1. PROFIT COMPANIES
   1. Public companies
      1. Bonds
      2. Shares to public
      3. Stock exchange
      4. Capital structure
      5. Management team
   2. Private companies
      1. No shares
      2. secretary
      3. Director
      4. Capital
   3. State-owned companies
      1. Government offices
      2. Public libraries
      3. Nuclear factory
      4. Mining
      5. Reserve bank
   4. Personal liability companies
      1. Directors
      2. Secretary
      3. Office
2. NON-PROFIT COMPANIES
   1. Social activities
   2. Cultural activities
   3. Public benefit
3. PARTNERSHIPS
   1. Co-owners
      1. 00：00 ~ 00：00
         1. yoga
   2. Contract
   3. Share profit/lost
   4. Capital contribution
4. CLOSE CORPORATIONS
   1. No shares
   2. Members
   3. Management
   4. Legal personality
5. BUSINESS TRUSTS
   1. Estates
   2. Creditor
   3. Trustees
   4. Beneficiaries
   5. Preservation of wealth
6. EXTERNAL COMPANIES
   1. Foreign companies
   2. External organisations