IFRS 3 Business Combination

Dear Sir

Could you please assist me to understand the accounting requirement of the following case:

How should the following business combination be accounted for in books of Company B?

Company B acquires the business of Company by issuing own shares to shareholders of Company A.

Company A gets dissolved.

Shareholders of Company A and old shareholders of Company B hold 50% shares of Company B post combination.

Managemrnt of both the companies have equal representation in post merger scenario, by practically constituting a joint venture (Company B ) in which the old shareholders of A and B companies have joint control and right to net assets.

Also state who is an acquirer in this business combination transaction?

or this is loss of control transaction as per IFRS 10?

or this is common control transaction since ultimate controlling parties are same?

or this is reverse merger (I also don’t think this can be the case considering constitution of joint control)

How to account for Company B ‘s acquiring of business of Company A? – Can we consider this as equity contribution since the owners of Company B are losing control? I am considering this situation because if this is the case, then there will be no fair value gain loss on acquisition and transaction will be recorded at carrying value of Company A.

How to account for transaction in Books of Company A and Company B?

Thanks in advance. Appreciate your time and effort.

Warm regards
Mymoon