Ratsada is a district in the northeastern part of Trang province, Thailand. The minor district Ratsada was established on 1 April 1991 by splittin…Ratsada is a district in the northeastern part of Trang province, Thailand. The minor district Ratsada was established on 1 April 1991 by splitting off five tambons from Huai Yot district. It was upgraded to a full district on 5 December 1996.