Chinese President Xi Jinping and members of Chinese delegation attend a working dinner with U.S. President Donald Trump after the G20 leaders summit in Buenos Aires, Argentina December 1, 2018.

Chinese representatives met with the World Trade Organization on Monday to begin the process of legally challenging United States tariffs on China's exports, Reuters reported, citing a transcript of the meeting's discussion.

"This is a blatant breach of the United States' obligations under the WTO agreements and is posing a systemic challenge to the multilateral trading system," a Chinese representative said in the meeting. "If the United States were free to continue infringing these principles without consequences, the future viability of this organization is in dire peril."