What hard facts are known about the Chinese L-15 LIFT?

From wiki we have these stats:

Specifications
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Image:L-15_top_view.jpg

Crew: 2 (1 student pilot and 1 instructor/official pilot (trainer), or 1 official pilot and 1 weapons systems officer (attack))
Weights: Normal take-off 6,500 kg; max take-off 9,500 kg
Max speed: Mach 1.4
Range: Combat radius over 550 km
Service ceiling: 16,000 m
Max climb rate: 150 m/s
g-Limits: +8.0/-3.0 g

The first unit (L-15-01) is powered by two ZMKB-Progress (Lotarev) DV-2F. The subsequent production units are expected to be powered by Ukraine’s Ivchenko-Progress AL-222K-25F turbofan engines with afterburner once co-production license is obtained by the 618 Institute.

The details from the wiki and globalsecurity.org look pretty light. Does anyone have more granular details about the L-15 lead-in fighter trainer or its program history? Please if you could cite exact sources that would help add to the wiki it would be greatly appreciated.