Kim Jong Un is turning on the charm ahead of his summit with Donald Trump, adding pressure on the U.S. president to ease sanctions against North Korea even before it’s made any significant concessions.

The 34-year-old dictator plans to invite foreign journalists to witness the shutdown of North Korea’s main nuclear weapons test site in May, South Korean President Moon Jae-in’s spokesman told reporters on Sunday. The revelation came shortly after Kim pledged “complete denuclearization” at a meeting with Moon on Friday, without providing further detail.