Cathay Pacific Asia Miles - Points transfer to Asia Miles of supplementary CC holders

Generally it is known that the transfer of credit card points to someone else's Asia Miles account is disallowed by banks in HK.

But does anyone know of any banks that allow the transfer of credit card points to the Asia Miles account of the supplementary (as opposed to only principal) credit card holders? From checking with the banks with whom I hold cards, neither DBS and Citibank would allow, but Stanchart would.

really, didn't know SCB allow this...could be quite handy when I need to transfer my wife's points (to my DM account instead of her GR one - for easier availability of awards). but, of course, I'm using SCB less now because of its no-cap transfer fee...