Nikkei press reported 2015 printing paper market share in Japan. According to it, the top supplier was Nippon Paper (30%).
Figure: 2015 Printing Paper Market Share in Japan

| Manufacturer | Market share (%) |
| Nippon Paper | 29.9 |
| Oji Paper | 19.0 |
| Hokuetsu Kishu Paper | 15.6 |
| Daio Paper | 13.3 |
| Mitsubishi Paper Mills | 7.3 |
| Others | 14.9 |
Source is Nikkei Sangyo Shimbun newspaper, the article on 2016 July 25th.
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