In the case of a letter sent First Class Mail, there is a $0.25 charge per additional ounce. 20 cents, up from 20 cents in 2020. Padded Flat Rate Envelope $8.75 Commercial Base $9.30 at Post Office & ...

but companies continue to offer unique and fancy red envelopes, or lai see packets, to clients as an inexpensive way to promote their brand and business. HSBC and ICBC (Asia) have taken the ...