Overview
- South Korean prosecutors executed search-and-seizure actions on July 15 at Montage’s local office and also searched local offices of Renesas and Rambus as part of an active competition probe.
- Montage said it is fully cooperating with investigators and that no directors or employees have been charged so far while prosecutors have seized evidence for review.
- Montage is the largest global supplier of memory interface chips with about 36.8% revenue market share in 2024 and reported that South Korea made up more than half of its fiscal 2025 sales.
- News of the raids caused an immediate market shock, with Montage’s Hong Kong shares falling roughly 20–23% and Shanghai-listed shares also sliding.
- U.S. authorities reportedly opened a related DOJ antitrust inquiry in January, so coordinated multi‑jurisdictional enforcement could follow and lead to fines, litigation, or supply‑chain disruption similar to past DRAM price‑fixing cases.