Russia is far behind Western countries in actually deploying AIP systems. Those Western countries are Sweden, Germany, Italy, France, Japan, Singapore and South Korea (other European countries?). Pakistan also has AIP (French MESMA).
Comment - It appears that Russia is not developing AIP for its own submarine corps but instead is devoting more resources to build up its nuclear propelled SSNs and SSBNs (with nuclear being the ultimate AIP). Customers have restricted their purchases to non-AIP Kilos - that are less expensive and less technically risky than AIP Ladas. It will be interesting if the Lada-Amurs or future Kalina sells - we are talking years.