Practice Area

Antitrust

We advise domestic and international companies on all aspects of antitrust law in Mexico. Our practice covers merger control, antitrust investigations, strategic litigation, and preventive compliance counseling, with a technical, regulatory, and practical approach aligned with the highest standards of corporate governance.

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The Firm’s Antitrust Practice advises clients on all matters governed by the Mexican Federal Economic Competition Law. We have extensive experience securing merger authorizations before the National Antitrust Commission (CNA), as well as handling investigations involving monopolistic practices, unlawful and unnotified concentrations, market power, barriers to competition, and essential facilities.

A significant portion of our work involves acting as strategic counsel in high-impact litigation, including cases related to cartels (absolute monopolistic practices), abuse of dominance (relative monopolistic practices), and sector-wide investigations, as well as challenging resolutions before Mexico’s Specialized Federal Competition Courts.

In response to evolving ESG standards and stakeholder expectations, we also design and implement competition compliance programs as an essential component of corporate governance and internal risk control. These programs help companies identify conduct that could lead to anticompetitive risks, strengthen organizational structures, and enhance transparency and accountability.

Antitrust Services

We provide strategic legal counsel on all aspects of the Mexican Federal Economic Competition Law, combining litigation, transactional and regulatory capabilities with a preventive approach. Our team regularly advises domestic and international companies on highly complex, technically demanding matters, with particular focus on regulated sectors.
  • Merger Control: We advise on merger notifications and clearance proceedings before the competition authorities. Our experience includes multijurisdictional transactions requiring coordination with authorities in the U.S., Europe, and other key jurisdictions. We assist in negotiating commitments when necessary, bringing a technical, proactive, and business-oriented perspective to mitigate regulatory risks and ensure deal certainty.

  • Antitrust Investigations: We represent clients in investigations related to absolute monopolistic practices (cartels) and relative monopolistic practices (abuse of dominance). Our services cover the full administrative and judicial process—from the investigation stage to resolution and subsequent appeals.

  • Leniency Programs: We assist companies and individuals in all stages of leniency applications before the competition authorities, including risk assessments, cooperation strategies, negotiation of benefits, and compliance with ongoing obligations under the program.

  • Special Procedures: We represent economic agents in special procedures before the competition authorities, including declarations of market power, findings of barriers to competition, and essential facility designations. We also prepare and submit formal requests for competition opinions in regulated transactions and strategic projects.

  • Antitrust Litigation: We have strong experience in litigation arising from enforcement decisions by competition authorities. We represent clients both during the administrative procedure and in subsequent judicial review (amparo) proceedings before specialized federal courts, including the Mexican Supreme Court. Our strategy is based on deep knowledge of antitrust and constitutional law, as well as litigation procedures.
  • Damages Actions: We advise clients in damage claims arising from monopolistic practices. Our services include designing and executing a comprehensive legal strategy to either pursue recovery or defend against claims, covering both administrative and judicial proceedings.

  • Compliance Programs: We design and implement effective competition law compliance programs aligned with international standards and ESG principles. These programs are tailored to prevent regulatory risks, promote internal awareness, and ensure robust corporate controls.

  • Favorable Competition Opinions: We advise clients in obtaining favorable opinions in competition matters, including cross-ownership approvals in the energy sector and compliance assessments for public tenders.

  • Risk Assessments and Legal Opinions: We conduct preventive reviews of business structures, commercial agreements, and vertical or horizontal relationships. We issue legal opinions on antitrust risks related to strategic transactions, public tenders, and contractual arrangements, with the goal of ensuring regulatory certainty and minimizing exposure.

  • Advisory Services: We provide legal counsel to companies in a wide range of regulated industries—including pharmaceuticals, financial services, energy, technology and telecommunications, aviation, and railways—ensuring full compliance with the Federal Economic Competition Law. Our advice is tailored to the market dynamics, competitive structures, and specific regulatory features of each sector.

  • Industry Leadership: At Mijares, we promote initiatives that strengthen the antitrust ecosystem in Mexico and Latin America, positioning our team as a technical, academic, and strategic reference in the field.

Cliente satisfecho estrechando la mano con un abogado: Cliente feliz con servicio legal en Mijares, Angoitia, Cortés y Fuentes S.C.

Prizes

Our Firm has received several awards and recognitions that reflect our commitment to excellence and leadership in the legal field.

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Representative projects

Macquarie Asset Management México y China Mexico Fund

Ongoing | Mexico

We advise MAMM, CMF, and Altán Redes in securing IFT and Promtel approvals to appoint MAMM as general partner of CMF, while addressing regulatory challenges in the telecom sector.

Barclays

COFECE Investigation – Government Bonds | Mexico

We advised Barclays in COFECE’s investigation into alleged monopolistic practices in government bond trading, designing a comprehensive defense in a highly technical proceeding.

Federación Mexicana de Fútbol

Ongoing Investigation | Mexico

We’re advising the Mexican Football Federation in COFECE’s first investigation into alleged “no-poach” agreements in player transfers, a case that has shaped the debate on labor mobility in sports.

Grupo Casa Saba

MXN 70+ million | Mexico

We represented Grupo Casa Saba in COFECE’s investigation into pharmaceutical distribution practices, securing its exoneration and advising on related amparo and damages proceedings.

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Schlumberger (SLB)

Closed June 2025 | Global

We represented SLB before COFECE in securing clearance for its merger with ChampionX, demonstrating that the transaction would not harm competition in specialized markets.

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Hyatt Hotels Corporation

Closed December 2024 | Spain, Mexico, and the Dominican Republic

We advised Hyatt on the COFECE notification of its joint venture with Grupo Piñero to operate Bahía Príncipe resorts, managing the market analysis and clearance process.

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Nippon Steel

Closed June 20Closed June 2025 | Japan, U.S., European Union, and Mexico25 | Japan, U.S., European Union, and Mexico

We advised Nippon Steel and United States Steel Corporation in securing COFECE clearance for the transaction contemplated in their merger agreement.

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SDC Capital Partners

USD $50 million | United States and Mexico

Advised SDC Capital Partners on the development of high-capacity data centers in Mexico. Our counsel included environmental impact analysis, federal permitting, compliance before SEMARNAT, and coordination with state and municipal authorities.

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Copenhagen Infrastructure Partners

USD $9 billion | Denmark and Mexico

Advised Copenhagen Infrastructure Partners (GIP) on the development of a 759 MW wind farm in Mexico, including environmental impact assessment, key permits, and compliance strategy aligned with international standards.

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International Hotel Group

Confidential | Mexico

Represented a global hotel chain in environmental litigation following a closure order by authorities in a protected coastal zone. We successfully overturned the measure and redesigned the company’s environmental compliance strategy.

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Infrastructure Fund

Confidential | Mexico

Advised a specialized infrastructure fund on the environmental evaluation of a next-generation urban mobility system, including permitting, site analysis, community engagement, and alignment with environmental regulations.

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Manufacturing Company

Confidential | Mexico

Conducted a comprehensive environmental audit for a nationally operating manufacturing company, including hazardous waste regularization, NOM compliance, and support during PROFEPA inspections.

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Climate-Tech Start-up

Confidential | Mexico

Provided legal counsel and support to a climate-tech start-up securing sustainability-focused financing in the agricultural sector.

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Multinational Renewable Energy Company

Confidential | Mexico

Advised on potential sites and pre-feasibility studies to determine land use restrictions and territorial planning for the development of wind and solar farms.

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Bayer de México S.A. de C.V.

Prevention of Criminal and Anti-Corruption Risks in the Biotech Sector | Mexico

We advised Bayer on a comprehensive evaluation of its corporate criminal liability, with a focus on anti-corruption risks and the design of a robust Criminal Compliance Program. The project includes the development of internal criminal policies, controls to mitigate risks previously identified by its compliance team, and alignment with local and international regulations, such as Article 421 of the National Code of Criminal Procedure and the Law on Biosafety of Genetically Modified Organisms. Given the complexity of its operations and the sensitivity of the biotech sector, the model implemented positions Bayer as a benchmark in criminal liability and corporate governance in Mexico.

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Celulosa Arauco y Constitución (Arauco México)

Review of Crime Prevention Model | Mexico

We led a comprehensive review of Arauco México’s Crime Prevention Model, with a focus on environmental and criminal risks. We conducted an organizational diagnosis, proposed adjustments to their compliance policy, and delivered training sessions for their executive team. The project enhanced the company’s ability to anticipate and mitigate legal risks related to environmental criminal liability.

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Nova Energy Infrastructure (IEnova)

Prevention of Environmental Criminal Liability | Mexico

We advised IEnova on the design and implementation of an environmental criminal compliance system, in accordance with Mexican and international law. The model included risk assessments, crime prevention manuals, and awareness sessions for executives, focused on mitigating risks arising from third-party conduct. The solution aligns with UNE 19601, the Federal Environmental Liability Law, and U.S. DOJ standards.

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Citibanamex

Corporate Criminal Compliance Management System | Mexico

We designed and implemented a corporate criminal compliance management system for Citibanamex, aimed at mitigating legal risks through a structure adaptable to various areas of the bank. The model included operational controls, reporting protocols, incident response mechanisms, and a comprehensive internal training program. The solution was developed jointly with legal and corporate security teams and can be deployed both institutionally and by business division.

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México Pacific Limited

Anti-Corruption Training | Mexico and the United States

Designed and implemented a compliance program focused on anti-corruption and business ethics, including specialized training on Mexico’s National Anti-Corruption System and the FCPA for the board of directors, as well as on-site sessions in Hermosillo for suppliers, strengthening a culture of compliance across the value chain.

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Skadden, Arps, Slate, Meagher & Flom LLP

Regulatory Compliance | Mexico and the United States

Prepared legal memoranda for Skadden on compliance requirements under Mexican law, including analysis of registration and reporting obligations in interactions with employees and representatives of state-owned entities for transactions such as joint ventures and natural gas offtake agreements, as well as a memorandum on restrictions regarding gifts, meals, and hospitality, with practical recommendations to mitigate enforcement risk before Mexican authorities.

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Merger of four companies to create VEMO

We advised Riverstone on the creation of VEMO through the merger of four clean mobility companies.

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Acquisition of Ocesa by Live Nation

We advised Televisa on the sale of its 40% equity interest in Ocesa to Live Nation.

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⁠Representation of Planigrupo’s Special Committee in connection with offers by Grupo México and Acosta Verde

We represented Planigrupo’s Special Committee in connection with unsolicited acquisition offers, which led to an agreement with Grupo México.

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Public tender offer for Javer by Vinte

We advised Javer and its main shareholders on the tender offer launched by Vinte to acquire up to 100% of the company.

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⁠Combination of assets between Televisa and Univision

We advised Televisa on the combination of its media and content assets with Univision.

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Acquisition of Despegar.com by Prosus

We advised Prosus on its approximately USD 1.7 billion acquisition of Despegar.com.

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Spin-off of Alfa and creation of Controladora Alpek

We advised Alfa on the spin-off that resulted in the creation of Controladora Alpek as part of its corporate restructuring.

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Chantilly

Declaration of a Famous Brand before the IMPI

We obtained the Declaration of Fame for the “Chantilly” brand before the Mexican Institute of Industrial Property (IMPI), through a process that involved accreditation of experience, recognition, commercial presence and continuous use in the market.

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President Group

Copyright litigation and content retransmission

We advised Grupo Presidente on the conciliation processes with EGEDA, a collective management company for audiovisual rights, for the use of protected works on televisions installed in its hotel chain. The issue raises a key discussion about the scope of copyright in public spaces where content is not the main service.

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Valia Energy

USD 530 million | Closed in January 2024 | Mexico and the U.S.

We represented Valia Energía in its first international bond issue since 2020, backed by energy assets in operation.

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Copenhagen Infrastructure Partners (CIP)

USD 9 billion | Ongoing project | Mexico

We assisted CIP in the legal structuring of a pioneering green hydrogen project in the Isthmus of Tehuantepec, including permits, agrarian agreements, environmental licenses and relationships with key agencies such as CFE and PEMEX.

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Mexico Pacific Limited

USD 14 billion | Ongoing project | Multinational

We advise Mexico Pacific Limited on all regulatory and contractual aspects related to the development of a large scale natural gas liquefaction terminal.

See coverage in El Financiero

Material changes in mexican antitrust law

On June 30, 2025, the Congress of the Union approved a reform to the Federal Law on Economic Competition (the “LFCE”) that replaces the Federal Commission on Economic Competition (“COFECE”) and the Federal Institute of Telecommunications (“IFT”) [with regard to its powers in matters of economic competition and preponderance], with the National Antimonopoly Commission (“CNA”), a new decentralized body of the Ministry of Economy (the “Reform”).

From COFECE to the CNA: A New Chapter in Mexico’s Antitrust Policy

Mexico is entering a decisive stage in the evolution of its antitrust policy. With the recent reform to the Federal Economic Competition Law, the Federal Economic Competition Commission (COFECE) will give way to the National Antitrust Commission (CNA), a new institution that will assume an even more central role in market regulation.

Leniency Program and Increased Fines under the Reform to the Federal Economic Competition Law

The 2025 reform to the Federal Economic Competition Law, published in July of that year, substantially reshaped Mexico’s regulatory framework, strengthening both cooperation mechanisms and sanctions related to anticompetitive practices.

Team

The Firm boasts one of the strongest competition teams in Mexico.

A significant portion of our lawyers are internationally trained and consistently engage in complex merger control processes and complex litigations which are strategic for our clients.

The Firm's transactional strength contributes making our competition team one of the most active in the market, thereby gaining unique experience to provide comprehensive and innovative approaches to our clients' transactions.

Our team includes a specialized group of litigators in competition/antitrust matters, enabling us to provide our clients with comprehensive advise at all stages of administrative and judicial proceedings.

MIJARES, ANGOITIA, CORTÉS AND FUENTES

WE STAND OUT AS PIONEERS

AND LEADERS IN OUR FIELD,

ALWAYS AT THE FOREFRONT.
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News

legal news and updates

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Get information about everything related to the legal world, news and client alerts.
November 27, 2025
On November 24, 2025, the Ministry of Labor and Social Welfare (“STPS”, per its acronym in Spanish) issued the “Subcontracting Inspection Protocol” (the “Protocol”) which establishes the guidelines and procedures for monitoring and enforcing labor regulations applicable to subcontracting in Mexico.
November 26, 2025
The reform to the Federal Economic Competition Law, published in the Federal Official Gazette on July 16, 2025, substantially reshaped Mexico’s regulatory framework.
November 26, 2025
The use of artificial intelligence (AI) in the judicial sphere has ceased to be a theoretical hypothesis to become a tangible reality in Mexico. A recent ruling by the Second Collegiate Civil Court of the Second Circuit, from which isolated thesis II.2o.C.9 K (11a.) derives, establishes for the first time the ethical and methodological parameters for its application in judicial proceedings.
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