Nigeria's Fortune, a former player of V-League champions BecamexBinh Duong, is the second foreigner to join the new club. He will receive VND70 million per month as salary.
The 28-year-old scored eight goals in 24 matches when he played for BecamexBinh Duong in the 2012-13 season.
Fortune was a member of Nigeria's U17 squad. He was the best scorer, with 26 goals, of the Indonesian league in the 2010-11 period, when he wore PersibaBantul FC's jersey.
Earlier, Dong Thap extended the contract with Samson Kpenosen by another year.
VNS