Interesting interview from Paul Triolo,he is regular guest of ijiwei
"China has to do everything from zero", without any explanation on why.
That is patently false, China already has many of the technologies to produce most chips on their own. When you ask this people what china lacks they usually fallback to lithography because their lack of knowledge but also because china already have most of the processing equipment necessary to make chips. What they lack is capacity to produce enough of this machines to mass produce chips, something that US companies have.
Even EUV lithography, the holy grail of semiconductor manufacturing, China is already one of the few countries in this planet with the ability to produce key technologies for this kind of systems.