Unfortunately, folks are still confusing "ToT" with "turnkey" manufacturing.
In the case of the Agosta 90B, the two are not the same.
Yes, KSEW gained the ability to construct the Agosta 90B, but it still relied on kits-of-material (KoM) from the OEM, DCNS/Naval Group. This is because Naval Group still owned the IP and design. So, each time the PN wants to build a new Agosta 90B, it'd need to get the KoMs from Naval Group. In turn, Naval Group works with the suppliers (i.e., for the steel, engine, electronics, etc) it wants, and Pakistan pays for it at the agreed price.
When the PN wanted additional submarines, Naval Group stopped offering the Agosta 90B, and it wanted the PN to move onto Marlin (i.e., an improved version of the Scorpene).
Ideally, the PN would have bought out the design rights to the Agosta 90B too so that it can work with the suppliers directly and keep manufacturing. Unfortunately, submarine design is a guarded secret, so even with an old design it won't let it go (though South Korea somehow got the design of the Type 209, which it's manufacturing on its own).
The MoDP said KSEW will build the 4 Hangor SSP using KoMs too. So, the situation on subs will not change, the PN will have to fund an original design to independently manufacture one. But, for what it's worth, Turkey's STM has offered us that opportunity.
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