Official Baofeng Comparison Chart

Here you can see the Official comparison chart from Baofeng/Pofung in all it's splendor and glory showing the different models that are available. What is interesting is that it shows that the UV-5R series of radios did NOT come in a 220 MHZ model. Their is also a note on the bottom that mentions certain dealers who paid to have the radio re-branded as something else. So how did the 220 models like the UV-5RAX sold by RadioMart and others come to be ?