1. The opening time and place should be specified in the first paragraph. The model essay is as follows: Hello! Our bank is scheduled to hold its opening ceremony in XX Building, XX Road on XX.
2. In the second paragraph, if you want to write a blessing, the model essay is as follows: On the occasion of the Spring Festival, we sincerely invite you to bring all the staff to the construction site. The bank wishes you a happy holiday and is honored to invite you.