Complex sentence: Nanjing Auto has had at least two joint ventures with the Italian automaker Fiat, a 50/50 joint venture set up in 1999, but that collapsed sometime in 2007, and Naveco, a joint venture with Fiat's commercial vehicles unit, Iveco, established in 1996.
Split into simpler sentences: Nanjing Auto has had at least two joint ventures with the Italian automaker Fiat. A 50/50 joint venture set up in 1999, but that collapsed sometime in 2007, and Naveco, a joint venture with Fiat's commercial vehicles unit, Iveco, established in 1996.