The other two companies are American Samoa Telecommunications Authority and American Samoa Hawaii Cable, a statement from Hawaiki said on Thursday.
The agreement would take advantage of the Hawaiki branch to American Samoa and aid ASH's wholesale business. Additionally, it is claimed to be able to deliver reliable international broadband to local operators and ISPs in American Samoa, Samoa, French Polynesia and other nations and territories.
The Hawaiki Transpacific Cable is a 15,000km, 67Tbps, carrier-neutral subsea fibre network linking Australia, New Zealand, American Samoa, Hawaii and five PoPs on the US West Coast. The 400km subsea branch that connects the Hawaiki trunk to US territory is owned by ASTCA.
Hawaiki chief executive Remi Galasso said: "Bridging the digital divide in the Pacific is something that has been part of Hawaiki’s DNA from the beginning.
“In these challenging times, communications infrastructure and reliable connectivity have an even more critical role to play in supporting the continuity and development of businesses and communities in regions that have traditionally been underserved.”
ASH president Paul Michael Young said: “Due to the small size of most Pacific Islands telecommunications markets and fragmented submarine cable infrastructures, partnerships like this one show how individual interests can be knitted together to create something that is truly bigger and stronger than the sum of its parts.
"This deal is the culmination of months of negotiations with each party sacrificing something for the greater good: the people of American Samoa. ASH is grateful for the kindness and cooperation of its alliance partners, Hawaiki and ASTCA, and looks forward to many similar future endeavours.”
ASTCA board chairman Joseph Pereira said: "We have always believed that Governor Lolo Moliga’s decision to invest in building a branch connecting American Samoa to the main Hawaiki trunk would benefit other countries and territories.
"ASTCA is very happy that other Pacific communities will benefit from our decision to connect American Samoa to the world through Hawaiki and ASH.”