We initiate coverage on diversified wire and cable company Sumitomo Electric Industries, or SEI. It is a leading indium phosphide (InP) substrate producer, which is essential for high-speed optical communication. SEI is also a top-tier player for automotive harnesses and submarine HVDC cables.
Info-communications is a genuine structural growth driver on hyperscale data center demand, supported by aggressive, already-committed capacity expansion.
Bears
Data center/AI capex is now a major swing factor for group profits, and a slowdown in hyperscaler spending or share loss to competitors would hit the highest-growth, highest-multiple segment disproportionately.
Sumitomo Electric Industries, Ltd., or SEI, is a Japanese wire, cable, and materials manufacturer founded in 1897 and headquartered in Osaka. It traces its roots to Sumitomo Group's centuries-old copper business. SEI operates through five segments, with the largest segment being automotive, which supplies wire harnesses and 58% of group sales. Info-communications covers optical fiber cables, fusion splicers, and optical/wireless devices. Electronics offers electronic wires, compound semiconductors, and flexible printed circuits. Environment & energy covers power cables and transmission equipment. Industrial materials includes cutting tools and sintered components. SEI operates across 40 countries, employing over 280,000 people, with a majority of consolidated sales generated in Japan.