The following links will provide you with further important source information

Department of Commerce (DOC)   www.doc.gov
DOC Import Trade Administration   trade.gov/ia/index.asp
International Trade Commission   www.usitc.gov
World Trade Organization   www.wto.org
World Trade Organization - Antidumping   www.wto.org/english/tratop_e/adp_e/adp_e.htm
U.S. Customs   www.customs.gov
Federal Register   ia.ita.doc.gov/frn/index.html
Country Reports: Economic & Trade Practices   www.state.gov/www/issues/economic/trade_reports/index.html
OECD Statistics   www.oecd.org
World Bank   www.worldbank.org
Antidumping bei der EU   europa.eu.int/comm/trade/misc/sitemap.htm
VDMA   www.vdma.org
BDI   www.bdi-online.de
Wirtschaftsvereinigung Stahl   www.wvstahl.de