SMX (Security Matters) plc and CARTIF, a Spanish non-profit technology research centre, have entered into a non-binding letter of intent to evaluate a potential collaboration focused on circular economy innovation in Spain and Europe. The initiative aims to assess the integration of SMX's molecular "physical-to-digital" marking technology into CARTIF's sustainability and Industry 5.0 projects, including applications in strategic materials such as construction components, automotive plastics, and critical raw materials. The proposed collaboration, subject to the execution of definitive agreements, includes a 120-day evaluation period and may support local companies and government departments in meeting enhanced ESG disclosure and recycled-content targets.