Does anyone know how to contact Embassy of Hong kong in vientiane

There is no HK embassy in Vientiane. You can go to the embassy of China in Laos to inquire about the relevant information you want to know about.
Office hours: 08:00 – 11:30 & 14:00 – 17:00
Tel: 00856-21-315100

Thank you so much
We Just went there this morning and here are some knowledge for those who also need to apply HK visa
passport at least 2-3 blank pages ,flight booking , hotel booking, and application form (ask from counter) there are 7 of us so they give only 1 application form and we have to get our copy for ourselves (can not find nearby the embassy you have to go out and find the photo copy shop around university of laos far from there around 3-5mins driving) Fill up the form and passed directly to the counter then you will get a bill to pay at ICBC BANK(phonesaad)$30 with the fee 10.000kip (even it is long queue there but for payment is very fast , so try to inform them) u will get ur visa in 4 working days :)
Hong kong and china embassy is located in the same place
Only 8.30-11.30 a.m
Good luck everyone :)

does the flight and hotel booking have to be confirm or can you just summit a possible trip plan? Thanks