Colombian mining and energy planning unit Unidad de Planeación Minero Energética (UPME) has reopened its UPME STR 03-2018 tender, after declaring it void in October 2018. The tender was issued in March 2018 to select an investor and an auditor for the design, procurement of supplies, construction, and operation and maintenance of the 110 kV La Marina substation (operating initially at 66 kV) and associated transmission lines in the city of Cartagena, Bolívar.

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