Burma was the world's second-largest producer of illicit opium in 2002. Burma also has been the primary source of amphetamine-type stimulants in Asia, producing hundreds of millions of tablets annually. 

http://www.state.gov/r/pa/ei/bgn/19147.htm


It is further estimated that as many as 50 methamphetamine laboratories located in Burma will produce from 600 to 700 million tablets for the Thai market in 2001. Government sources estimate that 600 million tablets were smuggled into Thailand during 2000. Between January and August 2000, authorities seized 4,752 kilograms of methamphetamine tablets.


http://www.usdoj.gov/dea/pubs/intel/01025/01025.html