The Software China Can’t Quit

China’s factories are the most productive on earth, and the software that tells them what to build is mostly foreign. It is the least visible of China’s manufacturing dependencies and one of its deepest: the country accounts for roughly 28% of global manufacturing value-added but only about 6% of the world’s industrial-software output.^[1] The gap between how much China makes and how little of the design software behind it is Chinese is the sharpest single measure of the problem.

The dependence concentrates at the high, hard end of the design flow. In advanced simulation (CAE), the three leaders, Ansys, Siemens and Dassault Systèmes, together hold more than half of China’s market and own the proprietary solver code domestic tools lack.^[2] In chip-design software (EDA), Synopsys, Cadence and Siemens control roughly 80% of the Chinese market.^[1] Across categories the pattern is consistent: China is strongest in the management layer, domestic vendors hold most of the information-software market, and weakest exactly where it matters most, in research, design and engineering tools.^[1]

A valve Washington can turn

In 2025 the leverage became explicit. In late May, US export authorities ordered EDA vendors to obtain licences for all sales to China, not merely leading-edge tools; roughly six weeks later, in early July, the curbs were lifted as part of a trade truce.^[3] The episode did double duty: it showed the dependence is real, China’s design flow can be interrupted by a signature in Washington, and that these controls are now bargaining chips, switched off as fast as on.^[4]

China makes nearly a third of the world’s goods and writes barely a twentieth of the software that designs them.

The domestic answer is real but partial. China’s PLM software market grew more than 20% in 2024, pulling in challengers such as ZWSOFT, Yonyou and Glodon, and policy is deliberately creating a “bonus period” for local vendors as sanctions erode incumbents.^[5] But the substitution is defensive, born of the weakness rather than of technical parity, and the hardest tier, high-fidelity simulation and full-flow chip design, remains years away.

Why we track this

Industrial software is the highest-leverage import-substitution theme in Chinese manufacturing and the one with the clearest policy tailwind, because the dependence is both acute and strategically intolerable to Beijing. It is also the one where the gap is widest and the incumbents’ moats, decades of validated solver code, deep customer lock-in, certified workflows, are deepest. We treat it as a long, defensive build to track vendor by vendor and category by category: real progress in management and mid-tier design tools, a much longer road in high-end CAE and EDA, and a sector whose fortunes now move with trade policy as much as with product.