Brazil’s 25 percent steel import tariff and Mexico’s 50 percent provisional duty on Chinese steel are not merely trade barriers – they are de facto industrial policy that locks in domestic production capacity for two of the hemisphere’s largest steelmakers, directly shaping the energy demand profile of a sector that consumes roughly 8 percent of global final energy. By shielding Gerdau, CSN, and Ternium from below-cost Chinese exports – which carry an emissions intensity near 2.0 tonnes CO₂ per tonne of steel versus Brazil’s charcoal-integrated average of 1.2-1.5 – the tariffs improve the economics of low-carbon retrofits and greenfield hydrogen-based direct reduced iron (H2-DRI) projects that require long payback periods and stable domestic offtake.
Tariff Architecture and the LatAm Steel Energy Baseline
Brazil’s 25 percent ad valorem tariff on a broad range of steel products, renewed through 2026 after an initial 2023 imposition, covers roughly 70 percent of the country’s import basket by volume. Mexico’s 50 percent provisional countervailing duty, announced in mid-2024 and targeting Chinese flat and long products, operates alongside existing USMCA rules of origin that already restrict duty-free access to North American markets. Together, the two measures insulate approximately 55 million tonnes per year of combined crude steel capacity – Brazil at 35 Mt, Mexico at 20 Mt – from the price pressure that has driven European and North American mills to idle blast furnaces.
The energy implications start with the production mix. Brazil is unique among major steel producers: roughly 40 percent of its output comes from charcoal-based blast furnaces, a legacy of Minas Gerais’ eucalyptus plantations that gives Brazilian pig iron a carbon footprint 30-40 percent lower than coal-based Chinese equivalents. Gerdau and CSN operate the largest charcoal-based clusters; both have disclosed pilot projects substituting green hydrogen for a portion of the reductant in their blast furnaces, targeting 10-15 percent hydrogen injection by 2030. Mexico’s fleet, by contrast, is overwhelmingly scrap-fed electric arc furnace (EAF) – approximately 75 percent of capacity – making its decarbonization pathway almost entirely a function of grid decarbonization and firm renewable power purchase agreements (PPAs).
The Rio Times reported Wednesday that Gerdau’s ADR rose 2.29 percent to US$4.46, CSN added 0.98 percent, and Ternium dipped 0.13 percent. The modest moves reflect a market that has largely priced in tariff continuity; the more consequential signal is that neither Brazil nor Mexico has signaled sunset reviews, giving boards the policy visibility to approve capital expenditure cycles that run 5-7 years from final investment decision to commercial operation.
Cross-Cutting Analysis: Tariffs as Green Steel Enablers
That points to a broader dynamic: trade protection is becoming the primary enabler of green steel investment in emerging markets, mirroring the role the U.S. Inflation Reduction Act’s 45X advanced manufacturing production credit plays for North American projects. Without tariff cover, Brazilian and Mexican mills face a landed-cost gap of US$50-80 per tonne versus Chinese hot-rolled coil – a gap that widens when carbon border adjustment mechanisms (CBAM) are layered on for exports to Europe. The tariffs effectively internalize a carbon price of US$30-50/tCO₂ for domestic production, narrowing the green premium for H2-DRI or carbon capture retrofits.
If this trend holds, Brazil’s charcoal advantage combined with its world-class wind and solar resources – capacity factors of 50-60 percent in the Northeast – positions it as a potential low-cost green hydrogen hub for steel. A full conversion of Brazil’s 35 Mt blast furnace fleet to H2-DRI would require on the order of 1.5 million tonnes of green hydrogen annually, implying roughly 75 TWh of dedicated renewable generation – approximately 5 percent of Brazil’s current total electricity output. Gerdau’s announced 2030 target of 1.5 Mt green steel capacity (roughly 10 percent of its Brazilian output) would need ~3 TWh/yr, a figure that aligns with the 1.2 GW hybrid wind-solar park it contracted in Bahia in 2023.
Mexico’s pathway is different but equally energy-intensive. Decarbonizing 15 Mt of EAF capacity to near-zero scope 2 emissions demands firm, round-the-clock clean electricity – roughly 10 TWh/yr at current specific consumption of 450-500 kWh/t. The 2023 electricity reform that prioritized CFE dispatch over private renewables has complicated PPA pricing; industrial tariffs for large consumers now run US$60-80/MWh, 30-40 percent above U.S. Gulf Coast benchmarks. The China tariff improves the margin cushion for Mexican mills to sign long-term renewable PPAs at those rates, but only if the regulatory framework stabilizes. By comparison, U.S. Gulf Coast EAF mills benefit from IRA 45X credits worth up to US$35/t of qualified steel, a subsidy Mexican producers cannot access directly but which sets a regional floor for green steel pricing.
Ternium’s slight dip Wednesday may reflect its heavier exposure to Argentina – where macro volatility dominates tariff policy – and its Mexican flat-steel assets that compete more directly with U.S. imports than with Chinese material. Its 2024 capital allocation guide earmarked US$1.2 billion for decarbonization across Mexico and Brazil, with the Brazilian portion weighted toward charcoal plantation expansion and the Mexican portion toward scrap quality upgrades that reduce EAF electricity consumption by 3-5 percent per tonne.
Who This Affects
- Utility planner (Brazil): Anticipate 2-3 GW of incremental firm renewable demand from steel-sector hydrogen pilots by 2030, concentrated in Minas Gerais and Bahia; structure capacity auctions to value dispatchability over pure LCOE.
- Green hydrogen developer: Brazil’s steel cluster offers the most credible near-term offtake in LatAm – 1.5 Mt/yr H2 demand potential – but requires integrated project finance structures that bundle generation, electrolysis, and pipeline infrastructure.
- Policy analyst (trade-energy nexus): Track whether Brazil extends tariffs beyond 2026 and whether Mexico converts its provisional China duty to definitive; each renewal cycle is a referendum on the green steel industrial strategy.
- Investor (steel/energy transition): Gerdau and CSN offer the clearest exposure to charcoal-integrated decarbonization; Ternium’s Mexico-heavy mix is a bet on grid decarbonization speed and USMCA supply chain integration.
What to Watch Next
- Brazil’s CAMEX tariff review schedule – the next sunset clause decision is due Q4 2026; any reduction below 20 percent would immediately compress green steel project IRRs.
- Gerdau and CSN hydrogen pilot commissioning timelines – both target first green hydrogen injection in 2026-27; delays signal technology or offtake risk.
- Mexico’s 2025 electricity market rulemaking – specifically whether large industrial consumers regain direct access to wholesale market pricing or remain on CFE-regulated tariffs.
- Chinese steel export volumes to LatAm – customs data showing sustained diversion to Southeast Asia or Africa would confirm tariff effectiveness; a rebound would indicate leakage via transshipment.
Bottom line: The tariffs are doing what carbon pricing has failed to do in LatAm – create a protected domestic market where the energy transition in steel can be financed on commercial terms rather than subsidy dependence. The next five years will test whether that protection translates into deployed electrolyzers, expanded charcoal plantations, and signed renewable PPAs, or merely extends the life of existing assets.
Read the full report at The Rio Times
Note: facts and figures attributed above to The Rio Times (English-language Brazil news) reflect that outlet's original reporting. Broader context, cross-sector connections, and forward-looking scenarios reflect independent analysis by our editorial team.
About this article: Drafted by Energy Ai with AI-assisted research and writing based on public reporting, then reviewed under our editorial process before publication.
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