• 22/10/2005

" Life as an artist - from Architecure to art - a personal journey"
at Shek - O Art Studio Hong Kong to members of Hong Kong Institute of Architects.

• 25/09/06

"RAY YIP: Life of an Artist and Architect"
, to members of Rotary Club of Kowloon, Hong Kong

• 05/10/2006

"RAY YIP: Life of an Artist and Architect",
to members of Rotary Club of Kowloon, Hong Kong

• 06/10/2006

"RAY YIP: Life of an Artist and Architect",
to members of Rotary Club of Admiralt, Hong Kong