This document is the first report on the HPC-Europa3 Transnational Access activity. It covers the first reporting period (Months 1-18, i.e. 1 May 2017 – 31 October 2018). In this report, we provide statistics relating to the number of applications received, users who were given access, and computing time used. There is also information about the outreach and dissemination activities, selection procedure, and the first HPC-Europa3 users' group meeting, the Transnational Access Meeting (TAM 2018).