A senior North Korean tourism official gave a video presentation on Wednesday night to scores of Chinese businesspeople and officials shuttled to the park on a 21-hour bare-bones cruise from the Rason region in the far north of the country. The official, Kim Kwang-yun, told foreign reporters who had been given a rare opportunity to accompany the Chinese group to this secretive country that Mount Kumgang was open to investment from anywhere.

“Last night, I explained a lot to allow foreigners to see the beautiful sights of Mount Kumgang,” Mr. Kim said as he sat beneath chandeliers in the lobby of the Kumgang Hotel, adding that he could also talk about investing “if big delegations from Europe, Africa and other countries come to the Mount Kumgang area.”

The effort by North Korean officials to bring foreign investment to Mount Kumgang is the latest move in a chess match between the two Koreas over the park, which abuts the demilitarized zone. New investment would help with infrastructure construction, and rejuvenated park operations could bolster tourist numbers. But the vast majority of the two million visitors who have come to the resort since its opening in 1998 have been South Koreans, and North Korean officials say they want to restart their partnership with Hyundai Asan. The very public wooing of foreign investors could be an effort to pressure the South Korean government to let Hyundai Asan rejoin the venture.

The North Koreans began raising the stakes on Aug. 22, when officials informed the government in the South that they were evicting any remaining South Korean employees from the park and contended that they had the right to “start legal disposal” of South Korean assets, which amount to $443 million.

The South Korean government immediately said it would take legal and diplomatic measures to protect the assets, and Hyundai Asan warned that anyone who bought facilities at the resort would be implicated in international lawsuits.