Mitsui Mining & Smelting Co., Ltd. has been expanding the establishment of a system for mass production in collaboration with GEOMATEC Co., Ltd. Mitsui Mining & Smelting Co., Ltd. announce that mass production of HRDP® has started for a domestic multi-chip module manufacturer. In its January 2018 news release, Mitsui Kinzoku announced the development of HRDP®, a material for the creation of ultra-fine circuits using a glass carrier for the Fan Out panel level package, based on the RDL First method2.