The senate approved 41 of the 44 bills on March 30 and was expected to pass the remaining three this week.
However, the Podemos party is insisting on more debate over 37 that have been approved as it wishes to annul an opening paragraph in each of them.
"Senator Santos Ramirez has asked for more time to consult the executive [branch] over this so we hope we'll be able to make a decision and conclude this process next Tuesday," senator Oscar Ortiz said in the report.
The contracts were signed under President Evo Morales' nationalization program.
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