China also has a 15% export tax to discourage export of primary aluminum: "The Chinese government, which relies heavily on imported bauxite, has long applied e

China also has a 15% export tax to discourage export of primary aluminum: "The Chinese government, which relies heavily on imported bauxite, has long applied export taxes on primary aluminum as part of a broader strategy to discourage exports of energy-intensive products and emphasize sustainable, quality growth" http://www.aluminum.org/news/aluminum-association-concerned-about-cnia-call-removal-export-tax-primary-aluminum http://www.aluminum.org/news/aluminum-association-concerned-... While it can be worked around by exporting semi-finished products instead, it must be doing something. Otherwise the US Aluminum Association won't be so concerned about its removal.