The announced limit doesn't seem like enough volume for BYD to roll out a dealership network, but maybe they do it in anticipation of higher limits in the future.
Volvo could be an immediate beneficiary. The Canadian EX30 was going to be cheaper because they could make them in China, but after the 100% US/Canada tariff was announced they had to switch to ones produced in Belgium iirc.
edit: Something I just read that I haven't seen reported elsewhere is that the imported EVs have to cost $33,000 or less. The EX30 currently starts at about $54,000, so... maybe not.