So the way I do this is:
A) to meet the requirements in section 4 I have a list of interested parties in a table that shows why the party is interested and what interest they have. This is high level... Customers, Suppliers, Local Government, Insurance Companies, Parent Company, Local Fire Department... this is not a list of individual parties.
B) in management review we go over this list and see if there should be any changes or additions to it, or if there has been any high level feedback from any of them - e.g. The town is putting an ordinance in place that could affect our outdoor storage.