Tiangong-1, an abandoned Chinese orbiting lab, re-entered the atmosphere over the South Pacific Ocean Sunday evening, fulfilling predictions by the European Space Agency.
The visit, kept tightly under wraps, comes just ahead of a planned summit between Kim and President Trump. Both Kim and Chinese leader Xi Jinping affirmed commitment to North Korea's denuclearization.
Trump ordered stiff new tariffs on a wide range of Chinese imports in response to what the White House calls China's unfair treatment of U.S. technology.
The Dow Jones industrial average tumbled nearly 3 percent Thursday after the Trump administration announced plans to impose tariffs on Chinese imports.
The technology, described as a "large-scale optical tracking and measurement system," is reportedly for use in testing Pakistani ballistic missiles that can carry multiple warheads.
At China's parliament session, Xi was given permission to rule indefinitely. But when a journalist rolled her eyes at another reporter's question, her expression was caught on camera and went viral.
In a land dominated for thousands of years by absolute monarchs, the move is historically significant and seen by Chinese liberals as a big step backward.
U.S. steel producers have seen their market share erode since China began ramping up production. President Trump sees tariffs on imports as a way to protect domestic producers.