Imagine if someone in the USA got sick after eating your Sirsop Sea Salt and sued you?!
I would imagine there would be some measure of safety being in Indonesia and the company probably wouldn't be in your name. You could also blame the supplier if you didn't want to take responsibility :)
I have looked into selling on Amazon through their FBA program and they have some approvals you need to go through for food, but Amazon have a lot of info on their site, as wells as info on blogs and forums.
If you go to Amazon and search for "Bali salt" you will see many people selling it already. The different salt mixes the company made like with garlic, weren't great IMO so was hard to get excited about.
This guy had a good idea a while back importing coconut chips from Thailand:
https://mixergy.com/interviews/dang-foods-with-vincent-kitirattragarn/ The podcast might give some inspiration to find something similar in Indonesia.