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Hi Lyndsey, Thank you so much for this feedback. While it’s not great news for UTAK, we really appreciate you sharing what your experience was like and why you switched to Bio-Rad. If there is ever an opportunity to win your business back we would love to connect with you. I am happy to report our stock out issues are no longer and we have made some improvements in our shipping process as well to address breaking vials. 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: Lyndsey Mertz <LMertz@dekabatteries.com> Sent: Thursday, August 21, 2025 10:45 AM To: Andrew Hartmann <ahartmann@utak.com> Subject: RE: UTAK- are you still testing for lead? Good morning Andrew, We are still doing this testing but have moved to a different brand of lead QCs. We had to order a low level from Bio-Rad due to the low level from UTAK being backordered for several months. We also had received broken multiple broken vials of the UTAK QC several times (I believe it was three times total). We were happy with the QC we received from Bio-Rad and continued to order all of our QC levels from them. I hope this helps. Best, Lyndsey A. Mertz Clinical Lab Coordinator East Penn Manufacturing Co. 102 Deka Rd., Lyon Station, PA 19536 Ph. 610.682.6361 x4291 lmertz@dekabatteries.com From: Andrew Hartmann <ahartmann@utak.com> Sent: Thursday, August 21, 2025 10:55 AM To: Lyndsey Mertz <LMertz@dekabatteries.com> Subject: UTAK- are you still testing for lead? You don't often get email from ahartmann@utak.com. Learn why this is important [EXTERNAL EMAIL] ***WARNING: This email originated from outside East Penn. DO NOT click links or open attachments unless you recognize the sender and know the content is safe.*** Hey Lyndsey, It’s been a bit since we saw you last order your lead QC’s and wanted to check in and see if you are still doing this testing? Any update either way is really appreciated. If you have moved away from UTAK we would greatly appreciate any feedback you can share into why. If there is anything we can do to be of support please don’t hesitate to 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