美国采购需求：二甲基硅油、硅油

I'm looking to purchase 50 CSt Dimethicone for use in cosmetics and medical devices in the US. I require a complete Certificate of Analysis (CoA) with every lot delivered, as well as a Quality Agreement to ensure compliance. Anticipated annual demand is between 50,000kg and 100,000kg, with order sizes ranging from 10,000kg to 20,000kg. Please provide your most competitive pricing and a sample CoA for review.