| 3/11/2018 | 720293000000 | FERRO NIOBIUM
| 20000 | Kilogram | 584136.45 | N/A | IÇDAS ÇELIK ENERJI TERSANE VE ULASIMSAN.A.S. |
| 3/18/2018 | 720293000000 | FERRO NIOBIUM 63-73% 5-50 MM
| 500 | Kilogram | 13329.88 | N/A | EUROTÜRKMET METAL ANONIM SIRKETI |
| 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 |
| 3/25/2018 | 811299300000 | NIOBIUM
| 1000 | Kilogram | 51864.64 | N/A | AVEKS IÇ VE DIS TICARET A.S. |
| 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 |
| 3/28/2024 | 811299500000 | ARTICLES MADE OF NIOBIUM | 3 | SET | 3104 | N/A | ECZACIBAŞI MONROL NÜKLEER ÜRÜNLER SANAYİ VE TİCARET ANONİM ŞİRKETİ |
| 3/1/2024 | 720293000000 | FERRO NIOBIUM POWDERS-I | 250 | KILOGRAM | 8232 | N/A | KLADEX TEL ÜRETİM SANAYİ VE TİCARET ANONİM ŞİRKETİ |