Some other business income tax classification codes:

Intangible assets: 4

41: Technology

42: Trademark

43: Copyright

44: Goodwill

45: Right to use natural resources <

52: structures

53: other real estate

non-taxable items without sales behavior: 6

61: prepaid card sales and recharge

62: sales of self-developed real estate projects in advance

63: business tax declared and paid but not invoiced.