I wonder what would be the usd/sgd rate they will use for the dividend payout?
From the Astrea 8 prospectus FAQs:
11) Do I receive interest and principal payments for the Class A-2 Bonds in US$ or S$?
Although interest and principal payments on the US$ denominated Class A-2 Bonds are made by the Issuer in US$, if you are a direct securities account holder of CDP who has applied for CDP’s Direct Crediting Service (allowing CDP to credit cash distributions into your designated bank account), you will receive these payments in S$ by default (converted by CDP at such exchange rate provided by CDP’s partner bank).
You may opt-out from receiving payments in S$ via CDP Internet. Upon opting out, your foreign currency cash distribution will not be converted. It will remain in your cash balance with CDP. Please note there is telegraphic transfer fee imposed by CDP in addition to applicable receiving bank charges per withdrawal request.
For more information, refer to the Currency Conversion Service (CCY) section under CDP’s FAQ page at https://www.sgx.com/cdpfaqs