Keren Su, the founder of China Span, is a professional photographer, an artist painter, and an explorer. Being a native born Chinese, Keren is well known in China for his adventures, being the first person to ride a single speed bicycle all the way across China, the first person to motor bike completely around China and the first person to raft with a self-made innertube raft down the wild Tarim River, the world’s longest interior river. Keren first came to the United States at the end of 1987 and currently lives in the Seattle area where he devotes his time to commercial photography, painting and organizing his special tours. In his many trips to the remote mountainous areas of China, Keren has been able to capture many never-before-seen pictures. His photo books of the Giant Panda and Siberian Tiger have been published in the USA, Japan and China. His photos are used worldwide, including National Geographic Traveler, Smithsonian, Forbes Magazine, etc.