ICBC is offering additional cash back through March 31st. The following cashback percentages apply for the Platinum/Gold cards, respectively:

Amazon: 7.5% / 5%
Food/Grocery Delivery App: 7.5% / 5%
Online Shopping: 4.5% / 3%
Supermarket Purchases: 3% / 2%

There is a maximum additional cash back of $500 for the UnionPay Gold and $1,000 for the UnionPay Platinum cards.

Here is a link to the Ts&Cs.