To apply for a Saudi Business Visit Visa, you will need: (1) your original passport with 2 blank adjacent pages and at least 6 months validity, (2) passport-style photos against a white background, (3) a letter of invitation issued by the Saudi Ministry of Foreign Affairs (MoFA), (4) a completed visa application form, (5) an employer support letter carrying an original wet ink signature, and (6) proof of your UK residence if you are not a British citizen.