T-MOSAiC team had a very busy week during the ASSW2019. Nine presentations were performed by the chairs and the secretariat and very good positive feedbacks and suggestions were received by the Arctic community. During the ASSW2019 a T-MOSAiC open session took place with scientific presentations followed by interesting discussions. The highlight of the week were the presentation of the T-MOSAiC implementation plan that is focused in Action Groups leaded by international scientific experts. News about this plan will soon be available on the website. The T-MOSAiC is very thankful for all presenters in the open and close meetings of the program.