2010, China was reportedly in talks about the JF-17 with five or six countries, some of which had sent pilots to China to undergo test flights. Other countries Other countries including Bangladesh, Bulgaria, Egypt, Jordan, Kuwait, Peru, South Africa, Uruguay, and Venezuela have shown interest in the JF-17. Variants Prototypes PT-01 First airframe configuration prototype with splitter plates on intakes. Rolled out on 31 May 2003. First flight on 25 August 2003. PT-02 First airframe configuration prototype with splitter plates on intakes. PT-03 First airframe configuration prototype with splitter plates on intakes. First flight in April 2004. PT-04 Second airframe configuration prototype with Diverterless Supersonic Inlets (DSI) and modified vertical stabilizer. First flight on 10 May 2006. PT-04 incorporated modifications such as DSI, wider LERX, extended ventral fins, and a taller, less swept vertical stabilizer with a rectangular fairing at the tip containing electronic warfare equipment and small blister fairings at the base containing Missile Approach Warning sensors. The PT-04 prototype was primarily used for avionics and weapon qualification tests. PT-05 Second airframe configuration prototype with DSI and modified vertical stabilizer. PT-06 Second airframe configuration prototype with DSI and modified vertical stabilizer. Production variants In chronological production order: JF-17A Block 1 Single-seat variant of the JF-17 Block 1. Production in China began in June 2006 and in Pakistan in 2007. The first three Chinese weapons to be integrated are the PL-5E II AAM, the SD-10 AAM, and the C-802AK anti-ship missile. Block 1 aircraft had performed "better than expected" according to PAF Air Commodore Junaid. Production of Block 1 was completed on 18 December when the fiftieth aircraft58% of which was produced in Pakistanwas delivered. A Block 1 JF-17 costs approximately US$15 million per unit. JF-17A Block 2 Single-seat variant of the JF-17 Block 2. Production began on 18 December 2013 and initial testing began on 9 February 2015. Block 2 aircraft make use of composites in the airframe for reduced weight, air-to-air refuelling capability, improved radar and avionics, enhanced load carrying capacity, data link, and electronic warfare capabilities. Chairman of PAC, Air Marshal Javaid Ahmed said: "We will hand over 16 Block-II JF-17s to the PAF every year", and that the manufacturing plant has the capacity to produce 25 units in a year. According to local media, PAC rolled out the 16th Block 2 aircraft in December 2015 enabling the JF-17's 4th squadron formation. A Block 2 JF-17 costs