Ah, this attracts all the clueless bullsh*tters as expected. Guys, get a grip about how this industry works.
PC-Chips builds (and partly designs) mainboards for Abit, Shuttle, and many many others. Companies in the PC-Chips group itself include many you wouldn't think of, including ECS but also renowned server gear makers SuperMicro.
They're second largest behind ASUS, as long as you're not counting what they make for other brands. Being big in OEM business is a matter of manufacturing quality above everything else - and if they'd be making "cheap junk" as you all seem to claim, they wouldn't be anywhere as big.