What is PAN ASIA?

Pan Asia 是指泛亞區，即是整個亞洲區域

Pan-asia = 泛亞地區

Do you mean:

1. Pan-Asianism (idea / movement)
Pan-Asianism is an ideology or a movement that Asian nations unite and solidify to be free.
( http://en.wikipedia.org/wiki/Pan-Asianism )

2. Pan Asia Electronics Co., Ltd
"Pan-Asia Electronics Co. Ltd., established in 1989, is a cable assembly company with head office in Hong Kong. We have run our business in Hong Kong for more than 16 years, with an expansion of our business overseas in areas like US, Canada, North Europe etc., and managed our factory in China over 12 years. We possess an engineering team of over 10 engineers stationed in Hong Kong and PRC. "
( http://www.pan-asiahk.com/ )

3. Pan-Asia restaurant (Asian food)
"As Jackson, Mississippi’s leading Asian-fusion restaurant, Pan-Asia features a unique menu of fusion cuisine with the freshest ingredients available blending authentic flavors from regions of Thailand, Japan, India, Vietnam, China and more."

( http://www.pan-asia.com/ )

Check out more websites about the term 'Pan-asia' at the following google search address, or search 'pan asia' in different search engines:

http://www.google.com.hk/search?rlz=1C1GGLS_zh-TWHK318HK319&sourceid=chrome&ie=UTF-8&q=pan+asia

Hope this helps!