For dress code, I think stick with monochrome colour is the safest. I will respect business meeting with people with suite, even though you know that Singapore is a warm country, generally office people are stay in freezing aircon. So long sleeve and thin jacket are well accepted. Be prepare that you could be exposed to 18 degree meeting room you wear short sleeve.
If you are into art/media production, you need to bring enough examples of the past cases to show and
calibrate the local taste.
Some management here are still very conservative tolerance level of "creativity" might be limited. Some younger management are more willing to try new things.
Just my 2 cents worth of comment. From a marketer who sometimes deal with media vendors.
