Her Royal Highness Princess Maha Chakri Sirindhorn soon began to encourage coastal fishermen in Narathiwat province to fuel their small boats with biodiesel from the Pikul Thong Development and Study Center. Initially, participants were fishermen from Ban Pula Kapeh village of Kaluwo Nua subdistrict and Ban Chumchon Tha Rua 2000 village of Bang Nak subdistrict, both in Mueang Narathiwat district. And now the project is attracting more and more fishermen from nearby areas.