^Because, that's where we've decided to send our steel industry, and that's where we ship all of our scrap metal to
All because it's a few $$ cheaper (and the overall quality isn't as good) When I was taking my Civil classes a few years ago, a professor I had showed us some buildings that failed during construction because the steel I beams from China did not have the same design strengths and qualities that were used in the ASI design manual that we have come to expect from the former US steel industry.