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 ï,§ Stock Listing Information NYSE (ADS) Ticker: CX Mexican Stock Exchange Ticker: CEMEXCPO Ratio of CEMEXCPO to CX = 10:1 ï,§ Investor Relations In the United States: + 1 877 7CX NYSE In Mexico: + 52 (81) 8888 4292 E-Mail: ir@cemex.com

Operating and financial highlights January—September Third Quarter    l-t-l    l-t-l 2018 2017 % var % var 2018 2017 % var % var Consolidated cement volume 52,692 51,062 3%    17,987 17,353 4%    Consolidated ready-mix volume 40,067 38,656 4% 13,920 13,220 5% Consolidated aggregates volume 112,593 110,423 2% 39,659 37,659 5% Net sales 10,933 10,218 7% 6% 3,748 3,539 6% 8% Gross profit 3,718 3,507 6% 5% 1,309 1,265 3% 7% as % of net sales 34.0% 34.3% (0.3pp) 34.9% 35.8% (0.9pp) Operating earnings before other 1,330 1,317 1% 3% 490 495 (1%) 2% expenses, net    as % of net sales 12.2% 12.9% (0.7pp) 13.1% 14.0% (0.9pp) Controlling interest net income (loss) 591 916 (36%) 174 289 (40%) Operating EBITDA 1,956 1,949 0% 1% 704 703 0% 2% as % of net sales 17.9% 19.1% (1.2pp) 18.8% 19.9% (1.1pp) Free cash flow after maintenance    504 603 (16%) 390 435 (10%) capital expenditures    Free cash flow 409 522 (22%) 334 411 (19%) Total debt plus perpetual notes 10,636 11,558 (8%) 10,636 11,558 (8%) Earnings (loss) of continuing operations    0.38 0.49 (23%)                0.11                0.19 (45%) per ADS Fully diluted earnings (loss) of    (1) 0.38 0.48 (22%)                0.11                0.19 (44%) continuing operations per ADS    Average ADSs outstanding 1,542.2 1,508.9 2% 1,545.1 1,537.9 0% Employees 42,089 40,263 5%    42,089 40,263 5%     This information does not include discontinued operations. Please see page 15 on this report for additional information. 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-ADS amounts. Average ADSs outstanding are presented in millions.     Please refer to page 13 for end-of quarter CPO-equivalent units outstanding. (1) For the period January-September 2018, the effect of the potential dilutive shares generates anti-dilution; therefore, there is no change between the reported    basic and diluted loss per share.    Consolidated net sales in the third quarter of 2018 reached US$3.7 Operating EBITDA margin decreased by 1.1pp, from 19.9% in the third billion, representing an increase of 6%, or an increase of 8% on a like-to- quarter of 2017 to 18.8% this quarter. like basis for the ongoing operations and adjusting for foreign exchange Other expenses, net, for the quarter were US$48 million, which includes fluctuations, compared with the third quarter of 2017. The like-to-like severance payments and others. increase was due to higher local-currency prices for our products in most of our regions, as well as higher volumes in Mexico, the U.S. and our Foreign exchange results for the quarter was a loss of US$21 million, Europe and Asia, Middle East and Africa regions. mainly due to the fluctuation of the Mexican peso versus the U.S. dollar. Cost of sales as a percentage of net sales increased by 0.9pp during the Controlling interest net income (loss) was an income of US$174 million third quarter of 2018 compared with the same period last year, from in the third quarter of 2018, compared with an income of US$289 million 64.2% to 65.1%. The increase was mainly driven by higher energy costs. in the same quarter of 2017. This lower income primarily reflects a lower gain on financial instruments, a negative variation in foreign exchange Operating expenses as a percentage of net sales remained flat during fluctuations and higher income tax, partially offset by higher operating the third quarter of 2018 compared with the same period last year, at earnings, lower financial expenses and a positive variation in 21.8%. discontinued operations in the U.S. Operating EBITDA remained practically flat at US$704 million during the Total debt plus perpetual notes decreased by US$254 million during the third quarter of 2018 compared with the same period last year, or an quarter. increase of 2% on a like-to-like basis for the ongoing operations and adjusting for foreign-exchange fluctuations. The like-to-like increase was mainly due to higher contributions from Mexico, the U.S., as well as our Europe region. . 2018 Third Quarter Results                Page 2

Operating results Mexico January—September Third Quarter l-t-l l-t-l 2018 2017 % var 2018 2017 % var % var % var Net sales 2,526 2,314 9% 10% 857 782 10% 15% Operating EBITDA 913 868 5% 6% 303 302 0% 5% Operating EBITDA margin 36.2% 37.5% (1.3pp)    35.4% 38.6% (3.2pp)    In millions of US dollars, except percentages. Domestic gray cement Ready-mix Aggregates Year-over-year January—September Third Quarter January—September Third Quarter January—September Third Quarter percentage variation Volume 3% 9% 12% 14% 12% 13% Price (USD) 1% (4%) 7% 2% 6% 5% Price (local currency) 3% 0% 8% 7% 8% 10% In Mexico, our domestic gray cement, ready-mix and aggregates volumes increased by 9%, 14% and 13%, respectively, during the third quarter. During the first nine months of the year, domestic gray cement volumes increased by 3% and both ready-mix and aggregates volumes by 12%, versus the comparable period of 2017. Our quarterly domestic gray cement prices in local currency remained flat year-over-year and decreased by 1% sequentially.    Our increase in volumes during the quarter was mainly driven by the industrial-and-commercial sector, supported by projects in the manufacturing and the hospitality-and-tourism segments, as well as a low base of comparison. The formal residential sector remained a strong driver for cement consumption during the quarter, with favorable housing starts and permits. The self-construction sector moderated its growth during the quarter; however, economic indicators which drive this sector—including job creation, real wages, and remittances—remain solid. United States     January—September Third Quarter l-t-l l-t-l 2018 2017 % var 2018 2017 % var % var % var Net sales 2,843 2,647 7% 9% 999 916 9% 11% Operating EBITDA 476 447 7% 7% 178 160 12% 12% Operating EBITDA margin 16.8% 16.9% (0.1pp)    17.8% 17.4% 0.4pp                In millions of US dollars, except percentages. Domestic gray cement Ready-mix Aggregates Year-over-year January—September Third Quarter January—September Third Quarter January—September Third Quarter percentage variation Volume 7% 7% 9% 10% 4% 8% Price (USD) 3% 3% 2% 3% 4% 3% Price (local currency) 3% 3% 2% 3% 4% 3% In the United States, our domestic gray cement, ready-mix and aggregates volumes increased by 7%, 10% and 8%, respectively, during the third quarter of 2018 on a year-over-year basis. During the first nine months of the year, domestic gray cement, ready-mix and aggregates volumes increased by 7%, 9% and 4%, respectively, on a year-over-year basis. Our cement prices during the quarter, increased by 3% year-over-year and remained stable sequentially.    Our volume growth during the third quarter, was supported by strong demand conditions, despite poor weather in Texas and the mid-South. Residential activity continued to drive the market in the third quarter, with year-to-date September housing starts up 6% year over year. In the industrial-and-commercial sector, construction spending is up 4% year-to-date August, with strength in offices, lodging and commercial activity. Regarding infrastructure, street-and-highway spending has been increasing this year, up 6% year-to-date August, on the back of increased state spending. Contract awards in our key states are growing in excess of the national average, driven by specific state infrastructure funding initiatives. 2018 Third Quarter Results                Page 3

Operating results South, Central America and the Caribbean January—September Third Quarter l-t-l l-t-l 2018 2017 % var 2018 2017 % var % var % var Net sales 1,358 1,405 (3%) (2%) 442 463 (4%) (1%) Operating EBITDA 311 368 (15%) (16%) 97 114 (15%) (14%) Operating EBITDA margin 22.9% 26.2% (3.3pp)    21.9% 24.6% (2.7pp)    In millions of US dollars, except percentages. Domestic gray cement Ready-mix Aggregates Year-over-year January—September Third Quarter January—September Third Quarter January—September Third Quarter percentage variation Volume (2%) (3%) (12%) (10%) (9%) (11%) Price (USD) 2% 2% (2%) (3%) (2%) (1%) Price (local currency) 2% 4% (2%) (2%) (3%) (0%) In our South, Central America and the Caribbean region, our domestic gray cement volumes decreased by 3% during the third quarter and by 2% during the first nine months of 2018, versus the comparable periods of 2017. Cement volumes, on a like-to-like basis including the regional operations of TCL, decreased by 3% and 4% during the third quarter and first nine months of the year, respectively.    In Colombia, during the third quarter, our domestic gray cement and ready-mix volumes decreased by 8% and 11%, respectively, on a year-over-year basis; however, they increased by 7% and 4%, respectively, on a sequential basis. During the first nine months of the year, our domestic gray cement and ready-mix volumes decreased by 10% and 13%, respectively, versus the same period of 2017. The sequential increase in volumes reflects increased activity after the electoral period. Our quarterly cement prices in local-currency-terms increased by 6% on a year-over-year basis. Europe January—September Third Quarter l-t-l l-t-l 2018 2017 % var 2018 2017 % var % var % var Net sales 2,844 2,607 9% 3% 991 948 5% 6% Operating EBITDA 276 265 4% (2%) 135 129 5% 6% Operating EBITDA margin 9.7% 10.2% (0.5pp)    13.6% 13.6% 0.0pp    In millions of US dollars, except percentages. Domestic gray cement Ready-mix Aggregates Year-over-year January—September Third Quarter January—September Third Quarter January—September Third Quarter percentage variation Volume 1% (0%) (1%) 2% (1%) 3% Price (USD) 6% 0% 9% 2% 9% 3% Price (local currency) 1% 1% 3% 4% 4% 4% In the Europe region, our ready-mix and aggregates volumes increased by 2% and 3%, respectively, while our domestic gray cement volumes remained flat during the third quarter of 2018, on a year-over-year basis. During the first nine months of 2018 our domestic gray cement volumes increased by 1%, while both our ready-mix and aggregates volumes decreased by 1%, compared with the same period in the previous year.    In the United Kingdom, our domestic gray cement and ready-mix volumes decreased by 5% and 3%, respectively, while aggregates volumes remained flat during the third quarter of 2018, on a year-over-year basis. During the first nine months of the year, our domestic gray cement, ready-mix and aggregates volumes decreased by 4%, 5% and 2%, respectively, versus the comparable period in 2017. On a like-to-like basis, our cement prices in local currency remained stable during the quarter on a year-over-year basis.    2018 Third Quarter Results                Page 4

Operating results In Spain, our ready-mix and aggregates volumes increased by 31% and 55%, respectively, while our domestic gray cement volumes remained flat during the third quarter and on a year-over-year basis. For the first nine months of the year our domestic gray cement, ready-mix and aggregates volumes increased by 4%, 27% and 26%, respectively, versus the comparable period in 2017. The increase in ready-mix and aggregates volumes reflects in part the introduction of 11 new ready-mix plants and three new aggregates quarries, respectively. Activity in the residential, industrial-and-commercial, and infrastructure sectors continues to be favorable. The residential sector benefited from favorable credit conditions, low interest rates, increase of salaries, job creation and pent-up housing demand.    In Germany, our aggregates volumes increased by 2%, our domestic gray cement volumes remained flat and our ready-mix volumes decreased by 11% during the third quarter of 2018, compared with the same period of last year. During the first nine months of the year, our domestic gray cement volumes increased by 1%, while ready-mix and aggregates volumes decreased by 8% and 2%, respectively, on a year-over-year basis. The business climate for the construction sector remains favorable mainly driven by the infrastructure sector.    In Poland, our domestic gray cement, ready-mix and aggregates volumes during the third quarter of 2018 increased by 7%, 18% and 14%, respectively, versus the comparable period in 2017. During the first nine months of the year, volumes for these three core products increased by 8%. Our cement prices in local-currency terms during the quarter increased by 7% on a year-over-year basis and by 1% sequentially. The increase in cement volumes during the quarter was mainly due to our participation in large infrastructure projects and a strong residential sector. In our operations in France, ready-mix and aggregates volumes increased by 7% and 11%, respectively, during the third quarter of 2018 and on a year-over-year basis. During the first nine months of the year, our ready-mix volumes decreased by 1% while our aggregates volumes increased by 1%. Volume growth during the quarter reflects continued activity in the industrial-and-commercial sector as well as “Grand Paris”-related projects.    Asia, Middle East and Africa January—September Third Quarter l-t-l l-t-l 2018 2017 % var 2018 2017 % var % var % var Net sales 1,087 999 9% 10% 359 346 4% 7% Operating EBITDA 164 170 (4%) (3%) 50 57 (13%) (11%) Operating EBITDA margin 15.0% 17.0% (2.0pp)    13.8% 16.4% (2.6pp)    In millions of US dollars, except percentages. Domestic gray cement Ready-mix Aggregates Year-over-year January—September Third Quarter January—September Third Quarter January—September Third Quarter percentage variation Volume 9% 3% 2% (1%) 1% 0% Price (USD) 1% 4% 6% 2% 4% 0% Price (local currency) 4% 8% 5% 3% 3% 2% Our domestic gray cement volumes in the Asia, Middle East and Africa region during the third quarter and first nine months of the year increased by 3% and 9%, respectively, on a year-over-year basis.    In the Philippines, our domestic gray cement volumes increased by 5% and 10% during the third quarter and the first nine months of the 2018, respectively, versus the comparable periods in the previous year. The increase in volumes during the quarter was supported by continued infrastructure activity and growth in the residential sector.    In Egypt, our domestic gray cement volumes remained flat during the third quarter of 2018 and increased by 11% during the first nine months of the year, versus the comparable periods in the previous year. Year-to-date volume improvement reflects higher participation in the Lower Egypt region. In Israel, our ready-mix and aggregates volumes during the quarter increased by 2% and 5%, respectively. For the first nine months of the year, ready-mix and aggregates volumes increased by 4% and 5%, respectively, on a year-over-year basis.    2018 Third Quarter Results                Page 5

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 1,330 1,317 1% 490 495 (1%)    + Depreciation and operating amortization 626 632    213 208    Operating EBITDA 1,956 1,949 0% 704 703 0% —Net financial expense 493 642 160 203     - Maintenance capital expenditures 290 259 116 105     - Change in working capital 426 200 7 (109)     - Taxes paid 185 203 37 40     - Other cash items (net) 58 47 (6) 26     - Free cash flow discontinued operations (1) (5) —3     Free cash flow after maintenance capital expenditures 504 603 (16%) 390 435 (10%) —Strategic capital expenditures 95 81 56 24     Free cash flow 409 522 (22%) 334 411 (19%) In millions of US dollars, except percentages. During the quarter, free cash flow was mainly used for debt repayment. Our total debt plus perpetual notes during the quarter reflects a favorable foreign exchange conversion effect of US$26 million. Information on debt and perpetual notes    Second                Third Quarter Quarter Third Quarter    2018 2017 % var 2018 2018 2017 Total debt (1) 10,191 11,111 (8%) 10,444    Currency denomination     Short-term 1% 7% 5% US dollar 66% 69% Long-term 99% 93% 95% Euro 27% 23% Perpetual notes 445 446 (0%) 446    Mexican peso 0% 1% Total debt plus perpetual notes 10,636 11,558 (8%) 10,890    Other 8% 7% Cash and cash equivalents 304 449 (32%) 308     Net debt plus perpetual notes 10,332 11,108 (7%) 10,582 Interest rate     Fixed 62% 69% Consolidated funded debt (CFD) (2) 10,047 10,448    10,219     Variable 38% 31% CFD (2) / EBITDA (3) 3.89 3.98    3.96     (3) (4)                Interest coverage 4.33 3.31    4.13                In millions of US dollars, except percentages and ratios.                (1) Includes convertible notes and capital leases, in accordance with International Financial Reporting Standards (IFRS). (2) Consolidated funded debt, in accordance with our contractual obligations under the 2017 Credit Agreement. (3) EBITDA calculated in accordance with IFRS. (4) Interest expense calculated in accordance with our contractual obligations under the 2017 Credit Agreement. 2018 Third Quarter Results                Page 6

Operating results    Consolidated Income Statement & Balance Sheet CEMEX, S.A.B. de C.V. and Subsidiaries (Thousands of U.S. Dollars, except per ADS amounts)    January—September Third Quarter                 like-to-like    like-to-like INCOME STATEMENT 2018 2017 % var % var 2018 2017 % var % var Net sales 10,933,070 10,218,067 7% 6% 3,747,531 3,539,322 6% 8% Cost of sales (7,215,113) (6,711,260) (8%)    (2,438,464) (2,273,842) (7%)    Gross profit 3,717,958 3,506,807 6% 5% 1,309,067 1,265,480 3% 7% Operating expenses (2,387,987) (2,189,837) (9%)    (818,686) (770,475) (6%)    Operating earnings before other expenses, net 1,329,971 1,316,969 1% 3% 490,381 495,005 (1%) 2% Other expenses, net (82,289) 73,278 N/A    (47,761) (68,114) 30%    Operating earnings 1,247,681 1,390,248 (10%) 442,620 426,891 4%    Financial expense (498,938) (804,642) 38% (154,049) (263,229) 41% Other financial income (expense), net 35,094 114,350 (69%) (32,539) 116,044 N/A    Financial income 13,431 13,268 1% 4,002 4,236 (6%)    Results from financial instruments, net 60,078 202,242 (70%) 992 95,355 (99%)    Foreign exchange results 3,657 (60,364) N/A (21,022) 30,927 N/A    Effects of net present value on assets and liabilities and    others, net (42,072) (40,796) (3%) (16,511) (14,474) (14%) Equity in gain (loss) of associates 20,351 20,491 (1%)    8,606 11,194 (23%)    Income (loss) before income tax 804,188 720,447 12% 264,637 290,900 (9%)    Income tax (186,760) 69,727 N/A    (84,997) 27,818 N/A    Profit (loss) of continuing operations 617,428 790,173 (22%) 179,640 318,719 (44%) Discontinued operations 12,049 184,060 (93%)    12,088 (3,700) N/A Consolidated net income (loss) 629,477 974,234 (35%) 191,728 315,019 (39%)    Non-controlling interest net income (loss) 38,589 57,796 (33%)    17,397 25,634 (32%)    Controlling interest net income (loss) 590,888 916,438 (36%)    174,331 289,385 (40%)     Operating EBITDA 1,955,645 1,948,826 0% 1% 703,592 702,767 0% 2% Earnings (loss) of continued operations per ADS 0.38 0.49 (23%) 0.11 0.19 (45%) Earnings (loss) of discontinued operations per ADS 0.01 0.12 (94%)    0.01 (0.00) N/A                As of September 30                BALANCE SHEET 2018 2017 % var                Total assets 28,657,295 29,201,096 (2%)                Cash and cash equivalents 304,442 449,489 (32%)    Trade receivables less allowance for doubtful accounts 1,746,453 1,735,786 1%                Other accounts receivable 305,889 228,942 34%                Inventories, net 1,061,465 991,378 7%                Assets held for sale 97,707 84,533 16%                Other current assets 134,695 130,549 3%     Current assets 3,650,651 3,620,677 1%                Property, machinery and equipment, net 11,562,935 11,831,863 (2%)                Other assets 13,443,710 13,748,556 (2%)    Total liabilities 17,263,441 18,252,079 (5%)    Other current liabilities 4,525,411 4,900,587 (8%)    Current liabilities 4,525,411 4,900,587 (8%) Long-term liabilities 9,422,935 9,632,980 (2%)    Other liabilities 3,315,094 3,718,512 (11%)    Total stockholder’s equity 11,393,855 10,949,016 4%                Non-controlling interest and perpetual instruments 1,565,632 1,489,568 5%                Total controlling interest 9,828,223 9,459,448 4%                2018 Third Quarter Results                Page 7

Operating results    Consolidated Income Statement & Balance Sheet CEMEX, S.A.B. de C.V. and Subsidiaries (Thousands of Mexican Pesos in nominal terms, except per ADS amounts)                January—September Third Quarter INCOME STATEMENT 2018 2017 % var 2018 2017 % var Net sales 207,400,341 192,099,662 8% 70,528,526 63,637,010 11% Cost of sales (136,870,685) (126,171,692) (8%) (45,891,893) (40,883,674) (12%) Gross profit 70,529,657 65,927,971 7% 24,636,633 22,753,336 8% Operating expenses (45,300,114) (41,168,945) (10%) (15,407,664) (13,853,142) (11%) Operating earnings before other expenses, net 25,229,543 24,759,026 2% 9,228,969 8,900,194 4% Other expenses, net (1,561,025) 1,377,636 N/A (898,868) (1,224,695) 27% Operating earnings 23,668,517 26,136,662 (9%) 8,330,100 7,675,499 9% Financial expense (9,464,859) (15,127,274) 37% (2,899,210) (4,732,853) 39% Other financial income (expense), net 665,734 2,149,785 (69%) (612,377) 2,086,473 N/A Financial income 254,793 249,441 2% 75,324 76,159 (1%) Results from financial instruments, net 1,139,675 3,802,146 (70%) 18,669 1,714,474 (99%) Foreign exchange results 69,381 (1,134,847) N/A (395,629) 556,072 N/A Effects of net present value on assets and liabilities and others, net (798,114) (766,956) (4%) (310,740) (260,234) (19%) Equity in gain (loss) of associates 386,052 385,230 0% 161,958 201,269 (20%) Income (loss) before income tax 15,255,445 13,544,402 13% 4,980,472 5,230,388 (5%) Income tax (3,542,839) 1,310,859 N/A (1,599,647) 500,173 N/A Profit (loss) of continuing operations 11,712,606 14,855,261 (21%) 3,380,825 5,730,562 (41%) Discontinued operations 228,570 3,460,334 (93%) 227,501 (66,524) N/A Consolidated net income (loss) 11,941,176 18,315,596 (35%) 3,608,325 5,664,037 (36%) Non-controlling interest net income (loss) 732,028 1,086,570 (33%) 327,412 460,894 (29%) Controlling interest net income (loss) 11,209,148 17,229,026 (35%) 3,280,913 5,203,143 (37%) Operating EBITDA 37,098,585 36,637,922 1% 13,241,603 12,635,754 5% Earnings (loss) of continued operations per ADS 7.15 9.17 (22%) 1.99 3.44 (42%) Earnings (loss) of discontinued operations per ADS 0.15 2.29 (94%) 0.15 (0.04) N/A    As of September 30                2018 2017 % var    BALANCE SHEET    Total assets 536,464,571 532,919,996 1%                Cash and cash equivalents 5,699,155 8,203,166 (31%) Trade receivables less allowance for doubtful accounts 32,693,595 31,678,093 3% Other accounts receivable 5,726,250 4,178,189 37% Inventories, net 19,870,621 18,092,650 10% Assets held for sale 1,829,075 1,542,734 19% Other current assets 2,521,486 2,382,519 6% Current assets 68,340,181 66,077,350 3%                Property, machinery and equipment, net 216,458,137 215,931,498 0%                Other assets 251,666,253 250,911,148 0%                Total liabilities 323,171,612 333,100,448 (3%)    Current liabilities 84,715,692 89,435,718 (5%)    Long-term liabilities 176,397,352 175,801,884 0%                Other liabilities 62,058,568 67,862,846 (9%)    Total stockholders’ equity 213,292,959 199,819,547 7%                Non-controlling interest and perpetual instruments 29,308,632 27,184,614 8%                Total controlling interest 183,984,328 172,634,933 7%                2018 Third Quarter Results                Page 8

Operating results    Operating Summary per Country In thousands of U.S. dollars     January—September Third Quarter    like-to-like    like-to-like 2018 2017 % var % var 2018 2017 % var % var NET SALES Mexico 2,526,238 2,313,894 9% 10% 857,421 782,045 10% 15% U.S.A. 2,843,065 2,646,826 7% 9% 998,688 915,721 9% 11% South, Central America and the Caribbean 1,357,910 1,404,532 (3%) (2%) 442,376 462,626 (4%) (1%) Europe 2,844,134 2,606,998 9% 3% 991,252 947,510 5% 6% Asia, Middle East and Africa 1,087,201 998,639 9% 10% 359,292 345,877 4% 7% Others and intercompany eliminations 274,522 247,177 11% 14% 98,501 85,543 15% 2% TOTAL 10,933,070 10,218,067 7% 6% 3,747,531 3,539,322 6% 8% GROSS PROFIT                Mexico 1,354,580 1,253,738 8% 9% 454,524 438,853 4% 8% U.S.A. 791,676 708,131 12% 12% 289,020 261,130 11% 11% South, Central America and the Caribbean 489,986 536,301 (9%) (8%) 157,495 170,980 (8%) (6%) Europe 737,327 686,248 7% 1% 292,361 284,160 3% 4% Asia, Middle East and Africa 302,266 300,393 1% 2% 95,238 100,950 (6%) (3%) Others and intercompany eliminations 42,122 21,996 92% 92% 20,429 9,407 117% 221% TOTAL 3,717,958 3,506,807 6% 5% 1,309,067 1,265,480 3% 7% OPERATING EARNINGS BEFORE OTHER EXPENSES, NET                Mexico 827,560 778,998 6% 7% 273,933 270,851 1% 6% U.S.A. 244,126 195,238 25% 27% 98,389 83,244 18% 18% South, Central America and the Caribbean 244,986 301,527 (19%) (19%) 75,059 92,407 (19%) (18%) Europe 123,139 120,087 3% (4%) 83,716 77,830 8% 9% Asia, Middle East and Africa 115,886 123,571 (6%) (5%) 33,456 41,462 (19%) (17%) Others and intercompany eliminations (225,725) (202,453) (11%) (2%) (74,172) (70,789) (5%) (9%) TOTAL 1,329,971 1,316,969 1% 3% 490,381 495,005 (1%) 2% 2018 Third Quarter Results                Page 9

Operating results    Operating Summary per Country EBITDA in thousands of U.S. dollars. EBITDA margin as a percentage of net sales. January—September Third Quarter    like-to-like like-to-like OPERATING EBITDA 2018 2017 % var % var 2018 2017 % var % var Mexico 913,289 868,357 5% 6% 303,353 301,895 0% 5% U.S.A. 476,239 446,668 7% 7% 178,199 159,629 12% 12% South, Central America and the Caribbean 310,984 367,936 (15%) (16%) 97,028 113,823 (15%) (14%) Europe 275,718 264,676 4% (2%) 134,508 128,686 5% 6% Asia, Middle East and Africa 163,563 169,768 (4%) (3%) 49,537 56,852 (13%) (11%) Others and intercompany eliminations (184,147) (168,579) (9%) 2% (59,033) (58,119) (2%) (6%) TOTAL 1,955,645 1,948,826 0% 1% 703,592 702,767 0% 2% OPERATING EBITDA MARGIN                Mexico 36.2% 37.5%    35.4% 38.6%    U.S.A. 16.8% 16.9% 17.8% 17.4% South, Central America and the Caribbean 22.9% 26.2% 21.9% 24.6% Europe 9.7% 10.2% 13.6% 13.6% Asia, Middle East and Africa 15.0% 17.0%    13.8% 16.4%    TOTAL 17.9% 19.1%    18.8% 19.9%                2018 Third Quarter Results                Page 10

Operating results    Volume Summary Consolidated volume summary    Cement and aggregates: Thousands of metric tons.    Ready-mix: Thousands of cubic meters.     January —September    Third Quarter 2018 2017 % var 2018 2017 % var Consolidated cement volume (1) 52,692 51,062 3% 17,987 17,353 4% Consolidated ready-mix volume 40,067 38,656 4% 13,920 13,220 5% Consolidated aggregates volume 112,593 110,423 2% 39,659 37,659 5% Per-country volume summary                January—September Third Quarter Third Quarter 2018 vs. DOMESTIC GRAY CEMENT VOLUME 2018 vs. 2017 2018 vs. 2017 Second Quarter 2018 Mexico 3%    9%    (4%) U.S.A. 7% 7% 0% South, Central America and the Caribbean (2%) (3%) (4%) Europe 1% (0%) (5%) Asia, Middle East and Africa 9%    3%    3%    READY-MIX VOLUME                Mexico 12%     14%    (0%) U.S.A. 9% 10% 1% South, Central America and the Caribbean (12%) (10%) 4% Europe (1%) 2% (3%) Asia, Middle East and Africa 2%    (1%)    5%    AGGREGATES VOLUME                Mexico 12%    13%    3% U.S.A. 4% 8% 1% South, Central America and the Caribbean (9%) (11%) (5%) Europe (1%) 3% (2%) Asia, Middle East and Africa 1%    0%    4%    (1) Consolidated cement volume includes domestic and export volume of gray cement, white cement, special cement, mortar and clinker.    2018 Third Quarter Results                Page 11

Operating results    Price Summary Variation in U.S. Dollars                January—September Third Quarter Third Quarter 2018 vs. DOMESTIC GRAY CEMENT PRICE 2018 vs. 2017 2018 vs. 2017 Second Quarter 2018 Mexico 1%    (4%)    3% U.S.A. 3% 3% (0%) South, Central America and the Caribbean (*) 2% 2% (1%) Europe (*) 6% 0% (3%) Asia, Middle East and Africa (*) 1%    4%    (2%) READY-MIX PRICE    Mexico 7%     2%    4% U.S.A. 2% 3% 2% South, Central America and the Caribbean (*) (2%) (3%) (1%) Europe (*) 9% 2% (1%) Asia, Middle East and Africa (*) 6%    2%    (3%) AGGREGATES PRICE                Mexico 6%     5%    3% U.S.A. 4% 3% 1% South, Central America and the Caribbean (*) (2%) (1%) 4% Europe (*) 9% 3% (2%) Asia, Middle East and Africa (*) 4%    0%    (1%) Variation in Local Currency                January—September Third Quarter Third Quarter 2018 vs. DOMESTIC GRAY CEMENT PRICE 2018 vs. 2017 2018 vs. 2017 Second Quarter 2018 Mexico 3%    0%    (1%) U.S.A. 3% 3% (0%) South, Central America and the Caribbean (*) 2% 4% 1% Europe (*) 1% 1% (1%) Asia, Middle East and Africa (*) 4%    8%    (0%) READY-MIX PRICE    Mexico 8%     7%    1% U.S.A. 2% 3% 2% South, Central America and the Caribbean (*) (2%) (2%) 1% Europe (*) 3% 4% 1% Asia, Middle East and Africa (*) 5%    3%    (3%) AGGREGATES PRICE                Mexico 8%     10%    (1%) U.S.A. 4% 3% 1% South, Central America and the Caribbean (*) (3%) (0%) 6% Europe (*) 4% 4% (0%) Asia, Middle East and Africa (*) 3%    2%    (0%) (*) Volume weighted-average price. 2018 Third Quarter Results                Page 12

Other information     Derivative instruments The derivative following instrument table shows and the the aggregate notional fair amount market for value each for type all of of presented CEMEX’s derivative . instruments as of the last day of each quarter                2018                Third Quarter    2017    Second    2018 Quarter    Millions USD of Notional Amount Value Fair Notional Amount Value Fair    Notional Amount Value Fair    Exchange rate 1,244 (33) 1,062 (27) 1,247 42 derivatives(1) Equity related 111 23 168 (34) 168 31 derivatives(2)(5) Interest rate 1,132 12 142 21 1,132 6 swaps(3) Fuel 47 13 74 12 54 20 derivatives(4) 2,534 15 1,446 (28) 2,601 99 (1) Exchange rate derivatives are used to manage currency exposures that arise from the regular operations and from forecasted transactions. (2) Equity derivatives related to options on the Parent Company’s own shares and to forwards, net of cash collateral, over the shares of Grupo Cementos de Chihuahua, S.A.B. de C.V. (3) As of September 30, 2017, includes Interest-rate swap derivatives related to our long-term energy contracts. In addition, as of September 30, 2018, includes interest-rate swap instruments related to bank loans with a nominal amount of US$1,000 million. (4) Forward contracts negotiated to hedge the price of the fuel consumed in certain operations. (5) As required by IFRS, the equity related derivatives fair market value as of September 30, 2018 and 2017 includes a liability of US$8 million and of US$37 million, respectively, relating to an embedded derivative in CEMEX’s mandatorily convertible securities. instruments Under IFRS, companies on the balance are required sheet to as recognize assets or all    derivative liabilities, financial at their estimated recorded in fair the market income value, statement, with changes except in such when fair transactions market values are entered the fair into market for cash value -flow of -hedging the related purposes, derivative in which instruments case changes are in the recognized inverse temporarily effects of the in equity underlying and then hedged reclassified items flow into through earnings the as hedges, income in statement, which case and/or changes transactions in fair value related are recorded to net investment directly in equity the income as part statement of the currency only upon translation disposal effect, of the and net are investment reclassified . As to of September recognition of 30, its    derivatives 2018, in connection portfolio, CEMEX with recognized the fair increases market value in its assets liability and of liabilities US$8 million resulting corresponding in a net asset to of    an US $embedded 15 million, including derivative a debt related agreements, to our mandatorily is presented convertible net of securities, the assets which associated according with to the our derivative instruments. Equity-related information One expressed CEMEX in ADS CPO represents terms ten CEMEX CPOs. The following amounts are Beginning-of-quarter CPO-equivalent units outstanding 15,104,658,356    Stock-based compensation 29,718,279 End-of-quarter CPO-equivalent units outstanding 15,134,376,635    Outstanding    units equal total CEMEX CPO-equivalent units less CPOs held in subsidiaries, which as of September 30, 2018 were 20,541,277. upon CEMEX conversion, also has outstanding will increase mandatorily the number convertible of CPOs securities outstanding which, by approximately 236 million in 2019, subject to antidilution adjustments. Newly issued IFRS effective in 2018 IFRS 9”)    9, Financial instruments: classification and measurement (“IFRS IFRS measurement 9 sets forth of financial the guidance assets and relating liabilities, to the the classification accounting    and for credits, expected as credit well losses as the of requirements financial assets for and hedge commitments accounting; to and extend will (“IAS replace 39”) IAS . IFRS 39, 9    Financial was adopted instruments: beginning    recognition January 1, 2018 and on measurement prospective categories basis. Among for financial other aspects, assets of: IFRS 1) amortized 9 implemented cost, that the will classification significantly 2) comprise fair value IAS39 through held other to maturity comprehensive and loans income, and receivables similar to categories; IAS 39 held to with maturity the same category; IAS 39 and definition 3) fair .value The adoption through the of income such classification statement categories results and    did financial not have situation any. significant effect on CEMEX’s operating In losses, addition, impairment under the losses new impairment for the entire model lifetime based of on financial expected assets, credit recognition, including trade and at accounts each subsequent receivable, reporting are recognized period, even on in initial the absence considering of for a credit their measurement event or if the past loss events has not and    yet current been conditions, incurred, as In well this as regard, reasonable CEMEX and implemented supportable forecasts an expected affecting credit collectability loss model . performance, applicable to its as trade well as accounts the credit receivable risk and that expected considers developments the historical for each 1, 2018 group related of customers to the new .. The expected effects credit for adoption loss model of IFRS represented 9 on January an increase approximately in the $ allowance 520 million for pesos doubtful recognized accounts against as of January equity.    1, 2018 of accounting In connection categories with hedge of cash accounting, flow hedge, IFRS fair 9 maintains value hedge the same and hedge hedging of a recognizing net investment the ineffective established portion in IAS of 39, a cash as well flow as hedge the requirement immediately of in hedging the income transaction statement are. more Nonetheless, flexible. The the adoption requirements of the new to qualify hedging a operating accounting results requirements and financial did not situation have any . significant effect on CEMEX’s 2018 Third Quarter Results                Page 13

Other information     IFRS 15, Revenues from contracts with customers (“IFRS 15”) Under promised IFRS goods 15, an or services entity recognizes to customers revenue in an    to amount depict that the reflects transfer the of those consideration goods or to services, which the identifying: entity expects a) the to contract(s) be entitled with in exchange a customer for (agreement different performance that creates obligations enforceable (promises) rights and in    obligations); the contract b)    and the account consideration for those an entity separately; expects c) the to be transaction entitled price in exchange (amount    for of transferring transaction price promised to each goods performance or services); obligation d) the based distribution on the relative of the stand-alone recognizing revenue selling prices when of (or    each as) the distinct entity good satisfies or service; a performance and e) obligation customer. A by performance transferring control obligation of a may promised be satisfied good at or a service point in to time the (typically services and for construction the sale of goods) contracts) or .over CEMEX time adopted (typically IFRS for 15    the on January sale of 1, on 2018, its operating using the results retrospective and financial approach, situation. without    any significant effects Among apply to other CEMEX minor refer effects, to: a) several the main reclassifications changes under that IFRS are required 15 as they to comply b) rebates with and/or IFRS 15 discounts new accounts offered in the to customers statement in of a financial sale transaction position; that transaction are redeemable are considered by the separate customer performance in a subsequent obligations, purchase rather than allocated future to costs, these and promises a portion should of the be deferred sale price to of revenue such transaction until the promise customers is through redeemed their or purchases expires; under and c) loyalty awards programs (points) that offered are later to redeemable obligations, rather for goods than or future services, costs, also and represent a portion separate of the performance sale price of such revenue transactions until the points allocated are redeemed to these or points expire. should These    be reclassifications deferred to and adjustments were not material. Considering modified certain the amounts retrospective of the approach, comparative the financial adoption statements of IFRS for 15 the nine-month period ended September 30, 2017, as follows: SELECTED INFORMATION INCOME STATEMENT    (Millions of pesos) Jan-Sep Third Quarter Revenues, original 192,594.5 63,812.4 IFRS 15 adoption (5.2) 1.6 Discontinued operations (489.6) (177.0) Revenues, as reported 192,099.7 63,637.0 INFORMATION SELECTED As of September 30, 2017 BALANCE SHEET Other non- Total Customers, Other current current stockholders’ (Millions of pesos) net liabilities liabilities equity Balance, original 31,566.3 89,322.5 67,864.2 199,819.5 IFRS 15 adoption 111.8 113.2 (1.4) 0.1 reported Balance, as 31,678.1 89,435.7 67,862.8 199,819.6 Newly issued IFRS effective in 2019 IFRS 16, Leases (“IFRS 16”) to IFRS the 16 lessee defines the leases right as to any use contract an asset or for part a period of a contract of time that in exchange conveys for throughout consideration that period. and the In lessee summary, directs IFRS the 16 use introduces of the identified a single lessee asset a accounting term of more model, than and 12 requires months, a lessee unless to the recognize, underlying for asset all leases is of with low corresponding value, assets for financial the right-of-use liability, representing the underlying the NPV asset of estimated against a model lease payments in which a    under lessee recognizes the contract, amortization with a single of the income right-of-use statement asset and statement interest of on financial the lease position, liability. or A disclose lessee shall in the present notes, either right-of-use in the from assets other separately liabilities. from IFRS other 16 assets, is effective as well beginning as, lease January liabilities 1, separately 2019 and will accounting. supersede    all current standards and interpretations related to lease As main of outstanding September 30, lease 2018, contracts CEMEX and has other concluded contracts the inventory that may of have its embedded relevant characteristics the use of an of    asset, such contracts including (types an assessment of assets, of committed the most payments, quantification maturity of the dates, required renewal adjustments clauses, for etc. the), proper and is recognition finalizing the of the liabilities, assets considering for the “right-of-use” the exemptions and provided the corresponding by the standard, financial aiming adoption to adopt IFRS is practicable. 16 on January Based 1, on 2019 its retrospectively preliminary assessment to the extent as of such the reporting its outstanding date, CEMEX operating considers leases would that upon be recognized adoption of in IFRS the 16, statement most of amortization of financial position, and interest. increasing CEMEX    assets does not and expect liabilities, any breach as well of its as effects. contractual    obligations (financial restrictions) due to the adoption Forward contracts on the stock price of GCC stock On September price of Grupo 21, 2018, Cementos CEMEX de amended Chihuahua, the forward S.A.B. de contracts C.V. (“GCC”), on the in order GCC, which to unwind represent 34% of approximately its position, equivalent 3.2% of the to equity 10.6 million capital shares of GCC. of As this a amendment, result, CEMEX CEMEX received retains approximately a position under US$13 its million forward in cash. contracts, After which shares continues of GCC, which to be represent payable in approximately cash, over approximately 6.3% of the equity 20.9 million capital of forward GCC. contracts Additionally, with    during the purpose October of extending 2018, CEMEX the original amended tenor    these by an may additional be unwound 12 months. earlier The at transactions CEMEX’s option. now mature in March 2020 but through CEMEX continues CAMCEM, to S. have A. de an C.V. approximate , an entity that 20% owns indirect a majority interest interest in GCC in GCC and in which CEMEX has a direct interest. 2018 Third Quarter Results                Page 14

Other information    Discontinued operations and other disposal groups Discontinued operations On receiving September the corresponding 27, 2018, by authorizations means of two of by its local subsidiaries authorities, and CEMEX after with sold its Votorantim operations Cimentos in Brazil N/NE as part S. A. of (“Votorantim”) binding agreements on May entered 24, 2018. into    The distribution Company’s terminal operations located in Brazil, in Manaus, comprised Amazonas mainly of a state water    and cement its operating including working license. The capital selling adjustments price was and approximately before withholding US$31 million taxes. month CEMEX’s periods operations ended for September its operating 30, 2018 segment and 2017 in Brazil are reported for the net nine- of tax withholding in the single taxes and line the item reclassification “Discontinued of currency operations” translation and include results accrued in equity. On regulators, June 30, one    2017, of its subsidiaries CEMEX announced in the U.S.    closed that after the divestment approval of from its and Pacific ready Northwest mix concrete Materials operations Business consisting in Oregon of and aggregates, Washington asphalt to Cadman subsidiary Materials, of HeidelbergCement Inc., part of Group, Lehigh Hanson, for approximately Inc. and the US $U. 150 S. Materials million. Considering Business, their the operations disposal for of the the six-month entire Pacific period Northwest until their disposal statements on for June the 30, nine-month 2017, included period    in ended CEMEX’s September comparative 30, 2017 income were reclassified net of tax to the single line item “Discontinued operations.” in On the November United States 28, 2016, signed CEMEX a definitive announced agreement that one to divest of its its subsidiaries Concrete the Reinforced United Pipe States Manufacturing to Quikrete Business Holdings, (“Concrete Inc. Pipe (“Quikrete”) Business”) for in approximately contingent consideration US$500 based million on plus future an performance. additional US On$ January 40 million 31, approval 2017, after from the regulators, satisfaction CEMEX of certain announced conditions the closing precedent of the including sale to disposal Quikrete    of according the entire to the Concrete agreed Pipe upon Business, price conditions. their operations Considering for the the one-month comparative    period income ended statements January for 31, the 2017, nine-month included period in CEMEX’s ended September “Discontinued 30, operations. 2017 were” reclassified CEMEX determined net of tax a net to the gain single on disposal line item of January these assets 2017    for as part approximately of discontinued US$148 operations, million recognized which included during a proportional allocation of goodwill for approximately US$260 million. The income following statements table of presents CEMEX condensed discontinued combined operations information mainly: of a) the the 2018 operating and 2017; segment b) the in Brazil Concrete for the Pipe nine-month Business for periods the one-month ended June period 30, for ended the January six-month 31, period 2017; and ended c) the June Pacific 30, 2017: Northwest    Materials Business INCOME STATEMENT Jan-Sep Third Quarter (Millions of Mexican pesos) 2018 2017 2018 2017 Sales 504 2,044 167 175 Cost of sales and operating (496) (2,064) (167) (194) Other expenses, net (1) 14 0 0 Interest expense, net and others (4) 0 (2) (2) Income (loss) before income tax 3 (6) (2) (21) Income tax (6) (1) (3) (0) Net income (loss) (3) (7) (5) (21) Non controlling interest net income                Controlling interest net income (3) (7) (5) (21) Net gain on sale 232 3,467 233 (46) Discontinued operations 229 3,460 228 (67) Other    disposal groups or Other line disposal of business groups and, do due not to represent the remaining the disposal ongoing of activities an entire and sector the consolidated relative size, by are CEMEX not considered line-by-line discontinued in the income operations statement and until were the disposal date. The main disposal groups are as follows: in On the September United States 12, 2016, signed CEMEX a definitive announced agreement that one for of its the subsidiaries sale of its Eagle Fairborn, Materials Ohio cement Inc. (“Eagle plant and Materials”) cement terminal for approximately in Columbus,    US Ohio $400 to million. approximately Fairborn 730    plant thousand has tons. an annual On February production 10, 2017, capacity CEMEX of announced divestment of that these such assets. subsidiary CEMEX’s in comparative the United income States statement closed the for operations the nine-month of the    period Fairborn ended cement September plant and 30, the    2017, Columbus include cement the their terminal disposal consolidated in February line-by-line 10, 2017. for CEMEX the period determined from January a net gain 1 until on during disposal February of these 2017 assets as part for approximately of Other expenses, US$188 net, million which    recognized included a proportional allocation of goodwill for approximately US$211 million. The information following of    table the net presents assets sold selected to Eagle combined Materials income for the statements period in 2017 until their disposal in February 10: SELECTED INFORMATION Jan-Sep Third Quarter (Millions of Mexican pesos) 2018                2017 2018 2017 Sales—                86                — Cost of sales and operating    Expenses—(71)                — Operating earnings before other expenses, net—15 — 2018 Third Quarter Results                Page 15

Definitions of terms and disclosures    Methodology for translation, consolidation, and presentation of results Under IFRS, beginning January 1, 2008, CEMEX translates the financial statements of foreign subsidiaries using exchange rates at the reporting date for the balance sheet and the exchange rates at the end of each month for the income statement. CEMEX reports its consolidated results in Mexican pesos.    For the reader’s convenience, beginning June 30, 2008, US dollar amounts for the consolidated entity are calculated by converting the nominal Mexican peso amounts at the end of each quarter using the average MXN/US$ exchange rate for each quarter, provided below. Breakdown of regions The South, Central America and the Caribbean region includes CEMEX’s operations in Argentina, Bahamas, Brazil, Colombia, Costa Rica, the Dominican Republic, El Salvador, Guatemala, Haiti, Jamaica, Trinidad & Tobago, Barbados, Nicaragua, Panama, Peru, and Puerto Rico, as well as trading operations in the Caribbean region.    Europe includes operations in Spain, Croatia, the Czech Republic, France, Germany, Latvia, Poland, and the United Kingdom, as well as trading operations in several Nordic countries.    The Asia, Middle East and Africa region includes operations in the United Arab Emirates, Egypt, Israel and the Philippines. 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 and coupon payments on our perpetual notes). l-t-l % var percentage variations adjusted for investments/divestments and currency fluctuations.     Maintenance capital expenditures investments incurred for the purpose of ensuring the company’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 company policies. Net debt equals total debt (debt plus convertible bonds and financial leases) minus cash and cash equivalents. Operating EBITDA equals operating earnings before other expenses, net, plus depreciation and operating amortization. pp equals percentage points Prices all references to pricing initiatives, price increases or decreases, refer to our prices for our products Strategic capital expenditures investments incurred with the purpose of increasing the company’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. % var percentage variation    Earnings per ADS Please refer to page 2 for the number of average ADSs outstanding used for the calculation of earnings per ADS. According to the IAS 33 Earnings per share, the weighted-average number of common shares outstanding is determined considering the number of days during the accounting period in which the shares have been outstanding, including shares derived from corporate events that have modified the stockholder’s equity structure during the period, such as increases in the number of shares by a public offering and the distribution of shares from stock dividends or recapitalizations of retained earnings and the potential diluted shares (Stock options, Restricted Stock Options and Mandatory Convertible Shares). The shares issued because of share dividends, recapitalizations and potential diluted shares are considered as issued at the beginning of the period. Exchange rates January—September Third Quarter Third Quarter 2018 2017 2018 2017 2018 2017 Average Average Average Average End of period End of period Mexican peso 18.97 18.80 18.82 17.98 18.72 18.25 Euro 0.8386 0.8939 0.8576 0.8463 0.8616 0.8464 British pound 0.7413 0.7783 0.7657 0.7606 0.7672 0.7464 Amounts provided in units of local currency per US dollar.    2018 Third Quarter Results                Page 16

Exhibit 3

2018 Third Quarter Results Exupery International School and Kindergarten, Latvia

This presentation contains forward-looking statements within the meaning of the U.S. federal securities laws. CEMEX, S.A.B. de C.V. and its direct and indirect subsidiaries (“CEMEX”) intends, but are not limited to, these forward-looking statements to be covered by the safe harbor provisions for forward-looking statements in the U.S. federal securities laws. 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, and in particular in the case of CEMEX’s new plan, “A Stronger CEMEX”, reflect CEMEX’s current expectations and projections about future events based on CEMEX’s knowledge of present facts and circumstances and assumptions about future events, as well as CEMEX’s current plans based on such facts and circumstances. These statements necessarily involve risks and uncertainties that could cause actual results to differ materially from CEMEX’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 CEMEX or its subsidiaries, include, but are not limited to the cyclical activity of the construction sector; CEMEX’s exposure to other sectors that impact its business, such as, but not limited to, the energy sector; competition; general political, economic and business conditions in the markets in which CEMEX operates or that affects its operations and any significant economic, political or social developments in those markets, including any nationalization or privatization of any assets or operations; the regulatory environment, including environmental, tax, antitrust and acquisition-related rules and regulations; CEMEX’s ability to satisfy its obligations under CEMEX’s material debt agreements, the indentures that govern CEMEX’s outstanding senior secured notes and CEMEX’s other debt instruments; the impact of CEMEX’s below investment grade debt rating on its cost of capital; CEMEX’s ability to consummate asset sales, fully integrate newly acquired businesses, achieve cost-savings from its cost-reduction initiatives and implement its global pricing initiatives for CEMEX’s products, including CEMEX’s “A Stronger CEMEX” plan; the increasing reliance on information technology infrastructure for CEMEX’s operations, sales in general, sales invoicing, procurement, financial statements and other processes that can adversely affect CEMEX’s sales and operations in the event that the infrastructure does not work as intended, experiences technical difficulties or is subjected to cyber-attacks; weather conditions; trade barriers, including tariffs or import taxes and changes in existing trade policies or changes to, or withdrawals from, free trade agreements; terrorist and organized criminal activities as well as geopolitical events; natural disasters and other unforeseen events; and the other risks and uncertainties described in CEMEX’s public filings. Readers are urged to read these presentations and carefully consider the risks, uncertainties and other factors that affect CEMEX’s business. The information contained in these presentations is subject to change without notice, and CEMEX is not obligated to publicly update or revise forward-looking statements. CEMEX’s “A Stronger CEMEX” plan is designed based on CEMEX’s current beliefs and expectations. Readers should review future reports filed by CEMEX with the U.S. Securities and Exchange Commission. Unless the context indicates otherwise, all references to pricing initiatives, price increases or decreases, refer to CEMEX’s prices for CEMEX’s products. . UNLESS OTHERWISE NOTED, ALL FIGURES ARE PRESENTED IN DOLLARS, BASED ON INTERNATIONAL FINANCIAL REPORTING STANDARDS, AS APPLICABLE Copyright CEMEX, S.A.B. de C.V. and its subsidiaries 2

3Q18 net sales and EBITDA increased by 8% and 2%, respectively, on a like-to-like basis EBITDA variation Quarterly consolidated volumes for 0% cement, ready-mix and aggregates +2% increased by 4%, 5% and 5%, 113 respectively, on a like-to-like basis Quarterly consolidated cement, ready- 63 703 718 704 mix and aggregates prices increased by 138 23 3%, 4% and 4%, respectively, from 3Q17 15 levels in local-currency terms During 3Q18, operating EBITDA margin declined by 1.1pp; the favorable impact of higher volumes and prices was more than offset by higher costs in energy, logistics and raw materials in our ready-mix operations 3Q17 Vol. Price Var. cost Fixed 3Q18 l-t-l FX 3Q18 & distr. cost & other Millions of U.S. dollars 3

Free cash flow conversion rate1 reached 55% during 3Q18 Free cash flow 704 160 6 390 116 7 37 334 56 EBITDA Net financial Maint. WC Taxes Other FCF after Strategic FCF 3Q18 3Q18 expense CapEx maint. CapEx CapEx Millions of U.S. dollars 1 Free cash flow conversion rate = free cash flow after maintenance capital expenditures / EBITDA 4

Third Quarter 2018 • Regional Highlights Therapeutic pools for the school La Esperanza, Puerto Rico

Mexico l-t-l l-t-l Operating EBITDA increased by 5%, on a like- 9M18 9M17 % var % var 3Q18 3Q17 % var % var    Net Sales 2,526 2,314 9% 10% 857 782 10% 15% to-like basis during 3Q18; operating EBITDA margin declined by 3.2pp, mainly due to higher Op. EBITDA 913 868 5% 6% 303 302 0% 5% fuel and transportation costs, increased costs in raw materials in our cement and ready-mix as % net sales 36.2% 37.5% (1.3pp) 35.4% 38.6% (3.2pp) businesses, as well as a product-mix effect Millions of U.S. dollars Domestic gray cement, ready-mix and 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 aggregates volumes increased by 9%, 14% Cement 3% 9% (4%) and 13%, respectively, during the quarter Volume Ready mix 12% 14% (0%) Our ready-mix and aggregates prices in local-Aggregates 12% 13% 3% currency terms increased by 7% and 10%, respectively, during the quarter 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 The industrial-and-commercial sector was the main driver for cement consumption during the Cement 3% 0% (1%) quarter, supported by activity in manufacturing Price (LC) Ready mix 8% 7% 1% and the hospitality-and-tourism segment Aggregates 8% 10% (1%) The formal residential sector also contributed to cement demand with solid year-to-date housing starts and permits 6

United States l-t-l l-t-l 9M18 9M17 % var % var 3Q18 3Q17 % var % var EBITDA margin increased by 0.4pp, mainly due to robust volumes and pricing Net Sales 2,843 2,647 7% 9% 999 916 9% 11% Op. EBITDA 476 447 7% 7% 178 160 12% 12% Domestic gray cement, ready-mix and aggregates volumes increased 7%, 10% and as % net sales 16.8% 16.9% (0.1pp) 17.8% 17.4% 0.4pp 8%, respectively, during the quarter driven by Millions of U.S. dollars the residential and infrastructure sectors 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Quarterly prices for our three core products    Cement 7% 7% 0% increased by 3% on a year-over-year basis Volume Ready mix 9% 10% 1% Residential activity continued to drive Aggregates 4% 8% 1% demand during the quarter; housing starts increased 6% year-to-date September In the industrial-and-commercial sector, 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Cement 3% 3% (0%) construction spending increased 4% year-to-date August, with strength in offices, lodging Price (LC) Ready mix 2% 3% 2% and commercial activity Aggregates 4% 3% 1% 7

South, Central America and the Caribbean l-t-l l-t-l 9M18 9M17 % var % var 3Q18 3Q17 % var % var Operating EBITDA for the region declined by 14% on a like-to-like basis with a margin Net Sales 1,358 1,405 (3%) (2%) 442 463 (4%) (1%) decline of 2.7pp; the decline in margin reflects Op. EBITDA 311 368 (15%) (16%) 97 114 (15%) (14%) lower regional volumes, higher fuel and as % net sales 22.9% 26.2% (3.3pp) 21.9% 24.6% (2.7pp) transportation costs, higher purchased cement Millions of U.S. dollars and higher costs in raw materials in our ready-mix business 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 regional cement volumes Cement (2%) (3%) (4%) Like-to-like quarterly    decreased by 3% while prices increased by Volume Ready mix (12%) (10%) 4% 4% on a year-over-year basis Aggregates (9%) (11%) (5%) In Colombia, cement volumes declined by 8% during the quarter and by 10% during the first nine months of the year; sequentially, cement 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 volumes increased by 7% reflecting increased Cement 2% 4% 1% activity after the elections Price (LC) Ready mix (2%) (2%) 1% In Panama, our cement and ready-mix volumes Aggregates (3%) (0%) 6% declined by 16% and 9%, respectively, during Volume-weighted, local-currency average prices the quarter, mainly due to weakness in the residential sector, partially offset by improvements in infrastructure activity 8

Europe l-t-l l-t-l Year-over-year regional prices for our three core 9M18 9M17 % var % var 3Q18 3Q17 % var % var products up in local-currency terms; cement Net Sales 2,844 2,607 9% 3% 991 948 5% 6% prices increased sequentially in Germany, Poland, the Czech Republic and Spain Op. EBITDA 276 265 4% (2%) 135 129 5% 6% as % net sales 9.7% 10.2% (0.5pp) 13.6% 13.6% 0.0pp In the UK, domestic gray cement and ready-mix volumes decreased 5% and 3%, respectively, Millions of U.S. dollars while aggregates volumes remained flat 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 In Spain, ready-mix and aggregates volumes Cement 1% (0%) (5%) increased 31% and 55%, respectively, reflecting 11 new plants and 3 new quarries, as well as Volume Ready mix (1%) 2% (3%) favorable residential and industrial-and- Aggregates (1%) 3% (2%) commercial demand In Germany, domestic gray cement remained flat; 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 the infrastructure sector was the main driver of Cement 1% 1% (1%) demand during the quarter Price (LC) Ready mix 3% 4% 1% In Poland, domestic gray cement, ready-mix and aggregates volumes increased by 7%, 18% and Aggregates 4% 4% (0%) 14%, respectively, due to strong infrastructure and Volume-weighted, local-currency average prices residential demand 9

Asia, Middle East and Africa l-t-l l-t-l Operating EBITDA for the region declined 9M18 9M17 % var % var 3Q18 3Q17 % var % var by 11% on a like-to-like basis with a margin Net Sales 1,087 999 9% 10% 359 346 4% 7% decline of 2.6pp, reflecting higher energy and Op. EBITDA 164 170 (4%) (3%) 50 57 (13%) (11%) transportation costs, purchased cement and clinker and increased costs in raw materials as % net sales 15.0% 17.0% (2.0pp) 13.8% 16.4% (2.6pp) in our ready-mix business Millions of U.S. dollars Increase in regional volumes and prices for 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 our three core products during the first nine Cement 9% 3% 3% months of the year Volume Ready mix 2% (1%) 5% In the Philippines, domestic gray cement Aggregates 1% 0% 4% volumes increased by 5% during the quarter on a year-over-year basis supported by the infrastructure and residential sectors; cement 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 prices increased by 4% in local-currency Cement 4% 8% (0%) terms on a year-over-year basis Price (LC) Ready mix 5% 3% (3%) In Egypt, domestic gray cement volumes Aggregates 3% 2% (0%) increased by 11% during the first nine months of the year; local-currency cement prices Volume-weighted, local-currency average prices increased by 3% sequentially and by 15% on a year-over-year basis during the quarter 10

Third Quarter 2018 • 3Q18 Results Lumina, USA

Operating EBITDA, cost of sales and operating expenses January—September Third Quarter Operating EBITDA during 3Q18 l-t-l l-t-l increased by 2% on a like-to-like basis 2018 2017 % var % var 2018 2017 % var % var    Net sales 10,933 10,218 7% 6% 3,748 3,539 6% 8% mainly due to higher contributions from our operations in Mexico, the U.S., and our Operating EBITDA 1,956 1,949 0% 1% 704 703 0% 2% Europe region as % net sales 17.9% 19.1% (1.2pp) 18.8% 19.9% (1.1pp) Cost of sales, as a percentage of net Cost of sales 7,215 6,711 (8%) 2,438 2,274 (7%) sales, increased by 0.9pp during the as % net sales 66.0% 65.7% (0.3pp) 65.1% 64.2% (0.9pp) quarter mainly driven by higher energy costs, as well as increased costs in raw Operating expenses 2,388 2,190 (9%) 819 770 (6%) materials in our ready-mix business as % net sales 21.8% 21.4% (0.4pp) 21.8% 21.8% 0.0pp Operating expenses, as a percentage of Millions of U.S. dollars net sales remained flat during the quarter compared with the same period last year 12

Free cash flow January—September Third Quarter Net financial expenses decreased by 2018 2017 % var 2018 2017 % var US$43 million during the quarter and by Operating EBITDA 1,956 1,949 0% 704 703 0% US$149 million year to date, reflecting a lower debt level and our liability    —Net Financial Expense    493                642                160                 203 management efforts    —Maintenance Capex    290                259                116                 105 Investment in working capital of US$7    —Change in Working Capital    426                200                7     (109) million during the quarter, versus a    —Taxes Paid    185                203                37                 40 reversal of US$109 million in 3Q17    —Other Cash Items (net)                58                47                 (6)                26 Expect to substantially reverse the year-    —Free Cash Flow                (1)                (5)                 —                3 to-date investment in working capital                Discontinued Operations during the fourth quarter of 2018 Free Cash Flow after 504 603 (16%) 390 435 (10%) Average working capital days during Maintenance Capex 3Q18 decreased to negative 10, from    —Strategic Capex 95 81 56 24 negative 5 days in 3Q17 Free Cash Flow 409 522 (22%) 334 411 (19%) Millions of U.S. dollars 13

Other income statement items during 3Q18 Other expenses, net, of US$48 million, mainly due to severance payments and others Gain on financial instruments of US$1 million ï,§ On September 21, CEMEX unwound about 34% of its forward positions in Grupo Cementos de Chihuahua (GCC) shares; CEMEX received about US$13 million in cash as a result of this transaction Foreign-exchange loss of US$21 million resulting primarily from the fluctuation of the Mexican peso versus the U.S. dollar Controlling interest net income of US$174 million in 3Q18 versus an income of US$289 million in 3Q17; the lower income mainly reflects lower income from financial instruments, a negative variation in foreign exchange fluctuations and higher income tax, partially offset by higher operating earnings, lower financial expenses and a positive variation in discontinued operations in the U.S. 14

Total debt plus perpetuals has declined by US$713M year to date Total debt plus perpetuals variation                -6% 11,349 395 133 409 10,636 224 4Q17 Cash balance Debt FX effect FCF after Other 3Q18 variation strategic CapEx Millions of U.S. dollars 15

CEMEX consolidated debt maturity profile Total debt excluding perpetual notes as of September 30, 2018: US$10,191 million Credit Agreement Other bank debt Fixed Income Avg. life of debt: 4.8 years Convertible Subordinated Notes1 2,432 1,970 1,608 1,145 1,240 997 639 119 41 2018 2019 2020 2021 2022 2023 2024 2025 2026 Millions of U.S. dollars 1 Convertible Subordinated Notes include only the debt component of US$512 million; total notional amount is about US$521 million 16

Third Quarter 2018 • 2018 Outlook Pharmax Pharmaceutical, United Arab Emirates

2018 guidance Cement: 2% to 3% Consolidated Ready mix: 3% to 4% volumes Aggregates: 1% to 2% Energy cost per ton of cement Increase of approximately 8% to 9% produced US$550 million Maintenance CapEx Capital US$250 million Strategic CapEx expenditures US$800 million Total CapEx Investment in US$0 to 50 million working capital Cash taxes US$250 to 300 million Cost of debt1 Reduction of approximately US$160 million 1 Including perpetual and convertible securities 18

A Stronger CEMEX: progress to date Initiatives Progress to date Targets Brazil US$31M Asset sales FAS1 & other US$31M US$1.5 – 2.0B by 2020 Total US$62M On track to implement all Operational initiatives /                initiatives by end of this year;                US$150M by 2019 cost reduction full benefit should be reflected    in 2019 Total debt plus perpetuals US$254M US$3.5B by 2020 reduction Cash dividend program intended Ongoing cash dividend to be proposed by our Board at US$150M in first year;                program our Annual Shareholders’ starting in 2019 Meeting next year 1 FAS: Fixed asset sales 19

Third Quarter 2018 • Appendix Chase Center, USA

Consolidated volumes and prices 9M18 vs. 9M17 3Q18 vs. 3Q17 3Q18 vs. 2Q18 Consolidated volumes for cement, ready Volume (l-t-l1) 3% 4% (2%) mix and aggregates increased during Domestic gray 3Q18 and the first nine months of the year Price (USD) 2% 1% (0%) cement on a year-over-year basis Price (l-t-l1) 2% 3% (1%) Volume (l-t-l1) 4% 5% (0%) During the quarter, higher year-over-year cement volumes in Mexico, the U.S., Ready mix Price (USD) 5% 3% 1% and our AMEA region Price (l-t-l1) 4% 4% 1% 1 Quarterly and year-to-date increases in Volume (l-t-l ) 2% 5% 0% our consolidated prices for our three Aggregates Price (USD) 5% 3% (0%) core products, both in local-currency Price (l-t-l1) 3% 4% 0% and US-dollar terms, on a year-over-year 1 Like-to-like volumes adjusted for investments/divestments and, in the case of prices, basis foreign-exchange fluctuations 21

Additional information on debt and perpetual notes Third Quarter Second Quarter 2018 2017 % var 2018 Other… Total debt1 10,191 11,111 (8%) 10,444                Short-term 1% 7% 5% Euro Currency 27%                Long-term 99% 93% 95% denomination U.S. dollar Perpetual notes 445 446 (0%) 446 Total debt plus perpetual notes 10,636 11,558 (8%) 10,890 66% Cash and cash equivalents 304 449 (32%) 308 Net debt plus perpetual notes 10,332 11,108 (7%) 10,582 Consolidated Funded Debt2 (CFD) 10,047 10,448 (4%) 10,219 CFD / EBITDA3 3.89 3.98 3.96 Interest coverage3 4 4.33 3.31 4.13 Variable Millions of U.S. dollars Interest rate 38% Fixed 1 Includes convertible notes and capital leases, in accordance with International Financial Reporting Standard (IFRS) 62% 2 Consolidated funded debt, in accordance with our contractual obligations under the 2017 Credit Agreement 3 EBITDA calculated in accordance with IFRS 4 Interest expense in accordance with our contractual obligations under the 2017 Credit Agreement 22

Additional information on debt Third Quarter Second Quarter 2018 % of total 2017 % of total 2018 % of total Total debt1 by instrument Fixed Income 5,782 57% 7,114 64% 6,107 58% 2017 Credit Agreement 3,341 33% 2,529 23% 3,292 32% Convertible Subordinated Notes 512 5% 865 8% 511 5% 5% 5% Others 556 5% 604 5% 534 5% Total Debt1 10,191 11,111 10,444 Millions of U.S. dollars 57% 1 Includes convertible notes and capital leases, in accordance with IFRS 33% 23

9M18 volume and price summary: Selected countries Domestic gray cement Ready mix                Aggregates 9M18 vs. 9M17 9M18 vs. 9M17 9M18 vs. 9M17 Volumes Prices (USD) Prices (LC) Volumes Prices (USD) Prices (LC) Volumes Prices (USD) Prices (LC) Mexico 3% 1% 3% 12% 7% 8% 12% 6% 8% U.S. 7% 3% 3% 9% 2% 2% 4% 4% 4% Colombia (10%) 3% 2% (13%) 2% 0% (13%) 0% (2%) Panama (20%) (1%) (1%) (18%) (8%) (8%) (7%) (0%) (0%) Costa Rica 6% 2% 2% 10% 2% 2% 9% (13%) (13%) UK (4%) 2% (3%) (5%) 4% (1%) (2%) 7% 2% Spain 4% 11% 4% 27% 9% 3% 26% 5% (1%) Germany 1% 7% 2% (8%) 12% 6% (2%) 7% 2% Poland 8% 10% 6% 8% 16% 10% 8% 22% 17% France N/A N/A N/A (1%) 11% 4% 1% 9% 3% Philippines 10% (5%) (1%) N/A N/A N/A N/A N/A N/A Egypt 11% 18% 18% (20%) 40% 39% (23%) 29% 29% 24

3Q18 volume and price summary: Selected countries Domestic gray cement Ready mix    Aggregates 3Q18 vs. 3Q17 3Q18 vs. 3Q17 3Q18 vs. 3Q17 Volumes Prices (USD) Prices (LC) Volumes Prices (USD) Prices (LC) Volumes Prices (USD) Prices (LC) Mexico 9% (4%) 0% 14% 2% 7% 13% 5% 10% U.S. 7% 3% 3% 10% 3% 3% 8% 3% 3% Colombia (8%) 6% 6% (11%) (0%) (0%) (12%) 0% 0% Panama (16%) (1%) (1%) (9%) (9%) (9%) (13%) 9% 9% Costa Rica (4%) 3% 3% (6%) 7% 8% 18% (21%) (21%) UK (5%) (7%) (6%) (3%) (1%) (1%) (0%) 2% 2% Spain (0%) 6% 7% 31% 3% 4% 55% (10%) (9%) Germany (0%) 2% 3% (11%) 6% 7% 2% 3% 5% Poland 7% 5% 7% 18% 9% 11% 14% 21% 23% France N/A N/A N/A 7% 4% 5% 11% 2% 3% Philippines 5% (2%) 4% N/A N/A N/A N/A N/A N/A Egypt 0% 14% 15% (20%) 46% 47% (12%) 37% 39% 25

2018 expected outlook: Selected countries Domestic gray cement Ready mix Aggregates Volumes Volumes Volumes Consolidated1 2%—3% 3%—4% 1%—2% Mexico 1%—2% 9% 9% United States1 6% 8% 3% Colombia (8%) (11%) (14%) Panama (16%) (16%) 0% Costa Rica 3% 5% 9% UK (4%)—(3%) (5%)—(4%) (1%)—0% Spain 4%—5% 15% 15% Germany 1%—2% 0% 0% Poland 6%—7% 5%—6% 3%—4% France N/A 0%—1% 0%—1% Philippines 10%—11% N/A N/A Egypt 1%—2% (12%)—(11%) N/A 1 On a like-to-like basis for the ongoing operations 26

2018 expected outlook: Selected countries Domestic gray cement Ready mix Aggregates Volumes Volumes Volumes Consolidated1 2%—3% 3%—4% 1%—2% Mexico 1%—2% 9% 9% United States1 6% 8% 3% Colombia (8%) (11%) (14%) Panama (16%) (16%) 0% Costa Rica 3% 5% 9% UK (4%)—(3%) (5%)—(4%) (1%)—0% Spain 4%—5% 15% 15% Germany 1%—2% 0% 0% Poland 6%—7% 5%—6% 3%—4% France N/A 0%—1% 0%—1% Philippines 10%—11% N/A N/A Egypt 1%—2% (12%)—(11%) N/A 1 On a like-to-like basis for the ongoing operations 26

Contact information Investor Relations Stock Information In the United States NYSE (ADS): +1 877 7CX NYSE CX In Mexico Mexican Stock Exchange: +52 81 8888 4292 CEMEXCPO ir@cemex.com Ratio of CEMEXCPO to CX: 10 to 1 Calendar of Events February 7, 2019 Fourth quarter 2018 financial results conference call 28