We have relationships with China and US based manufacturers. Masks from China are shipped directly to you from production or ready stock. All plants are certified for products they produce and are of high quality. We offer 2 different brands of KN95 masks to meet your supply needs. For additional information please contact us as we are eager to fulfill your needs. The price listed is only for 1M or more pcs and is exclusive to our China operation. Ready stock in the US would not be this price. We also have a supplier that has 50,000 gallons of hand sanitizer @ $50 per gallon.