International trade and customs in Mexico

Baker McKenzie Abogados, S.C.

With ‘a very strong foreign trade practice that exceeds the usual standards’, Baker McKenzie Abogados, S.C.‘ six-partner department remains at the forefront of international trade matters in Mexico, focusing on customs and customs planning, export controls and sanctions, and anti-dumping and WTO matters. Particularly solid in litigation, the team is co-led from the Ciudad Juarez office by Manuel Padrón, who is an expert in maquiladora matters; and Mexico City-based partner Adriana Ibarra, whose broad practice encompasses rules and verification of origin (and related subjects in terms of FTAs); tariff classification and customs valuation; and consumer protection and labelling, as well as other non-tariff import regulations. Peers note she is a ‘well-established authority in this area’. Other noted practitioners include customs litigator Armando De Lille in Monterrey; Daniel Sanchez-Elizondo, in Guadalajara (who mainly handles foreign trade permits, free trade agreements and tariff classifications); and Jorge Ambriz in Juarez, who was promoted to partner in January 2021. José Hoyos, who has a particular punch advising on NAFTA verification; and senior associates Andrea Diéguez and Verónica Rejon, all in Mexico City, are also noted. Since publication, Diéguez has been promoted to counsel - effective January 2022.

Practice head(s):

Manuel Padrón-Castillo; Adriana Ibarra-Fernández


‘The group responds nearly instantly with quick but very thorough analysis. Adriana Ibarra-Fernandez is smart, personable, trustworthy and executes flawlessly.’

‘A very strong foreign-trade practice that exceeds the usual standards. The work is always of a very high quality.’

‘They are used to dealing with global manufacturing companies and companies with a US/publicly-listed orientation.’

‘Adriana Ibarra-Fernandez is fantastic.’

Chevez Ruiz Zamarripa

Chevez Ruiz Zamarripa strikes the right note with its top tier, 13-strong practice, which perfectly combines its strong expertise in international trade and customs work with the firm's exceptional tax offering, particularly for contentious matters. The department, which has recently seen an increase in supply chain-related work, handles primarily tariff classification and customs valuations, non-tariff restrictions and international contracting regulations, along with tax and customs authorities' audits. It is co-led by customs litigation experts Guillermo Sánchez and Ricardo Romero, with further partner-level support from Eduardo Díaz (who has a close focus on anti-dumping matters), and Gerardo Canseco (whose practice takes in import and export -and IMMEX- procedures, VAT and excise tax certification, FTAs, rules of origin, compliance and all trade and customs-related disputes).

Practice head(s):

Guillermo Sánchez Chao; Ricardo Romero

Work highlights

  • Advised a trading company on how to obtain important balances in favour of the general import tax, generating an important refund under NAFTA rules.
  • Advised a client on the design of the group’s foreign trade operation, regulatory compliance and obtaining tariff deferral programs.
  • Advised various manufacturing companies on different audits by customs authorities at Federal and State level, in relation to the determination of the customs value of goods.

EC Rubio

Mexican law firm EC Rubio offers one of the most robust practices in the market. The outstanding, 13-strong team is renowned for representing a notable roster of clients across the full range of matters related to international trade, from minor filing and compliance matters to international dispute settlement proceedings; as well as for its leading capabilities handling trade remedies mandates, including anti-dumping investigations and countervailing duties. Operating from Mexico City, partners Eduardo David and Juan Carlos Partida focus primarily on trade-remedy issues as well as administrative customs proceedings; while the partners in Ciudad Juárez, Fernando Holguín (whose work ‘is close to perfection’), and Felipe Mendoza regularly act for clients from the maquiladora and export industry, advising on -among other matters- all aspects of the IMMEX programme. Additional partner-level input is provided by Mexico City-based partner Arturo Bañuelos.

Practice head(s):

Juan Carlos Partida; Felipe Mendoza


‘They stand out for the personalised attention of the partners and members of the firm, their willingness and ability to provide support at all times at reasonable costs, in addition to the excellent quality of their services.’

‘Juan Carlos Partida is always available and always has a great legal judgment to solve the problems raised by the business perspective the client faces.’

‘Arturo Bañuelos has excellent criteria for business support, always with a broad vision to evaluate not only the problem but also the possible collateral effects. Very good legal criteria.’

‘They have a very accessible billing and system, very easy to review.’

‘Arturo Bañuelos and Eduardo David are polite, knowledgeable, and professional.’

‘It is a service of quality, efficiency and legal effectiveness. Fernando Holguin Casas is really good at customs and tax work. He is very practical, very experienced, truthful, responsible, a good negotiator, competent and a pleasure to work with – his work is close to perfection.’

Key clients


TE Connectivity


Wire Masters

Regal-Beloit Corporation

OshKosh Corporation

Lipman Family Farms

Avery Dennison

Akra Polyester

Gränges International

Work highlights

  • Advised Foxconn regarding its customs and international trade structures (with certain additional tax implications), from the maquiladora structure to all the assets, material structures and customs implications with all its sub-manufacturers in Mexico.
  • Advised TE Connectivity on the merger and consolidation of seven industrial facilities.  
  • Counseled Akra regarding the filing of a petition to initiate an antidumping investigation on imports of polyester texturized yarn from China and India.

Vázquez Tercero & Zepeda

Top-notch boutique firm, Vázquez Tercero & Zepeda is a force to be reckoned with in the international trade and customs arena, particularly regarding anti-dumping investigations and the maquiladora industry; it is a particularly popular choice for clients from the Asian market. Indeed, recent work highlights include representing a Taiwanese exporter in the anti-dumping investigation on stainless steel from Taiwan and China. The sizeable practice, which regularly handles matters across the full breadth of the practice (primarily: trade policy, customs compliance, regulatory matters, customs litigation, and tax planning and litigation), houses a number of deeply experienced practitioners including: trade-disputes expert Adrián Vázquez; Emilio Arteaga Vázquez in Mexico City, who specialises in anti-dumping investigations; and Guadalajara-based partners Eduardo Zepeda (who has a robust knowledge of the IMMEX / maquiladora industry matters), and skilled litigator Eduardo González. Support comes from key associate Mariana Malvaez. Notably, in addition to the aforementioned offices, the firm also operates from León, Monterrey, Puebla, Reynosa, Matamoros, Tijuana and Los Cabos, and has a trade promotion and investment office in Hong Kong.

Practice head(s):

Adrián Vázquez; Eduardo Zepeda; Eduardo Gonzalez


‘They are like the encyclopaedia of foreign trade, there is no subject that escapes them. They give notice of anti-dumping investigations when they publish them in the DOF.’

‘They do an extraordinary job handling dumping cases. They practically work magic. Adrian Vázquez is someone very reliable with whom I work with on everything that comes in on the subject.’

‘Adrian Vázquez and his entire team have our full confidence and we trust 100% in what they recommend us to do.’

Key clients

The Dow Chemical Company / Dow Química Mexicana

Lee and Li

Beijing Jingcheng Tongda & Neal Law Firm

Promotora Nacional Agropecuaria

Novolipetsk Steel (NLMK)

DHH Law Firm (Deheng)

W&H Law Firm

Hilos A&E de México

Hyundai Steel Corporation




Grunfeld, Desiderio, Lebowitz Silverman & Klestad (GDLSK)

Work highlights

  • Represented a Taiwanese exporter in the antidumping investigation concerning stainless steel from Taiwan and China, obtaining a low antidumping duty in the final determination.
  • Representing The Dow Chemical Company in the antidumping investigation on triethanolamine from the USA.
  • Representing the Dow Chemical Company and Dow Química Mexicana in a NAFTA origin-verification procedure.

Galicia Abogados S.C.

Partners Daniel Amézquita (who divides his time between administrative / constitutional litigation and IT&C matters), and Mario Valencia, who is always ‘involved down to the smallest detail’, and is renowned for his work in contentious customs and tax matters, co-head the practice at Galicia Abogados S.C., which reaps praise for its ‘extensive experience in foreign trade regulations and solid understanding of the subject’. The nine-strong group regularly advises clients from the energy, pharmaceutical, automotive, telecommunications, chemical, e-commerce and retail industries, on maquila (IMMEX) and PROSEC programmes, certified companies, VAT certificates, quotas, certifications, licenses, import and export permits; tariff classifications and compliance with tax and customs obligations, as well as anti-dumping and subsidies investigations, litigation and arbitration processes, and FTA negotiations. A strong second line of associates includes José Andrés Muñiz, Fernando Rodriguez and Sheidel Francioli.

Practice head(s):

Daniel Amézquita; Mario Valencia


‘They are distinguished by their extensive experience in foreign trade regulations and restrictions with a very solid understanding of the subject.’

‘Empathy, human quality, professionalism and experience are the main qualities of Mario Valencia and Sheidel Francioli.’

‘They offer a multi-task understanding of the subject, which helps us to understand the legal and business implications of the proposed strategy, and also gives them a competitive advantage over other purely accounting and/or tax firms.’

‘Mario Valencia and José Andrés Muñiz are always involved down to the smallest detail, they have been available in every emergency where we have even needed them.’

‘Even though they are a large and well known firm, the attention they have given us has always been first class. They are very accessible in their proposals without skimping on quality and attention to detail.’

‘Mario Valencia has shown us that he has a very good practice.’

Key clients

FCA Mexico

Stepan Mexico

Sura Asset Management Mexico

Alexander Dennis México


Purolite Corporation and Purolite Mexico

BayWa re Solar Systems

Tata Consultancy Services

Carrier Mexico (UTC)



B&G Foods

Sunpower Corporation

Vestas WTG Mexico

Carestream Dental



Asociación Mexicana de Energía Solar Fotovoltaica

AT&T Mexico

Tiendas Chedraui


Sunglass Hut de Mexico

Work highlights

  • Represented Carrier Mexico in audit process initiated by the tax authorities (SAT) to review its import operations, as well as in a parallel administrative procedure in customs matters.
  • Representing Stepan Mexico in an antidumping investigation against the importation of triethanolamine from the United States of America.
  • Advised Purolite Corporation regarding an administrative appeal filed directly by the company to provide additional evidence supporting the NAFTA origin of the resins it exports.

Jáuregui y Del Valle, S.C.

The ‘highly-specialised’, six-strong practice at Jáuregui y Del Valle, S.C. is recommended for its in-depth knowledge and vast experience of virtually every aspect of international trade and customs, especially anti-dumping and countervailing duties, while also skilfully handling multilateral and bilateral trade agreements, and other aspects including market access, trade policy, preferential trade regimes, customs compliance, trade compliance and trade remedies, and litigation. The experienced David Hurtado heads the department, closely supported by senior associate, Julia García de Acevedo, who has notable expertise in dumping, customs, and health-related international commerce.

Practice head(s):

David Hurtado Badiola


‘They are a highly-specialised and trained team. They carry out timely case follow-up and good case reporting.’

‘They have extensive knowledge and training.’

‘They send us regulatory updates via email.’

Key clients

Almidones Mexicanos

Internacional de Cerámica

VBO Messico

Ryerson Metals de México

Mount Vernon Mills

Ferrero de México


Berwind Corporation

Synergy CHC Corp

Caplugs México

Indorama Polymers

Work highlights

  • Advising Almidones Mexicanos on trade-related matters with regards to the potential impact of USMCA and other international agreements; as well as on the Value Added Tax applicable to food imports into Mexico.
  • Advising VBO Messico regarding the importation of lighting products into Mexico.
  • Advising Ferrero de México on trade, customs and health labeling matters regarding the importation and exportation of chocolates and other products.

SAI Derecho & Economía S.C

Boasting a ‘highly competent’, five-strong practice, SAI Derecho & Economía S.C handles a broad range of mandates ranging from general consulting work regarding market conditions, through to more specific legal matters such as anti-dumping and FTA-related issues - both sub-specialties where the team has particular expertise. Partner Beatriz Leycegui, who always ‘exceeds expectations’, has been involved in international trade matters for many years, particularly in relation to anti-dumping and free trade agreements regulations (especially NAFTA), and is regularly sought out by domestic and international companies, business organisations, as well as governments at the federal, state and foreign levels. Senior associate María Cristina Hernández Zermeño is another name to note.

Practice head(s):

Beatriz Leycegui


‘They are very wise in their judgement and propose viable solutions. Their proposals are very practical and the information they provide is current and useful.’

‘The firm is highly competent. SAI’s lawyers are totally accessible and can be contacted at any time to clarify any doubts or make any queries, as well as being punctual in the delivery of the work entrusted to them.’

‘They provide a very personalised service and always go the extra mile. Service that exceeds expectations, especially Beatriz Leycegui.’

‘The practice stands out for its diversity, good collaboration between team members and for staying at the forefront of legislative or regulatory changes, being pioneers in designing schemes to adapt transactions to regulatory issues.’

Key clients

Amerra Capital Management


Work highlights

  • Advised Amerra Capital Management and other investors on the initiation of an arbitration proceeding against the United Mexican States, regarding the Mexican judiciary’s possible violation of the North American Free Trade Agreement.
  • Advised CMSA and its Mexican subsidiary Contecon Manzanillo on the initiation of an arbitration proceeding against the United Mexican States, for the Mexican Government’s potential violations to the Bilateral Investment Treaty between Netherlands and Mexico.

Sánchez Devanny

The experience and skills of two international trade experts guides the nine-strong practice at Sánchez Devanny. Turenna Ramirez handles strategic planning of trade and customs matters along with litigation, and specialises in international treaties (including NAFTA), customs audits, export-promotion programmes (including IMMEX) and verification-of-origin processes, while fellow partner José Alberto Campos has broad expertise in tax and regulatory matters, including tariff and non-tariff requirements and export controls, as well as significant experience in free trade agreements executed by Mexico. Additional expertise comes from skilled litigator Eduardo Sotelo; and senior associate María Luisa Mendoza, whose practice is centred on IT&C matters mainly in relation to the energy, health and life science sectors.

Practice head(s):

Eduardo Sotelo-Cauduro; José Alberto Campos-Vargas; Turenna Ramírez-Ortíz

Key clients

Embotelladora Niagara

American Eagle Outfitters

Clopay Building Product

Bredero Shaw Mexico

Ainsworth Game Technology

Sharp Corporation Mexico

Festo AG

Marubeni de Mexico

Nippon Seiki de Mexico

Essity Higiene y Salud

Work highlights

  • Representing in an official audit procedure initiated by the SAT, in relation to temporary importations of raw materials conducted by the company through a Maquila (IMMEX) model.
  • Advised the client in connection with possible alternatives for the importation of raw materials used in the manufacturing of finished food products.
  • Advised the client and represented it in litigation in connection with the requirements to import diverse raw materials and finished goods subject to import requirements by the Mexican authorities.

A. Michel

April 2021 saw the entire international trade and customs team at SMPS Legal spin off to form specialist boutique A. Michel. The new firm has yet to fully prove itself in the market but already boasts a strong track record, particularly thanks to managing partner Alexis Michel, a renowned expert in the field who garners praise for handling contentious and non-contentious matters related to customs obligations, anti-dumping investigations and the coordination and implementation of foreign trade and customs strategies. He is closely supported by senior associate Pilar Córdova, whose primarily advisory practice has a strong regulatory compliance component.

Practice head(s):

Alexis Michel

Basham, Ringe y Correa, S.C.

Drawing from the expertise of the firm's sturdy tax department, Basham, Ringe y Correa, S.C. has established itself as a solid competitor in the international trade and customs arena. Experienced practitioner, Sergio Barajas, currently President of IMECE (Instituto Mexicano de Ejecutivos en Comercio Exterior), heads the five-strong department, which has a focus on customs procedures, WTO and NAFTA-related treaty issues, IMMEX-related matters, audits, verification of origin, administrative procedures and foreign trade strategy for new operations, among other specialties. Key support is provided by senior associate Roberto Serralde, who has vast expertise regarding lobbying and governmental negotiations related to foreign trade matters concerning the automotive, electric, retail and chemical industries.

Practice head(s):

Sergio Barajas

Key clients

Grupo Idealsa

Tesa Tape México

IMM Research México

Hogan Lovells

International full-service giant, Hogan Lovells' Mexican IT&C department is divided into two primary sub-practices: international trade/WTO procedures and customs matters. Managing partner Juan Francisco Torres and the talented Jorge Yañez (who is notably skilled on trade compliance and anti-dumping), focus on the international trade (dumping and subsidies) side, while fellow practice co-head Arturo Tiburcio sits at the helm of customs matters (closely supported by Yañez). A regular advisor to clients across a wide range of industries -including food and beverage, automotive, electronics and aviation- the practice also houses a number of other noteworthy members, including senior associate Mario Lara, who handles consultancy, litigation and administrative procedures, more specifically focusing on anti-dumping matters, tariff classification, customs compliance and regulations; and intermediate associate Brianda Ramirez.

Practice head(s):

Mario Jorge Yáñez; Juan Francisco Torres-Landa; Arturo Tiburcio


‘They are well versed in current customs laws, as well as any reforms that arise and impact industries.’

‘They are involved in many anti-dumping applications. They are lawyers who are always available and quick to respond to any issues.’

‘The team keeps us up to date on reforms and enforcement in the various industries.’

Key clients

Mccord Payen de México

MTD Products

Sage Automotive Interiors Inc


AdvanSix Inc

Harman de México

Petibone Traverse

Arrow Components Mexico

Arrow Electronics Inc

Idexx Operations, Inc


BCI Surface Technologies Mexico

Pilgrim’s Pride Corporation

Nissin Foods de México

Gerdau Corsa

Cerraduras y Candados Phillips

Ternium México

Rockwell Automation de Mexico

Harman International México

Griffith Foods

Gates de México Services

Work highlights

  • Secured the renewal of Harman de México’s VAT certification, which reflects on a relief of payment of import VAT valued on MX$200m per month.
  • Representing the interest of AdvanceSix (subsequent to its purchase of the resins and chemicals division of Honeywell International), in an ongoing NAFTA Chapter XIX panel review.
  • Representing Sidertul in the procedures examining the continuation of anti-dumping duties (Sunset) on imports of reinforced steel bars from Brazil.

Holland & Knight

The sturdy, four-strong practice at Holland & Knight continues to bolster its footprint in the international trade and customs arena thanks to steady growth over the last couple of years, and its dexterity handling a wide range of matters, including NAFTA verification-of-origin and renegotiation procedures, imports and exports, and WTO disputes and permits, among others. Heading the team are Luis Rubio, a seasoned practitioner in the area who is also well-known for his strength in corporate and transactional matters; and Carlos Vejar, who has a lengthy trajectory in both the public and private sectors (he worked at Mexico's Ministry of Economy -SE- for over 20 years), and garners praise from peer for his capabilities in investment arbitration.

Practice head(s):

Luis Rubio Barnetche; Carlos Véjar

Key clients





Posco México

Work highlights

  • Advised Ashcroft on the process of incorporating a new company and obtaining IMMEX authorisation and VAT certification.
  • Advised Posco México regarding the legal and trade consequences of the USMCA renegotiations and the company’s position in the United States of America.  
  • Advised Coilplus on the due diligence process regarding an IMMEX authorisation and the legal possession of fixed assets and raw materials imported under its IMMEX authorisation.

Ramos, Ripoll & Schuster

Operating from offices in Mexico City and Veracruz, as well as its Guadalajara (Jalisco) base, Ramos, Ripoll & Schuster has a full service IT&C practice led by sector veteran Edmundo Elías Fernández, who has over 30 years’ experience across the spectrum of customs and international trade matters. On the contentious side, arbitration-focused partner Ruben Darío Gómez also handles international trade proceedings and litigation. The six-strong team handles FTAs, import/export issues, audits, and regulation and compliance, as well as all associated litigation. Recent matters include advising on procedures before PRODECON in relation to General Administration of Foreign Trade Operation’s audits; verification of origin audits; Administrative Procedure in Customs Matters (PAMA) investigations and audits; revocation recourses; VAT-on-imports controversies and general customs and tariff advisory, among other matters. However, January 2020 associate-hire Pablo Licéaga left in March 2021 to establish his own firm.

Practice head(s):

Edmundo Elías-Fernández

Santamarina y Steta

The ‘highly qualified team’ at Santamarina y Steta continues to strengthen its presence in the international trade and customs sphere, thanks to its powerful skills handling a broad range of matters, particularly regarding the structuring of operations in line with customs obligations, FTAs, IMMEX (the maquiladora system), tariff and non-tariff matters, taxation, anti-dumping, verification-of-origin procedures, and associated disputes. Experienced partners Alejandro Luna and Ernesto Duhne head the department, which has earned a good reputation among multinational companies in the automotive, health, technology, aerospace, marine, pharmaceutical, retail and agro-industrial sectors. Associate Michel Zelaya, who has a ‘good handling of complex issues’, is another key asset of the practice.

Practice head(s):

Alejandro Luna; Ernesto Duhne


‘It has highly qualified team. Michel Zelaya has a great experience and good handling of complex issues.’

‘The processes are clear and the accompaniment is always of excellent quality, with the client’s satisfaction at heart.’

Key clients

The Hershey Company

Siemens Healthcare Diagnostics

General Motors de México

Siemens Energy

Martinrea Group

Stryker Corporation

Kering Americas

ACCO Brands

Inteva Products

Crown Equipment

Chevron Corporation

Alfa Laval

Movado Group

Westinghouse Air Brake Technologies Corporation (Wabtec Corporation)

ITW Food Equipment

John Deere Sales Hispanoamerica

Precision Inc

Moldex-Metric, Inc

Work highlights

  • Advised TWB de México regarding compliance with the rules of origin for automotive parts as established under the USMCA agreement.
  • Assisted Moldex-Metric regarding the importation of N95 Air Wave Series Particulate Respirators, during the Covid-19 pandemic.
  • Advised General Motors regarding prior import permits to introduce gasoline into Mexico under the fiscal deposit regime.

Von Wobeser y Sierra, SC

Praised for his ‘impressive ability to simplify the most complex problems as well as to propose practical and low-cost solution’, Luis Miguel Jiménez heads the seven-strong international trade practice at Von Wobeser y Sierra, SC, which is a preferred choice for some big names from the automotive, consumer goods, food and life sciences industries. Jiménez, who has been assisting clients establish and operate their enterprises in Mexico for over two decades, handles compliance with the regulatory and legal provisions concerning international trade, customs regimes, and all local tax implications arising from such operations. Key associate support is provided by senior María de Lourdes Salazar, who covering a broad range of matters related to IMMEX and Prosec programmes, as well as handling VAT certifications.

Practice head(s):

Luis Miguel Jiménez


‘They are quick to respond, accurate and proactive in reporting any legal changes that could impact the operation.’

‘Luis Miguel Jimenez has an impressive ability to simplify the most complex problems as well as to propose practical and low-cost solutions, avoiding wherever possible, incurring unnecessary litigation and expenses. ’

Key clients


BMW de México

Yokohama Industries Americas de México

Kuka Systems de México

Dyson Technology de Mexico

Cervecería Modelo de México

Takata de México

Freudenberg North America Limited Partnership

Cintas Corporation

Krispy Kream México

Newell Brands de México

Talma México Servicios Aeroportuarios

Takata de México

Work highlights

  • Advised Polaris on whether the recreational cars it assembles at its Mexican Manufacturer may be considered part of the Mexican Automotive Industry with the purpose of determining whether the company could continue its operations.
  • Assisted BMW de México implement the new regulations on Mexican Standards applicable to the import into Mexico of vehicle spare parts and whether BMW was subject to compliance or not at customs clearance.
  • Assisted Voestalpine Rotec North America understand whether a recently implemented export permit applicable to certain Mexico-produced steel products would apply when exported to the USA.

Foley Arena

The well-versed practice at Foley Arena has a particular focus on the automotive, food, and steel industries. Key figure Marcos Carrasco, who provides specialised advisory and consulting services related to international trade compliance, customs, FTAs, customs litigation and taxation on foreign trade, also has broad expertise on the implementation of governmental export-programmes and regarding customs valuation. He co-leads the team with Alejandro Gómez, who brings his strong knowledge on anti-dumping matters to the practice.

Practice head(s):

Marcos Carrasco; Alejandro Gomez

Jones Day

Of counsel Mauricio Llamas and counsel Javier Cortés, who boasts over 25 years’ experience in custom duties and maquila-related work, including their tax implications, along with consumer protection, litigation and life-science regulatory issues, head the five-strong international trade and customs practice at Jones Day. The department, which can draw on the resources and expertise of the firm’s global network, is a regular advisor to domestic and international clients from across the manufacturing, maquila, retail, automotive, pharmaceuticals, mining and energy sectors on a wide range of trade matters, with a special focus on the maquiladora segment, regulatory matters, FTA mandates and litigation.

Practice head(s):

Mauricio Llamas; Javier Cortés

Key clients

Bombardier Inc.

Alta Growth Capital (Mexico)

Rivulis Irrigation

Reebok de México

Husqvarna Professional Products


Andeavor (formerly Tesoro Corporation)


JinkoSolar Holding

Alstyle Internacional de Mexico

Work highlights

  • Assisting Bombardier with maquila operations and trade and customs procedures, as well as labour law and environmental issues.
  • Advised Rivulis Irrigation on securing proper customs classification of the products to be imported.
  • Advising Alta Growth Capital on foreign trade and the identification of foreign trade risks resulting from the acquisition of a maquiladora company.

López Portillo Consultores, S.C.

Managing partner Horacio López Portillo runs a sturdy one-man show at boutique firm López Portillo Consultores, S.C. His many years of experience in the field have established him among the foremost experts regarding international trade and customs. Although he is particularly well-known for his solid expertise in anti-dumping investigations, he also handles complex customs and tax litigation cases, as well as appearing before the relevant customs, trade and tax enforcement agencies, appellate bodies and alternative dispute resolution boards based on WTO and NAFTA rules. The practice, which has recently seen an increase in work related to customs audits, remains the first choice of many names in sectors including power generation, hydrocarbons and especially steel.

Practice head(s):

Horacio López Portillo


‘Boutique firm specialising in the area of international trade.’

‘Horacio López Portillo stands out for his personalised attention and almost immediate response.’

‘Their billing rate is very reasonable.’

‘Horacio López Portillo has the virtue of analysing issues at a detailed level and being able to visualise the macro aspects. This allows him to have a holistic view of matters and see them from different angles.’

‘It is a firm that is very strong on the classical aspects and goes solidly with the evolution of new aspects in the provision of services.’

Key clients

Halliburton Company


Welspun Corp

OFS Fitel

Mitsubishi Electronics (US)


APPL Industries

Work highlights

  • Representing Halliburton in an ongoing NAFTA origin-verification procedure and providing ongoing trade and customs advice regarding NAFTA, USMCA and Mexican law.
  • Representing OFS Fitel in discussions of a proposed multi-jurisdictional consolidation or asset purchase with another company, involving ongoing corporate, international trade, labour and customs advice.
  • Representing POSCAO regarding compliance reports derived from a sunset review and continuance of undertakings by the Korean exporters of cold rolled steel to Mexico.