I think that just leaves Russia, China, Turkey and Japan as countries affected and none of them are particularly large steel exporters to the US.
The supposed reasoning for these tariffs, that it would bring back steel/aluminium manufacturing jobs to US, was shaky to begin with but this makes it even more unlikely than if it had gone through as originally crafted - no company is going to give the green light to make large scale infrastructure investments based on trade policies that change on a whim. All this choas and confusion will just have made the US less attractive as a manufacturing base for any company as they would have no idea if the planning assumptions would be overturned by presidential posturing overnight.
