China-Mexico FCL: rates triple to $6,000 as 20% undervaluation threshold and emergency cement NOM tighten pre-arrival scrutiny

Import Quality and Customs Regulations

Emergency Quality Standard for Cement Imports Takes Effect

Mexico's Secretaría de Economía (SE) published emergency Mexican Official Standard NOM-EM-023-SE-2026 in the Diario Oficial de la Federación (DOF) on November 2, 2026. The standard entered into force on November 3, 2026.

It sets mandatory quality specifications, physical-chemical test methods including setting times, stability and compressive strength, commercial labeling guidelines and a formal conformity assessment procedure for hydraulic cements. The requirements cover types CPO, CPP, CPEG and CPC as well as strength classes 20, 30, 30R, 40 and 40R.

The standard applies to all hydraulic cement manufactured, commercialized or imported in Mexico. Each factory must provide a product conformity certificate issued by an accredited body. Specific information must appear on packaging and transport documents.

The measure seeks to stop the introduction and sale of materials that fail minimum technical resistance standards for public infrastructure and private constructions. Industry estimates indicate businesses outside the regulatory framework handle at least 576,000 tonnes of cement annually, causing an economic impact of up to MXN 5.8 billion (USD 312 million) per year on the formal industry.

The emergency standard has a maximum validity of 6 months and may be extended once. Its full enforceability remains conditioned on the accreditation and approval of sufficient conformity-assessment bodies by the Ministry of Economy.

Customs Law Amendments Lower Undervaluation Seizure Threshold

Mexico's Presidency published a decree in the Official Gazette (DOF) on October 23, 2026, amending Articles 144, 151, 153, 154, 177 and 185 of the Customs Law. The changes take effect on January 1, 2027.

The amendments lower the threshold for a presumed customs violation due to undervalued goods from 50% to 20% compared with the transaction value of identical or similar merchandise. Authorities may launch ex officio audits and seize goods whenever the declared import value falls below that benchmark.

For discrepancies of 20% or more, importers must provide a cash deposit to release seized goods. The option for a customs guarantee account is no longer available. For discrepancies under 20%, importers have 10 business days to request release of the goods using a cash deposit or customs guarantee account to cover duties and countervailing duties.

Declaring a value 20% or more below the transaction value constitutes a customs violation even for imports under duty-exempt regimes under Article 177. Article 185 subjects violations involving hydrocarbons and petroleum products to fines between 50% and 100% of the commercial value of the merchandise.

On November 3, 2026, Cacheaux, Cavazos & Newton published analyses advising importers to strengthen valuation compliance procedures and maintain comprehensive supporting documentation including invoices, purchase orders, customs entries and traceability under Annexes 24 and 30 of the General Foreign Trade Rules. The Mexico-China Chamber of Commerce reported the same decree details on November 4, 2026.

Anti-dumping and Tariff Policy

Mexico records highest January–September import tax revenue as tariffs on non-treaty origins stay in force

Mexico's National Customs Agency (ANAM) reported that from January to September 2026, total import tax revenue reached 143,716 million pesos, the highest level for the same period since records began in 1990, a 10.1% year-on-year increase.

The Secretaría de Hacienda y Crédito Público (SHCP) attributed this result to the update of applicable tariffs on products from countries without trade treaties with Mexico, including China, South Korea, India, Vietnam, Thailand, Indonesia, Turkey, Taiwan, China, and South Africa, as well as stronger customs surveillance. In September 2026 alone, revenue from this source totaled 17,811 million pesos.

Although the figure set a record, it was 44 billion pesos below the government's original target. The Ministry of Finance attributed the shortfall to peso appreciation, which reduced the local-currency valuation of imported goods. Restricted products cover textiles, toys, home appliances, footwear, and steel structures. The revenue goes directly into the treasury of Mexico's Tax Administration Service (SAT).

On November 4, 2026, President Claudia Sheinbaum defended the tariff policy during her morning conference at the National Palace, stating that the increases applied in December 2025 to Chinese products form part of Plan México and aim to protect national industry against lower-priced imports that affect local production.

Sheinbaum clarified that Mexico maintains good diplomatic and trade relations with both China and the United States, but the country's main commercial integration is with North America through the T-MEC (USMCA), and that there is no free trade agreement with China. She noted that the policy is Mexico's national decision reflecting existing trade-agreement conditions and market situations, and is not intended to involve Mexico in economic differences between China and the United States, with Mexico's primary economic integration remaining focused on North America, supported by decades of established production integration.

Mexico opens sunset review of anti-dumping duties on Chinese wall and floor ceramic tiles

Mexico's Ministry of Economy announced in the Official Gazette of the Federation (DOF) published on November 3, 2026, the decision to initiate a sunset review of anti-dumping duties on imports of wall and floor ceramic coatings (recubrimientos cerámicos para muros y pisos) originating from China. The measure applies to imports of these products from any country of origin.

On November 4, 2026, WTO/FTA consultation network reports stated that the Ministry of Economy had issued an announcement on October 23, 2026, at the request of Mexican producer Porcelanite Lamosa, S.A. de C.V., to formally initiate the second sunset review investigation of anti-dumping duties on wall and floor ceramic tiles originating from China.

More News

Mexico Updates November Trade Compliance Alert: PVC Antidumping Duties, Auto Kit Permits, and Customs Valuation

Eilan Trade Solutions issued a trade alert on November 3, 2026, summarizing key changes affecting U.S.–Mexico trade in November 2026.

The alert explicitly notes that a definitive antidumping duty on U.S.-origin polyvinyl chloride (PVC) was imposed effective October 29, 2026.

It provides guidance for importers to review their compliance operations regarding auto kits, tank cars, and customs valuation requirements in light of ongoing regulatory adjustments.

The alert also updates compliance requirements related to auto kit import permits, tank car transportation, and customs valuation reforms.

These compliance adjustments directly affect the operations of Mexican importers and exporters, who need to conduct self-inspections in conjunction with the latest customs compliance guidelines.

Alert of More Inflation from Rising Maritime Tariffs; Middle East Conflict Triples Costs

The Mexican Shipping Agents Association (AMANAC) issued a warning on November 2, 2026, that due to the Middle East conflict, sea freight container rates from China to Mexico have surged from around $2,000 before February 28, 2026, to nearly $6,000, a threefold increase.

The association's chairman Roberto Meillón Covarrubias pointed out that the freight increase is attributed to obstructed sea routes, global supply chain disruptions, and rising fuel costs.

He expects this high-cost situation to last 6 to 8 months, thereby exerting inflationary pressure on Mexican consumer goods prices and basic materials costs.

Manzanillo: Between Customs Modernization and Logistics Collapse

On November 2, 2026, commentary on the logistics situation at Mexico's Manzanillo port noted that the government has issued a comprehensive digital reform plan for the Customs Law aimed at combating smuggling and tax evasion.

There is a significant disconnect in the pace of digitalization between the public sector and private customs agents.

This lack of coordination is exacerbating delays and logistics blockages in the clearance process.

Manzanillo Port Activates Automated Gates to Optimize Logistics Processes

On November 5, 2026, Mexico's port authority (ASIPONA) activated a new automated gate system at the Port of Manzanillo, aimed at reducing queuing times for container trucks entering and exiting the port.

The system, integrated with the SAT customs digital platform, is expected to improve port entry processing times by 15%.

According to the announcement issued by the port operator, the upgrade covers three main truck checkpoints in the port's southern area and entered into official operation as of today, to address recent dock logistics backlogs caused by strengthened customs inspections.

Alphaliner Analysis: Shanghai to Manzanillo Route Freight Earnings Fluctuate Significantly

According to the latest shipping analysis report released by Alphaliner on November 4, 2026, freight earnings on the China to Mexico route (Shanghai-Manzanillo) have fluctuated significantly due to major shipping companies lacking spare capacity, port congestion, and schedule disruptions.

Current earnings on this route range from $0.70 to $1.10 per nautical mile, with the figure calculated on the report release date at $0.91 per nautical mile.

In comparison, transpacific route earnings remain high, and capacity tightness continues to affect fleet operational efficiency.

Panama Canal Restores Previous Booking Allocation Criteria for Neo-Panamax Locks

The Panama Canal Authority (ACP) announced via an Advisory to Shipping that it has updated the criteria for reallocating cancelled or available transit slots during booking periods 1A and 2 at the Neo-Panamax locks, effective immediately.

The update restores allocation criteria in place prior to July 2026, offering available slots through a special allocation process prioritizing vessel types in the following order: container ships, LNG carriers, LPG carriers, and vehicle carriers or ro-ro vessels, with Transit Teu Allowance (TTA) capacity acting as the primary tiebreaker within each vessel segment.

In addition, beginning 1 November 2026, vessel owners, operators, or authorized agents may request preliminary tonnage inspections before arriving in canal waters to streamline participation in the canal's transit-focused NetZero programme for low-emission vessels.

Publication of the Third Resolution of Modifications to the General Rules of Foreign Trade for 2026

The Tax Administration Service (SAT) of Mexico published the Third Resolution of Modifications to the General Rules of Foreign Trade for 2026 and Annex 22, in its first anticipated version.

The resolution reforms the first paragraph and adds a second paragraph to the Eleventh Transitory of the General Rules of Foreign Trade for 2026 (originally published on December 27, 2025).

It establishes that, for the purposes of article 59, fraction III of the Customs Law and rule 1.5.1, until October 31, 2026, the subjects that introduce goods into national territory may comply with the corresponding obligations under the terms specified therein.

ANAM Prioritizes Data Exchange with Asia to Improve Customs Control

Estefanía Capdevielle, Director General of Customs Attention for International Affairs at the National Customs Agency of Mexico (ANAM), declared on November 4, 2026 that ANAM prioritizes the advance exchange of information with Asian countries, especially China, on shipments before their arrival at Mexican customs.

This strategy aims to verify the declared value, origin and security risks to protect national industry and combat irregularities such as undervaluation and triangulation.

The official noted that, with this new system, the authority already has alerts on the content and origin of the goods before their dispatch.

Mexican Customs Intensifies Surveillance on China

Estefanía Capdevielle, Director General of Customs Attention for International Affairs of ANAM, stated on November 4, 2026 that the agency has implemented a new strategy that prioritizes the exchange of advance information with Asian governments, particularly with China, before the arrival of shipments at Mexican customs.

This system allows authorities to verify the value, origin and security risks of the goods before customs clearance, with the objective of detecting irregularities such as undervaluation and triangulation to protect the national industry.

Capdevielle emphasized that the goods already arrive with alerts on content and origin at the moment the clearance process begins.

ANAM Prioritizes Exchange of Prior Information with Asian Countries to Detect Irregularities

Estefanía Capdevielle, Director General of Customs Attention for International Affairs at the National Customs Agency of Mexico (ANAM), announced on November 4, 2026 that the institution is prioritizing the exchange of prior information with Asian governments, specifically with China, for shipments of goods.

This system allows verification of the declared value, origin and security risks before the goods arrive at the customs checkpoints and undergo clearance.

The main objective of these actions is to combat irregularities such as undervaluation and protect the Mexican national industry.

Alphaliner: China-Mexico Spot Freight Yields Fluctuate at $0.91 per Nautical Mile

On November 4, 2026, The Loadstar reported that spot freight yields on the Shanghai-Manzanillo route were recorded at $0.91 per nautical mile.

Alphaliner analysis indicates that carrier capacity remains constrained by port congestion and schedule disruptions, keeping spot rates on the Mexico trade route volatile within a range of $0.70 to $1.10 per nautical mile over the past six months.

Transpacific routes to the U.S. West Coast remain the most lucrative.

CANACERO Warns About the Expansion of Chinese Steel Capacity Abroad

CANACERO warns that Chinese steel production capacity is accelerating its expansion overseas, particularly in Southeast Asia and Africa. Chinese steel companies are adding 70 million tons of new production capacity outside China.

The GFSEC (Global Forum on Steel Excess Capacity) ministerial declaration annex released in Milwaukee on September 30, 2026, points out that 70% of Chinese overseas steel investments involve at least one state-owned enterprise, and project scales are generally larger than those of private enterprises. These investments have an average scale of 3.3 million tons, higher than the 2.4 million tons of private companies.

Global excess capacity may increase from 601 million tons in 2024 to 745 million tons in 2028, while demand in the same period will only grow by 34 million tons, and potential capacity expansion can reach 139 million tons. Global supply is growing faster than demand, with a projected excess capacity of 745 million tons by 2028.

In addition, China's steel exports in 2025 set a record of 131 million tons, a 153% increase from 2020.

Premature to Negotiate Changes to T-MEC After U.S. Elections, Warns Marcelo Ebrard

On November 4, 2026, during his participation in the INNOVAFEST forum in Mérida, Yucatán, Mexico's Secretary of Economy, Marcelo Ebrard, stated that it is premature to anticipate modifications to the Treaty between Mexico, the United States and Canada (T-MEC) or to the current tariffs on steel, aluminum and the automotive sector following the legislative elections in the United States, noting that powers over tariff levies correspond to the U.S. president.

In his assessment, Ebrard detailed Mexico's commercial position in the United States, highlighting a comparative advantage in tariff payments: Mexico faces an average tariff of 3%, compared to the 22% average paid by China and levels between 10% and 20% applicable to countries in Latin America and the European Union, consolidating Mexico as the main exporter to the U.S. market with the lowest tariff rate among major trading partners.

Ebrard: Democratic Triumph in the US Does Not Modify Immediate Tariffs; USMCA Under Review

Secretary of Economy Marcelo Ebrard Casaubon reported on November 4, 2026, during the InnovaFest in Mérida, Yucatán, that Mexico's trade relationship with the United States is largely unaffected by the recent US midterm election results, as the US President retains broad authority over tariffs.

Ebrard noted that approximately 80% of Mexican exports to the US currently enter without tariffs, maintaining an effective average tariff of about 3%, which he compared favorably to the 22% rate he attributed to Chinese exports to the US.

He also stated that while the USMCA agreement remains in force until 2036, the ongoing 2026 review process, which has completed three rounds, might eventually lead to additions or adjustments following the US elections.

Ternium Mexico steel shipments hit record high and raises prices in November 2026

Mexican steel producer Ternium released its earnings report and held a conference call on November 4, 2026. CEO Máximo Vedoya announced a price increase notification of 25 USD per ton effective for customers and expects prices to remain at current levels or rise slightly.

The company's steel shipments in Mexico in the third quarter increased 18% year-over-year, reaching a historical high. This performance benefited from Mexico's strict trade defense measures reducing import competition and policy requirements mandating the use of domestic steel in public works.

Despite customer inventories and trade uncertainties, Ternium expects adjusted EBITDA in the fourth quarter of 2026 to be roughly flat with the third quarter.

Political Alternation in the US Will Modify Little the Tariff Relationship with Mexico: Ebrard

On November 4, 2026, the Secretary of Economy, Marcelo Ebrard, during InnovaFest in Mérida, Yucatán, stated that the new political balance in the United States after the midterm elections will modify little the tariff relationship with Mexico, given that the president of the US maintains broad powers over tariffs.

Ebrard highlighted that 80% of Mexican exports to the US do not pay tariffs, maintaining an effective average rate close to 3%, compared to the 22% applied to Chinese products.

Regarding the T-MEC, he confirmed that the treaty is in force until 2036 and that, after completing three review rounds in 2026, the fourth round was postponed at the request of US authorities until after the elections.

USTR urged to permanently suspend China-linked ship fees

The Office of the United States Trade Representative (USTR) has proposed extending the ceasefire period for countermeasures targeting China's maritime, logistics, and shipbuilding sectors by two months, to January 9, 2027.

The Section 301 fees on Chinese-built or China-related vessels (previously suspended for one year) are currently set to expire at 11:59 p.m. Eastern Time on November 9, 2026.

Industry stakeholders sent a letter to USTR before the October 30 comment deadline calling for permanent cancellation of these tariffs, warning that resuming charges in January 2027 would add to the cost burden on an already strained transportation system.

Ternium positive on Mexico steel outlook

Mexican steel company Ternium stated in its earnings conference call on November 4, 2026, that it has notified customers of another price increase of 25 USD per ton starting in November.

Due to trade defense measures and government requirements for public projects to prioritize domestic steel, the company's steel shipments in Mexico in the third quarter increased 18% year-over-year, reaching a historical high.

Ternium CEO Maximo Vedoya expects that with the US Section 232 steel tariffs rising to 50% causing price linkage, Mexican domestic steel prices will remain at current levels or rise slightly.

Grupo DEACERO obtains Certificates of Conformity for corrugated rebar

Grupo DEACERO obtained three new Product Conformity Certificates for steel corrugated rebar, issued by the Organismo de Certificación de la Industria del Acero y la Construcción, A.C. (OCIAC), for its production in Ramos Arizpe and Celaya.

The certificates cover grade 42 rebar (designations 3, 4, 5, 6, 8, 10) and low alloy grade 56 rebar (designations 4, 5, 6, 8, 10).

These certifications are framed within the implementation of NOM-251-SE-2025, whose first stage entered into force on August 12, 2026 to ensure quality standards in construction materials.

Participation of the Secretary of Economy, Marcelo Ebrard, during the press conference of InnovaFest Mérida 2026

Secretary of Economy, Marcelo Ebrard Casaubon, in press conference at InnovaFest Mérida 2026, highlighted that the state of Yucatán maintains economic growth of 4.3% in 2026, doubling the growth rate of the United States.

He mentioned that the country's current export strategy, characterized as 'cold blooded' and 'perseverance', has allowed maintaining favorable tariff conditions (payment of 3% compared to other countries) for Mexican exports, without the recent trade agreement with China altering said advantageous position.

Panama Canal fiscal year 2026 traffic and revenue growth

Between October 2025 and September 2026, the Panama Canal handled 13,951 vessel transits, a 4.1% increase compared to 13,404 transits in the previous fiscal year.

Total vessel tonnage rose 6.5% to 521 million PC/UMS tons, with Neopanamax lock traffic accounting for 52.2% of total tonnage (an 8.2% year-over-year increase in that segment).

Canal revenue for fiscal year 2026 reached 6.6 billion Panamanian balboas (approximately $6.6 billion), representing a 16.6% increase over the previous year.

Baltic Dry Index rebounds on 4 November 2026

On 4 November 2026, the Baltic Dry Index (BDI) increased by 104 points (4.02%) to close at 2,694 points, recovering from a two-week low.

The gains were primarily driven by the Capesize Freight Index (BCI), which rose 276 points (7.22%) to 4,097 points, with the average daily charter rate for Capesize vessels climbing $2,511 to $33,659.

The Panamax Freight Index (BPI) closed at 1,894 points (+1.50%), while the Supramax Freight Index (BSI) fell 0.60% to 1,835 points.

Magnesia Carbon Bricks From Mexico and China: Final Results of Third Sunset Reviews

On November 4, 2026, the U.S. Department of Commerce (Enforcement and Compliance, International Trade Administration) announced the final results of the expedited third sunset reviews of the antidumping duty (AD) orders on magnesia carbon bricks from Mexico and China.

The findings state that revocation of these AD orders would be likely to lead to the continuation or recurrence of dumping at the established levels.

Containerized Freight Index holds steady at 3,687.35 points

As of 4 November 2026, the Containerized Freight Index was recorded at 3,687.35 points, remaining flat compared to the previous assessment.

This index, tracked by Trading Economics, represents weekly spot rates for shipping containers from Shanghai to major global ports.

Mainline carriers prepare to resume Suez Canal transits on Asia-Europe services

Mainline container ocean carriers are preparing to resume Suez Canal transits for Asia-North Europe and Asia-Mediterranean services following competitive pressures and a temporary easing of regional security risks.

According to a report by Linerlytica, Evergreen of Taiwan, China will deploy the 16,556 teu Ever Eon and Ever Edit on eastbound Suez transits on Ocean Alliance's NEU7/CES service on 7 and 11 November, followed by the 20,124 teu Ever Gifted on 16 November.

In addition, Premier Alliance partners Yang Ming and HMM will restart Suez transits on the revised MD1 service starting with the 11,714 teu YM Trust on 13 November; the revised service will call at Ningbo, Shanghai, Shekou, Singapore, Sokhna, Suez Canal, Damietta, Ambarli, Izmit, Mersin, Damietta, Suez, Singapore, Kaohsiung, and Ningbo, turning in 84 days and deploying 12 ships of 11,700 to 14,000 teu instead of 16 ships previously required on the Cape of Good Hope route.

Global bunker prices drop across major indices on 3 November

On 3 November 2026, global marine fuel benchmarks recorded widespread price declines across key grades. The Global 20 Ports Average fell to $918.00/mt (-$22.50) for VLSFO, $782.50/mt (-$31.00) for IFO380 (HSFO), and $1,504.50/mt (-$10.00) for MGO.

The Global 4 Ports Average dropped to $858.50/mt (-$34.50) for VLSFO, $689.00/mt (-$43.00) for IFO380, and $1,417.50/mt (-$15.00) for MGO.

Concurrently, the Global Average Bunker index reached $973.00/mt (-$14.50) for VLSFO, $800.00/mt (-$24.50) for IFO380, and $1,568.00/mt (-$11.50) for MGO, with crude futures settling at $104.27/bbl for Brent (-0.01) and $96.70/bbl for WTI (+0.38).

Deacero casts first billet at new Ramos Arizpe steel mill in Mexico

Mexican steelmaker Deacero successfully cast the first billet at its new minimill in Ramos Arizpe, Mexico, as announced by Italian plantmaker Danieli on November 2, 2026.

The project adds 1.5 million metric tons of annual capacity, featuring a 150-mt electric arc furnace (EAF) with "Zero-Man-Around" technology and automatic raw material feeding.

Production is currently supported by the existing EAF at Steelmaking Plant No. 1 while the new EAF undergoes commissioning, with beam-blank production scheduled to begin in the coming weeks to produce large structural sections up to 27 inches.

Vessel Reported on Fire off the Coast of Oman

On 3 November 2026, the United Kingdom Maritime Trade Operations (UKMTO) issued an official alert reporting that a vessel was observed on fire off the coast of the Sultanate of Oman.

The incident occurred in proximity to the Arabian Sea and the entrance to the Strait of Hormuz, a critical maritime chokepoint for energy and global trade.

IMO warns shipping faces continued attacks across key maritime trade routes

On 3 November 2026, the IMO Secretary-General Arsenio Dominguez opened the Council's 138th session, issuing a formal warning regarding the persistent threats to commercial shipping and seafarers in major trade routes.

The waterways identified as under threat from attacks and geopolitical disputes include the Strait of Hormuz, the Red Sea, the Bab-el-Mandeb, the Eastern Mediterranean, the Black Sea, and the Sea of Azov.

The IMO Council is convening from 2 to 6 November 2026 to address maritime security, governance, and shipping information systems.

China Proposes New Sanctions Rules Amid Trade Secret Disputes

On November 2, 2026, The National Law Review reported that China's Ministry of Commerce proposed new rules authorizing sanctions against foreign companies, organizations, and individuals infringing upon Chinese trade secrets in ways that threaten China’s sovereignty, security, or development interests.

The proposal, which is open for comments until November 24, 2026, includes potential trade, export, and investment restrictions, entry/work bans, and monetary penalties, responding to U.S. sanctions against five Chinese companies.

IMO warns of persistent shipping security threats in key maritime trade routes

On 2 November 2026, the International Maritime Organization (IMO) Council, during the opening of its 138th session, issued a warning regarding persistent threats to commercial shipping and seafarers across key maritime routes, specifically naming the Strait of Hormuz, the Red Sea, the Bab el-Mandeb, the Eastern Mediterranean, the Black Sea, and the Sea of Azov.

The Council is meeting from 2 to 6 November 2026 to address maritime security, governance, and shipping information systems.

IMMEX Documentation and Importer Liability

Global Training Center published an update on November 2, 2026, noting that while IMMEX authorization is held by a specific Mexican legal entity, U.S. importers of record retain responsibility under U.S. law for exercising reasonable care.

Mismatched inventory records or production data at the Mexican facility can lead to customs documentation issues for U.S. importers, particularly if CBP issues a Form 28 Request for Information.

Peak Season Surcharge (PSS) Adjusted for Far East Asia to East Coast South America (X4FS)

Maersk announced that the Peak Season Surcharge (PSS) for the Far East Asia to East Coast South America (X4FS) service will be adjusted on November 9 and November 20, 2026.

For the respective effective dates, all 20-foot dry containers will be adjusted to $500, all 40-foot dry containers to $1,000, 45-foot high cube containers to $1,000, and reefer containers and reefer high cube containers to $500 and $1,000 respectively.

Traveling to Mexico by Road? Get Informed Before Leaving

Mexico's National Customs Agency (ANAM) issued a reminder that for the 2026 winter 'Heroínas y Héroes Paisanos Program', the customs exemption (franquicia aduanera) is fixed at 500 US dollars per person throughout 2026.

This special operation runs from November 25, 2026 to January 8, 2027.

This exemption applies to goods carried by individuals in addition to luggage, and no taxes need to be paid within this limit.

Latest Implementation Status of Mexico-US Tariffs in November 2026

Effective November 2, 2026, Mexico exempts goods meeting USMCA agreement duty-free conditions from the Section 301 additional tariffs that took effect on July 24, 2026.

Goods originating in Mexico generally pay the ordinary tariff rate plus an additional 10% surcharge when entering the United States (unless exclusion clauses or industry-specific rules apply).

Expert Outlook

Core judgment
Mexican customs and economy authorities are structurally escalating pre-arrival scrutiny and valuation/quality enforcement on Chinese-origin FCL cargo via advance Asia data exchange and a January 2027 undervaluation threshold cut to 20%, while Middle East-driven freight rates have already tripled and remain elevated for 6-8 months. This combination will raise landed-cost unpredictability and compliance friction for mid-to-large Mexican importers even as Manzanillo automation partially offsets port delays. The emergency cement NOM's one-day announce-to-effect interval and six-month maximum validity signal the accelerated enforcement tempo.

Drivers decoded
Hard facts establish the tightening: ANAM's Director General of Customs Attention for International Affairs stated on 4 November 2026 the priority on advance information exchange with Asia, especially China, to verify declared value, origin and security risks before arrival and generate alerts against undervaluation and triangulation. Customs Law amendments published in the DOF on 23 October 2026 take effect 1 January 2027, lowering the undervaluation seizure threshold from 50% to 20% versus identical or similar goods and requiring cash deposits only for discrepancies of 20% or more. The emergency NOM-EM-023-SE-2026 for hydraulic cement, published 2 November and effective 3 November 2026 with a six-month maximum validity (extendable once), mandates conformity certificates, tests and labeling for all imports, targeting an estimated 576,000 tonnes of informal volume that costs the formal industry MXN 5.8 billion annually; full enforceability depends on accreditation of assessment bodies. AMANAC reported on 2 November that China-Mexico rates rose from about $2,000 to nearly $6,000 due to Middle East disruptions and will last 6-8 months. ASIPONA activated Manzanillo automated gates on 5 November, integrated with SAT and covering southern checkpoints for an expected 15% entry-speed gain. SE initiated a second sunset review of AD duties on Chinese wall and floor ceramic tiles via DOF on 3 November.

Soft signals include the emergency character of the NOM, the one-day gap from announcement to effect, and the shift to cash-only deposits, indicating enforcement urgency with political-cycle sensitivity.

Mexico Customs & Regulators (ANAM/SAT/SE) pursue protection of national industry from undervalued or non-compliant Chinese imports and tax revenue, leveraging advance data exchange, lowered thresholds, emergency NOMs, AD reviews and cash-deposit rules, with a mindset of pre-arrival detection and tightening. Mexican mid-to-large importers and China exporters seek predictable landed costs and clearance timelines, using volume-shifting and bargaining power plus stronger documentation under Annexes 24/30, while remaining highly sensitive to valuation and inspection spikes and building buffers ahead of January 2027. Carriers focus on cabin utilization and yield capture amid disruptions, allocating capacity and setting rates on Shanghai-Manzanillo while constrained by congestion and still preferring Transpacific trades.

Chain effects
ANAM's advance information exchange with China, especially for value, origin and security verification, combined with the Customs Law amendments that cut the undervaluation presumed-violation threshold from 50% to 20% effective 1 January 2027 and mandate cash deposits for discrepancies of 20% or more even under duty-exempt regimes, generates pre-arrival alerts, ex-officio audits and seizures on Chinese-origin FCL. This raises clearance delays and elevated compliance plus deposit costs for importers, sustaining pressure on landed-cost predictability while advancing formal-industry protection.

Middle East conflict-driven route blocks and fuel costs have already tripled China-Mexico container rates from around $2,000 before 28 February 2026 to nearly $6,000, with AMANAC expecting the elevation to persist 6-8 months. The higher ocean freight component of FCL landed costs transmits inflationary pressure onto Mexican consumer goods and basic materials prices, heightening importer sensitivity to rate volatility.

Strengthened customs inspections have produced Manzanillo dock backlogs; activation of automated gates integrated with SAT on 5 November 2026, covering three southern truck checkpoints and expected to lift entry processing speed by 15%, partially restores truck-processing continuity. This offers limited mitigation of overall FCL dwell-time risk while scrutiny intensity remains elevated. Spot yields on Shanghai-Manzanillo stay volatile in the $0.70-1.10 per nautical mile range, reinforcing rate unpredictability.

Mexico Customs & Regulators (ANAM/SAT/SE) benefit as the emergency NOM and AD sunset review protect formal domestic producers from non-compliant or dumped Chinese imports, with industry estimates of MXN 5.8bn annual impact avoided. They further benefit as the lowered undervaluation threshold and advance China data exchange enable higher detection/seizure rates and cash deposits, advancing tax/compliance goals. Importers face the cost and friction transmission; carriers capture yields amid constrained capacity.

Scenarios and signposts
The emergency NOM-EM-023-SE-2026 entered into force on 3 November 2026 after DOF publication on 2 November, carrying a maximum six-month validity that may be extended once and remaining conditioned on accreditation of conformity-assessment bodies. The undervaluation threshold reduction to 20% with mandatory cash deposits takes effect on 1 January 2027. Manzanillo automated gates have been activated since 5 November 2026 with an expected 15% processing improvement. China-Mexico FCL rates have already reached nearly $6,000.

Remaining unknowns to watch include the accreditation and approval status of conformity-assessment bodies for the cement NOM within its six-month window; the exact operational rollout and alert volume from ANAM's China advance-data exchange over the next 7-30 days; the trajectory of China-Mexico FCL spot rates relative to the $6,000 level and any AMANAC updates on the 6-8 month duration; Manzanillo gate utilization metrics and residual dwell times amid ongoing inspection intensity; any early guidance or pilot seizures under the forthcoming 20% undervaluation threshold ahead of 1 January 2027; and DOF or SE updates on the ceramic-tile sunset review timeline and provisional measures.

Baseline (highly likely): Freight remains near $6,000 for most of the 6-8 month window; ANAM China alerts and cement NOM conformity checks raise selective FCL delays and deposits; Manzanillo's 15% gate improvement provides partial relief; undervaluation rules shape January 2027 planning; overall landed-cost pressure stays elevated but manageable with stronger documentation. Triggered if Middle East disruptions persist as forecast, ANAM data exchange becomes operational, and NOM accreditation proceeds within the window.

Optimistic (may): Freight eases earlier than six months if Middle East routes stabilize; Manzanillo automation fully offsets inspection backlogs; cement NOM bodies are accredited quickly with limited import disruption; importers front-load compliant valuation documents ahead of the 20% threshold. Triggered by rapid de-escalation of the Middle East conflict and full accreditation of conformity bodies by early 2027.

Pessimistic (unlikely): Freight stays elevated beyond eight months or spikes further; ANAM alerts plus NOM enforcement plus early undervaluation audits produce widespread seizures, cash deposits and longer dwells at Manzanillo despite the gates; the ceramic AD review extends duties; compounded cost and timeliness impacts hit Chinese FCL. Triggered by prolonged Middle East conflict together with delayed NOM accreditation and aggressive ANAM application of the new tools.