Could you please tell me is there any special arrangement for older adults outside HK to collect social security payments under pandemic conditions?

My pleasure.

That’s very kind of you for the detailed reply.

To facilitate the withdrawal of monthly allowance outside Hong Kong, retail banks in Hong Kong support the use of the ATM cards issued by banks in Hong Kong to withdraw cash outside Hong Kong, and allow recipients to activate this function of their ATM cards on the Mainland through different bank channels. You can find more details here: https://www.swd.gov.hk/en/index/site_whatsnew/