The proposal is for setting up an MSCA-ITN network. It has been submitted in 2016 and has obtained a total score of 89.60/100. More specifically, the proposal scored 4.6/5 in criterion 1 (Excellence), 4.6/5 in criterion 2 (Impact) and 4.0/5 in criterion 3 (Quality and Efficiency of the Implementation). With this ANR proposal, we ask for the financial support for meetings with the members of the network to better define the implementation part of the project and improve the other two parts. We plan to re-submit an improved project in the 2017 call. Note that, lacking specific funds, we have set up the network all in virtual meetings. Being able to meet the network member explicitly for preparing the network should significantly improve the proposal and, hopefully, make it be approved. The project ACO (Astro-Chemical Origin) has two main objectives: 1) to understand the path that the original clump of cold and diffuse matter ?followed to become the Solar System, by following up left over chemical traces of the process that ultimately led to life on Earth; 2) to train a new generation of researchers able to tackle this highly interdisciplinary problem, and with a wide-range of transferable skills, including the ability to communicate Science to a large audience. This will be obtained by setting up: (i) a coordinated network of PhD research projects which will be carried out by 16 ESRs under the supervision of members of the ACO Partners (two 18-months fellowships will be provided by an Associated Partner); (ii) specialised courses at the host institutions and network schools with specialised interdisciplinary and transferable skills courses; (iii) international schools open to the scientific community; (iv) activities focused on the public dissemination. In order to achieve the ACO objectives, the proposed network is constituted by ten Beneficiaries (listed in the Table of the previous page), of which two are from the non-academic sector, plus seven Associated Partners, of which six are from the non-academic sector. Each Partner will provide a complementary expertise indispensable to achieve of the above mentioned ACO objectives. This consortium covers all the expertise needed to achieve the scientific and training goals of ACO: we have complementary expertise in instrumentation, observations, theoretical chemistry and physics, computational statistics, astrochemical modelling , and experimental chemistry. In addition we also have training on informatics, information technologies (IT), intellectual property (IP), scientific presentation, events organization and management, in order to provide a complete set of wide-transferable training.