Dear Michael,
I believe the info in the email that you had attached have already been reflected in the tender submission(s).
Ideally, we should just use the latest, most up-to-date and relevant submission. Quoting so many amended documents will only confuse matters - unless the subsequent amendments are not comprehensive enough to be read by themselves.
OCBC is not preparing the Contract. They just want to verify the info in the LOA and subsequent building contract. The more info they have, the more confused they become.