Pakistan Air Force and Chinese Aviation Industries have agreed for long-term collaboration and co-development in aircraft manufacturing and other related fields including AWACS, says an official statement. A memorandum of understanding (MoU) has been signed between the Pakistan Air Force and a Chinese aviation company, CETC, for the improvement and further development of Chinese Airborne Early Warning System. The same may be delivered to Pakistan in the coming years. Pakistan Air Force is already collaborating with another Chinese Aviation Company, CATIC, for the co-development and co-production of JF-17 Thunder fighter aircraft. Eight JF-17s are expected to be delivered to Pakistan in the year 2007. During the current visit of Chinese President Hu Jintao, Pakistan and China have signed thirteen agreements and MoUs worth $3 billion to undertake joint ventures in various sectors.