Manganese needed

Hi, We have a strong demand of Manganese in China, and we want to import it from Australia. If you have any sources on this, pls contact us. The following questions are we concerned: 1. What is the condition for purchasing Manganese? 2. What is the minimum amount to start an Importation? 3. Current Price: Monthly/Quarterly 4. Other requirements. Thank you very much! Regards Claire