If you are a shoemaking enterprise, which produces 6.5438+0 million pairs of shoes a year, and its main business is shoemaking, then the income from shoemaking must be included in the column of "income from main business", because shoemaking is "main business". Income other than "main business" is called "other income"
Shoe-making enterprises have transferred a trademark, which may just be idle for many years and occasionally seen by others, so they sell it to others to earn income. This income is obviously not obtained on a regular basis, so it will not be included in the "main business income", but included in the "other income".
If the trademark agency service company relies on trademark agency and trademark transaction to obtain regular income, then the income obtained from it must be the company's "main business income".
If this trademark agency gets a batch of shoes because others pay their debts, it is obviously not regular income to get rid of the shoes and get income. Such income must be included in "other business income".