There are not many institutions that can do component analysis in China. Many people claim that they can do it, but in fact they can't. Because component analysis is different from general detection, it is enough to use instruments, mainly because of its deep industry background. So many institutions can't do it. There is a micro-spectral detection in Shanghai, which is not bad in China. They claim that this technology is the first in China. Like other organizations, most of them take orders first and then outsource them to organizations known by insiders.