In 1990, disaster relief activities were carried out for Cambodian, Lao and Vietnamese refugees in six refugee camps along the Thai border. These are: Khao I Alk Camp and Sa Kaeo Camp in Prachin Buri Province, Phraya Kamphucha Camp in Chanthaburi province, Mai Rut camp in Trat province, Kap Choeng camp in Surin province and Phanat Nikhom camp in Chonburi province. The program provided knowledge, advice, family planning services. health examination, skill development, as well as provision of necessary consumer goods and other economic services. As for Thai people who were experiencing problems, appropriate assistance was provided with regard to professional skills useful for the future. A Mechai mobile child development center was established for child development, as well as an Anti-Rape Center and Baan Than Nam Jai Project to help take care of orphans with HIV positive mothers.
From 2005-2012 PDA embarked on one of the most comprehensive programs of any NGO after the 2005 tsunami hit Thailand’s Andaman coast. The ‘New Life after the Tsunami’ program could significantly improve the livelihoods of villagers in the more than a hundred communities along the Andaman coast of Krabi, Phangnga, Trang and Phuket, and tenthousands of villagers have benefited from PDA programs, i.e. village development and boat banks, youth camps, women economic empowerment, agri/aquaculture, cash for work, scholarships, school lunches, water and health, reforestation, coastal management and environmental protection.