COOMET is the regional metrology organisation (RMO) of eastern European and Asian countries; other countries may join COOMET as Associated members. The paper gives a short review of the history of COOMET and a description of its tasks, its members and its organisational structure. It deals with the project activities of COOMET. A focus of activities is related to the efforts of COOMET NMIs for the realization of the CIPM MRA. The presentation ends with a short view on the perspective and the strategy for the future of our RMO.