Sihanoukville-Hong Kong (SHV-HK)

What the Sihanoukville-Hong Kong cable is

The Sihanoukville-Hong Kong cable (SHV-HK) is a planned submarine telecommunications system that will link Cambodia directly to Hong Kong. It is expected to enter service in 2026 and runs about 2,938 km. The project is owned by the Government of Cambodia, which makes it a sovereign piece of infrastructure rather than a purely commercial venture.

Route and landing points

The cable connects Sihanoukville on Cambodia's southern coast to Tseung Kwan O in Hong Kong, one of the main cable-landing hubs of East Asia. From Sihanoukville the route crosses the Gulf of Thailand and the South China Sea before reaching the Hong Kong shore.

Why it matters for Cambodia

Until now most of Cambodia's international internet traffic has reached the world over land, through fiber that crosses Thailand and Vietnam. That dependence makes the country vulnerable to congestion and to faults outside its borders. A direct submarine link to a major hub like Hong Kong gives Cambodia its own gateway to the global network and more control over its connectivity.

A government-owned system

SHV-HK is unusual in being owned directly by a national government rather than a telecom consortium. That reflects how seriously Cambodia treats subsea capacity as strategic infrastructure, on a par with ports and power. It also means the cable's priorities are set by national policy, not only by commercial return.

Regional context

The cable lands in one of the busiest maritime regions in the world. The South China Sea carries a dense web of cables serving Hong Kong, mainland China and South-East Asia, and it is a conflict-adjacent zone where shipping, fishing and naval activity all share the same waters as the cable corridors. New routes like SHV-HK add diversity, but they also add to the seabed that has to be watched.

How GeoCables will track it

Once SHV-HK is live, GeoCables can monitor the paths that depend on it with latency and reachability checks, and track vessels moving over its corridor. For a single-owner national cable with few alternatives, that kind of independent watch is especially valuable: if the link degrades, Cambodia has limited fallback, so early warning matters.

What is known and what is not

The owner (the Government of Cambodia), the endpoints and the planned 2026 service date are on record. The design capacity, the supplier and the exact in-service date are not yet confirmed. Where a detail is not public, we mark it as unknown rather than guess.