Last year IHG initiated a “Straight to Diamond” offer for select corporate clients and made it public by mistake, and many people had signed up to it before the loophole was closed. IHG has brought back the offer now, but is being much more careful this time.
You can check the offer details here. Quite similar to what was offered last time, a member receives a 120-day Diamond trial upon successful enrolment, and they would need to stay 10 nights within 90 days to complete the status challenge.
However, you cannot sign up yourself this time. Only IHG’s sales team, or any full-service hotel in Greater China can enrol you manually. To be eligible, you need to work for a company that is invited by IHG to partake in this promotion.
If you believe you are eligible (e.g. your company has agreements with IHG), especially if you have a recent / upcoming stay with an IHG hotel in Greater China, it’s worth enquiring with the relevant department or the hotel to see if they can register you.