上海建发致新医疗科技集团股份有限公司关于变更投资者联系电话的公告
Core Points - The company has changed its investor contact number to improve investor relations management [1] - The new investor contact number is 021-60430629, replacing the old number 021-60430840 [1] - Other contact information, such as the company's registered address and email, remains unchanged [1]