What are the procedures for opening a small rice noodle processing factory?

Well, if you just open a small processing factory in the countryside, you don't need a license at all. If you want to apply, you have to apply for a business license, pay a fixed tax every month (there are differences in different places, we have more than 200/month), as well as a food hygiene license (difficult) and a fire inspection certificate. I suggest you do it first. We'll talk about it when the industrial and commercial inspection finds you. Of course, you should also operate in good faith to ensure food safety, otherwise it will be very troublesome. I wish you a happy day! Have fun!