I found it. 😃😃😃

And it is probably not a coincidence that the staff at the facility are posed on the beach. The cable goes into a bore pipe on the beach and into the facility. Infrapedia was useful because it allowed me to pinpoint the building. Then I used the building's owner to get the street address.

https://www.infrapedia.com/app/cls/vung-tau-viettel

https://www.google.com/maps/place/Viettel+B%C3%A0+R%E1%BB%8Ba+V%C5%A9ng+T%C3%A0u+(Ch%C3%ADnh+th%E1%BB%A9c)/@10.3647686,107.0847827,19z/data=!4m8!1m2!2m1!1zdmlldHRlbCBjYWJsZSBsYW5kaW5nIHN0YXRpb24gbmVhciBQaMOzIMSQ4bupYyBDaMOtbmgsIFRo4bqvbmcgVGFtLCBUaMOgbmggcGjhu5EgVsWpbmcgVOG6p3UsIEJhIFJpYSAtIFZ1bmcgVGF1LCBWaWV0bmFt!3m4!1s0x31756f4c2a612769:0x45739089e004af9d!8m2!3d10.3646899!4d107.0848851



From: Sean Donelan <sean@donelan.com>
Sent: Wednesday, March 10, 2021 4:38 PM
To: Rod Beck <rod.beck@unitedcablecompany.com>
Cc: Mehmet Akcin <mehmet@akcin.net>; North American Network Operators Group <nanog@nanog.org>
Subject: Re: Cable Landing Station Address
 

Street addresses aren't universal in all countries.

On Wed, 10 Mar 2021, Rod Beck wrote:
> That little blue dot is the target. 🙂
>
> https://www.infrapedia.com/app/cls/vung-tau-viettel