Pls is there any Houseware and Kitchen Utensils wholesale market in Shantou or nearby?

I'm afraid there isn't a gathering point for wholesale of the mentioned items in te city, so do the nearby cities. They are scattered one from another. You can try your luck at Longhu Street in ST.

Or if you have time, you can go to Guangzhou. There are many such markets there. Here is a brief list for reference:
Nantian Kitchenware Wholesale Market to the north of Luoxi Bridge;
Nantai Kitchenware Wholesale Market on Jiangyan Road.