新加坡采购需求：维生素

I'm interested in exploring the possibility of purchasing your products for shipment to the US. Could you please provide me with more detailed information regarding your product range, including specifications, pricing, and available quantities? It would be helpful to know about any current promotions or bulk order discounts as well. Additionally, I'd like to understand your lead times for production and shipping, especially for shipments heading to the US. If you have a catalog or a product brochure, that would be great to review. Looking forward to your prompt response so we can discuss this potential order further.