TOKYO -- Sumitomo Corp. will begin setting up mobile phone base stations to be shared by the four major telecommunications companies -- NTT Docomo, KDDI, SoftBank and Rakuten Mobile -- in Japan, Nikkei has learned.
Japanese trading company aims to strengthen 5G network nationwide

Sumitomo Corp. believes there is significant room for growth in the market for joint-use base stations in Japan.
TOKYO -- Sumitomo Corp. will begin setting up mobile phone base stations to be shared by the four major telecommunications companies -- NTT Docomo, KDDI, SoftBank and Rakuten Mobile -- in Japan, Nikkei has learned.