The company will work on a pipeline to take LNG to the Porto de Sergipe 1 plant.
The Mexican subsidiary of US firm Sempra Energy has got the go-ahead to acquire the remaining 50% in Ductos y Energéticos del Norte from federal oil company Pemex.
Guatemala is offering to extend electricity import contracts with Mexico to supply the states of Chiapas and Oaxaca, where transmission infrastructure and wind farms were damaged by the September 7.
Electricity rates are expected to rise with the benefits of the government's new energy tender system not expected to help consumers until after 2020.
The investment by Jiuquan Iron and Steel Company will boost production capacity at the Alpart alumina plant, and includes a new power plant and port expansion.
The public has until November 30 to comment on a draft decree authorizing an Ecopetrol subsidiary to generate, transport and distribute electricity.