I am a Fuyao employee, and I can tell you responsibly that Fuyao used to be the abbreviation of Fujian Yaohua, but now Fuyao and Yaohua are two completely different brands. If you look at the glass labels, those with a diamond-shaped FY mark or FUYAO mark are made by Fuyao. Yaohua glass includes Wuhan Yaohua, Shanghai Yaohua, etc. Shanghai Yaohua seems to have a SYH mark.

As for quality and price, the matching glass (that is, the original factory-standard glass, which is not sold by ordinary repair shops) has the best quality and the highest price. It has nothing to do with trademarks. Of course, the glass of most domestic car models is currently supplied by Fuyao