October 30 SMM lead spot price: SMM1# lead ingots remain flat

The SHFE lead market was closed during China’s National Day holiday, while LME lead fluctuated in a down-then-up pattern as the macroeconomic backdrop shifted.

Sumitomo Chemical has established mass production of 4-inch Indium Phosphide (InP) epitaxial wafers at its Ibaraki Works and begun commercial sales, becoming one of the few Japanese epi houses capable of stable volume production. The products target photonic-electronic convergence devices for AI data centers and high-speed networks. The company aims to generate approximately JPY10 billion in InP epiwafer sales by the mid-2030s. SMM views the move into commercial production as a direct addition to Japan’s InP material supply and supportive of medium-term high-purity indium demand. Annual wafer capacity, output and indium consumption were not disclosed.

On October 6, Canterra Minerals updated the Lundberg resource at its Buchans project in Newfoundland, Canada. Indicated resources total 26.08 million tonnes grading 1.31% zinc and 0.56% lead, containing 341,600 tonnes of zinc and 146,200 tonnes of lead.