Um gerente de compras empregado em uma fábrica nos EUA dedicou uma tarde inteira meses depois, em agosto de 2025, para recalcular o preço de custo de um pedido de transformador após o agente da alfândega chamar a atenção para um novo imposto introduzido. O preço total da unidade era de $58.000. Após calcular os custos adicionais resultantes das tarifas da Seção 232 sobre aço e alumínio e uma linha de imposto extra, o preço subiu mais de 20% além do que estava incluído na cotação. Ao mesmo tempo, seu colega de outro estado foi informado de que seu transformador programado para substituição chegaria em 26 meses em vez de 12. Ações executivas sobre comércio tornaram o setor de transformadores mais caro, mais lento e mais difícil de planejar.
Este artigo elabora sobre os impactos de ordens executivas e políticas comerciais associadas em transformadores, nomeadamente quais tarifas são relevantes, como elas alteram os preços para os clientes, como a demanda é alterada com a mudança na legislação de conteúdo nacional e quais ações clientes americanos e estrangeiros devem tomar. Este artigo é prático e atualizado com o que é atual até meados de 2026; no entanto, deve-se ter em mente que a política comercial muda regularmente e cada pedido precisa ser re-cotado com base nas regulamentações atualmente aplicáveis.
Ordens Executivas e Política Comercial: O Básico
Ordens executivas são comandos emitidos pelo presidente dos Estados Unidos que são aplicados no ramo executivo. Em relação ao setor de transformadores, as ações ocorrem de três maneiras. Em primeiro lugar, existem as tarifas da Seção 232, conforme mencionado na Lei de Expansão do Comércio de 1962, que envolvem a segurança nacional como razão para o uso dessas tarifas e que atualmente se aplicam ao aço, alumínio, cobre e produtos derivados desses metais, a uma taxa de 50%. Em segundo lugar, existem tarifas recíprocas, conforme descrito na IEEPA (Lei de Poderes Econômicos de Emergência Internacional), que consistem em algumas tarifas específicas de importação e exportação. Um exemplo seria ter uma tarifa de 10% sobre qualquer coisa que seja importada da China, além do adicional de 10% adicionado à tarifa original. Em terceiro lugar, existe a política de compras, também conhecida como regulamentações Buy America, segundo a qual tudo que é produzido domesticamente deve ser preferido para projetos de infraestrutura financiados federalmente.
Há um detalhe importante em relação aos transformadores, embora deva ser observado que as tarifas da seção 232 para aço e alumínio geralmente são baseadas no conteúdo de aço e alumínio do produto importado, em vez do preço total dele em todos os casos. Isso torna o cálculo diferente em comparação com a aplicação de tarifas universais, razão pela qual o aumento real no preço pode variar de um caso para outro. A linha do tempo abaixo reflete o desenvolvimento do sistema atual de tarifas.
| Data | Ação | Relevância para transformadores |
|---|---|---|
| 2018 | Tarifas da Seção 232 sobre aço (25%) e alumínio | Aumenta o custo do GOES e do aço do tanque |
| Junho de 2025 | Tarifas de aço e alumínio aumentadas para 50%; cobertura derivada expandida | Imposto maior sobre o conteúdo metálico em unidades |
| 1 de agosto de 2025 | Tarifa de 50% da Seção 232 sobre produtos de cobre | Aumenta o custo dos enrolamentos de cobre |
| 18 de agosto de 2025 | Listas da Seção 232 estendidas para incluir certos transformadores e peças | Linha de imposto direto sobre unidades importadas |
| 29 de agosto de 2025 | Entrada isenta de imposto de minimis removida | Mesmo pequenas remessas enfrentam impostos |
| Final de 2025 | Tarifas recíprocas (IEEPA) aplicadas por país | Imposto adicional sobre o 232 |
Tarifas que afetam transformadores
Na tabela abaixo, as principais medidas sobre importações de transformadores estão consolidadas. Os períodos de vigência das medidas e seus valores no momento da publicação estão indicados na tabela. Desde 2025, as taxas e métodos variaram muitas vezes, portanto, não se esqueça de verificar os dados mais recentes antes de fazer um pedido.
| Medida | Escopo | Taxa (conforme publicado) | Efeito sobre transformadores |
|---|---|---|---|
| Seção 232 aço & alumínio | Aço/alumínio e derivados, incluindo transformadores | 50% sobre conteúdo metálico (25% para o Reino Unido) | Aumenta o custo das unidades importadas |
| Seção 232 cobre | Cobre e produtos de cobre | 50% | Aumenta o custo do conteúdo de enrolamento de cobre |
| Tarifas recíprocas (IEEPA) | Específico por país, a maioria dos parceiros comerciais | 10–41% dependendo da origem | Adiciona uma camada de imposto adicional |
| Buy America / conteúdo doméstico | Projetos de infraestrutura financiados pelo governo federal | Varia por programa | Desloca a demanda para plantas nos EUA |
Para os compradores, dois pontos são importantes. O primeiro ponto é que a lista de produtos reciclados da Seção 232 inclui alguns transformadores e componentes de transformadores a partir de 18 de agosto de 2025, levando o despachante aduaneiro no exemplo dado neste artigo a se referir a uma nova linha na lista da Seção 232. O segundo ponto importante é que, a partir de meados de 2026, não há uma proibição abrangente sobre a importação de transformadores para o Canadá de qualquer país; os mecanismos utilizados são de custo em vez de proibição.
Como as Tarifas Mudam o Custo Aterrado
O efeito das tarifas depende do pedido, uma vez que varia de acordo com a combinação de produtos, país de origem e composição da unidade. Uma ilustração mostra como isso funciona na prática. Suponha que você tenha um transformador montado em base que vale cerca de $120.000, com o aço e o cobre formando aproximadamente 25% do valor do transformador.
| Cost component | Amount |
|---|---|
| FOB factory price | $120,000 |
| Section 232 duty on metal content (50% of ~$30,000) | +$15,000 |
| Reciprocal tariff (e.g., 20% on full value) | +$24,000 |
| Ocean freight and insurance | +$6,000 |
| Customs clearance and fees | +$2,000 |
| Approximate landed cost | $167,000 |
The identical operation but from another source, with a smaller metal content or a lack of exclusion, can result in a more substantial or less substantial difference — and that is why it is wise to turn to suppliers for the latest detailed DDP or CIF offer based on the actual customs tariffs.
Domestic Content and Buy America Rules
Federal programs for construction, transit, and power generation rely on “Buy America” and domestic content requirements. In this arena, the US transformer market sees the effect of good times for domestic manufacturing since almost all of US requirements are filled by imports. Approximately 80% of large transformers in the US are imported; the vital core material, grain-oriented electrical steel (GOES) has one producer in the US filling around 20% of the total requirement.
Supply response is happening but too slowly. Hitachi Energy committed more than $1 billion to build a large transformer facility in South Boston, Virginia, and an element facility in Tennessee. Siemens Energy expanded its transformer manufacturing in Charlotte, North Carolina, with a $421 million investment. GE Vernova finalized its purchase of Prolec GE in early 2026. Announced investments in transformers in North America exceed $2 billion, whereas ramping of new production requires 18-30 months to take effect and will not eliminate the gap before 2027-2028.
Grid Investment and the Demand Side
Trade policy is just a part of the picture; there’s another piece to the puzzle, which is how U.S. policies are also promoting infrastructure investment. Due to federal programs, investments of billions of dollars have gone into upgrading transmission and distribution systems, improving grid resiliency, and integrating renewable energy sources, and utility companies have appropriately reacted to that. The demand for transformers in the U.S. has grown by about 119 percent since 2019, while generator step up transformers have grown by about 274 percent. The same period which increased the tariffs has widened the scope of demand at the same time; thus, buyers see both the increased demand and queues instead of one of either.
Impact on U.S. vs. International Buyers
The effect of these policies differs sharply by geography, and international buyers sometimes benefit from the reshuffle.
| Buyer type | Main impact | Practical response |
|---|---|---|
| U.S. utilities | Higher landed cost, longer queues, Buy America pressure | Book slots early, use waivers where available, diversify origins |
| U.S. contractors/EPC | Budget uncertainty from tariff swings | Re-quote against current rates; build contingency into bids |
| International buyers | Exporters shift capacity; possible price spillover | Qualify multiple exporters; lock prices with contracts |
| Federal project sponsors | Domestic-content compliance workload | Document origin and content percentages carefully |
For exporters, the practical effect has been a reallocation of capacity: manufacturers whose U.S. volumes are constrained by tariffs and content rules have more incentive to serve Asia, the Middle East, Africa, and Latin America, where demand is growing and no Section 232 duty applies.
The Transformer Shortage Context
This policy unrest does not happen on its own. The transformer deficit that started in 2021 remains the main driver of lead times and prices: in 2025, average delivery time for standard power transformers in the U.S. is around 128 weeks from order to shipment, and distribution transformer prices are approximately 78%–95% above 2019 levels. Regulatory activities increase costs in already-constrained markets, but they are not the creators of the crisis — limited capacity, material availability, and demand surge are to blame. It is important for customers to view taxes as yet another factor to consider, rather than the overall explanation.
Practical Steps for Buyers
Policy does not fall under the jurisdiction of the purchaser; however, they can mitigate its impact through the following methods:
Get quotes based on the latest tariff schedules. The tariffs changed in January, May, June, and August of 2025 and will continue to change; hence, any three-month-old quote will be outdated.
For suppliers provided shipping costs, get quotes based on either “cost insurance freight” (CIF) or “delivered duty paid” (DDP) as it saves on calculating duties and shipping fees. Those who provide CIF or DDP quotes take into consideration the metal content of the product being shipped which is one of the bases for calculating 232 duty.
Ask for full engineering documentation. Supplying full reports on both IEC 60076 test and routine tests facilitates clearance, engineering review, and commissioning.
Diversify manufacturing sources. By qualifying suppliers globally, one can avoid downtimes due to tariff changes or change in manufacturing capacity.
Make reservations based on estimated delivery times, but not prices. Due to long waiting times, schedule constraints are normally the biggest problems.
Take potential tariff changes in account when making budgets. Expected fluctuations in delivery costs can range from 5% to 15%.
Brands and Supply Strategy
Supply strategy is as important as brand name in a market that is sensitive to policies. The premium tier players, including ABB, Siemens Energy, Schneider Electric, and Hitachi Energy, have strong foundations in production in the U.S. and Europe and they are actively expanding their production plants in the United States, thus establishing a strong partnership with Buy America projects. Pricing for players in this tier reflects their premium status: a transformer with a capacity of 1 – 10 MVA usually varies from $150,000 to $380,000 while the period for delivery is rather long.
| Supplier profile | Typical price (1–10 MVA) | Lead time (approx.) | Best for |
|---|---|---|---|
| Premium tier (ABB, Siemens Energy, Hitachi Energy, GE Vernova) | $150,000–$380,000 | 18–32 months | Buy America projects, EHV, critical assets |
| U.S. builders (Prolec GE, Virginia Transformer, WEG) | $130,000–$320,000 | 12–24 months | Domestic-content compliance |
| Volume tier (TBEA, Baoding Tianwei) | $60,000–$200,000 | 8–14 months | International projects, price-sensitive volume |
| IEC-certified exporters (Jiangsu Subian Electric Power) | $50,000–$180,000 | 6–12 months | International buyers, custom specs |
ABB, Siemens Energy, Schneider Electric, and Hitachi Energy have earned their place at the top of the transformer industry through decades of engineering and service depth, and they remain the reference points for critical and U.S. domestic work. Jiangsu Subian Electric Power plays a complementary role: as a Chinese transformer manufacturer certified to IEC 60076, it supplies oil-immersed transformers, dry-type transformers, box-type substations, and special-purpose units to international buyers across Asia, Africa, the Middle East, and Latin America — markets where Section 232 duties do not apply and where certified quality at competitive pricing is the deciding factor. For buyers seeking supply diversity beyond the U.S. market, Subian’s documented test reports and flexible production planning offer a practical hedge against policy-driven disruption.
Frequently Asked Questions
Do U.S. executive orders ban Chinese transformers outright?
No. As of mid-2026 there is no blanket ban on imported transformers. The mechanisms are tariffs — including Section 232 duties on the metal content of transformers and reciprocal tariffs by country — plus Buy America preferences on federal projects. The effect is higher cost and redirected demand, not prohibition.
How much do tariffs actually add to a transformer purchase?
It varies widely. On a $120,000 pad-mount unit, the Section 232 duty on metal content plus a reciprocal tariff layer added roughly $39,000 in the example above, about 32%. On other origins and product mixes the impact can be much smaller. The only reliable way to know is a fresh CIF or DDP quotation against the current tariff schedule.
Should buyers delay transformer purchases because of policy changes?
Generally no. With power transformer lead times near 128 weeks and distribution units at 26–40 weeks, waiting makes the schedule problem worse. Committing early with contract terms that acknowledge tariff and material adjustments is the more reliable strategy.
Does IEC 60076 certification help with customs and approvals?
Yes, in practice. Complete IEC 60076 type test and routine test reports give customs officials, engineering reviewers, and insurers a common basis to accept the equipment, which reduces both clearance time and site-acceptance disputes. It does not change the tariff rate, but it removes a separate source of delay.
How can international buyers reduce their exposure to U.S. trade policy?
Source from regions outside the U.S. tariff scope, qualify two or three certified exporters, and lock pricing and delivery in contract terms that address material and logistics volatility. Exporters serving multiple continents, such as Jiangsu Subian Electric Power, provide that kind of diversification naturally.
References
- Congressional Research Service, Electricity Distribution Transformers: Supply, Tariffs, and Policy Options — documented analysis of GOES supply and Section 232 tariff effects.
- Federal Register — official text of executive orders and tariff proclamations.
- U.S. Customs and Border Protection — current tariff schedules, de minimis rules, and duty guidance.
- U.S. Department of Energy — grid investment programs and transformer supply-chain analysis.
- North American Electric Reliability Corporation — reliability assessments documenting transformer lead times above 120 weeks.
- International Trade Administration — export/import guidance and Section 232 program information.
Conclusion
Executive orders and trade measures have made the transformer market more expensive, slower, and more complex to navigate: Section 232 tariffs on metal content, reciprocal duties, and Buy America rules all add cost and friction to a market already defined by the transformer shortage and record lead times. The correct response is not to react to headlines but to plan — re-quote against current schedules, demand complete IEC 60076 documentation, diversify supply origins, book manufacturing slots early, and build tariff contingency into budgets.
For international buyers — and for U.S. buyers building supply diversity — Jiangsu Subian Electric Power offers a stable, well-documented source of IEC 60076-certified transformers, from oil-immersed and dry-type units to box-type substations, with realistic delivery and transparent pricing. Contact Subian Electric for current quotations and documentation samples.