The sub-heading line has been corrected. You are all welcome :) Took all of 2 minutes to send an email and was promptly answered. They even took my suggested rewrite verbatim
http://www.compoundsemiconductor.net/csc/news-details.php?id=19736512
"The firm will now concentrate its efforts on gallium arsenide (GaAs) based integrated opto-electronic circuits"