Vietnam faces US-China rivalry over undersea cable expansion

The United States is pushing Vietnam to avoid using Chinese firm HMN Technologies in its plan to build 10 new undersea cables by 2030, amid concerns over national security and sabotage. Vietnam’s current cables, essential for global internet connectivity, have suffered repeated failures, prompting the government to prioritise new projects.

Washington is lobbying Hanoi to select more experienced and trusted suppliers for the cables, citing concerns about espionage and security threats linked to HMN Technologies, which the US views as associated with Chinese tech giant Huawei. The US has also raised concerns about possible sabotage of Vietnam’s current subsea cables.

Vietnamese authorities have remained open to working with Chinese firms, but United States officials have stressed that choosing HMN Tech could discourage American companies from investing in Vietnam. Meanwhile, Vietnam’s top telecoms company, Viettel, is already planning a cable with Singapore, bypassing disputed waters in the South China Sea.

The US and China are vying for influence in Vietnam as the Southeast Asian nation looks to expand its undersea cable infrastructure. Both countries are heavily invested in Vietnam, with subsea cables becoming a critical element in the broader US-China technology rivalry.