would like to see what are the requirements for a 1 year multiple entry visa to china.

Serge, if you don't have valid long-term resident permit (at least valid for six months), then I am afraid that you may not be able to apply in Malaysia. Even you apply in your country, you may not be able to get a multiple one if you didn't go to PRC before.

The requirements for a multiple entry one are the same as the single or double entry ones. You just need to provide documents that prove you really need to stay that long. And previous entry permits might be helpful.