| 3/14/2018 | 690320900000 | FIRE RESISTANT ITEM
| 2790 | Units | 23573.6 | N/A | FERROSER MÜMESSILLIKVE METAL SAN.LTD.STI. |
| 3/20/2018 | 690310000011 | FIRE RESISTANT GRAFIT POTA INSULATION MATERIAL
| 150 | Units | 8330.21 | N/A | ER-BAKIR ELEKTROLITIK BAKIR MAMULLERI A.S. |
| 3/1/2018 | 690390909012 | CERAMIC TUBE FROM FIRE-RESISTANT REFRACTORY MATERIAL USED IN FOUNDRY
| 48 | Units | 2938.3 | N/A | VESUVIUS ISTANBUL REFRAKTER SANAYI VE TIC.A.S. |
| 3/20/2018 | 690320900000 | SOLID SLAB - PERFORATED SLAB - I SHAPE SUPPORT [FIRE RESISTANT CERAMIC OVEN PLATES]
| 4580 | Units | 37952.16 | N/A | IZOREF ENDÜSTRIYEL ÜRÜNLER MAK.KIM.SAN.VE DIS.TIC.LT |
| 3/5/2024 | 690320900000 | FIRE RESISTANT CERA-MICK ITEM | 24 | UNIT | 4532 | N/A | VESUVİUS İSTANBUL REFRAKTER SANAYİ VE TİCARET ANONİM ŞİRKETİ |
| 3/5/2024 | 690320900000 | FIRE RESISTANT CERA-MICK ITEM | 260 | UNIT | 31887 | N/A | VESUVİUS İSTANBUL REFRAKTER SANAYİ VE TİCARET ANONİM ŞİRKETİ |
| 3/7/2024 | 690390909019 | OTHER FIRE RESISTANT ITEMS (REFRACTORY GOODS/FOUNDATION) | 192 | UNIT | 27840 | N/A | HABAŞ SINAİ VE TIBBİ GAZLAR İSTİHSAL ENDÜSTRİSİ ANONİM ŞİRKETİ |
| 3/29/2024 | 690390909019 | FIRE-RESISTANT CERAMIC SUPPORT | 240 | UNIT | 4984 | N/A | MOREN ENDÜSTRİYEL HAMMADDELER TİCARET LİMİTED ŞİRKETİ |
| 3/6/2024 | 690390909019 | OTHER FIRE RESISTANT CERAMIC ITEMS ( HO/NEYCOMB CERAMIC PB ) | 7000 | UNIT | 31361 | N/A | BSK HAVALANDIRMA EKİPMANLARI ANONİM ŞİRKETİ |
| 3/8/2024 | 690390909019 | SISIC BEAM (FIRE-RESISTANT CERAMIC PLA/KA) | 50 | UNIT | 2022 | N/A | CRS METALÜRJİ İZOLASYON VE ENDÜSTRİYEL ÇÖZÜMLER SANAYİ VE TİCARET LİMİTED ŞİRKETİ |