#1GAIX GCC CORPORATE PRESENTATION Q4 2023 414 FEBRUARY 2024 151#2SAFE HARBOR STATEMENT This presentation has been prepared by GCC, S.A.B. de C.V. (together with its subsidiaries, "GCC"). Nothing in this presentation is intended to be taken by any person as investment advice, a recommendation to buy, hold or sell any security, or an offer to sell or a solicitation of offers to purchase any security. Information related with the market and the competitive position of GCC was obtained from public sources that GCC believes to be reliable; however, GCC does not make any representation as to its accuracy, validity, timeliness or completeness. GCC is not responsible for errors and/or omissions with respect to the information contained herein. Due to rounding, numbers presented throughout this presentation may not add up precisely to the totals provided and percentages may not precisely reflect the absolute figures. Forward Looking Statements This presentation includes forward-looking statements or information. These forward-looking statements may relate to GCC's financial condition, results of operations, plans, objectives, future performance and business. All statements that are not clearly historical in nature are forward- looking, and the words "anticipate,” “believe,” “expect,” “estimate," "intend," "project" and similar expressions are generally intended to identify forward-looking statements. The information in this presentation, including but not limited to forward-looking statements, applies only as of the date of this presentation. GCC expressly disclaims any obligation or undertaking to update or revise the information, including any financial data and forward-looking statements. Any projections have been prepared based on GCC's views as of the date of this presentation and include estimates and assumptions about future events which may prove to be incorrect or may change over time. The projections have been prepared for illustrative purposes only, and do not constitute a forecast. While the projections are based on assumptions that GCC believes are reasonable, they are subject to uncertainties, changes in economic, operational, political, legal or public health crises including COVID-19, and other circumstances and other risks, including, but not limited to, broad trends in business and finance, legislation affecting our securities, exchange rates, interest rates, inflation, foreign trade restrictions, and market conditions, which may cause the actual financial and other results to be materially different from the results expressed or implied by such projections. EBITDA We define EBITDA as consolidated net income after adding back or subtracting, as the case may be: (1) depreciation and amortization; (2) net financing expense; (3) other non-operating expenses; (4) taxes; and (5) share of earnings in associates. In managing our business, we rely on EBITDA as a means of assessing our operating performance. We believe that EBITDA enhances the understanding of our financial performance and our ability to satisfy principal and interest obligations with respect to our indebtedness as well as to fund capital expenditures and working capital requirements. We also believe EBITDA is a useful basis of comparing our results with those of other companies because it presents results of operations on a basis unaffected by capital structure and taxes. EBITDA, however, is not a measure of financial performance under IFRS or U.S. GAAP and should not be considered as an alternative to net income as a measure of operating performance or to cash flows from operating activities as a measure of liquidity. Our calculation of EBITDA may not be comparable to other companies' calculation of similarly titled measures. Currency translations / physical volumes All monetary amounts in this presentation are expressed in U.S. Dollars ($ or US$). Currency translations from pesos into U.S. dollars use the average monthly exchange rates published by Banco de México. These translations do not purport to reflect the actual exchange rates at which cross-currency transactions occurred or could have occurred. The average exchange rates (Pesos per U.S. dollar) used for recent periods are: - Q4-23 17.5732 Q4-22 19.6878 2023 2022 - - 17.7597 20.1222 Physical volumes are stated in metric tons (mt), millions of metric tons (mmt), cubic meters (m3), or millions of cubic meters (mm3). GCC 2#3REFLECTION OF THE STRATEGY EXECUTION SINCE 2016 Deleveraging as soon as possible ONE OF THE STRONGEST PLAYERS IN THE INDUSTRY Maintaining a healthy cash balance Refinancing bank debt and notes, extending maturities and reducing the average cost of debt Swapping non-integrated ready-mix assets for Montana cement plant without increasing debt Succesfully completing Rapid City cement plant expansion and Samalayuca debottlenecking project Maintaining strict M&A criteria with a focus on value for purchase, at a cost within strict pre-determined parameters GCC 3#4GCC CASH, LIQUIDITY AND BALANCE SHEET Cost and expense reductions throughout the organization • Variable costs and distribution efficiencies Achieved US$24 million in savings during 2020 and maintained US$10 million in 2021 e.g. hiring freeze, not filling vacant positions and limiting external service providers Cash and equivalents totaled US$958.7 million in Q4-23 Net debt/EBITDA totaled -0.99x as of December 2023 No significant debt maturities in 2022 Issued a US$500 million 10-year sustainability-linked bond due 2032 Strong balance sheet, result of the strategy of maintaining an efficient and prudent capital structure 4#5INVESTMENT HIGHLIGHTS 1 Leading position in attractive U.S. regional markets and in Chihuahua, Mexico 2 TICKER: BMV: GCC 加 Mexico operations also provide a strong base, and add operational flexibility with export capacity 3 Vertically integrated, with best in class production facilities and logistics 4 Increased free float and liquidity 5 Healthy balance sheet and strong free cash flow drive value creation GCC LO 5#6MORE THAN NINE YEARS OF OPERATIONAL AND FINANCIAL TRANSFORMATION Disciplined expansion Customer focus Operational excellence Prudent balance sheet management Increased shareholder value AS OF Cement Capacity EBITDA Growth EBITDA Margin Net Debt/ Free Float Share Price (06/02/24) EBITDA DECEMBER 2023 VS 2014 +1.7mmt +36% 2.28x- ->>> 25%- +200% +1,420bp +430% -0.99x 49% GCC 6#7GCC GCC AT A GLANCE: A UNIQUE MARKET PRESENCE 6 MMT¹ cement production capacity 3.5 MMT in U.S. + 2.5 MMT in Mexico #1 or #2 share in core markets Landlocked states, insulated from seaborne competition 8 cement plants, 23 terminals, 2 distribution centers and 95 ready-mix plants 82 years of operation – 29 in the U.S. Listed on Mexican Stock Exchange: GCC* Included in: S&P/BMV IPC FTSE Indexes CEMENT AND READY-MIX CONCRETE OPERATIONS ACROSS THE "CENTER CUT" OF NORTH AMERICA ALBERTA MT ND MN WI ID SD WY IA NE FTSE BIVA KEY RESULTS FY 2023 US$1,364 million sales - 69% U.S. / 31% Mexico - US$472 million EBITDA – 76% U.S. / 24% Mexico 34.6% EBITDA margin Net leverage of -0.99x 'MMT million metric tons UT CO KS NM CHIH. W. TX 7#8ALBERTA D #1 MT #3 ND GCC REGIONAL LEADER IN U.S. MID-CONTINENT MARKETS WELL-POSITIONED TO CAPTURE U.S. GROWTH AND CONSTRUCTION INDUSTRY RECOVERY #2 WY UT no CO MN #1 SD nee معي #1 #2 IA NE KS OK mm NM W TX & #1 E TX WI Samalayuca and Juarez plants in Chihuahua can supplement the U.S. market with 0.5-0.7 mmt Leadership position in 15 contiguous states . CO, MN, MT, ND, NM, SD, UT and W.TX are our core markets, with 91% of U.S. sales No other producer competes with GCC across all our markets Diversified regional economies with low unemployment, offering clear upside to U.S. construction recovery Pricing upswing since 2013 · Limited prospects for greenfield capacity expansion . Well-protected from seaborne imports Trident, MT cement plant acquisition (June 2018) Rapid City, SD plant expansion (+0.4 MMT) increased U.S. cement capacity to 3.5 MMT per year (finished 4Q18) Samalayuca, Chih. debottlenecking project (+0.2 MMT) finished in April 2023 Odessa, TX plant ongoing expansion (+1.1 MMT) Larger sales Mid sales Lower sales Coal mine Cement plant # Concrete ✓ Cement terminals Market position in each state 8 00#9MARKETS WITH DEMONSTRATED VOLUME AND PRICE RECOVERY GCC U.S. CEMENT SALES ('000 MT) 3,277 3,359 3,458 3,281 3,180 2019 2020 2021 2022 2023 GCC U.S. CEMENT PRICES (CHANGE, YEAR-OVER-YEAR) 12.2% 10.3% 10.3% 16.2% 20.6% 16.6% 12.4% 3yr CAGR +1.0% 3yr CAGR +12.1% 8.4% GCC U.S. CONCRETE SALES ('000 M3 / YEAR) 3yr CAGR -4.0% Continued operations 901 939 830 760 784 2019 2020 2021 2022 2023 GCC U.S. CONCRETE PRICES (CHANGE, YEAR-OVER-YEAR) 12.5% 16.9% 17.1% 3yr CAGR +8.3% 9.6% 5.6% 4.2% 1.3% -0.7% Q1-22 Q2-22 Q3-22 Q4-22 Q1-23 Q2-23 Q3-23 Q4-23 Q1-22 Q2-22 Q3-22 Q4-22 Q1-23 Q2-23 Q3-23 Q4-23 GCC 9#10WHERE GCC FACES FRAGMENTED COMPETITION AND HAS A DIVERSIFIED BUSINESS MIX GCC MARKET POSITION AND COMPETITORS IN CORE MARKETS GCC market position GCC cement plant in state GCC COLORADO N. MEXICO N. DAKOTA S. DAKOTA W. TEXAS WYOMING MONTANA #2 #1 #3 #1 #1 #2 #1 * Refers to West Texas only Competitor in-state plant LHN, CX BZU, SRMG* EXP CRH Other principal competitors EXP LHN HEI, LHN CRH LHN, CRH ** U.S. 2023 SALES MIX Cement and mortar 73% O Ready-mix concrete 16% Other 10% U.S. 2023 PRODUCTION VOLUME BY CEMENT TYPE Gray cement, specialty and masonry 79% O Oil-well cement 21% Public 50% 15% of GCC's total volume 1Sales by segment, weighted GCC sales by state. PCA Winter forecast 2021 U.S. SECTORS¹ Aprox. 12 mmt of capacity in East and Central Texas Residential 27% Commercial Oil Rig/Well 16% 7% 10#11AND A CLEAR NEED FOR INCREASED INFRASTRUCTURE SPENDING DEFICIENT ROADS 1 LANE MILES RATED 'POOR' AS A SHARE OF TOTAL LANE MILES CA WA CEMENT FUNDAMENTALS 2 BASED ON PCA SECTOR COMPOSITE RANKINGS* WA MT ND OR MN ID SD WII WY MI NH VT ME MT NH ME VT ND OR MN NY -MA ID SD RI WY CT IA NE PA NJ IA NE NV OH UT IN -DE IL CO WV MD KS VA MO KY NC AZ N TN OK NM AR NY -MA RI CT PA -NJ NV OH UT IN DE IL CO WV MD CA KS VA MO KY NC TN AZ OK NM AR WI MI Highest Concentration Average Concentration Lowest Concentration SC AL GA MS LA TX FL Above Average Average Below Average SC AL GA MS LA TX FL 1Source: PCA United States' Cement Outlook 2Source: PCA Market Intelligence, Regional Analysis (July 2020) *Res: Mortgage Delinquency and Unemployment Rates, Home Prices Non Res: Manufacturing, Office, Retail and Hospitality (Jobs Recovered) Public: Fiscal Health, Transportation Capital Expenditures, Employment, Long-Term Public Debt GCC 11#12LEADING TO A POSITIVE OUTLOOK, DRIVEN BY AN EXPECTED INCREASE IN INFRASTRUCTURE SPENDING FORECAST CEMENT CONSUMPTION IN ALL GCC U.S. MARKETS (MMT) 4yr CAGR 0.0% 31.3 31.1 31.0 30.8 30.5 2.0% 0.4% 2020 2021 2022 -1.6% 2023E -0.7% -1.8% 2024E FORECAST TOTAL U.S. CEMENT CONSUMPTION (MMT) GCC 4yr CAGR +1.3% 108.3 106.0 105.1 105.4 101.7 2020 4.2% 2.0% 2.1% 0.2% -2.9% 2021 2022 2023E 2024E Total Consumption A% as previous year U.S. CEMENT DEMAND WILL OUTPACE SUPPLY BY 2024, IMPORTS WILL BE A CRITICAL SOURCE OF SUPPLY 120 112 104 96 88 80 2019 2020 2021 2022 2023E 2024E 2025E 2026E Source: PCA Fall 2023 Forecast U.S Annual Cement Consumption (mmt) Annual Cement Capacity (mmt) 12#13PORTLAND CEMENT ASSOCIATION (PCA) FALL 2023 FORECAST AND MAIN CONSUMERS GCC COLORADO WITH A SOLID 3,000 OUTLOOK IN KEY 2,500 STATES 2,000 5.9% 3.4% 1,500 -2.2% 0.0% 1,000 500 2019 2020 2021 2022 2023E 1- Residential 2- Government 3- Commercial NEW MEXICO 800 700 600 500 7.1% 15.0% 400 300 200 100 18,000 15,000 12,000 9.9% 9,000 6,000 -10.9% 3,000 TEXAS HHH -0.1% -2.5% 0.0% 1.5% 2019 2020 2021 2022 2023E 1- Government 2- Residential 3- Commercial Total Consumption (000MT) A% vs previous year 700 600 500 400 300 0.5% -1.8% 0.0% 200 -7.0% 100 2019 2020 2021 2022 2023E 1- Residential 2- Oil-well cement 3- Government Source: PCA Fall 2023 Forecast Analysis SOUTH DAKOTA 24.1% ||||| -4.5% -6.0% 6.9% 2019 2020 2021 2022 2023E 1- Government 2- Residential 3- Agricultural 13#14U.S. INFRASTRUCTURE PLAN WILL BOOST THE CEMENT INDUSTRY BIDEN INFRASTRUCTURE PLAN GCC The Infrastructure Investment and Jobs Act is a $1.2 trillion infrastructure package. Included in the package is roughly $550 billion in new surface transportation spending. The plan will take 5-years and combines transformational efforts in roads, bridges, railroads, and domestic building, among others, all requiring cement. Over $280 billion was announced as of 3Q23 83% of GCC's EBITDA is driven by cement MARKET PCA estimates that the plan will result in an increase in cement consumption of 35 million metric tons Cement consumption is expected to increase 7% annually over 2020 levels (excluding organic growth) Projects will start to materialize in 2024 LIMITED AVAILABILITY Cement availability pressured by high demand due limited supply GCC is well positioned to meet U.S. demand with Mexico cement plants and the Rapid City cement plant expansion Odessa plant expansion to be completed in 2025 to capture plan-related demand PRICE INCREASES In 2024, we have increased cement prices one time In 2023, we increased cement prices two times, which represents an average of 8% increase Market dynamic could potentially drive the increase in cement prices 14 Sources: PCA Fall 2022 Forecast. PCA Market Intelligence "Infrastructure Investment and Jobs Act Tracking Report" September 2023 and "Infrastructure Investment and Jobs Act Impact on Cement Consumption" October 2021#15140 120 100 80 60 WHILE IN A FAVORABLE PHASE OF THE U.S. CEMENT CYCLE U.S. CEMENT PRODUCTION AND CONSUMPTION ↑ -18% Production Consumption Actual 2003-2023 Estimated 2024-2027 40 40 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 Source: USGS, PCA 2023 U.S. apparent consumption is still 18% below 2005 peak (23 MMT) Import share is about 25% of consumption, compared to 23% share in 2006 GCC 15 115#16Exports to U.S. Cement plant Other operations •Concrete plants ⚫Distribution centers • ⚫ Aggregates • Concrete block . • Asphalt plant • Pre-cast plant GCC IS THE LEADING PRODUCER IN THE STATE OF CHIHUAHUA, WITH SIGNIFICANT EXPORT CAPACITY 2023 SALES MIX Juarez Samalayuca Chihuahua Cuauhtemoc Ocampo Parral Great Place Το Work® Certified NOV 2023 NOV 2024 México Mexico cement capacity: 2.5 mmt GCC is sole producer of cement and the leading producer of ready-mix concrete in Chihuahua Close economic ties between Chihuahua and the U.S. • Cyclical recovery benefit Foreign direct investment target Demand growth driven by private sector Flexibility to supply Texas and New Mexico demand from Samalayuca and Juarez plants Chihuahua plant supporting oil-well cement demand in Texas EXPORT SHARE OF MEXICO'S VOLUME SALES CEMENT DOMESTIC PRICING TRENDS (% CHANGE YEAR-ON-YEAR)1 Products Other Aggregates 12% 5% Bagged 24% Concrete block 6% Ready-mix concrete 28% Format 43% 41% 38% 38% 35% 32% 8.2% 5.7% O. ... Cement and mortar 49% Bulk 76% 2018 2019 2020 2021 2022 2023 4.2% 1.4% 1 GCC 12.7% 12.0% 2018 2019 2020 2021 2022 2023 16 Price changes in local currency#17VERTICALLY INTEGRATED OPERATIONS FUEL Coal mine in Colorado provides a significant source of fuel for GCC cement plants, lowering costs and reducing price volatility RAW MATERIALS GCC owns most of the limestone quarries needed to supply cement, ready-mix and aggregates operations over the long-term CEMENT COMIC 8 plants in the U.S. and Mexico, close to raw materials sources GCC IS PRESENT AT ALL STAGES OF THE CEMENT AND READY-MIX SUPPLY CHAIN READY MIX 95 plants. GCC cement plants supply almost a 100% of the cement used in our ready-mix operations CEMENT TERMINALS 23 rail-served cement terminals, 2 distribution centers, and transfer stations from Chihuahua to the U.S. -Canadian border TRANSPORT DAD More than 2,780 leased railcars and 970+ mixer and haul trucks to transport cement, concrete, aggregates and coal GCC 17#18WITH STATE OF THE ART PRODUCTION FACILITIES Rapid City, SD 1.1 MMT 2018 expansion Pueblo, CO 1.1 MMT 2008 startup Chihuahua, Chih. 1.1 MMT 1941 startup 2009 modernized United States 3.5 MMT Tijeras, NM 0.4 MMT 2015 modernized 6.0 MMT Cement production capacity 1.1 MMT Available clinker capacity (December 2023) Samalayuca, Chih. 1.2 MMT 1995 startup 2002 modernized 2023 debottlenecking Mexico 2.5 MMT Odessa, TX 0.5 MMT Oil-well cement 2016 acquired Trident, MT 0.4 MMT 2018 acquired Juarez, Chih. 0.2 MMT Speciality cements 1972 startup 2000 modernized GCC 18#1979% 75% 91% OPERATING AT NEAR-OPTIMAL CAPACITY UTILIZATION LEVELS 90% 86% 86% 86% 82% 79% 79% 78% 74% 89% 86% 74% 64% 81% 79% 78% Chihuahua Samalayuca Juarez Tijeras Rapid City Pueblo Odessa Trident MX US GCC MEXICO UNITED STATES GCC U.S. industry estimated average 77% 2022 2023 19#20ROBUST LOGISTICS PLATFORM STRETCHES FROM NORTHERN MEXICO TO THE U.S. BORDER WITH CANADA ALBERTA LINKED BY SOPHISTICATED DISTRIBUTION NETWORK THAT LEVERAGES CONTIGUOUS MARKET FOOTPRINT Operational flexibility Cost efficiency Faster delivery time Advanced logistics MT ND MN Reduced supply disruption risk SD ID Hard to replicate WY Brand loyalty and client trust Redundancy UT IA NE KS 23 cement terminals, 2 distribution centers, and transfer stations +2,780 leased rail cars 95 ready-mix plants, 970+ mixer and haul trucks OK NM W TX CHIHUAHUA Cement terminal Cement plants Illustrates sale of cement from origin state to destination state E TX WI GCC 20#21RECENT DEVELOPMENTS ENHANCE GCC'S VALUE PROPOSITION EBITDA Growing +150% EBITDA growth since 2016 34.6% 2023 margin Cement Capacity Growing +514k mt Odessa in 2016 acquisition +440k mt Rapid City in 2018 expansion +315k mt Trident in 2018 acquisition +200k mt Samalayuca in 2023 debottlenecking +1.1m mt Odessa ongoing expasion Debt Falling and Refinancing -0.99x Net leverage BBB- Investment grade Fitch rating BBB- S&P rating $500 mm Sustainability-linked bond Increased free float and liquidity 46% of total shares on BMV +23% Free Float S&P/BMV IPC Index inclusion FTSE Index inclusion FTSE BIVA Index inclusion GCC 21#22REDUCTION OF INTEREST COUPON BY 1.636 PERCENTAGE POINTS MATURITY PROFILE (US$ Million) GCC BOND AND BANK DEBT REFINANCING STRENGHTEN FINANCIAL POSITION Fitch and S&P upgraded GCC's rating to investment grade (Q1-21) • Bond interest coupon decreased to 3.614% from 5.250% (January 2022) Undrawn ~US$270mm revolving credit facility to support liquidity AGENCY RATING OUTLOOK DATE FITCH S&P BBB- BBB- Positive Stable 12/23 06/23 DEBT COMPOSITION SECURITIES DEBT 2022 DEBT RATIOS (December 31, 2023) Sustainability-linked bond US$500 million Net Debt/ EBITDA -0.99x 3.614% coupon due 2032 Debt amounts based on loan contract amounts. IFRS balance sheet values slightly lower SLB: Sustainability Linked Bond EBITDA / Net Interest Expense -12.1x 500 2032 22#23US$500MM BBB- SUSTAINABILITY LINKED BOND FIRST ISSUANCE AS AN INVESTMENT GRADE COMPANY Largest USD SLB by a cement company ever . 2.8x oversubscribed orderbook • Drove a 25bps compression from IPTs to launch GCC hosted conference calls with over 75 accounts, over a 4-day marketing exercise, while simultaneously leveraging an electronic roadshow that was viewed by more than 200 unique accounts RATING BY . Extends GCC debt maturity profile S&P/FITCH 3.614% FIXED COUPON DUE T10 + 185BPS 2032 75BPS STEP-UP • Fund the full call redemption of the US$260 million 5.250% notes due 2024 Refinance upcoming bank debt maturities US$ million 959 GCC Bank Debt 500 USD Bonds 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 Cash and Equivalents 23#24SUSTAINABILITY LINKED BOND REINFORCING GCC'S COMMITMENT TO DECARBONIZATION First SLB from a cement company in the Americas, positioning GCC at the forefront of the industry's decarbonization strategy SUSTAINABILITY PERFORMANCE TARGET Carbon Intensity Reduction, measured as specific gross kilograms of CO2 (Scope 1) emissions emitted per ton of cementitious material 770 767 754 754 755 746 741 740 710 680 650 Target validated by the Science-Based Target initiative (SBTI) and aligned with the well below 2°C curve 620 30.7% reduction from the 2015 baseline by year-end 2030 590 Emissions validated by third party FACTORS THAT SUPPORT OUR TARGET . Increase production of blended cements to reduce clinker ratio Increase use of alternative fuels in kilns, especially the biomass fuel • Optimize use of thermal energy in kilns • Upgrade kiln equipment in cement plants • Switch fuels between coal and natural gas • Research carbon capture to adopt technology 560 SCIENCE BASED TARGETS DRIVING AMBITIOUS CORPORATE CLIMATE ACTION 530 707 SPT: 30.7% reduction GCC from the 2015 baseline by 2030 Actuals 531 500 2015 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 ISS ESG GCC has engaged ISS to provide a Second Party Opinion (SPO) of the Framework, available in the ISS website 24 24#25EBITDA MARGIN 17.3% DEBT AND CAPITAL EFFICIENCY INDICATORS STEADILY IMPROVING 34.6% +17.3 ppt 2013 2014 2015 2016 2017 2018** 2019 2020 2021 2022 2023 NET LEVERAGE RATIO (Net Debt/EBITDA) 3.45x 2.57x 2.28x 1.86x 1.84x 1.55x 1.11x 0.24x WORKING CAPITAL (Based on sales) 76 60 60 58 58 54 50 47 46 39 38 27 ↓ 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 -0.44x -0.93x -0.99x 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 * Proforma after asset swap Year-end days in WC GCC 25 25#26STRENGTHENED MARGINS AND LOWER INDEBTEDNESS THAN MOST OF OUR PEERS US Average 1.6x 2023 estimated Net Debt/EBITDA multiples* LatAm Average 3.1x 1.7x 2.2x 1.8x 2.4x 3.9x 2.9x 0.7x -0.8x EXP VMC MLM SUM Cemex CLH Argos GCC 2023 estimated EBITDA margins* US Average 28.2% LatAm Average 18.3% 32.6% 34.0% 28.8% 29.4% 20.7% 17.1% 19.5% 18.3% GCC EXP VMC MLM SUM GCC Cemex CLH Argos 26 Source: J.P. Morgan (March 2023) and Morgan Stanley (March 2023) estimates#27CAPITAL MARKETS TRANSACTIONS INCREASED SHARE FLOAT AND LIQUIDITY; VALUATION REMAINS ATTRACTIVE GCC TRANSACTIONS BENEFIT PUBLIC MARKET SHAREHOLDERS Transparent control group shareholdings Float increased to 49% of shares . Increased liquidity 2023 ESTIMATED EV/EBITDA MULTIPLES¹ US Average 11.5x LatAm Peers 6.4x SHARES STILL TRADE BELOW PEER GROUP MULTIPLES 5.5x 10.0x 14.6x 14.5× 9.3x 7.4x 5.1x 6.6x 7.5x ● Even after 100% price increase since 2017 GCC Weighted Peers² Vulcan Materials Martin Marietta Summit Materials Eagle Materials Argos Cemex Cemex LatAm · Trading at a 45% discount to weighted peers² • 52% discount to U.S. average 14% discount to LatAm average 1 Source: J.P. Morgan (March 2023) and Morgan Stanley (March 2023) estimates 2 Weighted peers implies: 72% US peers + 28% LatAm peers 27 22#28LIQUIDITY HAS INCREASED SIGNIFICANTLY AS A RESULT OF CORPORATE DEVELOPMENTS AND STOCK MARKET POSITIONING "Re-IPO," February 2017 LIQUIDITY ENHANCING EVENTS IPC Index inclusion, September 2018 FTSE Index inclusion, March 2019 AVERAGE DAILY TRADING VOLUME, SHARES¹ 64,000 278,000 Coverage Rating Average before "re-IPO" Post "re-IPO" 1 Actinver Outperform Jan 2016 Feb 2017 Feb 2017 Jun 2018 23 Bank of America Buy Banorte Buy 4 Citigroup Buy 5 Data Based Analysis Not Authorized 6 GBM 7 Itaú 8 JP Morgan 9 Morgan Stanley 10 Santander 11 12 13 123 Scotiabank UBS Neutral Ve por Más Buy Outperform Market perform Overweight Overweight Neutral Outperform Indexes FTSE FTSE BIVA S&P/BMV IPC Average Buy 1 Source: BMV; GCC calculations 1 Averages exclude trading volumes at time of re-IPO and partial early termination of equity forward 426,000 GCC Post indexes inclusion Jun 2018 Dec 2023 28#29GCC IS MEMBER OF THE GLOBAL CEMENT AND CONCRETE ASSOCIATION 7 AFFORDABLE AND CLEAN ENERGY MAIN GOALS 2020 REDUCE NET CO2 EMISSIONS BY 9% INDUSTRY, INNOVATION 9 AND INFRASTRUCTURE 2030 REDUCE NET CO2 EMISSIONS BY 30.7% SUSTAINABLE CITIES 11 AND COMMUNITIES 2050 COLLECTIVE AMBITION FOR CARBON NEUTRAL CONCRETE CO2 emissions reductions are compared to our 2015 baseline 12 RESPONSIBLE CONSUMPTION AND PRODUCTION QO 13 CLIMATE ACTION Sustainable Development Performance Targets SUSTAINABLE DEVELOPMENT GOALS HOW? Climate & Energy Circular Economy Health & Safety Energy efficiency Alternative fuels Blended cements Environment & Nature New carbon capture technology Social Responsibility Concrete Triple Bottom Line - Growth & Profitability Strategy & Execution GCC 29#30D SUPPORTED BY SUSTAINABILITY INITIATIVES RESULTING IN DIRECT ECONOMIC AND ENVIRONMENTAL BENEFITS ALTERNATIVE FUELS (AF) USAGE 11.5% 10.2% 9.7% 9.1% 9.1% 7.7% 6.9% AF USAGE BY PLANT 49% 44% 44% 38% GCC 28% 22% 50k 81k 78k 78k 88k 84k 64k 54k 1 18% 24% 21% 19% 18% 15% 10% 7% 7% 3% 2% 2015 2017 2018 AF usage (MT) % AF/thermal energy 2019 2020 2021 2022 2023 Samalayuca Chihuahua Juarez Pueblo Rapid City 2020 2021 2022 ■2023 CO2 EMISSIONS 7.8% 3.4% 2.7% 1.7% 1.7% 1.0% 1.6% 767k 759k 754k 754k 746k 755k 741k 707k 2015 2017 2018 2019 2020 2021 2022 2023 kgCO2 gross emissions % CO2 emissions reduction' AF PROVIDE SIGNIFICANT COST ADVANTAGES GCC saved more than US$12 million using AF in 2023 AF provided 6.9% of 2023 total thermal energy . . . Pueblo plant had a record of 24% AF usage in 2023 Rapid City plant began to use AF in 2023 . GCC expanded the Samalayuca plant's AF capability in 2023 GCC received permit to co-process AF at Rapid City (2019) GCC expanded the Pueblo plant's AF capability (2018) 12015 is the baseline year for our SBTI validated CO2 emissions reduction target | 2023 results are pending to be validated by a third party 30#31SUPPORTED BY SUSTAINABILITY INITIATIVES RESULTING IN DIRECT ECONOMIC AND ENVIRONMENTAL BENEFITS % CLINKER RATIO 88% 88% 88% 87% 86% 84% LOWER CLINKER RATIO TRANSLATES INTO LOWER CO2 EMISSIONS • GCC reduced clinker factor to an record 84% in 2023 · Blended cement represented a record 73% of cement production in 2023 Chihuahua and Samalayuca plants began to use pozzolans in 2023 91% 91% 91% 90% 89% 86% ● • Pueblo was fully converted to PLC in 2022 84% 84% 84% 84% 83% 81% 2018 2019 2020 2021 2022 2023 U.S. ■Mexico BLENDED CEMENT PRODUCTION Trident and Rapid City can produce PLC since 2022 Samalayuca plant produces and exports PLC to the U.S. since 2022 According with the ASTM Standard specifications for blended cements BLENDED CEMENT PRODUCTION BY PLANT 100% 82% 94% 92% 91% 88% 88% 36% GCC 21% 21% 23% 15% 23% 21% 23% 27% 35% 73% 2018 2019 2020 2021 2022 2023 ■GCC Pueblo Rapid City Tijeras Trident Chihuahua Samalayuca ■2022 ■2023 31 'Blended cement refers to PLC (Portland Limestone Cement) and pozzolanic cement#32LATEST ESG ACHIEVEMENTS GCC GCC was awarded a “B” rating in Carbon Disclosure Project (CDP) climate rating in 2023 . GCC was awarded a “C” rating in CDP water in 2023 Pueblo and Rapid City cement plants earned the 2023 EPA Energy Star certification since 2018 and 2020, respectively Tijeras plant won the PCA's Safety Innovation Award for pyroprocessing Odessa plant won the PCA's Chairman's Safety Performance Award • Mexico Division was certified as a Great Place to Work® since 2015 . U.S. Division was certified as a Great Place to Work® since 2019 2023 ENERGY STAR CERTIFIED energy FACILITY ENERGY STAR www.energystar.gov Great Place To WorkⓇ Certified NOV 2023 - NOV 2024 México GCC was awarded by the Mexican Center for Philanthropy since 2005 CO2 emissions reduction targets (aligned to WB2C) were validated by the Science Based Targets initiative since 2023 Our Scope 1 and 2 emissions data have been validated by a third party (KPMG) since 2022 GCC released its first Task Force on Climate-related Financial Disclosures (TCFD) Report in 2023 GCC's CO2 emissions decreased to 707 kg CO2 in 2023 from 741 kg CO2 in 2022; a 4.6% record reduction 100% and 40% of the electricity consumed at the Odessa and Rapid City plants, respectively, comes from renewable sources in 2023 GCC's CEO, Enrique Escalante, was elected to GCCA's board of directors in 2022 GCC is part of GCCA's research network, Innovandi Great Place To Work®Ⓡ Certified ESR JAN 2023-JAN 2024 USA TM EMPRESA SOCIALMENTE RESPONSABLE 32 32#33EXPERIENCED MANAGEMENT TEAM, WITH SOUND CORPORATE GOVERNANCE ENRIQUE ESCALANTE, CEO GCC since 1999; 24 years in the industry MAIK STRECKER, CFO GCC since 2020; 23 years in the industry RON HENLEY, U.S. DIVISION PRESIDENT GCC since 2012; 37 years in the industry MARCOS RAMÍREZ, MEXICO DIVISION PRESIDENT GCC since 1990; 33 years in the industry 49.1% 50.9% GCC Free float BOARD OF DIRECTORS 100% Chihuahua Investors 60% CEMEX + 40% Proprietary, Chihuahua investors Proprietary, Cemex Independent CAMCEM 644 | GCC's senior management team averages ~30 years cement industry experience | Note that GCC currently has an ownership threshold of 3% or more of GCC's total outstanding shares; a position greater than 3% requires prior autorization by GCC's Board AUDIT AND CORPORATE PRACTICES COMMITTEE All 3 committee members are independent Assists the Board in carrying out its oversight duties and conducting corporate practices in accordance with the Mexican Securities Market Law Monitors compliance with internal policies and applicable laws and regulations regarding related party transactions and significant transactions GCC 33#34FIXED PAY BASE SALARY COMPENSATION PLAN GOAL: CLOSELY ALIGN PAY WITH PERFORMANCE AND VALUE CREATION OVER THE SHORT AND LONG-TERM Smallest component of target TDC CEO: ~ 31% Key executives: 40% - 62% VARIABLE PAY ANNUAL INCENTIVE GCC TOTAL DIRECT COMPENSATION (TDC) Based on EBITDA: • Budgeted growth EBITDA margin Pays out between 0% and 205% of target CEO: ~ 33% Key executives: 18% -28% 69% PERFORMANCE BASED LONG-TERM INCENTIVE Largest component of target TDC Restricted stock Based on ROIC 5 year vesting period CEO: ~ 36% Key executives: 15% - 34% 34 44#35FRAMEWORK WITH A DISCIPLINED APPROACH TO ACQUISITION AND GROWTH INVESTMENTS • Increase market share 1 Increase presence in existing markets • Vertical integration 2 Increase productivity Value-added products STRATEGIC PRIORIZATION AND EVALUATION OF ALTERNATIVES Cement opportunities • Efficient investment strategy Expand and scale capacity in a disciplined manner Improve distribution network utilization Aggregates opportunities with vertical integration ⚫ Continue successful U.S. expansion 3 Enter new markets ⚫ Focus on synergistic contiguous markets Case by case Ready-mix & asphalt opportunities with vertical integration Distracts from core 4 Value accretive M&A Analyze opportunities that generate shareholder value Apply successful experience in integrating acquisitions to add synergies Standalone aggregates, ready-mix & asphalt Ready-mix & asphalt out of footprint Ready-mix within footprint Seek out Cement (AZ, UT, TX, KS, IA, MO) Aggregates within footprint Asphalt within footprint Green energy projects within footprint Cement US coastlines Attractiveness (ROI, size, affordability) + GCC 35#36REINFORCING A POSITIVE 2024 OUTLOOK UNITED STATES Volumes CONSOLIDATED EBITDA growth Mid-single digit Cement Concrete Low-single digit FCF Conversion Rate > 60% Prices Cement Mid-single digit Concrete MEXICO Volumes Cement Concrete Low-single digit Total CAPEX Growth Maintenance Net Debt/EBITDA, year-end US$470 million US$400 million US$70 million Negative GCC Prices Cement Concrete Mid-single digit 36 Free cash flow conversion rate: free cash flow after maintenance CapEx and before strategic and growth CapEx/EBITDA#37ENRIQUE ESCALANTE CEO Q4 2023 QUOTE Enrique Escalante, GCC's Chief Executive Officer, commented: "GCC had an outstanding performance during 2023, achieving year-on-year growth in both top and bottom-line. Our record-breaking financial performance was driven by strong client relationships and operational excellence." Enrique continued, “Looking forward, our focus on executing strategic initiatives and enhancing competitive advantages will fortify our margins, aligning our vision for continued success with our commitment to sustainability.” O GCC 37#3805 | APPENDIX GCC#39SALES (US$ MILLION) 340 289 +17.8% 1,168 +16.7% Q4 & FY 2023 RESULTS 1,364 31.2% EBITDA & EBITDA MARGIN (US$ MILLION) 34.8% 90 118 18 90 +31.0% Q4-22 Q4-23 2022 2023 Q4-22 2023 NET SALES BY COUNTRY Mexico 31% U.S. 69% O 30.9% 362 34.6% 472 +30.6% 109 Q4-23 2022 2023 Q4-22 2023 SALES MIX Aggregates 2% Coal 4% Ready-mix concrete 22% Other 6% 0 CEMENT Cement and mortar 66% FREE CASH FLOW (US$ MILLION)¹ -2.0% n.m. 4 Q4-22 107 279 234 Q4-23 2022 NET INCOME (US$ MILLION) 15 75 -16.2% 140 +110.5% 295 2023 GCC Q4-23 2022 2023 39#40Net sales Q4 2023 RESULTS HIGHLIGHTS Millions of dollars Q4-23 Q4-22 Var 2023 2022 Var 339.9 288.6 17.8% 1,363.9 1,168.3 16.7% Operating income before other expenses 98.4 68.2 44.4% 383.1 268.3 42.8% EBITDA 118.2 90.2 31.0% 472.4 361.6 30.6% 34.8% 31.2% 34.6% 30.9% EBITDA Margin Consolidated net income 75.0 4.5 n.m. 295.3 140.3 110.5% GCC Consolidated net sales increased 17.8% year-on-year, to US$339.9 million U.S. sales grew 19.6% as cement and concrete prices rose 8.4% and 9.6%, respectively U.S. cement and concrete volumes increased 5.3% and 7.8%, respectively Mexico sales increased 13.8% reflecting an 8.2% and 12.5% increase in cement and concrete prices, respectively Mexico sales excluding the appreciation of the Mexican peso increased by 1.7% EBITDA increased 31% to US$118.2 million with a 34.8% EBITDA margin Free cash flow totaled US$107.1 million with a 90.6% free cash flow conversion rate Cash and equivalents totaled US$958.7 million Net leverage (net debt/EBITDA) ratio totaled -0.99x as of December 2023 40 40#41SALES VOLUMES AND PRICES Q4-23 vs Q4-22 2023 vs 2022 Cement volumes U.S. 5.3% -5.1% Mexico -7.2% 2.2% Concrete volumes U.S. 7.8% 5.9% Mexico -4.2% 5.2% UNITED STATES (U.S. DOLLARS) 9.6% 8.4% Q4-23 vs Q4-22 Percentage changes are based on actual results, before rounding 14.1% 13.7% 2023 vs 2022 GCC Favorable price environment in both countries Oil-well cement demand remained strong The most dynamic U.S. market segments during the quarter were oil and gas sector Mexico sales during the quarter were primarily driven by demand related to industrial maquiladora plants and warehouse construction GCC AVERAGE SELLING PRICES, % CHANGE 8.2% MEXICO (PESOS) 13.5% 12.5% 10.0% Cement (per mton) Concrete (per m3) Q4-23 vs Q4-22 2023 vs 2022 Mexico cement prices include only domestic cement prices to exclude the effect of the exchange rate on cement exports 41#42SALES Million dollars Q4-23 Q4-22 Var 2023 2022 Var Consolidated 339.9 288.6 17.8% 1,363.9 1,168.3 16.7% U.S. 237.2 198.3 19.6% 938.3 840.6 11.6% Mexico 102.7 90.2 13.8% 425.6 327.7 29.9% U.S. SALES Favorable weather conditions boosted sales in Q4 Positive price environment across product lines Oil-well cement demand remained strong MEXICO SALES High demand for industrial real estate construction continues Positive market trends with a successful pricing strategy Benefit from the Mexican peso's appreciation against the U.S. dollar Percentage changes are based on actual results, before rounding GCC 42#43INCOME STATEMENT (MILLION DOLLARS) Q4-23 Q4-22 Var 2023 2022 Var Net Sales 339.9 288.6 17.8% 1,363.9 1,168.3 16.7% U.S. Mexico 237.2 198.3 19.6% 938.3 840.6 11.6% 102.7 90.2 13.8% 425.6 327.7 29.9% Cost of sales 210.1 194.0 8.3% 861.4 803.8 7.2% SG&A expenses 31.3 26.4 18.5% 119.4 96.1 24.2% Other expenses, net 2.3 50.1 -95.4% 6.6 50.6 -86.9% Operating Income 96.1 18.0 433.1% 376.5 217.7 72.9% Operating margin 28.3% 6.2% 27.6% 18.6% Net financing (expenses) 7.4 (0.1) n.m. 25.3 (18.3) n.m. Earnings in associates 0.1 0.8 -89.7% 2.2 3.3 -33.5% Income taxes (benefit) 28.6 14.2 101.4% 108.7 62.5 74.0% Consolidated net income 75.0 4.5 n.m. 295.3 140.3 110.5% EBITDA EBITDA margin *Percentage changes are based on actual results, before rounding 118.2 90.2 31.0% 472.4 361.6 30.6% 34.8% 31.2% 34.6% 30.9% 43 43 GCC#44FREE CASH FLOW (MILLION DOLLARS) Q4-23 Q4-22 Var 2023 2022 Var Operating income before other expenses 98.4 68.2 Depreciation and amortization 19.7 22.0 44.4% -10.3% 383.1 268.3 42.8% 89.2 93.2 -4.3% EBITDA 118.2 90.2 31.0% 472.4 361.6 30.6% Interest income (expense) 6.3 (6.3) n.m. 36.9 (5.2) n.m. Decrease (increase) in working capital 30.0 47.4 -36.8% (63.0) 25.2 n.m. Taxes (14.7) (9.6) 51.9% (73.5) (19.9) 269.1% Prepaid expenses (3.1) 1.9 n.m. (1.3) 0.4 n.m. Accruals and other accounts (9.2) (5.5) 68.1% (60.9) (33.3) 82.9% Operating Leases (IFRS 16 effect) (3.0) (2.6) 14.3% (12.1) (14.9) -19.2% Operating cash flow 124.5 115.4 7.9% 298.5 313.8 -4.9% Maintenance CapEx* (17.4) (6.2) 182.0% Free cash flow 107.1 109.3 -2.0% (64.8) (34.9) 233.7 278.9 85.8% -16.2% Strategic & Growth CapEx (21.4) (17.6) 21.4% Share repurchase (net) 1.2 (5.9) n.m. Debt amortizations net 0.0 0.0 0.0% (98.6) (61.5) (13.2) 0.0 60.4% (26.4) -50.0% (40.0) -100.0% Dividends paid 0.0 0.0 0.0% (24.6) FX effect 14.5 8.5 70.8% 35.2 (19.1) 11.4 28.7% 208.9% Initial cash balance 857.3 732.0 17.1% 826.2 683.0 21.0% Final Cash balance FCF conversion rate 958.7 826.2 16.0% 958.7 826.2 16.0% 90.6% 121.2% 49.5% 77.1% * Excludes growth and strategic capital expenditures ** Free cash flow conversion rate = free cash flow after maintenance CapEx / EBITDA Decreased free cash flow in Q4-23 reflects: • Higher working capital requirements • Higher maintenance CapEx • Higher cash taxes • Higher EBITDA generation • Higher interest income Decreased free cash flow in 2023 reflects: Higher working capital requirements • Higher cash taxes . Higher maintenance CapEx ⚫ Higher EBITDA generation Higher interest income GCC 44#45Total Assets Current Assets Cash Other current assets BALANCE SHEET (MILLION DOLLARS) Dec-23 Dec-22 Var 2,780.7 2,433.8 14.3% 1,299.7 1,107.4 17.4% 958.7 826.2 16.0% 340.9 281.2 21.3% Non-current assets 1,481.0 1,326.5 11.7% Plant, property, & equipment 1,148.7 1,002.3 14.6% Goodwill and intangibles 263.1 270.0 -2.6% Other non-current assets 69.3 54.1 28.0% Total Liabilities 1,016.4 1,010.0 0.6% Current Liabilities 268.4 289.5 -7.3% Short-term debt 0.0 0.0 0.0% Other current liabilities 268.4 289.5 -7.3% Long-term liabilities 748.1 720.5 3.8% Long-term debt 497.0 496.7 0.1% Other long-term liabilities 77.4 71.3 8.5% Deferred taxes 173.7 152.5 13.9% Total equity 1,764.3 1,423.8 23.9% GCC Net leverage (net debt/EBITDA) ratio totaled -0.99x as of December 2023 Cash and equivalents totaled US$958.7 million Based on the last twelve months of sales, as of December 2023, net working capital increased from 27 to 38 - a total increase of 11 days Earnings per share increased 112.4% year-on-year to US$0.9029 for the full year GCC repurchased shares in the net amount of US$13.2 million in 2023 45 45#464 GCC CONTACT: WWW.GCC.COM Maik Strecker, Chief Financial and Planning Officer [email protected] Sahory Ogushi, Head of Investor Relations [email protected] +52 (614) 442 3176 +1 (303) 739 5943