Crnogorski elektroprenosni sistem AD (CGES) is the Montenegrin transmission system operator and joint promoter of the Italy-Montenegro HVDC interconnector (MONITA / MON.ITA), partnered with Terna S.p.A. on the Italian side. CGES's role on the project covers grid-connection responsibility for the Montenegrin half of the link — owning and operating the Lastva Grbaljska converter station and the associated 400 kV substation interface — together with project-management coordination for works in Montenegrin territory and technical advisory input to the binational design and engineering programmes. The partnership was formalised through a Project Coordination Agreement (PCA) signed in January 2011 (under the strategic partnership agreement Terna signed with CGES and the State of Montenegro on 23 November 2010) and renegotiated in 2018 to formalise the two-phase build (Pole 1 commissioned 28 December 2019, Pole 2 development separately scoped under PdS code 401-P). Operation of the link in service was further codified by an Operation Agreement signed in May 2019, under which Terna operates the link in cooperation with CGES. Terna is also CGES's second-largest shareholder, reinforcing the structural alignment between the two TSOs. CGES remains responsible for the Montenegrin-side regulatory, permitting and works-coordination workstreams for the planned Pole 2 expansion to 1,200 MW bipolar capacity. Terna's March 2025 ARERA report explicitly references receiving updated Trans-Balkan Corridor status information from CGES (alongside Serbia's EMS) when revising the Pole 2 timing analysis.