The Company derives substantially all of its revenue from the distribution of metals. The following table shows the Company’s percentage of sales disaggregated by major product line:

A significant majority of the Company’s sales are attributable to its U.S. operations. The only sales attributed to foreign countries relate to the Company’s subsidiaries in Canada, China, and Mexico. The following table summarizes consolidated financial information of our operations by geographic location based on where sales originated:

Revenue is recognized either at a point in time or over time based on (1) if the contract has an enforceable right to payment and (2) the type of product that is being sold to the customer, with products that are determined to have no alternative use being recognized over time. The following table summarizes revenues by the type of item sold: