First Quarter 2021 RESULTS Mexico City, April 27, 2021 Grupo México, S.A.B. de C.V. (“Grupo México” “GMéxico” - BMV: GMEXICOB) As we have maintained the strictest protocols against COVID-19 throughout the pandemic, during the first quarter, we achieved excellent financial and operating results in the Group. We kept production levels in the Mining Division above the guidance provided at the end of 2020, and showed volume growth in the Transportation Division, even though the 2020 comparison base does not include the effects of COVID-19. First quarter 2021 revenues reached a record US$3.43 billion, 40.2% higher than in 1Q20, and 6.8% higher than in 4Q20. The Mining Division achieved record sales of US$2.80 billion in 1Q21, 56.1% higher than in 1Q20, as copper sales increased by 2.4% and we kept the volumes produced in line with the previous year, as well as increases in the prices of copper (+50.2% Comex), Molybdenum (+17.0%), Zinc (+28.9), Silver (+55.8%), and Gold (+13.6%). In the Transportation Division, sales fell 2.1% during 1Q21 totaling US$593 million, mainly because of an impact due to the exchange rate, as volumes grew 2.3% and sales in pesos had a slight increase. Sales rose 9.6% against 4Q20. The Infrastructure Division achieved accrued net revenues of US$148 million, an 8.3% increase during 1Q21, and 8.4% higher than in the previous quarter. Due to the strict protocol, we have implemented in health and safety in the face of the COVID-19 pandemic and despite the very complicated environment, we managed to keep copper production practically in line, totaling 271,312 tons, 0.5% below 1Q20, because of a 3% decrease in production in Peru's operations due to lower ore grades, which was partially mitigated by increases in IMMSA (+9.5%) and in ASARCO operations (+7.3%). In the Mining Division, we achieved a reduction in net operating cash cost globally from US$0.93 to US$0.88, due to higher prices of other metals. Thus, we reiterate the best cost in the copper industry worldwide, and our capacity to maintain efficiencies despite restrictions imposed due to the COVID-19 pandemic. Moreover, we remain ranked in first place worldwide in copper reserves. As a result of an intensive investment program of more than US$18 billion and an operating scheme that maximizes efficiencies, as well as the work enabled by thousands of specialized collaborators at our mines, we succeeded in increasing copper production from 688 thousand to 1.13 million tons in the last 10 years. This cycle of high metal prices enabled us to materialize this, generating a record EBITDA of US$2.13 billion in 1Q21, 99.7% higher than in the same quarter of last year and 23.3% above 4Q20. The Mining Division reached US$1.8 billion in EBITDA, 158.4% higher than in 1Q21 and 26.4% higher than in 4Q20. The Transportation Division obtained an EBITDA of US$264 million during the quarter, with a 6% decrease, but showing a 12.8% recovery against 4Q20. In the Infrastructure Division, EBITDA was US$60 million during 1Q21, US$20 million lower compared to 1Q20 and 5.9% lower than in 4Q20. This is mainly due to a foreign exchange loss in peso-denominated debt and lower platform fees. Consolidated net profit for 1Q21 totaled US$1.03 billion, also a result of our extensive capital investment plan of previous years. Capital investments during 1Q21 were US$337 million, +39.5% due to additional progress in growth projects. Our 2021 capex program is a US$2.1 billion plan in different projects across the Three Divisions that will be the source of economic reactivation and employment generation insofar as the pandemic allows. gmexico.mx FIRST QUARTER 2021 RESULTS Dividend. - On April 23, 2021, the Management Board declared the payment of a cash dividend of $1.50 pesos per share outstanding, to be made in a single installment as of May 27, 2021. This dividend implies an annualized dividend yield of 5.89%, similar to yields in previous quarters. First Quarter Variance (Thousand US Dollars) 2021 2020 US$000 % Sales 3,434,916 2,449,878 985,038 40.2 Cost of Sales 1,322,081 1,333,826 (11,745) (0.9) Operating Income 1,700,007 707,263 992,744 140.4 EBITDA 2,139,387 1,071,138 1,068,249 99.7 EBITDA Margin (%) 62.3% 43.7% Net Income (Whitout equity securities) 1,171,180 335,094 836,085 249.5 Net Income 1,030,948 (237,342) 1,268,291 (534.4) Profit Margin (%) 30.0% -9.7% Investments / Capex 336,746 241,343 95,403 39.5 All figures in US dollars (“US$”), currency of the United States of America, under U.S. GAAP, except where otherwise stated. For purposes of showing the performance of our operations, we are including the concept of earnings before shareholdings. Net profit includes share gains/losses, as well as the effect on deferred taxes. 2 FIRST QUARTER 2021 RESULTS Relevant Events Grupo México Grupo México is the third largest company in the country in terms of market cap and the fourth in marketability. It is the first company in tax payments and the first one in profit sharing in Mexico and Peru. It has generated over 29,400 direct jobs in 2020, and over 110,000 indirect ones, with high training and good pay. Grupo Mexico is the fifth copper producer worldwide, with the lowest cash-cost in the global industry, and it has the largest copper reserves in the world. Current COVID-19 Situation.- Under the premise that joint accountability between governments, companies, and society is essential for the protection of all and to ensure economic growth and social development, Grupo México has collaborated in solidarity with the efforts of authorities in Mexico and Peru, especially with the vaccination logistics in communities where the company is present. We believe that the efforts made by the Government of Sonora (Mexico) to implement the vaccine are a key positive event for our operations. Through this vaccination plan, 100% of the medical staff of our operations have already been vaccinated. In addition, 98% of our staff over the age of 60 in Cananea and 100% in Nacozari have been vaccinated, too. This significant progress protects our staff from becoming infected with COVID-19 and allows them to have peace of mind for themselves and their families. It also allows the company to start operating normally at its facilities. The company is contributing to the vaccination plan by providing logistics support. The donation of medical supplies in Mexico and Peru, amounting to US$2.2 million, has been continued, emphasizing regions where COVID-19 infections have increased, including areas where the company does not have an operational presence, but where the health situation has warranted it. In the case of Peru, given the increased demand for medical-grade oxygen, Fundación Grupo México and the Ilo Smelter signed a contract for the donation of 2 thousand 500 tons of liquid oxygen. Moreover, the Community Development model continues to strengthen its virtual offer of cultural, sporting, and recreational workshops for the general population. In the first quarter of the year, 1,095 new workshops of the more than 5 thousand held since the beginning of the pandemic were added, while the eleven schools sponsored by the company serve 3,756 students online in Mexico and Peru. All Grupo México’s operations continue to apply rigorous health security protocols aimed at preventing infection and generating safe environments for work. Testing is still a routine operating procedure. 3 FIRST QUARTER 2021 RESULTS ESG.- Sustainability is a key pillar of Grupo México's business model; we remain committed and moving towards the adoption of best practices. For the fourth consecutive year, Grupo Mexico is included in the Dow Jones Sustainability Index MILA (Integrated Markets of Latin America, including publicly traded companies based in Mexico, Peru, Chile, and Colombia). The company’s 2020 rating in the annual Corporate Sustainability Assessment (CSA) by S&P Global increased to 56 points (a 4-point improvement vs. 2019). We are pleased to report that the company’s sustainable development policies have been updated and are available for viewing on Grupo Mexico’s website. These policies, applicable to all divisions and subsidiaries of Grupo Mexico, formalize the company’s vision, commitments, and objectives to promote sustainable development and the generation of shared value with stakeholders. 2020 was a year of good performance in safety and occupational health: there were no fatalities in the mining and infrastructure divisions, and the accident and days lost rates decreased significantly by 44% and 78% in the mining division, compared to 2019. Minera Mexico also received 3 of the 6 awards (Casco de Plata) from the Mexican Mining Chamber for its performance in safety and occupational health. 4 FIRST QUARTER 2021 RESULTS Relevant Events Mining Division Projects Throughout the years, we have proven that the Group’s investment philosophy is not based on copper price outlooks, but on the quality and efficiency of the assets that we operate and develop. We continue to focus on being the cost leaders in the global industry, and on operating with the efficiency and financial discipline that is our hallmark. Projects in Mexico Buenavista Zinc, Sonora. - This project is located within the Buenavista deposit in Sonora and comprises the construction of a concentrator with a production capacity of 100,000 tons of zinc and 20,000 additional tons of copper annually.