Thailand is important an agriculture-based country, of which 47% of the total area are engaged in the agricultural sector. Main crops are rice, rubber, cassava, sugarcane, maize and oil palm. Livestock and poultry are also important parts of farming (OAE, 2013). A large proportion of population derives their livelihood and income from agriculture sector. With a favorable climate and soil conditions permit the cultivation of a wide range of crops not only tropical varieties but also many originating in semitropical and temperate zones, the country has become the world’s leader of rice and Para rubber exporters (The Customs Department, 2015). Meanwhile, the agriculture sector of Thailand has been transforming from a labor farming activity into a more commercial food industry for both export and domestic consumption. This transition is evident from the fact that only 37% of the country’s labor force are presently employed in agriculture (OAE, 2012), compared to about 70% in 1980 (ODI, 2011).