WASHINGTON (TNND) — U.S. President-elect Donald Trump had a conversation over the phone with Chinese leader Xi Jinping ahead of Inauguration Day on Monday.

Trump posted about the phone call on his social media platform, TruthSocial, noting that their discussion was a "good" one.

"The call was a very good one for both China and the U.S.A.," Trump's announcement read in part.

The incoming president shared that he expects to "solve many problems" together with Xi.

Specifics about the topics they talked about were not provided, but Trump said TikTok, fentanyl, balancing trade and other subjects were discussed.

"President Xi and I will do everything possible to make the World more peaceful and safe," Trump wrote.

In a statement, China’s Foreign Ministry confirmed that Xi and Trump spoke on the phone late Friday.

The U.S.-China relationship is expected to be one of the main focuses of Trump’s second term, with tensions between the two superpowers looming in the areas of trade, technology and the self-ruled island of Taiwan, among other things.

Trump has threatened to slap tariffs of 60% on all Chinese imports into the U.S. But he has also in the past praised his relationship with Xi and has suggested China could help mediate international crises such as the war in Ukraine.

Xi will not attend Trump’s inauguration. China will be represented at the event by Vice President Han Zheng.

Trump said in a December interview on “Meet the Press” that he had been communicating with Xi since he won the election. Trump in the interview said he has "a very good relationship” with China’s leader. He said they did had not discussed Taiwan but discussed other issues.

Editor's Note: The Associated Press contributed to this report.