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Dear Irina, Thanks for reaching out and for your continued partnership with UTAK! To avoid confusion and ensure accuracy, we’ve moved away from provision of real-time lot numbers, manufacturing dates, or inventory counts before or after orders, as these details can change quickly. If expiration date or lot number is critical for your order, we ask that you book a brief call with our team to align on your requirements and confirm availability. This step ensures we meet your expectations and document your preferences for future orders. 👉 Schedule a call with us here We appreciate your understanding as we streamline our process to better serve 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: Serna, Irina G <Irina.G.Serna@questdiagnostics.com> Sent: Friday, September 5, 2025 11:56 AM To: Andrew Hartmann <ahartmann@utak.com> Subject: RE: ***LOT INFO Needed*** Hi Andrew, When are you expecting to release new lots for both catalogs? Thank you! From: Andrew Hartmann <ahartmann@utak.com> Sent: Thursday, September 4, 2025 1:26 PM To: Serna, Irina G <Irina.G.Serna@questdiagnostics.com> Subject: RE: ***LOT INFO Needed*** CAUTION! This email originated outside of Quest Diagnostics. DO NOT click links or open attachments unless you recognize the sender and know the content is safe. Please report suspicious emails to: phish@questdiagnostics.com Hi Serena, Low cat# 66816 ot# D53359 exp. 3/31/2027 I think you mean lot D5359, yes this lot is still available. High cat# 66815 lot# D53356 exp. 3/31/2027 This lot is no longer available. Thank You,