The article does not describe the monk as 'alive' despite the misleading title they have given it. His body is simply imperishable, it is a mummification of sorts according to the article, yet his soft tissue has remained, seemingly as has the water content of the body. Seemingly cartilage has not however, and his nose appears to be well gone.
Upon further examination it would appear that those at the temple decided to keep him buried in salt for a period, his removal from the salt appears to be evident in the photo here:
Although obviously, the white parts cannot be verified to any extent as being salt... But it would seem likely.
All the same the article is fascinating. Thanks for posting it Chris, how incredible.