A practical guide to China's electronics manufacturing cities — Shenzhen, Dongguan, Yiwu, and Suzhou — and when to source from each.
China's electronics manufacturing is not concentrated in one city. Buyers who fly into Shenzhen and assume they can source everything there are making a navigable mistake — Shenzhen covers consumer electronics, IoT modules, and PCB assembly well, but industrial electronics, precision sensors, and mid-to-high-volume OEM manufacturing are distributed across a wider geography.
The underlying principle: each major manufacturing cluster in China developed around a specific set of industries, and that specialization runs deep. The factories, tooling suppliers, labor force, and supply chain infrastructure in Dongguan are built around different product types than those in Suzhou. Going to the wrong city for your product category means visiting factories that aren't optimized for what you need, paying prices that reflect the wrong supply chain, and missing the suppliers who actually compete hard for your type of order.
This guide covers five cities and regions that matter for electronics sourcing, with a focus on what each city is actually good for — and what it isn't.
