Ans:

The Trade Leads (Offer to Buy and Offer to Sell), Products, and Companies will be categorized into different industries. There are 16 industry categories those have 290 sub-categories.

There is "tree style" menu always displayed on right-hand side of web pages (Trade Leads, Product Catalog, and Company List). Click the node of tree (industry category or sub-category, e.g. Computer Products or Hardware). The results from individual industry category or sub-category will be displayed on the same page.