Greece’s Okeanis Eco Tankers has secured period cover for two of its suezmax newbuildings from an unnamed national oil company.

The Alafouzos family-controlled shipowner said it had secured three-year charters for the 157,971-dwt Nissos Sifnos and Nissos Sikinos (both built 2020).

The ships are expected to generate cumulative Ebitda of $22.6m