% 0% 2% Our quarterly EBITDA increased by 16% and EBITDA margin improved by 3.5pp despite lower volumes on a year-over-year basis Our cement volumes increased by 7% sequentially during 3Q18 reflecting the acceleration of industry demand after the elections; our estimated market position slightly improved sequentially during 3Q18 Our EBITDA margin improved by 3.5pp during 3Q18, due to higher prices, lower cement-maintenance costs, and one-off effects that negatively impacted our 3Q17 results, partially offset by higher-freight costs and lower volumes 9

Colombia –Residential Sector During this 4Q18, we expect the residential sector to stabilize, supported by low interest rates, as well as by improvements in consumer confidence and in the intention-to-buy-a-home indicator We estimate that national-cement dispatches to this sector declined in the low-single digits during 3Q18 Social housing construction permits increased in the double digits YTD August along with healthy levels of home inventories The new government recently announced the pillars of their housing strategy in the next four years, with a home-construction-starts target of 1 million in this period, or about 250 thousand per year, a new rent-to-buy program and a new home-improvement program, among other initiatives 10

Colombia –Infrastructure Sector We expect the infrastructure sector to increase in the double-digits during 4Q18; our volumes should continue to be supported by projects under execution Positive performance in this sector during 3Q18 our volumes were driven by the Salitre water-treatment plant and the CETIC Hospital, additionally, we supplied to the new garage of the Cali BRT system and to a group of 210 schools across the country We continued dispatching our products to several 4G projects including Autopista Mar 1, Autopista al Rio Magdalena 2, Bucaramanga-Barranca-Yondó and Bucaramanga-Pamplona We estimate 4G projects to demand 430,000 m3 in total for 2018, of which we already supplied 130,000, and we expect to supply around 30,000 more during 4Q18 11

Results Highlights Panama

Panama –Results Highlights 9M18 9M17 % var 3Q18 3Q17 % var Net Sales 169 212 -20% 58 71 -18% Financial Op. EBITDA Summary 51 88 -42% 16 30 -44% US$ Million as % net sales 30.2% 41.3% (11.1pp) 28.5% 42.1% (13.6pp) 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement -20% -16% 10% Volume Ready mix -18% -9% 36% Aggregates -7% -13% 4% 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement -1% -1% -1% Price (Local Currency) Ready mix -8% -9% 2% Aggregates 0% 9% 10% Our cement volumes improved on a sequential basis by 10% during 3Q18, mainly due to a low comparison base with the previous quarter which was affected by the construction-workers strike Our quarterly cement volumes declined by 16% YoY mainly due to a subdued market demand as well as to a lower market-position YoY; we observed no significant imports during the quarter Our EBITDA margin declined, mainly due to lower sales, higher variable costs—mostly electricity and higher clinker-factor—, a non-recurrent inventory write-off effect, as well as an inventory drawdown effect 13

Panama –Sectors Highlights During 4Q18, ongoing infrastructure projects should provide volume support, particularly the Panama-Northern Corridor, the Transísmica-Road rehabilitation, and the ITSE college Weakness in the residential and industrial-and-commercial sectors expected to continue, inventory continues to be high in the middle-and high-end residential segments, as well as in offices For 2019, the government recently awarded two relevant infrastructure projects. First, the Corredor de las Playas highway with an investment of US$540 million, which is expected to start during 1Q19. And second, the fourth bridge over the canal, with an investment of US$1.4 billion, and which should start construction during 4Q19. We also expect that the third line of the Panama City metro be awarded during 1H19 and start construction during 1Q20 14

Results Highlights Costa Rica

Costa Rica –Results Highlights 9M18 9M17 % var 3Q18 3Q17 % var Net Sales 112 114 -2% 33 37 -11% Financial Op. EBITDA Summary 37 40 -8% 11 13 -12% US$ Million as % net sales 32.9% 35.2% (2.3pp) 34.8% 35.1% (0.3pp) 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement 6% -4% -20% Volume Ready mix 10% -6% -7% Aggregates 9% 18% 13% 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement 2% 3% -1% Price (Local Currency) Ready mix 2% 8% 3% Aggregates -13% -21% -9% We estimate that national-cement-demand declined ~9% during 3Q18, about 2pp of this decline due to a state-workers strike that lowered activity for 21 days in the month of September Our 3Q18 cement volumes outperformed the industry YoY due to an improvement in our estimated market position, however, our estimated position declined during the quarter on a sequential basis due to a new competitor that commissioned a grinding mill in July Our EBITDA margin declined by 0.3pp during 3Q18, higher cement and ready-mix prices were more than offset by lower volumes and a 17% increase in energy costs 16

Costa Rica –Sector Highlights For 4Q18, demand for our products should be supported by projects currently under execution like the wholesale market in the North-Pacific region, the new building for the Parliament, the new Central-Bank building, as well as by the new Coca-Cola plant The government recently announced a plan to reactivate the Costa Rican economy, that includes infrastructure investments for US$4.6 billion, out of which US$3 billion could be spent between 2019 & 2022. The government is ready to deploy US$350 millions of available credit from the Inter-American Development Bank in the short term to start road projects like Ruta 32 Cruce a Río Frío- Limón and Ruta 1 Cañas Limonal 17

Results Highlights Rest of CLH

Rest of CLH –Results Highlights 9M18 9M17 % var 3Q18 3Q17 % var Net Sales 180 189 -5% 56 57 -2% Financial Op. EBITDA Summary 56 68 -17% 16 20 -21% US$ Million as % net sales 31.2% 35.8% (4.6pp) 27.7% 34.2% (6.5pp) 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement -3% 2% -3% Volume Ready mix 5% 12% -13% Aggregates 6% -17% -66% 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement 1% 0% -1% Price (Local Currency) Ready mix -1% -7% 0% Aggregates -6% -21% 1% Our EBITDA declined by 21% during the quarter mainly due to lower results in Nicaragua Our cement and ready-mix volumes increased by 2% and 12%, respectively, higher cement volumes in Guatemala and El Salvador more than offset lower volumes in Nicaragua Our EBITDA margin declined by 6.5pp mainly due to lower volumes in Nicaragua, lower prices in US-dollar terms, higher energy costs in Nicaragua, as well as to higher purchased-clinker costs in Guatemala, partially offset by lower fixed costs and SG&A 19

Nicaragua –Sector Highlights Because of the economic deterioration, we expect our volumes to decrease in the high-single digits during 4Q18 on a sequential basis Although violence in the country receded, consumer and business confidence has been severely damaged by the socio-political crisis, particularly affecting the tourism and construction sectors Our cement volumes during the quarter declined by 13% YoY and by 2% QoQ, our cement volumes were mainly supported by the continued activity in ongoing road projects from the government We reduced our operating expenses in the country by 45%, As we do not foresee the socio-political situation improving in the short term 20

Guatemala –Sector Highlights Our cement and ready-mix volumes increased, by 14% and 19%, respectively, during 3Q18 The residential and industrial-and-commercial sectors were the main drivers of demand during the quarter supported by vertical-housing projects and shopping malls in Guatemala City We expect increased construction activity in coming months, as Guatemala will have general elections for president, congress and mayors in June 2019 21

OTHER INFORMATION 3Q18 Results

Free Cash Flow US$ Million 9M18 9M17 % var 3Q18 3Q17 % var Operating. EBIT EBITDA 188 242 -22% 60 72 -17% - Net financial expense 43 47 14 14 - Maintenance Capex 26 36 11 13 - Change in working cap 10 -8 0 5 - Taxes paid 40 83 15 19 - Other cash items (net) 32 4 4 2 - Free cash flow 1 4 -2 1 discontinued operations Free Cash Flow 35 77 -55% 16 19 -13% After Maintenance Capex - Strategic Capex 0 30 -1 2 Free Cash Flow 34 46 -26% 17 17 3% Free Cash Flow increased by 3% during 3Q18, lower financial expenses, capex, taxes and working capital variation, more than offset the EBITDA decline Additionally, we received ~US$31 million during 3Q18, related to the gross proceeds from the sale of our cement-distribution business in Brazil Free cash flow plus the proceeds from the Brazil divestment mainly used to reduce debt, Net debt decreased by US$45 millions in this period and the net-debt-to-EBITDA ratio dropped to 3.1x 23

Income statement items Controlling interest net income reached US$20 million during 3Q18, US$8 million lower YoY primarily driven by lower gross profit and a negative effect in discontinued operations, partially offset by a positive effect in other expenses, net, as well as lower financial expenses and taxes Other expenses, net, were positive US$5 million include the positive impact from a reversal in a provision of about US$12.5 million related to the “Laserna” case in Colombia, which was resolved in our favor, partially offset by some other provisions made during the quarter Discontinued operations resulted in a loss of US$9 million, mainly due to completion of the Brazil divestment 24

2018 Guidance Volume YoY% Cement Ready - Mix Aggregates Colombia -8% -11% -14% Cement Ready - Mix Aggregates Panama -16% -16% 0% Costa Rica Cement Ready - Mix Aggregates 3% 5% 9% Consolidated volumes: - Cement: -8% - Ready-mix: -10% - Aggregates: -9% Total Capex US$55 M Maintenance Capex US$50 M Strategic Capex US$5 M Consolidated Cash taxes US$70 M 25

Consolidated debt as of September 30, 2018 US$ Million 500 204 130 2018 2020 2023 Type Currency Cost US$ M Banks COP 8.80% 10 Intercompany USD 6ML + 250 bps 130 Intercompany USD 6ML + 255 bps 194 Intercompany USD Fixed 5.65% 500 Average Cost / Total USD 5.41%1 834 (1) Average Cost of USD denominated debt The term “Intercompany” refers to debt with subsidiaries of CEMEX S.A.B. de C.V. US $834 M Total debt 3.1x Net Debt / EBITDA Interest Rate Variable Fixed 26

RESULTS 3Q18 October 25, 2018