http://www.cahk.hk/storage/files/b0901ed8176da47190f4ec3ff06d0442.pdf
Note:
The participants of this voluntary self-regulatory scheme include leading telecommunications companies (in alphabetical order):
China Mobile Hong Kong Company Limited
CSL Mobile Limited
HGC Global Communications Limited
HKBN Enterprise Solutions Limited
HKBN Enterprise Solutions HK Limited
Hong Kong Broadband Network Limited
Hong Kong Cable Television Limited
Hong Kong Telecommunications (HKT)Limited
Hutchison Telephone Company Limited
i-CABLE Telecoms Limited
MultiByte
SmarTone Mobile Communications Limited
Sun Mobile Limited
Telecom Digital