Most of Hankook Tire & Technology's plant in Daejon, South Korea, remains shut down more than one month after a fire broke out there.
The multi-day fire was completely extinguished on March 15.
A Hankook spokesperson recently told MTD that "most part of the plant is shut down for official investigation, but one production line, which was not affected by the fire, is currently going through test-run under strict supervision."
The Daejeon plant produces 20 million tires annually, according to South Korea news media reports.
Sixty-five percent of its output is shipped overseas.
The factory "consists of three parts. Two of them are responsible for production and third part of it is the warehouse. We cannot predict when the plant will be back to full production as we are still undergoing official investigation."
More than 200,000 tires were destroyed in the blaze, according to the Korea JoonAng Daily.
"An investigation will be conducted and a damage assessment will take place afterwards," Hankook told MTD last month.
"In the meantime, we plan to optimize our supply chain to the best of our ability to continue to source and distribute products to supply our partners with minimal interruption."
Hankook has eight plants worldwide.