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Hi Haley, Thanks for reaching out! Sounds like an exciting project. I can’t say I have heard of alcohol screening through hair before. Is it EtG/EtS you are looking for in hair, or something else? I attached the CoA from the lot I show you have on hand. As a blank matrix there is no IFU as usage is determined by the user. Regarding getting more of this matrix, can you reply to the below questions so I can get this quoted and see if I can get a discount/free of charge approved? 1. How many mL of matrix would you want to receive? 2. Will you be publishing any papers/posters or similar and noting UTAK as the supplier of the matrix? Thank You, Andrew Hartmann Business Development Manager – 25020 Avenue Tibbitts Valencia, CA 91355 – D +1.661.567.0667 P +1.888.UTAK.LAB F +1.661.294.9272 – Book a Meeting with Me https://calendly.com/ahartmann-utak/30min utak.com From: Haley Berkland <Haley.Berkland@restek.com> Sent: Thursday, October 9, 2025 7:01 AM To: Andrew Hartmann <ahartmann@utak.com> Subject: SMx Hair Hello Andrew! I am about to start working on a new project developing a workflow for alcohol biomarkers in hair. I see on your website SMx Hair is no longer a stock product for UTAK, but I was wondering if I might be able to get some for this project. We have a bottle of it that was purchased a few years ago (it has since expired) that I can use for my initial experiments but eventually I will need more. I was also wondering if you could send me the product insert/instructions for use for this product; I can't find them anywhere on the UTAK website. Thanks in advance! Haley Berkland Advanced Scientist, LC Applications 110 Benner Cir, Bellefonte, PA, 16823, USA Tel: +1 800-356-1688 | +1 814-353-1300 Haley.Berkland@restek.com | www.restek.com