Question on Multiple Entry visa for British Citizen

Good Day,
I'm a British Citizen with residence (and my own RAK FZE consultant company) in UAE. I have had some close ties with a Chinese company and have visited China many times in the past few years. I'd like to visit them more often over the next year, they will send me the necessary invitation and pay costs for the visit too. Am I able to get a 1 year multiple entry visa ? What other documents do you need for my application.
Thank you.
Frank Pickard Trepess