Singapore: Business Dress
In general, day-to-day office work requires what is best described as business casual. Long trousers and a shirt (short sleeves are acceptable) are one example of business casual dress. Depending on the business, ties are sometimes worn but typically no jacket (climate!) except for special functions (signing ceremonies etc.). Dress code then is usually communicated on the invitation. The foreign visitor, however, fares well if he or she is dressed a touch above the average dress code. Again, this depends also strongly on the business you are in, with banking and finance being more formal than others.