Excerpts.
"Indonesian state-owned shipbuilder PT PAL is seeking major upgrades to enhance its submarine building capabilities. The government has also allocated $194.7 million to the PT PAL shipyard to expand its submarine production capability. Therefore, considering the Indonesian defense industry law that requires foreign suppliers to provide countertrade, local content, and offsets, to promote skills and technology transfers, a future submarine acquisition program would keep the submarine powerhouse dream alive and in return support these boats across their full life-cycle. Indonesia had deployed five submarines, but lost one, the KRI Nanggala-402.
Indonesian Navy is expected to operate at least 8 submarines by 2024."
"Indonesian Navy tries to get its hand on bigger and more advanced submarines that offer greater time on station and greater breakthrough capability than those that make up its current fleet. Submarines must be able to be deployed for at least 60 consecutive days to accomplish the aforementioned missions. This type of submarine must also incorporate key technologies that are still politically and financially viable, such as the lithium-ion battery, Very Low Frequency (VLF) communications systems, and/or submarine-launched anti-ship missiles."
Indonesian state-owned shipbuilder PT PAL is seeking major upgrades to enhance its submarine building capabilities. The government has also allocated $194.7
militaryleak.com
despite they well feeded
higher politician
and 
isn't same. Ranging from CIC, weaponery, EW and so on. 
