The purpose of the project is to capture and burn biogas from the landfill site Puente Gallego, Rosario, Argentina. This project will effect a reduction in Greenhouse Gas emissions through the combustion of methane contained in the biogas exploited from the landfill site. The total amount of CO2 emissions avoided over a 10 year period is estimated at about 0,6 million tons. ASJA Ambiente Italia S.p.A.and IMPSA are companies working together as UTE Asja Ambiente Italia SpA – Impsa, a 50/50 contractual joint venture. UTE Asja Ambiente Italia SpA - Impsa won the rights to exploit the biogas produced at the Puente Gallego landfill site through a competitive bid organized by Municipalidad de Rosario, a public entity. UTE Asja Ambiente Italia SpA - Impsa and Municipalidad de Rosario signed a concession contract in June 2005 in which Municipalidad de Rosario granted the rights to use all the biogas produced at the Puente Gallego landfill for a 10-year period. Asja Ambiente Italia SpA and TySA SA, an enterprise of the Impsa Group, have constituted another enterprise, Aria.biz SA, that will be responsible, throughout the duration of the contract, for the construction and management of the landfill gas extraction and flaring systems, including any required investment and Municipalidad de Rosario will continue to be the owner and to manage the landfill. UTE Asja Ambiente Italia SpA - Impsa will capture the biogas produced at the Puente Gallego landfill by setting up and operating an extraction plant comprised of a network of wells and connected pipes, running into blowers and then into torches in order to flare it. As current laws in Argentina do not control the LFG combustion, this project will contribute to the sustainable development of the area immediately surrounding the landfill, Santa Fe Province and Argentina as a whole:

       • Abatement of the CH4 emissions from the landfill;              • The area immediately surrounding the landfill will get an immediate benefit from thelimination of odorous gas emissions coming from the landfill. Substantial reduction or              elimination of these gases will mitigate the health problems that these gases can cause to the              local population and will certainly have a positive impact on the development potential of              the area surrounding the landfill;

• Safe and effective extraction of the biogas produced by the landfill will also significantly reduce the risk of fire and explosion at the landfill; • The project will have a small but positive impact on local economy, employing local workers and using local materials whenever possible; • The Municipalidad de Rosario will benefit from technology and know-how transfer; • Additional fundings will be received by Municipalidad de Rosario from the sale of carbon credits..