There have been signs that the two-and-a-half month protest movement is starting to lose some momentum and unions will be hoping for a mass turnout on the 11th day of action since January.
All sides in the standoff are awaiting the verdict on April 14 over the reform from France's Constitutional Council, which has the power to strike out some or even all of the legislation.
Macron, currently out of the country on a visit to China, is facing the biggest challenge of his second term over his flagship pension overhaul, which includes hiking the minimum retirement age from 62 to 64.
Protests descended into violent unrest after Prime Minister Elisabeth Borne on March 16 invoked a controversial executive power to ram the bill through parliament without a vote.
Unions said a meeting with Borne on Wednesday made no progress after she refused to discuss going back on the minimum retirement age of 64.
"It's clearly a failure when the prime minister won't even allow a way into that discussion," said Cyril Chabanier, speaking on behalf of the country's eight main unions after they walked out barely an hour into the talks.
It was the first such gathering between the two sides since the government presented the contentious pensions bill in January.
Despite refusing to budge on the issue, Borne said she would not move forward with any other labour topics "without social partners".
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