Don't think I saw this posted here, wasn't sure if others were aware so thought would post:
Registration required:
https://www.sc.com/hk/campaign/wow-summer-2017/
Two Phases:
7/1-7/31
8/1-8/31
Cashback on local dining / online (foreign or local) transactions per phase:
3% (Below HK$5K of accumulated eligible spend, max of HK$75)
7% (HK$5K-9,999, max of HK$150)
15% (HK$10K+, max of HK$500)
Note that accumulated eligible spend is NOT limited to dining/online, but excludes autopay, bill payments, and AAVS.
If playing with only dining/online transactions on the SCB AM card (which I suspect most people would), cashback ranges from 1.5% to 5% on total spend (excluding regular AM earn). Not something where I plan on hitting specific targets, but I registered since just an additional bonus for me (I use SCB AM card for dining on ongoing basis).