US lawmakers are exploring the possibility of establishing a joint ammunition manufacturing facility in Subic Bay, amid concerns about the lack of a forward-staged similar installation in the Indo-Pacific. The US maintained a naval base in Subic Bay until 1991, after the Senate voted against a new bases treaty between the two countries. It is now under the jurisdiction of the Subic Bay Metropolitan Authority, the operating and implementing arm of the Philippine government for the development of the Subic Bay Freeport.
Source: US House panel orders study of possible ammunition manufacturing in Subic | GMA News Online