You need to apply for a vis ato Hong Kong.
1, Passport: Check your passport beforehand; Make sure that it has at least 6 month validity and at least 2 blank pages.

2, Properly completed visa application form with one recent passport-size color photograph. Please note incomplete application is not acceptable.

3. Company bank statement (latest month)

4. Travel itinerary

5. Copy of BRC (Business Registration Certificate)

6. Company pay sheet (last 3 month)

From 3 to 6, you'd better provide as a strong support if any, Other supporting documents are necessary if they are requested by visa officer.