Any look at the Classifieds in the Saturday SCMP will show that in addition to English, Cantonese fluency and Putonghua is mandatory. Even in the most English essential jobs such as NETS, English teaching in schools, and lecturing in the various Uni's. Sadly or not, this will be a prerequisite in a couple of years in the Airline world, where other than the Cockpit, it's pretty much evident now.