SkyTeam had too many Mainland carriers already: CZ, MU and MF, not to forget FM. They failed to add too much value to the alliance, not to mention that alliances themselves have plateaued in importance. If Oneworld does manage to allow room for both CZ and CX, it can take a stranglehold on the Pearl River Delta, combining Asia's largest airline (by fleet size) with one of its most premium (by popular perception). This also shows that AA and DL are the biggest kingmakers within their respective alliances.
This will be the first big exit of an airline from an alliance in years that isn't due to a shutdown. I believe FM (Shanghai Airlines) was the last one in 2011 (TAM and US Airways should not be considered).
MF belongs to CZ and MF belongs to MU. So technically there are just 2 carriers in Mainland, but I agree, 2 is still too much.
You mean FM belongs to MU. Still, I don't agree with the vast majority of the posters on this thread. I don't know why people feel CX will veto CZ from joining Oneworld. The alliance stands to profit from a Mainland member, not least due to the massive domestic network. CX/KA can only do so much to cover the PRC without a Mainland member, and it will move a step in the U.S. direction (the big three airlines in the big three alliances). In the event of CZ joining Oneworld, OW stands a lot to gain if there is something as a CZ-CX partnership. CZ can maintain its codeshares with Air France-KLM and CX with all the Star members without too much fuss. The biggest beneficiary will be Oneworld as it will suddenly be in a much stronger position both in the Pearl River Delta and at Daxing.
Furthermore, an airline as big as CZ ought not to stay out of an alliance for a long time. Among full-service airlines of a comparable size, only EK and HU are outside an alliance, and they are half the size of CZ. Therefore I suppose it is in the best interest of CZ to join Oneworld within two years at least.
In grieving remembrance of the thousands of people who lost their lives on ET-AVJ, PK-LQP, XA-UHZ, S2-AGU, CP-2933, SU-GCC, EI-ETJ, D-AIPX, PK-AXC, 9M-MRD, VT-AXV and above all 9M-MRO, besides many more. Your deaths are not in vain. Safety first, always.