Most of the time we also need to add extra ingredients to packaged food, because its mostly bland and the companies are trying to keep it generic, because taste is relative.

I don't know about ketchup from Indonesia, but Surinamese people like our ketchup a little to the sweeter side and that's how a Surinamese manufacturer is making its ketchup. So whenever I get the packages from fast food giants like Micky D's or KFC, I taste the difference in leaning more towards the sour side.