7. Company A and Company B are both enrolled in labor insurance each with its own distinct insurance number. Both companies merge, forming a new company. How should it apply for labor insurance enrollment?

When the two companies emerge into a new company, it can enroll in labor insurance via the following methods:

1. Withdraw both company employees' insurance and the new merged company shall insure them again.
    
2. Keep Company A's (or B's) insurance number, register with the Bureau of Labor Insurance regarding changes to the name of the insured unit to the name of the merged company, then withdraw Company B's (or A's) employees' insurance, and transfer their insurance to Company A (or B).