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BERLIN (Reuters) - Concerns about a global trade war dominated this week’s meeting of finance ministers from the G20 largest industrialised nations in Argentina, German Finance Minister Olaf Scholz told reporters travelling home with him.

Scholz said a large majority of participants expressed concerns about a further escalation in the wake of planned U.S. tariffs on steel and aluminium, and underscored the importance of continuing to warn against “protectionist tendencies”.

“It was a success that there were discussions about it,” Scholz said, citing talks with the United States. “That at least marks some progress.”

German Economy Minister Peter Altmaier also struck an upbeat tone after meetings with U.S. officials including Commerce Secretary Wilbur Ross and Trade Representative Robert Lighthizer.

“On the way home from Washington. Good discussions with Ross, Lighthizer, senators, companies. Agreement is possible if we want,” he wrote on Twitter.