CITIC Telecom International CPC Limited, formerly known as PSINet HK and CPCNet, is a wholly owned subsidiary of CITIC Telecom International Holdings Limited, offers managed cloud computing, IP networking, information security, and data center services.
CITIC Telecom International Holdings Limited is a telecommunication vendor to provide telecom services in the Asia Pacific including voice service, mobile SMS and other value-added services, data service and telecom solutions to telecom operators and ISP. Wikipedia
The 24-storey CITIC Telecom Tower was completed in 1977, and is located at Kwai Chung, an urban area in the New Territories. It houses the Hong Kong Internet exchange (HKIX2), along with a large number of Tier-1 carriers.