Concentration of Risk

3 Months Ended

Apr. 30, 2023

The following significant customers accounted for at least 10% of the Company's net sales in one or more of the periods indicated:


	Three Months Ended
(percentage of net sales)	April 30, 2023		May 1, 2022
CEAC International Limited	6	%	13	%
Trend-tek Technology Ltd. (and affiliates)	5	%	18	%
Frontek Technology Corporation (and affiliates)	5	%	15	%

Outside Subcontractors and Suppliers

The Company relies on a limited number of third-party subcontractors and suppliers for the supply of silicon wafers, chipsets and other electronic components, and for product manufacturing, packaging, testing and certain other tasks. Disruption or termination of supply sources or subcontractors have delayed and could in the future delay shipments and could have a material adverse effect on the Company. Although there are generally alternate sources for these materials and services, qualification of the alternate sources could cause delays sufficient to have a material adverse effect on the Company. A significant amount of the Company’s third-party subcontractors and suppliers, including third-party foundries that supply silicon wafers, are located in the U.S., Taiwan and China. A significant amount of the Company’s assembly and test operations are conducted by third-party contractors in Vietnam, China, Taiwan, Malaysia and Mexico.