But other prominent Brexit-backing ministers were holding their fire as all eyes turned on the outcome of May's first meaningful engagement with her top domestic rival in years.
The monthly data from payrolls firm ADP comes two days before a more closely watched government report on employment.
This evening, MPs are debating legislation which would require Mrs May to seek an extension to Article 50 and give the Commons the power to approve or amend whatever was agreed.
Wales minister and whip Nigel Adams said the Prime Minister had made a "grave error" by reaching out to the Labour leader in the hope of finding a consensus solution to Brexit ahead of a crunch European Union summit on April 10.
The announcement enraged the Conservative Party who oppose any move that would see the government back a much softer Brexit that could lead to membership in the Customs Union, inclusion in the Single Market, or even a second Brexit referendum.
May's pivot infuriated pro-Brexit Conservatives, who were seeking ways to stymie her plans. But most lawmakers are opposed to leaving without a deal.
Sterling won a boost after Conservative leader May declared late Tuesday that she would look for another Brexit delay and softened her position to try and avert a messy no-deal divorce from the European Union next week. The Democratic Unionist Party, the small Northern Irish party whose support she needs to govern, said it was wary of making any deal with a man whom many in May's party have demonised.
Her divorce deal with the other 27 European Union nations has been rejected three times by parliament and patience with London is wearing thin in Brussels as the 46-year partnership nears a potentially chaotic end.
But it has been thrice rejected by Parliament amid opposition from lawmakers on both sides of the Brexit divide.
"The first executive of industrial manufacturer Siemens U.K. implored British lawmakers to combine about a compromise Brexit deal, stating the country's political chaos was creating the U.K. a" laughing stock".
May has less than fourteen days to bridge the split that divides those in her authorities who want to sever links and people who want to maintain the ties which have bound Britain to the bloc for nearly 50 years. Labour's business secretary suggested May's offer was long overdue, but that the opposition would enter talks with an open mind. Two ministers, Welsh minister Nigel Adams and DExEU minister Chris Heaton-Harris, have already quit at the Prime Minister's decision to hold talks with Corbyn.
Stockpiling has become increasingly prevalent over the past few months as Britain's exit looms - originally scheduled for March 29 but as delayed at least to April 12. And we must prevent the calamity of a Corbyn government.
Anti-Brexit demonstrators near College Green at the Houses of Parliament in London.
The French president said that credible justifications for an Article 50 extension for the United Kingdom could include an election, second referendum or alternative proposals for the future relationship, such as a customs union.
European Council President Donald Tusk said it was not certain how European leaders would view her request.