Recently, just before Chinese New Year holidays, Eratat requested for a trading halt and subsequently suspension. It was a company I have been suspicious about since March 2011. Much of my analysis (with some calculations probably off) can be found here.
China Eratat
Note that this isn't an exercise or pure blog post done specially to ride on a S-chip suspension bandwagon, but to consolidate the lessons and what has been posted before since 2011.