MARKET SECTORS AND MAJOR CUSTOMERS

12 Months Ended

Sep. 30, 2018

A summary of sales, according to the market sector within which IEC’s customers operate, is as follows:



	Years Ended
% of Sales by Sector	September 30, 2018	September 30, 2017

Aerospace and Defense	59%	52%
Medical	22%	28%
Industrial	19%	20%
	100%	100%

Two individual customers represented 10% or more of sales for the year ended September 30, 2018. One customer in the aerospace and defense sector totaled 23% and one customer in the medical sector totaled 11%. In the prior fiscal year, two individual customers represented 10% or more of sales, one customer in the medical sector totaled 14%, while the other customer in the aerospace and defense sector totaled 13%.

Three individual customers represented 10% or more of receivables and accounted for 55% of outstanding balances at September 30, 2018. At September 30, 2017, three individual customers represented 10% or more of receivables and accounted for 42% of such outstanding balances.

Credit risk associated with individual customers is periodically evaluated by analyzing the entity’s financial condition and payment history. Customers generally are not required to post collateral.