I wonder if Huawei bought up a 3-5 year's supply of that part as a one time buy as they well knew they might soon get cut off when their product hit the market?

I wonder if Huawei bought up a 3-5 year's supply of that part as a one time buy as they well knew they might soon get cut off when their product hit the market?. I wonder if TSMC will reveal these details.