The hiring process was usual. I got a call from PPG after an on-campus interview. Met with their scientists. Largely it was a positive feedback as my qualifications exactly matched their requirements. After a week, i received a verbal offer stating they would get back to me in another week. However, they backtracked on their earlier decision and rescinded the offer. Their reason was they cannot sponsor my H1B visa after initially stating they would definitely do that. That was very unprofessional and their attitude afterwards was very disappointing and defensive. They also made me give up on another offer which I lost because I declined them thinking I am gonna get an offer from PPG. So much for going through the whole charade and breaking promises. The companies need to realize (especially the HRD) what mental process a candidate goes through and should do homework on the work authorization issues instead of waiting for the last minute.