Very cool. The PLAN Submarine Force might have 30 to 40 688i equivalent boats by by the mid-'30's at that rate. That's assuming the PLAN has finally decided on a SSN to serially produce, instead of just building nuclear testbeds, of course. All that remains to be conquered is the somewhat daunting task that the PLAN Submarine Force is immensely lazy wrt maintenance.
That said it's probably for the Type 096s. The PLAN building a dozen of them to match the USN silo for silo with JL-3s is more sensible.