Sure, here it is.
1. Get items Sharepoint list
2. Then Select - mapping email:

3. Compose - getting unique emails, expression is:
union(body('Select_-_get_emails'),body('Select_-_get_emails'))

4. Filter array&create HTML table. Output is from Compose action.
Value for filter array is: items('Apply_to_each')?['COEsemail']
Body in create HTML table is from Filter array.
