Dear Madam/Sir, I would like to inform you on behalf of my consortium of the amendment of the above-mentioned project, for the following reason(s): Unfortunately, the massive disruption of the international travel due to COVID-19 and strict restrictions on the international travel imposed by the countries and organizations involved have essentially affected the implementation of the DiSeTCom project in terms of secondments. This had resulted in the suspending of the project for 249 days and reshuffling of the exchange schedule, which has become hardly bearable in terms of the manpower of the project partners. In order to fulfill the project obligations in terms of the researchers exchange we propose to boost the project manpower by adding the following beneficiaries: University of Exeter, UK (UNEXE), PIC 999864555 (academic organization), MaxLLG Ltd, UK (MAXLLG), PIC 893920961 (SME) NARRANDO SRL, IT (NARRANDO), PIC 917345685 (SME) Involving two SMEs we allow us to enhance the exploitation potential of the DiSetCom, while an extensive expertise of UNEXE in the electromagnetic theory of 2D materials and heterostructures is to complement the INPBSU and ToV expertise. The organizations above have well-established research collaboration with DiSetCom teams, they have been involved in RISE projects earlier and their research facilities are complementary with those currently available for the consortium and will allow them to effectively contribute to the implementation of the WP2, WP3 and WP5. The implementation of the amendment involves changes in the Annex 1 (Parts A and B) hereby updated accordingly. By this letter we request an amendment for adding UNEXE, MAXLLG and NARRANDO to the consortium indicatively from 01.11.2021. Modification of Annex 1 and Annex 2 Minor changes in the Gantt chart were introduced: +2 PM to UEF (FI), - 4 PM for TERAVIL (LT), -1 PM for UNISA (IT),+ 1PM to FTMC (5LT), - 2 PM for UNITOV (IT), - 10 for Nuclear Problems of Belarussian State University. As for the newcomers: 17 PM go to UNEXE (UK), 17 PM go to MaxLLG Ltd (UK) and 12 PM go to NARRANDO Srl (IT). There is no change to the total EU contribution. Yours faithfully Yuri Svirko Project coordinator

Graphene 3D project proposes highly innovative pathway for the development of optimized, multifunctional graphene-based polymer composites and structures with desired properties for specific applications, based on combination of three main approaches: (i) controlled processing and material’s characterization; (ii) robust nanocomposite design; and (iii) modeling/optimization of nanocomposite cellular structures with predefined properties. Graphene 3D methodology will result in two major outcomes: Multifunctional nanocomposite material for 3D printing application, as well as Optimized and experimentally validated, 3D printed nanocomposite cellular structures with tunable electromagnetic, thermal and mechanical properties. To reach the goal, the proposal will pursue the following main objectives: (1) to develop an effective processing technique for graphene-based polymer nanocomposite; (2) to correlate processing variables with final micro and nanostructure features; (3) to obtain highly improved nanocomposite properties (electrical, electromagnetic, mechanical, thermal); (4) to propose robust design tool for optimizing process-structure-property-performance parameters, resulting in optimized nanocomposite formulation for 3D printing application; (5) to design nanocomposite-based cellular structures with optimum configuration (structure, geometry) and tunable multifunctional characteristics in view of predefined performances; (6) to prove the design concept by fabrication and experimental validation of both nanocomposite material and 3D printed cellular structures that achieve unique properties. Project research & innovation ideas will bring up the research results from TRL 1-2 to TRL 3-4, with potential for application specified towards high power electronics. Graphene 3D will create a Joint Laboratory on graphene-polymer research for knowledge share in a multidisciplinary international/inter-sectoral consortium having long-term implication.