according to the relevant information of the query, it is not necessary. The equity transfer agreement only involves the transferor and the transferee, and the equity transfer is only related to other shareholders in terms of their preemptive right. It is not necessarily related to the effectiveness of the equity transfer agreement that other shareholders agree to transfer or give up their preemptive right. Moreover, the industrial and commercial registration department does not review the effectiveness of the equity transfer agreement, but only confirms that the signatures of the parties to the equity transfer agreement are true. The industrial and commercial registration of equity change is the company's obligation, not the shareholders' obligation. Even the shareholders who are the parties to the equity transfer participate in the industrial and commercial registration of equity change as witnesses at most. To sum up, the industrial and commercial registration of equity change only requires the presence of the shareholders concerned and the legal representative (or authorized agent) of the company.