President-elect Donald Trump on Friday said he spoke with Chinese President Xi Jinping and vowed they would work together to solve problems confronting both nations.

“The call was a very good one for both China and the U.S.A.,” Mr. Trump posted on Truth Social. “It is my expectation that we will solve many problems together, and starting immediately. We discussed balancing Trade, Fentanyl, TikTok and many other subjects. President Xi and I will do everything possible to make the World more peaceful and safe!”

Earlier Friday, Chinese state media reported on the phone call without saying what was discussed.

During his first administration, Mr. Trump engaged in a trade war with China, slapping tariffs on imports from the world’s second-largest economy. He has threatened more severe tariffs this time while accusing Beijing of unfair trade practices and contributing to America’s fentanyl crisis. The tariffs could reach 10% to 60% on goods from China.

Mr. Trump will also have to deal with the looming TikTok ban. The Biden administration announced Thursday it won’t enforce shutting down the social media app in the U.S., leaving its fate in the hands of Mr. Trump.

The ban, approved by Congress last year and signed into law by President Biden, requires TikTok’s China-based parent company to divest the company by Sunday, a day before Mr. Trump takes office.

Mr. Trump once called for a ban but now is leaning toward keeping it available in the U.S.

The Trump-Xi talk came one day after Beijing slammed Secretary of State nominee Marco Rubio for saying at his confirmation hearing that China is “the most … dangerous near-peer adversary” the U.S. has ever faced.

Beijing ripped the comment as “unwarranted attacks” and “smear campaigns.”

Mr. Trump had invited Mr. Xi to his inauguration, but the Chinese Foreign Ministry said he would skip it. Instead, Vice President Han Zheng will attend the ceremony as Mr. Xi’s special representative.

Mr. Xi sent a message of congratulations to Mr. Trump after his November win, telling him the U.S. and China “stand to gain from cooperation and lose from confrontation.” The Chinese leader also pledged to help the two countries “get along with each other.”

• Jeff Mordock can be reached at jmordock@washingtontimes.com.