The remit of CWM is to promote international contacts between national and regional organisations for women and mathematics and to undertake other related activities, including responsibilty for this website. CWM was approved by the IMU Executive Committee in March 2015. Its first meeting took place in Cortona, Italy in September 2015; a detailed report can be found here. The second meeting was in Berlin, July 2016. The central goal from now until ICM Rio 2018 is to help to establish networks of women mathematicians especially in Asia, Latin America and Africa.