Yes you can own a US company and manage it from China.
Creating a company is easy. But there are two problems to solve that are not so easy.
— Banking. You can open a bank account for your US company even if you are a nonresident, but you will need to go to the bank in person.
— Tax. You will want to understand how your US company’s profits will be taxed in the US and make this as efficient as possible. This requires talking to someone with some skill and experience: someone who knows cross-border tax rules.