Help, renew four years Short-term 482 VISA

[Aron 45]

Hello,

My friend, a Chinese, is going to apply a  Short-term 482 VISA as an ICT support engineer.   

Since China is under International Trade Obligation (ITO)  with Australia, he has a chance to get a four years Short-term 482 VISA, am I correct?

And at the end of four years, he can renew the Short-term 482 VISA once, which allows him to stay another 4 years, am I correct?

I know it is not mandatory for home affair to grant him a 4 years VISA, and policy can change, and there are also risks for temporary workers. However, I just want to know, under current policy, ideally, he has a chance to work in Australia for 8 years, am I correct? 

 

[Aron 45]

And if he goes offshore, he can renew the short term 482 VISA more than one time and the one time limitation is only for onshore, am I correct?