Negative emissions technologies (NETs) are the new frontier of the European environmental policy. LONETA aims at enhancing the administrative, industrial and technical framework conditions for the development of new cross-border green market niches in the programme area, by fostering early-stage and pilot investments on NETs in Puglia, Albania and Montenegro. The main result is the creation of a collaborative space in which stakeholders, companies and authorities from the involved countries can collaborate on NETs themes, thanks to the mutual learning process of this enlarged network. A Memorandum of Understanding for the NETs in the South Adriatic area will be drawn up, and a LONETA Negative Emissions Laboratory will be carried out, including B2B meetings and workshops.