Any enterprise in China is a non-joint-stock company as long as the owner (business owner) who directly operates the enterprise is a China resident, has sufficient funds for personal operation, and does not need to raise funds by means of loans, fund-raising, issuance of funds and shares, and does not need to be a state secret enterprise.
In other words: you are the beneficiary of a company or business owner, you don't need other people to participate in the investment, and there is no dividend system. No matter your scale is a group or an industry, you are a non-joint-stock company or enterprise.