these are the sounds found in most native Cantonese dialects:
there are also sounds not on the chart

Other sounds:

voiceless labio-velar stop
labio-velar central approximant [w]
aspirated counterparts of all stops and affricates
eleven dipthongs
vowels and dipthongs occur in as many as six contrastive tones

(from: Handbook of the International Phonetic Association. 1999. Cambridge. Cambridge University Press.)