Development Projects In Progress And Development Projects In Progress And Net Assets Net、非支配株主に帰属する当期純利益又は非支配株主に帰属する当期純損失（△）、浚渫船（純額）
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Net Assets Net | 非支配株主に帰属する当期純利益又は非支配株主に帰属する当期純損失（△） | 浚渫船（純額） |
|---|
| 2008/03 | - | | - | | 17.6億 | |
| 2009/03 | - | | - | | 12.6億 | -28.3% |
| 2010/03 | - | | - | | 10.1億 | -20.1% |
| 2011/03 | - | | - | | 9.4億 | -6.9% |
| 2012/03 | - | | - | | 5.4億 | -42.6% |
| 2013/03 | - | | - | | 7.42億 | +37.4% |
| 2014/03 | - | | - | | 10.9億 | +46.6% |
| 2014/06 | - | | 23百万 | | - | |
| 2014/09 | - | | 81百万 | +252.2% | - | |
| 2014/12 | - | | 81百万 | ±0% | - | |
| 2015/03 | - | | 83百万 | +2.5% | 9.35億 | -14.1% |
| 2015/12 | - | | 0 | -100% | - | |
| 2016/03 | - | | - | | 7.17億 | -23.3% |
| 2016/06 | - | | 0 | | - | |
| 2016/12 | - | | -1百万 | | - | |
| 2017/03 | - | | - | | 5.87億 | -18.1% |
| 2017/06 | - | | 1百万 | 黒転 | - | |
| 2017/09 | - | | 1百万 | ±0% | - | |
| 2017/12 | - | | -3百万 | 赤転 | - | |
| 2018/03 | - | | -5百万 | 赤拡 | 4.81億 | -18.1% |
| 2018/06 | - | | 0 | +100% | - | |
| 2018/09 | - | | 0 | | - | |
| 2018/12 | - | | -4百万 | | - | |
| 2019/03 | - | | -3百万 | 赤縮 | 4.14億 | -13.9% |
| 2019/06 | - | | 2百万 | 黒転 | - | |
| 2019/09 | - | | 6百万 | +200% | - | |
| 2019/12 | - | | 3百万 | -50% | - | |
| 2020/03 | - | | 2百万 | -33.3% | 4.17億 | +0.7% |
| 2020/09 | - | | 0 | -100% | - | |
| 2020/12 | - | | -3百万 | | - | |
| 2021/03 | - | | -12百万 | 赤拡 | 2.58億 | -38.1% |
| 2021/06 | - | | 6百万 | 黒転 | - | |
| 2021/09 | - | | 1百万 | -83.3% | - | |
| 2021/12 | - | | -6百万 | 赤転 | - | |
| 2022/03 | - | | -33百万 | 赤拡 | 9.19億 | +256.2% |
| 2022/06 | - | | -18百万 | 赤縮 | - | |
| 2022/09 | - | | -37百万 | 赤拡 | - | |
| 2022/12 | - | | -69百万 | 赤拡 | - | |
| 2023/03 | - | | -79百万 | 赤拡 | 8.82億 | -4% |
| 2023/06 | - | | -34百万 | 赤縮 | - | |
| 2023/09 | - | | -110百万 | 赤拡 | - | |
| 2023/12 | - | | -42百万 | 赤縮 | - | |
| 2024/03 | - | | -52百万 | 赤拡 | 6.59億 | -25.3% |
| 2024/06 | - | | -30百万 | 赤縮 | - | |
| 2024/09 | - | | 161百万 | 黒転 | - | |
| 2024/12 | - | | 139百万 | -13.7% | - | |
| 2025/03 | - | | 7百万 | -95% | 4.55億 | -31% |
| 2025/06 | - | | 3百万 | -57.1% | - | |
