You appear to be not very well informed. Here's an interesting bit of information for you: Remember Lee Iacocca, CEO of Chrysler? He was a fierce, loud Japan-basher. He wanted stiff tariffs on imports of Japanese vehicles and parts. But he bought a lot of anti-rust steel from Japan Steel and he made it into minivans and Spirits and Acclaims and LeBarons and such. He did it because no American steel company could provide a rust-resistant steel as good as that from Japan Steel, and later because no American steel company could provide a good rust-resistant steel at a reasonable price. And that is why, in salt country, you still see a whackload of 1st and 2nd generation Chrysler minivans still in good shape, still in daily service, when almost every last Aerostar and Astro/Safari of the same age long ago rusted into a little pile of red dust. It's why, in salt country, you see thirty Spirit/Acclaim/Lebaron cars on the road, mostly intact, for every one rusted-to-hell Tempo/Topaz or Cadavalier of the same age. It's why you never see a Chevrolet Celebrity any more, but you still see K-cars: because despite Iacocca's loud Japan-bashing, he bought the best product available for the money, which is the real American way. (That makes him something of a hypocrite, of course, but that's a different discussion.)
As for Taiwan, plenty of good steel comes from there, too.