They didn't specifically announce it but in a number of reports...

They didn't specifically announce it but in a number of reports they've been very clear in stating things like: "Global right to solar updraft technology(excluding China)".

I also read somewhere that the Chinese are just free to rip it off, they must pay royalties on the revenues from power generation.

I'm actually quite worried about the potential PR disaster if they screw up the Chinese tower and it reflects poorly on the US business.