Feels like glass substrate timelines got pushed back at least another quarter. - "Samsung Electro-Mechanics Delays Semiconductor Glass Substrate Investment" due to a bottleneck in customer reliability evaluations of prototypes. At its recent second-quarter earnings presentation, less than a month later, the company revised the start of operations to 2028. - "SKC Reportedly Pushes Glass Substrate Mass Production to 2027, Targets Final Validation by Year-end" (Trendforce), earlier last month. TLDR: - SKC Absolics H2 2026 -> H1 2027 - Samsung H2 2027 -> H1 2028 Not everything is always good news with timeline shifts, but glass core substrate shifts do feel imminent. Volume ramp for some players eg. $LPK / Philoptics (161580) / E&R (8027) likely track these mass production timelines.