1. PROFIT COMPANIES
   1. Public companies
      1. Bonds
      2. Stock exchange
      3. Capital structure
      4. Management team
   2. Private companies
      1. Trading
      2. Capital
      3. Law firm
   3. State-owned companies
      1. Mining
      2. Public libraries
      3. Nuclear station
      4. National Treasure
      5. Government offices
   4. Personal liability companies
      1. Office
      2. Secretary
      3. Directors
2. NON-PROFIT COMPANIES
   1. Public benefit
   2. Social activities
   3. Cultural activities
3. PARTNERSHIPS
   1. Contract
   2. Co-owners
      1. 00：00 ~ 00：00
         1. yoga
   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. Foreign organisations (NGO)