Mexico Weighs ETS Offset Framework as CORSIA and Article 6 Markets Await Rule Details
Mexico's ETS design choices on free allowances and offset eligibility will set both domestic compliance costs and its supply of Article 6 and CORSIA credits to international buyers.
Mexico is working through a pivotal design question for its emissions trading scheme: how heavily to rely on free allowances versus offset credits for compliance, Carbon Pulse reported on Thursday (2026-09-24). The answer will also shape how much of the country's carbon credit supply flows to international buyers under Article 6 and CORSIA.4
A new public policy instrument under active review would interact directly with the ETS to generate offset credits, simultaneously serving the domestic scheme, the voluntary carbon market, Article 6.2 bilateral agreements, the 6.4 multilateral mechanism, and CORSIA compliance, according to the Carbon Pulse report. That breadth raises immediate accounting questions for how Mexico reconciles domestic abatement targets with credit export ambitions.4
Under Article 6, credits used for export require corresponding adjustments — Mexico must subtract them from its own nationally determined contribution. The more credits the scheme routes to CORSIA or bilateral partners, the tighter the domestic compliance budget becomes. Mexico's government has not disclosed how it plans to handle that trade-off, and the eligibility rules have not been published.4
Free allowances introduce a separate set of choices. Allocating generously to covered sectors reduces early political resistance but compresses the carbon price, lowering the incentive to abate. No preferred allocation ratio has been announced.4
The ETS design is taking shape as Mexico deepens its economic relationship with the European Union. The European Commission said it would mobilize around $5.8 billion in investments in Mexico aligned with President Claudia Sheinbaum's Plan Mexico strategy, European Commission President Ursula von der Leyen announced, as part of an updated EU-Mexico trade agreement. That deal gained urgency with USMCA negotiations under strain as of late May 2026 (2026-05-29).1,2
EU capital exposure and ETS design are not directly linked in any materials released so far. But as Mexico's industrial and trade ties with Europe deepen, pressure to build carbon pricing compatible with European regulatory expectations will grow.1
Mexico's LNG expansion adds a further dimension to what covered sectors will face under the new scheme. Energia Costa Azul, the country's second LNG export terminal, shipped its first cargo from Phase 1 on July 8 (2026-07-08), adding 0.4 billion cubic feet per day of nominal export capacity and tripling Mexico's total LNG export capacity, the U.S. Energy Information Administration reported. Liquefaction is energy-intensive, and the sector's treatment under the ETS, including whether it is covered and at what free-allowance benchmark, remains unresolved.3
NYMEX Henry Hub front-month gas held at $3.05/MMBtu in Thursday's (2026-09-24) trading, flat on the day. Low North American gas prices do not by themselves push Mexican gas-sector operators toward carbon abatement through market economics, which places more weight on how tightly the ETS sets compliance obligations for the sector.3
The multi-channel design of Mexico's new offset instrument, written to simultaneously serve four compliance frameworks, gives the government flexibility to direct credit supply toward whichever market offers the best terms in a given year. International buyers sourcing Article 6.4 credits will want to see Mexico's position on corresponding adjustments before committing to forward purchase agreements. Without published rules on that point, price discovery in that channel stalls.4
Draft regulations on offset eligibility and free-allowance benchmarks, if published before the end of 2026, would give covered entities enough lead time for compliance planning in the scheme's early trading periods. Mexico has not committed to that timeline.4