There are many shopping malls in the downtown area, here recommended some:
Trust-Mart
In the middle of the downtown, right beneath the center square underground, easy transportation.
Lotus
In the north west of the downtown, a thai cooperation's shopping center, offering variety of daily products with comprehensive prices.
Buxing Road
In the south of the downtown, famous for its traditional chinese small products like stamps, old money, pets and small hand made gifts.