BERLIN, May 31 (Reuters) - Deputy U.S. Treasury

Secretary Wally Adeyemo on Friday said Washington and the

European Union must deliver a message to China that its firms

face a choice between doing business with U.S. and EU economies

or equipping Russia with dual-use goods.

The warning to Chinese firms comes as President Joe Biden's

administration has stepped up messaging about China's support

for Russia and issued an executive order in December that

threatened sanctions on financial institutions helping Moscow

skirt Western sanctions.

(Reporting by Daphne Psaledakis, Matthias Williams and

Christian Kraemer, editing by Thomas Seythal)