Revenues from domestic and export sales are attributed to a global geographic region according to the location of the customer’s primary manufacturing or operating facilities. Revenues from domestic and export sales to unaffiliated customers for the three months ended August 31, 2026, and August 31, 2025, respectively are as follows:

For the three months ended August 31, 2026 and August 31, 2025, approximately 58% and 41%, respectively, of the Company’s sales have been attributable to contracts with customers whose products are sold to the United States government. The remaining 42% and 59%, respectively of sales are for non-military, scientific and industrial applications, or to distributors where we do not have end user information.

Revenues from domestic and export sales are attributed to a global geographic region according to the location of the customer’s primary manufacturing or operating facilities. Revenues from domestic and export sales to unaffiliated customers for the six months ended August 31, 2026, and August 31, 2025, respectively are as follows:

For the six months ended August 31, 2026 and August 31, 2025, approximately 61% and 46%, respectively, of the Company’s sales have been attributable to contracts with customers whose products are sold to the United States government. The remaining 39% and 54%, respectively of sales are for non-military, scientific and industrial applications, or to distributors where we do not have end user information.

Customers who contributed ten percent or more of revenues for the three months ended August 31, 2026, and August 31, 2025, respectively are as follows:

Customers who contributed ten percent or more of revenues for the six months ended August 31, 2026, and August 31, 2025, respectively are as follows: