European stocks were trading higher on Monday at midday, as USA rate hike fears ebbed and investors waited for the SPD vote to join a German coalition government with Angela Merkel.
The agreement still needs approval from the Social Democrats' membership to take effect. The CDU conference in Berlin follows Merkel's announcement of her picks for a new, younger cabinet meant to rejuvenate the party.
Merkel acknowledged the unease among party supporters, but said it would have been wrong to let coalition talks collapse over the distribution of ministerial posts, insisting that as the strongest force in German politics her party had to live up to its responsibility to form a government.
The SPD, whose youth wing steadfastly rejects the idea of a coalition with Merkel, is due to vote on the coalition proposal on March 4.
Mr Spahn has made it clear he wants Mrs Merkel's job, he has been the deputy finance minister since 2015 and was previously the CDU's health expert.
Mr Spahn's new role of health minister of the CDU has been regarded as a sign of the Chancellor's weakness after she only won a reduced vote in September's elections.
"I had the not entirely easy task. of ensuring that this personnel roster is oriented toward the future, that it contains a good mixture of experience and new faces", Merkel told reporters.
Mrs Merkel said: "Jens Spahn is not the only one to make critical comments".
Merkel, who was left without a majority in September elections, paid a high price to coax the reluctant SPD back into another loveless "grand coalition", the alliance which has ruled Germany for eight of her 12 years in power.