Shares of embattled Chinese telecommunications giant ZTE plunged more than 40 percent Wednesday, its first day of trading after agreeing to pay a $1 billion fine to the United States for violating trade sanctions.

ZTE nearly went under after the Trump administration imposed a seven-year ban on the company from buying crucial software and hardware components for its smartphones and other devices from U.S. companies. The ban was punishment for ZTE putting U.S.-built components in its products and selling those goods to countries under a U.S. trade embargo, including Iran and North Korea.

The sanctions were lifted after ZTE agreed to pay a $1 billion penalty, put another $400 million in escrow, and replace its entire management and board by the middle of July.

The company is also required to hire a new compliance team selected by the U.S. Commerce Department for a 10-year term.

A bipartisan group of U.S. lawmakers have introduced legislation to reimpose the penalties on ZTE, saying the firm posed a threat to U.S. national security through intelligence gathering on its devices.
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