If you've tried searching you'll quickly discover that there's very little information available on surfing in Burma. What is known, is that Burma receives good swell and is notoriously difficult logistically due to travel restrictions imposed on foreigners, making it one of the last unexplored frontiers of surfing. The only real info I could find was a Surfer Journal's article "On the Edge of Burma" published in 2001 documenting surfers Randy Rarick and Tor Johnson's search for waves in northern Burma. Considering recent developments and if you're interested in this fascinating country, it's well worth a read.