Ummm... Shuttle plans?? y'kiddin.
Ok, the sub drive is pretty noteworthy, but shuttle plans??? We all will admit that our shuttles are nice pieces of hardware and have served not only the US but the whole planet quite well, but they're OLD! At the very least I would figure that the Chinese would want to modernize their plans for a shuttle substancially more than we have so that still will take some engineering. With that in mind, why don't they knock on their neighbor's door to the northwest. There is a perfectly good, although untested, Russian Buran shuttle just rusting on a lot someplace. Hell, for enough commodity goods in trade, they can have not only the Russian prototype but all the technical documents and research data to boot! Go fig.