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March 4, 2015

Rengo Completes Construction Work to Renew Containerboard Machine at Marusan Paper Mfg.

Rengo Co., Ltd. (Head Office: Kita-ku, Osaka; Chairman, President & CEO: Kiyoshi Otsubo) announces that construction work has completed, as previously planned, to renew a containerboard (linerboard) machine at its consolidated subsidiary Marusan Paper Mfg. Co., Ltd. (Head Office: Minamisoma-shi, Fukushima; President: Hakaru Mita) and a completion ceremony was held on March 3.

As the Rengo Group’s production center for containerboard in the Tohoku region, Marusan Paper Mfg. used to produce approximately 20,000 tons of containerboard per month using two paper machines: PM6 for linerboard and PM7 for corrugating medium. More than 40 years has elapsed since the PM6 machine was first installed in 1973, and it deteriorated and was damaged by the Great East Japan Earthquake, making replacement with new equipment an urgent matter. The recently completed PM8 for linerboard is compatible with lightweight containerboard—demand for which is increasing as a result of environmental considerations—and further increases in quality were achieved while saving energy and raw materials .

With the completion of the new machinery, the Rengo Group’s containerboard supply system in eastern Japan has been enhanced and the integrated production system from containerboard to corrugated packaging has been strengthened. As a result of the machine renewal, Marusan Paper Mfg. will continue to play a part in the economy of the company’s local region of Minamisoma-shi and Fukushima Prefecture and will contribute greatly to the region’s reconstruction and revitalization through continuous industrial promotion and stable employment.


External view of the new PM8 building

●External view of the new PM8 building




Overview of Marusan Paper Mfg. Co., Ltd.

Location 1-12-1 Aoba-cho, Haramachi-ku, Minamisoma-shi, Fukushima Prefecture
Representative Hakaru Mita
Capital JPY 300 million
Major shareholders

Rengo Co., Ltd. (98.83%)

Main business Manufacturing, processing, and sales of paperboard and special paper
Net sales JPY 13 billion (For the fiscal year ended March 31, 2014)
Number of employees




Overview of renewal


PM8 (PM6 has already been shut down)

Products Containerboard (linerboard)
Maximum production
500 tons/day
Total value of capital

JPY 26 billion