I am sure they would tell you where it was being held or does it really say February 17th and no location. If the location they have given is in Canada then as you are from Vancouver I guess you would not have to fly.
If they want you to attend in Hong Kong that does not mean you have to fly, there are a few more options. This time of year you could probably complete the journey overland, would need to find a guide to take you through the Arctic but once in Russia it would be quite an adventure with a mix of 4x4s and probably some eye opening train journeys through some spectacular countryside. Once in China I expect a bus or train to Hong Kong would be easy to organize. You could also try to make the journey on the water, some container ships offer spaces for passengers. Personally I think overland would be the most interesting although probably a bit dangerous at times but just think of the stories you would have to tell the interviewers.
Whatever way you chose I wish you good luck with your voyage and safe travels.