Honeywell International, Inc. 115 Tabor Road, Morris Plains New Jersey June 8th, 2023 VIA ELECTRONIC MESSAGE To Our Valued Customers Dear Sir/Madam, The purpose of this letter is to notify you of a rationalization effort impacting the Advanced Metals product offerings from Honeywell. Several product lines will be discontinued as the business transitions and centers on key products in line with longer term strategic goals. A list of all SKU’s being discontinued will be provided as an attachment. It includes all Au and Ag alloys, B2O3 products, and several other product lines. This list is comprised of all SKU’s sold since 2020 that are being discontinued. If there are SKU’s within the same product family not sold in this timeframe they would also be considered obsolete after 2023. We understand that discontinuation of these products could have significant impacts to our customers and downstream businesses. To support the transition, these products will continue to be offered until the end of 2023. Please place any last time buy orders with requested delivery dates by the end of this year. We thank you for your support as Honeywell undergoes this business transition. If you have any questions, please reach out to your Honeywell account manager. Thank you. Best regards, Tim Giles Product Manager Honeywell Electronic Materials