| 3/29/2024 | 720293000000 | FERRONIOBIUM NB: 65.6% FE: 30.2% C: 0.15%/ (POWDER WEIGHT: 19,798 MT) | 24590 | KILOGRAM | 601149 | N/A | ÇOLAKOĞLU METALURJİ ANONİM ŞİRKETİ |
| 3/22/2018 | 720293000000 | FERRONIOBIUM (FERRO-NIOBYUM) (63-73%) NB = 65.6%
| 24000 | Kilogram | 668835.17 | N/A | ÇOLAKOGLU METALURJI ANONIM SIRKETI |
| 3/20/2024 | 720293000000 | FERRONIOBIUM LUMP(FE-RRONIOBIUM LUMP) | 16257 | KILOGRAM | 671434 | N/A | İSKENDERUN DEMİR VE ÇELİK ANONİM ŞİRKETİ |
| 3/25/2024 | 720293000000 | FERRONIOBIUM LUMP 10-50 MM CONTAINING ( /FERRO NIOBIUM) | 16205 | KILOGRAM | 669266 | N/A | EREĞLİ DEMİR VE ÇELİK FABRİKALARI TÜRK ANONİM ŞİRKETİ |
| 3/21/2024 | 720293000000 | FERRO NIOBIUM (FERRONIOBIUM)(40 PALLET 16/0 STEEL DRUMS) | 26320 | KILOGRAM | 1145295 | N/A | TOSYALI DEMİR ÇELİK SANAYİ ANONİM ŞİRKETİ |
| 3/25/2024 | 720293000000 | FERRONIOBIUM LUMP 10-50 MM CONTAINING (F/ERRO NIOBIUM) | 16190 | KILOGRAM | 668647 | N/A | EREĞLİ DEMİR VE ÇELİK FABRİKALARI TÜRK ANONİM ŞİRKETİ |
| 3/25/2024 | 720293000000 | FERRONIOBIUM (FERRO-NIOBIUM) | 15624 | KILOGRAM | 676180 | N/A | EREĞLİ DEMİR VE ÇELİK FABRİKALARI TÜRK ANONİM ŞİRKETİ |
| 3/13/2018 | 720293000000 | FERRONIOBIUM 112-X
| 3500 | Kilogram | 98215.55 | N/A | EUROTÜRKMET METAL ANONIM SIRKETI |