The disposal of pig farm waste is becoming a major environmental challenge across Southeast Asia. To help find the best solution to this problem, this study has looked at the situation in Thailand where the government is promoting the use of biogas conversion plants as a way forward. The study finds that, as it is currently implemented, biogas conversion actually provides fewer benefits than many of the other waste management solutions that are being used. However the report also finds that, if the necessary investment was made to allow farmers to use biogas to produce electricity and sell this to the national grid, then biogas conversion would become a good option.