How to go Hong Kong Convention and Exibition Centre from BP Internatonal Hotel?

Take Tsuen Wan Line at Jordan Station, get off at Admiralty Station. Then transfer to Island Line to Wan Chai Station, Exit A1. The duration is about 20 mins. And the ticket fare is 9.7 HKD per person. After arriving, walk northeast around 300 yards to find the destination.

Thanks for your direction. Can i go by bus or taxi? How much does it cost?

Walk north along Canton Road for about 600 yards to Ferry Street Station. Then, take bus line 914 to Fleming Road, Wan Chai Station. Upon arrival, walk north to Convention & Exhibition Center. It costs around HKD 9.3. If by taxi, the fare may be around HKD 60. :)