North Korean leader Kim Jong Un has ordered preparations for a second summit with President Donald Trump, saying he'll "wait with patience and in good faith" to work toward a common goal, the North's state media reported Thursday.

Despite Kim's determination for another meeting with Trump, the two remain at odds over fundamental issues. Experts say a major sticking point is what denuclearization steps Kim should take to move forward stalled nuclear negotiations and what rewards Trump should provide to push Kim to take those measures.

The Korean Central News Agency said Kim received a letter from Trump from a North Korean envoy who met the U.S. president in Washington last week. After meeting Kim Yong Chol, Trump said that he and Kim Jong Un will probably meet around the end of February but did not say exactly when and where the summit would take place.

Thursday's report said Kim expressed satisfaction with his envoy's meeting with Trump and spoke highly of the U.S. president for "expressing his unusual determination and will for the settlement of the issue with a great interest in the second summit."

Nuclear negotiations have been stuck since Kim and Trump met in Singapore last June for their first summit, which ended with Kim's vague denuclearization pledge that his government had previously used when it called for the withdrawal of the 28,500 U.S. troops in South Korea. A summit accord also stated that the United States and North Korea will commit to establishing new relations and join efforts to build a lasting and stable peace on the Korean Peninsula. The negotiations have replaced fears of war following a series of North Korean high-profile nuclear and missile tests in 2017 that were followed by exchanges of crude insults and threats of total destruction between Kim and Trump.