The Southeast Asia–Japan 2 (SJC2) submarine cable system spans 10500km, connecting 11 cable landing stations in Singapore, Thailand, Cambodia, Vietnam, Hong Kong, Taiwan, mainland China, Korea and Japan. 

SJC2 consortium comprises of China Mobile International (CMI), Chuan Wei, Chunghwa Telecom, Facebook, KDDI, Singtel, SK Broadband and VNPT.

The SJC2 cable features eight fibre pairs, at least 18Tbps of capacity per fiber pair, with initial design capacity of 144 Terabits.