Perhaps if you could be more specific as to what you need, we could be of more help. What is it you want to know about these inequalities?
In general, globalization only helps countries that already have some advantages. You have countries like China being helped because they already had a stable (if repressive) government and an educated population. Contrast that with many African countries that have not benefitted much from globalization. These countries lack stable government, educated populations, and basic infrastructure. This has made it much harder for them to benefit from globalization and has increased inequality in the world.