Wat documents should I provide for a visa to Hong Kong for a business trip

Application for Entry (ID 1003A)
Recent photograph (affixed on page 1 of the application form ID 1003A)
Photocopy of your passport
Photocopy of proof of your financial standing, e.g. bank statements, savings accounts passbooks, tax receipts, etc. and proof of employment (if any), e.g. company leave letter, salary slips, etc.
Photocopy of proof of transportation arrangement, e.g. flight itinerary
Photocopy of proof of the proposed business visit to Hong Kong, e.g. letter issued by your employing company to confirm your proposed business activities in Hong Kong, invitation letter issued by a local company, letter issued by a trade body to confirm your attendance at trade fairs and exhibitions, etc.