Stevia Wunderpflanze

Dear Sir or Madam, I am planning to set up a business that imports and markets Stevia in Germany. Therefore I'd like to know the prices for the logistics of importing Stevia. What will it cost me? How best to transport it? And what do I have to keep in mind when transporting (packaging, and how to keep it from expiring). It would be really nice if you could help me. Thanks a lot in advance! Kind regards Claudia Zumpe