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On April 7, 2026, the Trade Remedies Authority of Vietnam (TRAV) under the Ministry of Industry and Trade received information from the Vietnam Trade Office in Mexico regarding the official initiation by Mexico’s Ministry of Economy of an anti-dumping investigation into polyester resin (PET) products originating from Vietnam and Malaysia.
General information about the case
The petitioners in the case are two domestic producers: Alpek Polyester Mexico and Indorama Ventures Polymers Mexico, S. de R.L. de C.V.
The investigated product is polyester resin (PET – Polyethylene Terephthalate), classified under HS codes 3907.61.01 and 3907.69.99.
The dumping investigation period is determined from July 1, 2024 to June 30, 2025, while the injury investigation period is from July 1, 2022 to June 30, 2025.
According to the initiation notice, the petitioners allege that PET imports from the investigated countries have significantly increased in the Mexican market and are being sold at prices lower than normal value, thereby potentially causing material injury to the domestic PET manufacturing industry in Mexico.
Investigation procedures and deadlines for participation
Interested parties, including exporters, importers, and relevant government agencies, have 23 working days to register their participation and submit relevant information and evidence. This deadline is calculated from five days after the initiation decision is published in Mexico’s Official Gazette (DOF).
The final deadline for interested parties to submit information and respond to the investigation questionnaire is May 19, 2026.
Recommendations for Vietnamese enterprises
In light of this development, Vietnamese PET exporters to Mexico are advised to closely monitor the investigation process and proactively study Mexico’s anti-dumping investigation regulations, procedures, and requirements in order to prepare appropriate response strategies.
Enterprises should review their export data, sales records, export prices, and other relevant information related to PET shipments to Mexico to ensure readiness in providing information when requested by the investigating authority.
In addition, proactive coordination and regular communication with Vietnam’s trade remedies authorities will help enterprises receive timely support during their participation in the investigation.
Relevant enterprises are strongly encouraged to carefully review the initiation notice to fully understand procedural requirements, documentation, and deadlines, thereby safeguarding their legitimate rights and interests throughout the anti-dumping investigation process in Mexico.
The initiation notice and related documents of the case have been officially published for interested parties to monitor and comply with applicable regulations.
To protect their legitimate interests, manufacturers and exporters should familiarize themselves with the procedure and actively contact Vietnam Antidumping Law Firm specializing in anti-dumping and trade remedy for timely assistance.
ASL Law is a leading full-service and independent Vietnamese law firm made up of experienced and talented lawyers. ASL Law is ranked as the top tier Law Firm in Vietnam by Legal500, Asia Law, WTR, and Asia Business Law Journal. Based in both Hanoi and Ho Chi Minh City in Vietnam, the firm’s main purpose is to provide the most practical, efficient and lawful advice to its domestic and international clients. If we can be of assistance, please email to [email protected].
ASL LAW is the top-tier Vietnam law firm for Anti-dumping & countervailing. If you need any advice, please contact us for further information or collaboration.
