Spain's interim Prime Minister Pedro Sánchez has been backed by Catalonia's largest separatist party to form a coalition government, Eurasia Diary reports citing BBC.
Esquerra Republicana de Catalunya (ERC) MPs are to abstain in a confidence vote next week, paving the way for a new term for Mr Sánchez.
The ERC said a Mr Sanchez-led government would hold talks on Catalonia's future.
Spain has been racked by political uncertainty for almost a year.
The country saw two inconclusive elections last year coupled with Catalonia's on-going drive for independence.
In November's election, Mr Sánchez's Socialist Party (PSOE) won the most seats, but fell short of the 176 required for a majority in parliament.
The Socialist Party has struck a deal to form a coalition government with far-left party Podemos. Yet the Socialist Party and Podemos still don't have a majority in parliament, meaning they need the support of other smaller parties, including the ERC.
With the ERC's 13 seats and a possible combination of support from other leftist or Basque parties, Prime Minister Sánchez could continue in office at the head of a coalition.
That outcome appears more likely after the ERC's national committee said on Thursday its MPs would abstain in confidence votes expected over the weekend and next Tuesday.
Mr Sánchez appears set to lose the first vote, in which he requires an absolute majority. But in the second vote he just needs more votes in favour than against and should now have them if the ERC abstains.