1. Unlimited liability company: refers to a company in which all shareholders are jointly and severally liable for the debts of the company.
2. Limited liability company: refers to a company in which all shareholders of the company are liable for the debts of the company only to the extent of their capital contribution.
3. Joint-stock company: refers to a company in which some shareholders bear unlimited joint and several liability for the company's debts, while other shareholders bear limited liability for the company's debts only to the extent of their capital contribution.
4. Joint stock limited company: refers to a company whose capital is divided into equal shares, and all shareholders are liable for the debts of the company only to the extent of their respective shares.
5. Joint-stock company: refers to a company whose capital is divided into equal shares, some shareholders are jointly and severally liable for the company's debts, and some shareholders are only liable for the company's debts to the extent of their shares.