Cheongju M15

Public facility record

Facility type

Memory

Status

Operating · ASTRIA estimate

Location precision

city-level

Public role

Memory semiconductor production or expansion site

Site roles

Memory manufacturing

Products

NAND

Processes

Not disclosed in selected source

Wafer sizes

Not disclosed in selected source

Public scale

Facility-level capacity is not disclosed in the selected source

Verified

2026-08-28

ASTRIA lifecycle estimate · Disclosure

SK hynix describes M15 as an existing fab expanding TSV capacity.

An existing production fab expanding a named backend capability is treated as operating. Expansion does not quantify current HBM output, utilization or the completion of the added line.

Facility-specific existing-fab and expansion evidence; qualitative lifecycle inference, not a probability estimate. · Estimated 2026-09-11