Found this at NHTSA site, looks like Sailun has recognized its problem:
NHTSA Recall No. 21T018
"Sailun Tire Americas, Inc. (Sailun) is recalling certain Sailun, RoadX, Blacklion, Blackhawk, and Ironhead brand tires, sizes ST235/80R16 and ST235/85R16 with DOT codes 2020 through 4120. Due to a...