| source | facility | location |
| 0125040020 P906 | COLUMBUS STEEL CASTINGS | COLUMBUS |
| 0215090188 P054 | SHUT D - ELJER PLUMBINGWARE, INC. | SALEM |
| 0215090188 P055 | SHUT D - ELJER PLUMBINGWARE, INC. | SALEM |
| 0215090188 P056 | SHUT D - ELJER PLUMBINGWARE, INC. | SALEM |
| 0247040014 P023 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P024 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P026 | ELYRIA FOUNDRY | ELYRIA |
| 0250110316 P030 | PARKER GEAR PUMP DIVISION | YOUNGSTOWN |
| 0278000025 F004 | ELLWOOD ENGINEERED CASTINGS | HUBBARD |
| 0285010001 P017 | THE QUALITY CASTINGS COMPANY | ORRVILLE |
| 0285010001 P039 | THE QUALITY CASTINGS COMPANY | ORRVILLE |
| 0285010001 P901 | THE QUALITY CASTINGS COMPANY | ORRVILLE |
| 0285010034 F003 | ROSS SAND CASTING INDUSTRY, LLC | ORRVILLE |
| 0285010034 P027 | ROSS SAND CASTING INDUSTRY, LLC | ORRVILLE |
| 0303000166 P902 | MANSFIELD PLUMBING PRODUCTS, INC., TRIM DIVISION | PERRYSVILLE |
| 0303000166 P903 | MANSFIELD PLUMBING PRODUCTS, INC., TRIM DIVISION | PERRYSVILLE |
| 0306000133 P012 | THE MINSTER MACHINE COMPANY | MINSTER |
| 0306010004 P002 | ST. MARYS FOUNDRY INC. | ST. MARYS |
| 0320010001 P004 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P164 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P174 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P202 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P203 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P235 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P248 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P311 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P366 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0322020044 P007 | G. & C. FOUNDRY CO. | SANDUSKY |
| 0322020044 P904 | G. & C. FOUNDRY CO. | SANDUSKY |
| 0546000001 F001 | QUINCY CASTINGS, INC. | QUINCY |
| 0616010006 F016 | CLOW WATER SYSTEMS COMPANY | COSHOCTON (TUSCARAWAS TWP.) |
| 0640010009 F007 | OSCO INC.-JACKSON DIVISION | JACKSON |
| 0640010009 F008 | OSCO INC.-JACKSON DIVISION | JACKSON |
| 0660010101 F004 | BURNHAM FOUNDRY | ZANESVILLE |
| 0660010101 F014 | BURNHAM FOUNDRY | ZANESVILLE |
| 0660010101 F020 | BURNHAM FOUNDRY | ZANESVILLE |
| 0773010001 F001 | OSCO INDUSTRIES - PORTSMOUTH DIVISION | PORTSMOUTH |
| 0773010001 F002 | OSCO INDUSTRIES - PORTSMOUTH DIVISION | PORTSMOUTH |
| 0773010001 F003 | OSCO INDUSTRIES - PORTSMOUTH DIVISION | PORTSMOUTH |
| 0773010001 P013 | OSCO INDUSTRIES - PORTSMOUTH DIVISION | PORTSMOUTH |
| 1318120180 P091 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 1318120180 P092 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 1318120180 P102 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 1431233202 P002 | HARRISON IRONWORKS | HARRISON |
| 1576050200 P003 | SHUT D - OHIO CAST PRODUCTS | CANTON |
| 1576050200 P901 | SHUT D - OHIO CAST PRODUCTS | CANTON |