| 报告时间 | 股东名称 | 持股数量(股) | 占总股本比例(%) |
| 2009-12-31 | 济南柴油机厂 | 172,523,520 | 60.00 |
| 2008-12-31 | 济南柴油机厂 | 143,769,600 | 60.00 |
| 2008-06-30 | 济南柴油机厂 | 143,769,600 | 60.00 |
| 2007-12-31 | 济南柴油机厂 | 143,769,600 | 60.00 |
| 2007-06-30 | 济南柴油机厂 | 143,769,600 | 60.00 |
| 2006-12-31 | 济南柴油机厂 | 164,736,000 | 68.75 |
| 2006-06-30 | 济南柴油机厂 | 137,280,000 | 68.75 |
| 2005-12-31 | 济南柴油机厂 | 137,280,000 | 68.75 |
| 2005-06-30 | 济南柴油机厂 | 114,400,000 | 68.75 |
| 2004-12-31 | 济南柴油机厂 | 114,400,000 | 68.75 |
| 2004-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2003-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2003-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2002-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2002-09-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2002-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2001-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2001-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2000-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 2000-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1999-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1999-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1998-12-31 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1998-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1998-04-09 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1997-06-30 | 济南柴油机厂 | 71,500,000 | 68.75 |
| 1996-12-31 | 济南柴油机厂 | 55,000,000 | 68.75 |