There are now 15 submarine cables landing in 7 cable landing stations in Taiwan:

• Tanshui Cable Landing Station (NCIC): C2C, TSE-1 and FASTER
• Tanshui Cable Landing Station (CHT):  APCN-2, SJC2 and TPE
• Pali Cable Landing Station: EAC
• Toucheng Cable Landing Station (CHT): APCN, SMW3, APG, NCP and PLCN
• Toucheng Cable Landing Station (REACH): RNAL/FNAL and HKA 
• Fangshan Cable Landing Station(CHT): China-US CN and SMW3
• Fangshan Cable Landing Station(NCIC): C2C

 

Global internet giants and operators have heavy investments in Taiwan. 

Google has two hyperscale data centers in Taiwan, one in Changhua County which costs US$780 million and was completed in 2013, the other in Tainan Technology Industrial Park which will cost US$850 million, with a power supply of 10MW. So, Google builds two subsea cable connecting Taiwan and the US, FASTER and PLCN. Google also acquies huge capacity on other subsea cables connectign Taiwan.

Facebook has significant investment on subsea cables connecting Taiwan, including APG, SJC2 and HKA. Especially, Facebook owns 4 out of the six fiber pairs on HKA Toucheng/Taiwan Branch. 

Besides local operators including Chunghwa Telecom, Far EasTone Telecom (NCIC), etc., Telstra represents a key player on submarine cable business in Taiwan, its EAC-C2C network landing in 4 cable landing stations in Taiwan, and being HKA landing party in Taiwan.

Geographically, the east and south coast of Taiwan island is of significant importance for the submarine networks, and is also a high-risk region for the submarine networks due to the characteristics of the geology of Taiwan.

The east and south of Taiwan are a complex system of belts formed by, and part of the zone of, active collision between the North Luzon Through portion of the Luzon Volcanic Arc and South China, where accreted portions of the Luzon Arc and Luzon forearc form the eastern Coastal Range and parallel inland Longitudinal Valley of Taiwan respectively. This region is encountered frequent seismic faults which may caused serious harmful impact to the submarine networks. For example, the magnitude 7.0 Hengchun Earthquake in December 2006 resulted in 18 cable cuts in 8 submarine cable systems, atastrophically disrupted Internet services in Asia and Pan-Pacific regions.