泰国采购需求：高岭土、高岭土粉、瓷土

I'm looking to source calcined kaolin that is completely free of fluoride. Our monthly requirement is around 400 metric tons, and we're interested in exploring options for both pricing and delivery timelines. Could you please provide detailed specifications, availability, and any minimum order quantities? It would also be great to know about your packaging options and any relevant certifications for the product. Looking forward to your prompt response!