I want to know requirement documents to get Hong Kong visa. It will be business trip for 5 days.

The documents required for submission are: the application form (ID 1003A), your recent photo affixed on page 1 of the form, photocopy of your passport, photocopy of your financial standing proof (bank statements, saving accounts passbooks, tax receipts, etc.) and employment proof (e.g. salary slip), photocopy of your transportation arrangement proof, and a photocopy of the letter issued by your employing company to confirm your proposed business activities in Hong Kong.