Note 9. Major Customer Concentration

For the three months ended March 31, 2022, Customers A, and B comprised 14% and 13% of the Company’s net sales, respectively. Customers A is a distributor and Customer B is a regional broadband service provider. For the six months ended March 31, 2022, Customers A, B, and C comprised 13%, 12% and 11% of the Company’s net sales, respectively. Customers A is a distributor and Customers B and C are regional broadband service providers. For the three months ended March 31, 2021, Customers A and D comprised 21% and 11% of the Company’s net sales, respectively. For the six months ended March 31, 2021, Customers A and D comprised 20% and 11% of the Company’s net sales, respectively. Both of these customers are distributors. These major customers, like our other customers, purchase our products from time to time through purchase orders, and the Company does not have any agreements that obligate these major customers to purchase products from us in the future.

As of March 31, 2022, Customer D comprised 11% of the Company’s accounts receivable. This customer is a distributor. As of September 30, 2021, Customers C was 17% of accounts receivable. Customer C is a regional broadband service provider.