BERLIN (Reuters) - The head of Germany’s public sector union said he was upbeat about reaching a compromise with employers in a third round of wage talks due to begin on Sunday, after a week of strikes by more than 150,000 union members.

FILE PHOTO: Members of German public sector workers union Verdi stage a strike at the airport in demand for higher wages in Frankfurt, Germany April 10, 2018. Signs read "Today a warning strike" and "We are worth it". REUTERS/Kai Pfaffenbach

Verdi leader Frank Bsirske told German newspaper Handelsblatt the two sides had been far apart in the previous two rounds of wage talks, but he was more optimistic going into the third round.

“Given the signals that I’m now getting, it should be possible to achieve a sustainable compromise,” Bsirske told Handelsblatt.

Verdi, with 2.3 million members, and the dbb assocation of civil servants, which represents 344,000 public servants, have been pressing for a pay raise of 6 percent for their next 12-month contract, or least 200 euros more a month.

Interior Minister Horst Seehofer, the federal government’s top negotiator, on Saturday said he would press for “reasonable results” in the next round of pay talks, but dismissed the union pay rise demand as “too high for one year.”

Ulrich Silberbach, head of the dbb and the lead negotiator for the labour side, said the unions were ready to negotiate, but it was up to Seehofer to present a counter-offer. “After the long negotiations on forming a government, we can’t afford to also have long wage conflicts,” he said in a statement.

Verdi’s Bsirske said surging German tax revenues meant the pay deal should definitely be higher than one struck two years ago, when workers got an initial 2.4 percent increase,

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