Legal basis: Civil Code of People's Republic of China (PRC).
Article 517 Where there are two or more creditors, and the subject matter can be divided, if each creditor enjoys the creditor's rights according to the share, it is the creditor's rights according to the share; If there are two or more debtors, the subject matter can be divided, and each debtor bears the debt according to its share, it is a debt by share.
If it is difficult to determine the share of the creditor or debtor according to the share, it shall be deemed that the share is the same.
Article 518 Where there are two or more creditors, and all or part of the creditors can request the debtor to perform the debt, it is a joint creditor's right; If there are more than two debtors, and the creditor can request some or all debtors to perform all the debts, it is a joint debt. Joint creditor's rights or joint debts shall be stipulated by law or agreed by the parties.