Coordinated Auction Office in South East Europe - SEE CAO, was established in 2014 by its shareholders - TSOs from the region of South East Europe: HOPS, NOSBiH, CGES, OST, KOSTT, IPTO, TEIAS, MEPSO with objective to perform explicit allocation of cross-border transmission capacity through NTC based Auction Processes in both directions between Control Areas of the Participating TSOs. SEE CAO is performing yearly, monthly and daily auctions on 10 borders: HR - BA; BA - ME; ME - AL; AL - GR; GR - TR; GR - MK; IT - ME; AL - XK; XK - ME; XK - MK with more than 130 registered Auction Participants.