EXHIBIT 21

SUBSIDIARIES OF BUCYRUS INTERNATIONAL INC.

Corporate Name	State/Country of Incorporation
Boonville Mining Services, Inc.	Delaware
Bucyrus (Africa) Surface (Proprietary) Limited	Republic of South Africa
Bucyrus Electrical Services (Proprietary) Limited	Republic of South Africa
Bucyrus Mechanical Service (Proprietary) Limited	Republic of South Africa
Bucyrus America, Inc.	Pennsylvania
Bucyrus (Brasil) Ltda.	Brazil
Bucyrus Canada Limited	Ontario
Bucyrus Canada Acquisition, Ltd.	Alberta
Bucyrus Field Services, Inc.	Delaware
Minserco-DBT Mexico, S. de RL. De CV.	Mexico
Bucyrus Holdings GmbH	Germany
Bucyrus Europe Holdings, Ltd.	United Kingdom
Bucyrus Europe Limited	United Kingdom
White Line Plant Ltd.	United Kingdom
Bucyrus Germany Holdings GmbH	Germany
Bucyrus DBT Europe GmbH	Germany
Bucyrus Africa Underground (Proprietary) Limited	Republic of South Africa
Bucyrus Germany Service GmbH	Germany
Bucyrus Polska Sp z.o.o.	Poland
Bucyrus UK Limited	United Kingdom
DPM Gesellschaft fur deutsch-polnischen Maschesenhandel und Leasing GmbH	Germany
DBT Mining Engineers GmbH	Germany

DBT (Langfang) Mine Technik Co. Ltd.	People’s Republic of China
000 DBT Rus	Russian Federation
Tangshan DBT Machinery Co., Ltd.	People’s Republic of China
Shenhua DBT Belt Conveyor Co. Ltd.	People’s Republic of China
Bucyrus India Private Limited	India
Bucyrus Industries, Inc.	Delaware
Bucyrus International (Chile) Limitada	Chile
Bucyrus International Hong Kong Limited	Hong Kong
Bucyrus International (Peru) S.A.	Peru
Bucyrus (Mauritius) Limited	Mauritius
BWC Gear, Inc.	Delaware
BWP Gear Inc.	Delaware
Western Gear Machinery Co.	Delaware
Equipment Assurance Limited	Cayman Islands
Wisconsin Holdings Pty. Ltd.	Australia
Bucyrus (Australia) Proprietary Ltd.	Australia
DBT Australia Holdings Pty. Ltd.	Australia
Bucyrus Australia Underground Pty. Ltd.	Australia
Bucyrus Australia Underground LAD Pty. Ltd.	Australia