The World Trade Organization site provides additional data on disaggregated trade flow rankings; patents and trademarks; bound tariff rates; tariff quotas and special safeguards for agricultural products; tariff frequency distribution by duty ranges; tariffs by HS defined product groups; and analysis of trade with major trading partners including bilateral trade flows, diversification, preferential margins and MFN average tariffs.

The International Trade Centre site provides more detailed data on trade flows and tariff barriers; analysis tools to generate user defined graphs, charts and tables based on trade flows and tariff barriers; comparison tools to evaluate the importance of a product or market to a country; unit price of imports and exports; analysis to the HS 8-digit level allowing tariff escalation evaluation at the product line level; a simulation tool to evaluate the effects of tariff changes utilizing different formulas; product level information on applicable trade regimes and Rules of Origin; mapping of FDI by sector, product diversification, and geographical diversification.

The United Nations Conference on Trade and Development site provides historical data series to the 1940s for many indicators; in depth intra-regional and intra-trade group data; extensive data on bilateral trade flows; disaggregated product level merchandise trade flows by country, region and trade group; tourism and merchant fleet data; detailed disaggregation of services trade data; prices and value added for commodities; BoP, reserves, financial flows, and long term external debt data; Millennium Development Goals data; and TRAINS tariff data, available through WITS.

Other important sources of data for the WTI database are:

United Nations Commodity Trade Statistics

World Integrated Trade Solution (WITS)

Doing Business Indicators

World Governance Indicators

Logistics Performance Index