The South-East Asian Solid Waste Improvement Project (SEALSWIP) was undertaken from 1997 -2001, working with six cities (Hat Yai and Udon Thani in Thailand; Iloilo and Bacolod in the Philippines; and Rantepao and Makale, Tana Toraja in Indonesia). In each city, a stakeholder committee of local government, private sector and NGO representatives was convened to identify priorities and come up with action plans to improve municipal waste management. Sustainable Cities supported the stakeholder groups with technical and project management expertise and provided funding for demonstration projects related to municipal solid waste management.
SEALSWIP was selected as an Ambassador project at the Stockholm Awards in 2002 and as one of ten projects to have site visits for a Global Development Award. Bacolod and Udon Thani were recognized by their national governments by the winning of the Clean and Green City Award and Lovely and Beautiful City Award respectively. The project influenced the policy and regulations for solid waste management in all three countries and formalized the activities of scavengers so that they were recognized as legitimate workers in the solid waste field, which has had an enormous impact on their self-respect and their interactions with the community at large. In the Philippines the Sustainable Cities multi-stakeholder model became incorporated under the regulations as formal Solid Waste Management Boards; A facility for composting water buffalo manure was built in Tana Toraja; Support and training was provided for the new landfill site in Udon Thani; siting for a new landfill in Tana Toraja was completed; training for treating hazardous waste at the incinerator in Hat Yai was provided; Community and school recycling education projects in all municipalities were introduced; A cooperative for junkers (recycling depot operators) was set up in Bacolod; in Bacolod, a school on the dump site and a feeding program for children of waste pickers was set up, and several skills training programs (sewing, electrical repair), micro-enterprises (raising pigs, market garden) and a series of health clinics for waste-pickers were established; a community "waste bank" for recyclables in Udon Thani was set up; a manure composting facility was set up in Indonesia that is now turning a profit and became a model for private operators and other communities; Others projects continued to be supported by the local government (e.g. school recycling programs, health clinics) and the NGOs formed during the project after the end of the project.