Section 232 Semiconductor Tariff Narrows the Target to Advanced Computing Chips

Effective January 15, 2026, the White House imposed a 25 percent Section 232 tariff on a narrowly defined category of advanced computing chips, following a Commerce Department investigation that concluded in December 2025 that semiconductor imports posed a risk to US national security. The proclamation, issued as Proclamation 11002, was noticeably more targeted than the broad semiconductor tariff many trade observers had expected after months of Section 232 investigation. For Thailand, which functions as a significant electronics assembly, testing, and export hub within ASEAN's semiconductor supply chain, the actual scope of Proclamation 11002 matters more than the existence of a tariff in the abstract, because a narrowly drawn tariff can leave most of a country's electronics export volume untouched while still exposing a specific, high-value slice of it.

What the December 2025 investigation found and what Proclamation 11002 actually covers

The Commerce Department's Section 232 investigation into semiconductor imports, opened under the same national security statute used for the pharmaceutical tariff covered elsewhere in this update series, concluded in December 2025 that the United States' reliance on foreign-manufactured semiconductors created a national security vulnerability. Rather than imposing a broad tariff across the entire semiconductor product category (a scope that would have swept in a huge range of electronics components, consumer devices, and industrial equipment containing chips), the White House's proclamation targeted a specific, narrower slice: certain advanced computing chips, generally understood in law firm reporting to mean high-performance chips used in applications like artificial intelligence training and advanced computing infrastructure, rather than the broad universe of semiconductors embedded in everyday consumer electronics.

This distinction between "semiconductors" as a broad category and "advanced computing chips" as the specific target of Proclamation 11002 is the single most important fact for a Thailand-based electronics exporter to understand correctly. Thailand's role in the global semiconductor supply chain is concentrated heavily in assembly, packaging, and testing of chips, and in manufacturing a wide range of electronics products and components that incorporate semiconductors without necessarily being the advanced computing chips this proclamation specifically targets. A company assuming that "the US imposed a semiconductor tariff" means its entire electronics export book is now subject to a 25 percent duty is very likely overestimating its actual exposure, just as a company assuming it has no exposure at all without checking its specific product classifications would be underestimating a real risk if any portion of its business does touch advanced computing chip categories.

Why Thailand's specific position in the chip supply chain matters here

Thailand has built a substantial electronics manufacturing and export sector over decades, anchored heavily in semiconductor assembly, packaging, and testing operations run by multinational firms with Thai facilities, alongside a broader base of electronics component and finished-device manufacturing. That position means Thailand sits adjacent to, but is not necessarily the origin point of, the most sensitive category of advanced computing chips this tariff targets, many of which are fabricated in Taiwan, South Korea, or the United States itself before any assembly, packaging, or further processing occurs elsewhere in the supply chain, potentially including in Thailand. Whether a Thailand-based operation's output actually falls within Proclamation 11002's scope depends on the specific product classification of what leaves the Thai facility toward the US market: a packaged advanced computing chip assembled in Thailand from a US, Taiwanese, or Korean fabricated wafer could plausibly fall within scope depending on how the proclamation defines the covered product and how substantial the Thai processing step is considered, while a broader consumer electronics device that merely contains an unrelated, non-advanced semiconductor component would not.

This is also relevant against the backdrop of Thailand's ongoing US Customs scrutiny over transshipment risk covered elsewhere in this update series. A Thailand-based electronics exporter now has two separate compliance questions to answer correctly and keep documented: whether its specific product falls within the advanced computing chip scope of Proclamation 11002 (a Section 232 national security tariff question), and separately whether its product genuinely satisfies Thai rules-of-origin requirements rather than representing minimally processed goods of Chinese or other foreign origin passing through Thailand (a transshipment and origin-fraud question). These are legally distinct issues that happen to intersect in the same product category, and a company needs a clear answer to both, not just one.

What Thailand-based electronics exporters should do now

The practical first step for any Thailand-based electronics manufacturer, assembler, or exporter with any exposure to chip-related products is obtaining a precise HS classification and product description review against Proclamation 11002's actual covered product list, rather than relying on a general sense that "semiconductors" are now tariffed. Companies whose Thai operations focus on packaging, testing, or final assembly of components sourced from elsewhere in the supply chain should pay particular attention to how much local transformation actually occurs in Thailand, since that has implications both for whether the finished product could be considered advanced-computing-chip-scope under Section 232, and for whether it can support a legitimate Thailand-origin claim for other tariff or trade agreement purposes.

Given that this tariff followed a formal national security investigation process, companies should also expect the scope to be revisited over time, whether through additional proclamations expanding coverage, formal exclusion request processes, or scope clarification rulings, in a manner broadly similar to how prior Section 232 steel and aluminum tariffs evolved after their initial imposition. A Thailand-based exporter that establishes now which specific products are or are not in scope, and why, is in a far better position to respond quickly if that scope changes than a company that has never done the underlying classification work.

DeeMED's Global Trade compliance services help Thailand-based electronics manufacturers and exporters confirm HS classification against current Section 232 proclamations and coordinate that analysis with rules-of-origin and transshipment risk review, so a company's actual US tariff exposure is based on a documented product-level determination rather than an assumption about an entire industry category.