SEOUL, South Korea — South Korean factory managers returned Wednesday to a shuttered industrial park in North Korea for the first time in two months as the two governments tried again but failed to agree on terms for reopening the complex, once an iconic symbol of inter-Korean economic cooperation.

Sixty factory managers from the South arrived in the Kaesong Industrial Zone, the factory park in the North Korean border town of the same name, for a day trip to check on their factories, which have been idle since the last of the managers withdrew in late April. North Korea halted production there in early April by withdrawing all 53,000 of its workers, blaming tensions it said were caused by joint American-South Korean military drills.

The factory managers inspected their manufacturing equipment ahead of the possible resumption of operations. Another group of South Korean factory managers planned to make a similar trip to Kaesong on Thursday.

Representatives of the two Korean governments had met on the border over the weekend and agreed upon the factory managers’ trips to Kaesong, but they remained far apart over the terms of reopening the complex. They plan to meet again on Monday.