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Happy Monday Karen! Thanks for the follow up and additional details. The quote request are submitted and our team should send you these in a few days. For the DAU control not needed until April. Will this need to be invoiced by the end of this year? Otherwise what I am thinking is to have you send me the PO and I’ll set it up in our system to not start manufacturing till March and ship around April 1st. This way we know we have it and wont’s have any issues delivering when you need it. And thanks for the contact info for Shelby! If I can be of any support please reach out. 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: Bolhuis, Karen D. <Karen.Bolhuis@corewellhealth.org> Sent: Monday, September 15, 2025 12:11 PM To: Andrew Hartmann <ahartmann@utak.com> Subject: Re: UTAK Labs- Scheduling Our Quarterly Business Review (CID:004600) Hi Andrew, sorry for the delay. I was waiting on my director's official word on QC values for the PETH control. 1. What fill size per vial do you want? We recommend 1 day use vials for this QC. Our sample volume is only 100 mcL/per use, so if possible, can we go as low as 500 mcL? 2. How many total vials do you want made of each level. 150 of each level 3. Lastly, we just need your specific analyte(s) and desired concentrations. Specific analytes are the PETH 16:0/18:1 and PETH 16:0/18:2 with 3 levels. 15 ng/mL, 250 ng/mL, and 750 ng/mL. The other QC I need, but will not need the product until approximately April 1, 2026, is the Drugs of Abuse Control Levels 1 and 2. The lot numbers UTAK assigned are D4154 and D4155. To the D4154, level 1, I would like Fentanyl at 20 ng/mL added. To the other lot I would like Fentanyl added at 150 ng/mL. Shelby's email is shelby.cunningham2@corewellhealth.org Karen