Silicon photonics (SiPh) products continue to see strong demand, with optical communication epitaxy manufacturer LandMark Optoelectronics reporting output still far below customer needs. The company plans to increase capital expenditure (capex) to NT$1.315 billion (US$41.7 million) in 2026 to prepare early for second-half 2027 demand, and aims to introduce semiconductor-grade equipment for processes involving substrates larger than 6 inches, targeting a new expansion phase starting in 2028.