China is the default source. China made 51-55% of world PCBs and 67% of HDI boards in 2023 (USCC), though its share of US bare-board imports fell to 30.3% in 2024.
Is China still the default source for PCBs?
Yes. China is the default source for printed circuit boards and their assembly. A printed circuit board (PCB) is the laminated board whose copper traces connect a device's electronic components; a printed circuit board assembly (PCBA) is that board with the components mounted and soldered.
The U.S.-China Economic and Security Review Commission (USCC, a congressional advisory body) reports that China accounted for 51–55% of global PCB production in 2023, in a market of about US$90 billion in 2025. China's share exceeded 60% in specialized segments, including 67% of high-density interconnect (HDI) boards — the fine-line, microvia boards used in phones and compact devices (USCC 2025, Ch. 9, p. 498). USCC draws these shares from industry estimates it did not independently check. China also produces over 75% of the world's copper-clad laminate (CCL), the base material, which makes up roughly 30% of PCB production cost.
The verdict splits for one kind of buyer. US direct imports of bare boards from China were US$786 million in 2024, 30.3% of total US PCB imports, down from 46% in 2018 after Section 301 tariffs (USCC, p. 499). A US buyer of bare boards in volume is therefore closer to a "China leads; alternatives compete" position. That figure covers bare boards only. Most Chinese PCBs reach the US already assembled inside finished devices, and China supplied US$140.5 billion, or 20.9%, of US electronic product imports in 2024.
Who owns China's PCB capacity, and where it is
"Made in China" does not mean "Chinese-owned" in this industry. About two-fifths of China's 2023 PCB output came from foreign-invested firms, and Chinese-funded companies alone accounted for 30.5% of the global market, according to Taiwan Printed Circuit Association (TPCA) and ITRI estimates cited by USCC. Only two of the top ten PCB makers by revenue were Chinese in 2023 (USCC, p. 517). Much of the capacity in China is Taiwanese-, Japanese- and Korean-owned.
The main PCB and PCBA bases are the Pearl River Delta (Shenzhen, Dongguan, Huizhou and Zhuhai) and the Yangtze River Delta (Suzhou, Kunshan, Shanghai and surrounding Jiangsu). Shenzhen and Dongguan are also the main consumer-electronics production centers. No document with PCB output by city was retrieved for this page, so the relative size of each cluster is not stated.
The comparison with the US explains why so many buyers end up in China. The US produces 4% of global PCBs, down from 30% about 25 years ago, and US producers focus on low-volume specialty boards, with defense accounting for about 40% of domestic demand (USCC, p. 517).
Bare boards vs PCBA: how production is organized
Fabrication turns laminate into a bare board through imaging, etching, drilling, plating, solder mask and surface finish. Assembly mounts components using SMT (surface-mount technology) and through-hole processes, then inspects the result with AOI (automated optical inspection) and X-ray before functional testing.
Business models
- Quick-turn prototype fabricators serve engineers and startups with online quoting, small quantities and often shared panels.
- Turnkey PCBA: the assembler buys the components on the buyer's bill of materials (BOM).
- Consigned PCBA: the buyer supplies the components.
- EMS (electronics manufacturing services) providers build to the customer's design and own no product IP.
- ODM (original design manufacturer) suppliers sell their own designs under the buyer's brand.
A small importer buying a finished gadget is usually buying ODM. An importer with its own design is buying EMS or PCBA.
MOQ, lead time and cost structure
Prototype fabricators accept very small quantities; volume fabs price per panel and set minimums by panel utilization. Lead time depends on layer count, HDI features such as microvias and sequential lamination, surface finish, and quick-turn premiums. For PCBA, component availability usually sets the schedule, not the assembly line: long-lead parts such as certain microcontrollers, connectors and power devices dominate. No document gives specific figures.
Cost is driven by layer count, board size and panelization, material (standard FR-4 versus high-frequency laminate), copper weight, surface finish (HASL, ENIG and others), tolerances, test method (flying probe versus fixture), and for PCBA the BOM cost plus the assembler's component markup. Quotes are typically per board at stated quantities plus one-time engineering, tooling or stencil charges.
Classification and tariff exposure, dated
A bare board, a populated board and a finished device fall under different HTS headings, and the duty differs. Classify by what crosses the border. A PCBA may classify as a part of the device it goes into, and the wrong code also misstates Section 301 exposure. A licensed customs broker should confirm the classification.
As of October 2026:
- Legacy Section 301. USCC states that Section 301 tariffs have applied to "most PCB products from China" since 2018. The specific list and rate for bare boards (HTS 8534.00) and for PCBA headings were not confirmed for this page; check the HTS line.
- Semiconductors. The four-year review raised listed semiconductor subheadings (8541 and 8542) to 50% from 1 January 2025 (89 FR 76581). That matters for PCBA classified by its active components.
- Section 301 forced-labor tariff. A 12.5% additional duty applies to products of China entered on or after 24 July 2026 (HTS 9903.05.31) and stacks on the legacy lists.
- Expired layers. IEEPA tariffs were invalidated on 20 February 2026 (Learning Resources, Inc. v. Trump); a 10% Section 122 surcharge followed from 24 February until late July 2026.
FCC, UL and other rules
A bare PCB needs no Federal Communications Commission (FCC) authorization. A PCBA that is or contains an intentional radiator — a Wi-Fi, Bluetooth Low Energy or cellular module — or that is sold as a finished digital device needs Part 15 equipment authorization. Since 26 December 2025, under FCC 25-71, a device that incorporates a covered modular transmitter cannot be authorized even if the module was previously authorized (90 FR 53227). An FCC item from the 22 July 2026 meeting extends Covered List bars to logic-bearing hardware components. The FCC also found in 2025 that about 75% of FCC-certified devices are tested in labs located in China, and on 29 October 2026 it voted to stop recognizing labs in mainland China by December 2028. The consumer electronics profile covers those lab rules in full.
UL 796 recognition for printed wiring boards is common for boards that go into safety-certified end products. It is voluntary at the federal level but often required by the end-product certifier. EU-bound goods also face RoHS and REACH substance rules, which were not researched for this page.
A Defense Acquisition Regulations docket on PCBs (DARS-2026-0298) was open in 2026; its contents could not be read for this page. It matters only to defense contractors.
Where PCB production is shifting
The move out of China is real but small. USCC (November 2025) describes Southeast Asia, "particularly Thailand," as an emerging PCB center, driven by US tariffs since 2018 and by co-location with Southeast Asian electronics assembly. Vietnam and Malaysia follow. Much of the new capacity belongs to the same Taiwanese and Chinese groups that operate in China. USCC judges that Thailand's share "remains small and appears unlikely to substantially challenge China."
Upstream inputs have not moved. With China producing over 75% of copper-clad laminate, a fab in Thailand or Vietnam often still imports Chinese laminate. The exception is the high-performance end: China holds only 7% of the high-speed and high-frequency laminate market (USCC, p. 517).
Common mistakes
- Sending incomplete fabrication data. Missing stack-up, impedance, finish or tolerance specifications force the factory to assume, and assumptions cause yield and fit failures.
- Choosing turnkey PCBA without controlling the BOM. Unspecified "equivalent" parts and gray-market or counterfeit components are a recognized risk, although no source quantifies how often they occur.
- Misclassifying PCBA. A populated board's HTS code differs from both a bare board's and the finished device's.
- Assuming a module's FCC grant covers the end product. Modular approval has conditions, and a covered-entity module makes the host device non-authorizable.
- Confusing location with ownership. Two-fifths of China's PCB output is from foreign-invested firms. Ownership matters for FCC prohibited-entity screening of test labs, not for the fab itself.
- Confusing global and US-import shares. China makes over half of world PCBs but supplied 30.3% of US bare-board imports in 2024.
How to evaluate a PCB or PCBA supplier
Start with the data package rather than the price. A supplier that asks no questions about stack-up, impedance control or finish on a complex board is assuming answers. Ask which processes are done in-house — fabrication, SMT assembly, testing — and which are subcontracted, because many quick-turn sellers broker boards to other fabs.
For turnkey assembly, put an approved-vendor list and an alternate-part approval procedure in the contract, and ask how components are sourced. Ask which inspection and test steps are applied to the order (AOI, X-ray, flying probe or fixture testing, functional test) and what records come with the shipment. Where an end-product certifier requires UL 796 recognition, confirm the fab's file in UL's online directory rather than accepting a logo on a quote.
Frequently asked questions
How much of the world's PCB production is in China?
China accounted for 51–55% of global printed circuit board production in 2023 and 67% of high-density interconnect boards, according to the U.S.-China Economic and Security Review Commission's 2025 annual report. It also makes over 75% of the world's copper-clad laminate. USCC drew those shares from industry estimates that it did not independently check, so treat them as well-supported estimates rather than census counts.
Are Section 301 tariffs charged on PCBs from China?
Yes, for most PCB products. USCC says Section 301 tariffs have applied to most PCB products from China since 2018, and a 12.5% Section 301 forced-labor tariff has stacked on top since 24 July 2026. Confirm the rate for your exact HTS code in the US tariff schedule, because listed semiconductors in headings 8541 and 8542 went to 50% on 1 January 2025.
What is the difference between EMS and ODM?
An EMS provider builds your design and owns no product intellectual property, while an ODM sells its own design under your brand. A small importer buying a finished gadget is usually buying ODM; an importer with its own schematics and board files is buying EMS or PCBA. The model decides who owns the design files, firmware and tooling.
Where in China are PCBs made?
Mainly in the Pearl River Delta, around Shenzhen, Dongguan, Huizhou and Zhuhai, and in the Yangtze River Delta, around Suzhou, Kunshan and Shanghai. Shenzhen and Dongguan are also the core of China's consumer-electronics production. No public document giving PCB output by city was found, so the relative size of each cluster cannot be stated with confidence.
Is Thailand an alternative to China for PCBs?
It is a growing one, but still small. USCC's 2025 report describes Southeast Asia, particularly Thailand, as an emerging PCB center, built largely by relocating Taiwanese and Chinese groups. It judges Thailand's share small and unlikely to substantially challenge China, and Thai fabs often still rely on Chinese copper-clad laminate, of which China makes over 75% of world output.
Does a bare PCB need FCC certification?
No. A bare circuit board is not a device and needs no FCC authorization. The finished product does, if it contains a radio or is sold as a digital device. Since 26 December 2025, under FCC 25-71, a device that incorporates a radio module from a Covered List entity cannot be authorized, even if the module itself was approved earlier.
Why are US-made PCBs hard to find?
The US makes about 4% of the world's printed circuit boards, down from about 30% some 25 years ago, according to USCC. Domestic fabs concentrate on low-volume specialty boards, and defense accounts for about 40% of US demand. A commercial buyer needing volume production of standard boards will find far more capacity in China and, increasingly, Southeast Asia.
Sources
- U.S.-China Economic and Security Review Commission — 2025 Annual Report to Congress, Chapter 9, Appendix pp. 516-517
- Office of the U.S. Trade Representative / Federal Register — USTR Notice of Modification, 89 FR 76581 (Sept. 18, 2024), FR Doc. 2024-21217, docket U…
- Federal Communications Commission / Federal Register — FCC Report and Order FCC 25-27, ET Docket 24-136, 90 FR 38045 (Aug. 7, 2025)
- govinfo.gov/content/pkg/FR-2025-11-25/html/2025-21001.htm
- docs.fcc.gov/public/attachments/DOC-422746A1.pdf
- budgetmodel.wharton.upenn.edu/p/2026-10-14-effective-tariff-rates-and-revenu…
- en.wikipedia.org/wiki/Electronics_manufacturing_services