On July 7th, Cube Entertainment issued an official statement regarding LIGHTSUM's activities, after one of their makeup staff tested positive for COVID-19.

Here is the statement issued by Cube Entertainment:

"Hello,

This is Cube Entertainment. One of LIGHTSUM's makeup staff was confirmed to have tested positive for COVID-19 this morning (July 8th KST).
In response, LIGHTSUM will cancel all their upcoming schedules and visit the hospital for a rapid COVID-19 PCR test. No instructions have been made by health authorities as of yet. But in order to do our best to prevent the spread of COVID-19, the LIGHTSUM members will self-quarantine until we are notified of any further instructions made by the health authorities.

Once again, we apologize for causing concern to many people. We will do our best to preserve the health and safety of our artists by complying with the government's quarantine guidelines."