Hello, My name is Mery, I am a purchasing manager of pharmaceutical company from Georgia, and I'm interested in buying 


 Colloidal silicon dioxide - CAS No. 7631-86-9 pharm grade 50 kg

I need to know about prices for these products and also need a CoA certification for both of them. when you write me the prices, please concrete this price is with shipment or no? 

Best Regards, Mery.