JNTC will supply HDD glass platters to Seagate

Korean glass manufacturer JNTC will supply glass disks for HDDs to hard drive manufacturer Seagate, with plans to start production at its Vietnam factory in the first quarter of next year and expand supply starting in the second quarter. JNTC has completed the construction of the mass production line at its third factory in Viet Tri, Vietnam, which will be invested with approximately 55 billion Korean won starting from the end of 2024, transformed from a factory for wearable devices and automotive cover glass, with an annual production capacity currently estimated at 120 million to 170 million pieces.

JNTC expects that the related business will start contributing revenue from the first quarter of next year, adding several hundred billion Korean won in sales each year, and plans to prioritize meeting Seagate's demand before expanding to customers like Western Digital and Toshiba by 2030. The article estimates that in the future, Seagate's procurement volume of glass disks will be approximately 60% from Japan's Hoya and 40% from JNTC. JNTC also plans to increase its annual production capacity to 400 million to 500 million pieces in the medium to long term.