Osaka North Port Co., Ltd.

Japanese: 大阪北港[株] - おおさかきたこう

…Sumitomo moved the refining facilities to Shisakajima, but it was ineffective, and the pollution dispute continued for a long time, and they continued to pay compensation until it was resolved by the development of new technology in the Showa period. From the end of the Taisho period to the beginning of the Showa period, the company added trust, life insurance, electricity, building, Osaka North Port, and non-life insurance to its group of businesses, and took on the form of a comprehensive zaibatsu. As a result, the status of the Besshi Copper Mine declined relatively within the zaibatsu, while the bank boasted a prominent position, and the weight of the manufacturing sector gradually increased. …

From Sumitomo Corporation

…The core trading company of the Sumitomo Group. Its predecessor was Osaka Hokko Co., Ltd., which was established in 1919 with the aim of developing the area adjacent to the north of Osaka Port and building a new port in the area. In 1944, Osaka Hokko Co., Ltd. was renamed Sumitomo Land Construction Co., Ltd. after merging with Sumitomo Building Co., Ltd., and became the real estate division of the Sumitomo zaibatsu. …

*Some of the terminology referenced in "Osaka Hokko Co., Ltd." is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…住友は精錬施設を四阪島に移したが効果なく，長い間公害紛争が続き，昭和期に新技術の開発で解決するまで賠償金を支払い続けた。大正末期から昭和初期にかけては，信託，生命保険，電力，ビル，大阪北港，損害保険などを傘下事業に加え，総合財閥の形を整えた。これにより財閥内での別子銅山の地位は相対的に下がり，銀行が抜群の地位を誇り，製造部門の比重がしだいに高まった。…