The project, with regional telecom companies, aims to provide faster internet to Singapore and Indonesia.
This comes after government withdrew three plans to connect the United States to Hong Kong with similar cables, following government concerns about espionage.
Cables require formal approval from the national governments involved.
“Echo and BeaFrost, these will be the first two cables to cross a new diversified route across the Java Sea, and they will increase its overall capacity in the Pacific Ocean by about 70 to 70 percent,” said Kevin Salvadori. The network’s investment, the vice president of Facebook told Reuters.
Facebook added that it would be the first cable to connect North America directly to central Indonesia.
The Echo is to be completed by 2023 in partnership with Google and Indonesian telecom company XL Axiata. Bifrost is planned to be completed in a year.
Although more than 73% of Indonesia’s population uses the Internet, the majority access it through mobile data.
A 2020 survey by the Indonesian Internet Providers Association found that less than 10% use fixed line broadband.
Facebook said last year it would build 3,000 kilometers (1,8641 miles) of fiber in 20 cities in Indonesia, in addition to a previous agreement to promote public Wi-Fi hotspots.
Mr Salvador said TechDev would continue to work on the Pacific Light Cable Network (PLCN).
He added: “We are working with partners and regulators to address all of the concerns people face, and we look forward to this cable becoming a valuable, productive trans-Pacific cable. “