I can't speak to computing history in China, but Read Only Memory has books about the Japanese [0] and British [1] video game companies. MIT has published books about computing in Taiwan, Bulgaria, and China [2]. The former two are even open access, so you can download them for free.

[0] https://readonlymemory.com/products/japansoft-an-oral-histor...

[1] https://readonlymemory.com/products/britsoft-an-oral-history

[2] https://direct.mit.edu/books/search-results?f_ContentType=Bo...