MAYO JASON

From: MAYO JASON

Sent: Wednesday, March 18, 2026 10:56 AM

To: ‘Terence Tang’; MINSTER DAN

Subject: RE: [External]Subject: FORMAL NOTICE: Staged Test Environment & Active Suppression

of Evidence — Claim #42647461

Categories: Yellow category

Hi Terence,

Thank you, for letting us know. That is a very shocking email message, and | assure you we took no steps
to stage the environment. | will follow up accordingly.

| will be sure to reach out if we need your assistance again for any retesting.

Thank you,

Jason Mayo

Manager, Safety and Environmental Compliance
Railway Safety and Security

C: 672 208 4270

BC Rapid Transit Company (BCRTC)

6800 14th Ave, Burnaby, BC V3N 487, Canada

| Together all the

From: Terence Tang <ttang@arcose.com>

Sent: Wednesday, March 18, 2026 9:54 AM

To: MAYO JASON <JASON_MAYO@BCRTC.BC.CA>; MINSTER DAN <DAN_MINSTER@BCRTC.BC.CA>

Subject: FW: [External]Subject: FORMAL NOTICE: Staged Test Environment & Active Suppression of Evidence — Claim
#42647461

EXTERNAL WARNING: This email came from an external source. Please use caution when opening attachments or

clicking on links, and only do so when you are expecting them from a known sender or can confirm they are legitimate
and safe.

Good morning Jason/Dan,

FYI, We received this email today.

Terence Tang, CIH, CRSP
Sr EHS Consultant

000019