Hunter-New England Area Health has named a number of new exposures in recent days. The bulk are in the Maitland area but they include some at Westfield Kotara.
New COVID-19 exposure sites 
Anyone who attended the following venues on the specified dates and times are casual contacts (unless they have been contacted by NSW Health as close contacts) and must get tested and isolate until a negative test result is received:

BP, 5 Glenwood Drive, Thornton Saturday 21 August
8.00am-8.10am

Kinn Thai, Westfield Kotara Wednesday August 25 from
6.30pm-6.40pm

Subway, Market Place, Raymond Terrace Wednesday August 25
11.55am-12pm

Wok Express 88, Raymond Terrace Wednesday August 25
12pm-12.05pm

Barrington Bakery, Raymond Terrace Thursday August 26
3.45pm-3.50pm

The Cheesecake Shop, East Maitland
Saturday 21 August from
11.35am - 11.45am

Discount Drug Stores, Thornton
Monday August 23 from
6.00pm to 6.10pm and 6.20pm to 6.30pm

Coles, Thornton Monday August 23 from
6.10pm-6.30pm

Windale Takeaway (6 Lake Street) on Saturday 21 August from 5.35pm - 5.45pm
A complete list of exposure sites can be found on the NSW Health website
here.