| IBR | MEX | IBRXXXX | 1992 | 220000 | air quality management |
| FRA | QME | FACXXXX | 1991 | 709 | air pollution control |
| FRA | MEX | CNXXXXX | 1990 | 1101 | air pollution studies, mexico city |
| NOR | IND | NORADXX | 1991 | 162 | air quality improvement |
| CAN | QME | IDRCXXX | 1993 | 139 | greenhouse gas emissions |
| AUS | QRB | AIDABXX | 1992 | 58 | haze problem control |
| IBR | IND | IBRXXXX | 1994 | 50000 | industrial pollution prevention |
| IBR | IND | IBRXXXX | 1994 | 93000 | |
| NOR | IND | NORADXX | 1992 | 388 | smelting furnace filters, af |
| JPN | MEX | OECFXXX | 1990 | 478853 | sulphur dioxide reduct., mexico city |
| ESP | MEX | ICOXXXX | 1992 | 1833 | toluca village air poll. control, af |