Not sure at all what you mean by 'Sino countries'.
AFAIK in Japan the predominant pre-Buddhist shinto beliefs paralleled Taoism in their nature-focus.
Korea and Vietnam had Taoism, at least in Vietnam it is still sort of alive, though Buddhism far dominates. In Korea Buddhism and Christianity dominate. Taiwan has numerous Taoist shrines, though Buddhism dominates it is not to the same extent. Mainland China has effectively killed off Taoism almost entirely.
Tao seems a bit like buddhism when it comes to the ephemeral, I like it.