Happy new year
Hung PhamCo-founder, 9ThemeStore

Step 1 Log-in to back-end and go to the Component -> JoomShopping -> Configuration" menu.

Step 2Click the General icon and choose the Category / Product tab.

Step 3 Search the "Show buy button in a product list" label and check to that checkbox.

How to show Cart button on product list page

Step 4 Save your configure and back to front-end view all change.