Japan's only "effective" countermeasure is photolithography, but China is not worried for the following reasons:

1. Japan truly monopolizes high-end photolithography used for EUV at 7 nanometers and below. China does not yet have EUV, and domestic research and development will take at least two or three years. By then, domestically developed compatible photolithography is likely to be ready…
2. Domestic alternative photolithography for sizes above 7 nanometers has already entered mass production. Japan's ban on sales is just creating a market for domestic products, which Chinese manufacturers welcome…
3. If the ban on photolithography is implemented, Japan will be the first to introduce sanctions into the civilian sector. Then China's countermeasures can go beyond "military-civilian dual-use," and there are many ways to hit Japan's inflation hard…