Huawei is one of the top-selling phone globally. Recently Huawei confirms that they Mate 20 series will not be officially available in the United States.
If a customer wants to buy this phone they have to find international variants of them. The company is not selling the phone because the United States is suspect that Huawei spies for the Chinese government.
According to the statement given to businessinsider: “We are not planning to sell the Mate 20 Series in the US. We encourage individuals to carefully read the details about the warranty and network compatibility before purchasing through the online retailer”