Mexico’s Chamber of Deputies has approved a measure that would nationalize lithium production in the country.

That move came on Monday, one day after a major constitutional reform concerning energy policy failed. Mexico’s President Andres Manuel Lopez Obrador called that legislative loss a “betrayal” of the nation, and then urged legislators to quickly pass the lithium reform. The country’s senate still needs to approve the measure.

Sonora’s Gov. Alfonso Durazo praised the move, saying on Twitter that it would turn his state into a “lever for energy development.”

The state is home to a major lithium deposit, concessions for which are currently controlled by the Chinese firm Ganfeng. On Tuesday, President Lopez Obrador said those concessions are going to be reviewed.