| 3/8/2018 | 690390909019 | FIRE-RESISTANT POTA INSULATION MATERIAL
| 10 | Units | 4997.82 | N/A | ER-BAKIR ELEKTROLITIK BAKIR MAMULLERI A.S. |
| 3/20/2018 | 690310000011 | FIRE RESISTANT GRAFIT POTA INSULATION MATERIAL
| 8 | Units | 4989.59 | N/A | ER-BAKIR ELEKTROLITIK BAKIR MAMULLERI A.S. |
| 3/13/2018 | 690320900000 | FIRE RESISTANT INSULATING MATERIAL USED IN FOUNDRY
| 4650 | Units | 15408.68 | N/A | VESUVIUS ISTANBUL REFRAKTER SANAYI VE TIC.A.S. |
| 3/6/2018 | 690320900000 | FIRE RESISTANT INSULATING MATERIAL USED IN FOUNDRY
| 1598 | Units | 7748.35 | N/A | VESUVIUS ISTANBUL REFRAKTER SANAYI VE TIC.A.S. |
| 3/21/2018 | 690320900000 | FIRE RESISTANT INSULATING MATERIAL USED IN FOUNDRY
| 440 | Units | 3637.56 | N/A | VESUVIUS ISTANBUL REFRAKTER SANAYI VE TIC.A.S. |
| 3/8/2018 | 690390909019 | FIRE-RESISTANT POTA INSULATION MATERIAL
| 12 | Units | 7773.59 | N/A | ER-BAKIR ELEKTROLITIK BAKIR MAMULLERI A.S. |
| 3/25/2024 | 690220999019 | FIRE RESISTANT REFR-AKTER | 12 | UNIT | 2781 | N/A | TÜRKİYE ŞİŞE VE CAM FABRİKALARI ANONİM ŞİRKETİ |
| 3/26/2024 | 690390909019 | FIRE RESISTANT CRUCIBLE - INSULATION MATERIAL | 2 | UNIT | 1163 | N/A | ER-BAKIR ELEKTROLİTİK BAKIR MAMULLERİ ANONİM ŞİRKETİ |
| 3/26/2024 | 690390909019 | FIRE RESISTANT CRUCIBLE - INSULATION MATERIAL | 2 | UNIT | 1144 | N/A | ER-BAKIR ELEKTROLİTİK BAKIR MAMULLERİ ANONİM ŞİRKETİ |
| 3/26/2024 | 690390909019 | FIRE RESISTANT CRUCIBLE - INSULATION MATERIAL | 2 | UNIT | 1178 | N/A | ER-BAKIR ELEKTROLİTİK BAKIR MAMULLERİ ANONİM ŞİRKETİ |