In the following two sentences, I see a comma in the first sentence and but no comma in the second sentence. Is there any rule ? When should I place comma before such as?
When I visit Korea, I want to go to many cities, such as Seoul and Taegu.
Car companies such as Toyota and Ford manufacture their automobiles in many different countries around the world.
When I visit Korea, I want to go to many cities, such as Seoul and Taegu.
Car companies such as Toyota and Ford manufacture their automobiles in many different countries around the world.