 There are also at least six mangrove areas in the Freeport Zone.In mid-2019, there are about 135,000 workers employed in the Subic Bay Freeport, 68.37 percent of which are engaged in the service industry and 17.03 percent in the manufacturing industry.Subic was also a hub in shipbuilding, with the now-defunct Hanjin Philippines previously being the single biggest employer in the area prior to its bankruptcy in January 2019.