| 3/4/2018 | 681510900000 | GRAFIT OR OTHER CARBON GOODS (EXCEPT USED IN ELECTRICAL WORKS):; OTHERS (CARBON PACKING RING)
| 65 | Units | 12484.31 | N/A | TÜRKIYE PETROL RAFINERILERI ANONIM SIRKETI |
| 3/18/2018 | 681510900000 | CARBON RING
| 9 | Units | 15363.65 | N/A | EAGLE BURGMANN ENDÜSTRIYEL SIZDIRMAZLIK SANAYI VE TICARET LIMITED SIRKETI |
| 3/6/2018 | 681510900000 | GRAPHITE OR OTHER CARBON GOODS (EXCEPT FOR ELECTRICAL WORKS):; OTHERS (O-RING)
| 4 | Units | 11627.71 | N/A | TÜRKIYE PETROL RAFINERILERI ANONIM SIRKETI |
| 3/11/2024 | 681513000000 | CARBON FIBER TO RING-A | 86 | UNIT | 3409 | N/A | DİMAS YAPI VE İNŞAAT MALZEMELERİ SANAYİ VE TİCARET LİMİTED ŞİRKETİ |
| 3/19/2024 | 681519000000 | CARBON RING ASSY-(OTHER CARBON ITEMS) | 42 | UNIT | 9402 | N/A | TÜRKİYE PETROL RAFİNERİLERİ ANONİM ŞİRKETİ TÜPRAŞ |
| 3/29/2024 | 681519000000 | CARBON RING-((GOODS OF STONE OR OTHER MINERAL MATERIALS NOT ELSEWHERE SPECIFIED OR INCLUDED IN THE TARIFF (INCLUDING CARBON FIBER AND GOODS OF CARBON FIBER AND GOODS OF PATTERY): OTHERS)) | 86 | UNIT | 12456 | N/A | TÜRKİYE PETROL RAFİNERİLERİ ANONİM ŞİRKETİ TÜPRAŞ |
| 3/12/2024 | 681519000000 | CARBON RING ( 200 M -) | 202 | KILOGRAM | 2122 | N/A | EAGLE BURGMANN ENDÜSTRİYEL SIZDIRMAZLIK SANAYİ VE TİCARET LİMİTED ŞİRKETİ |
| 3/5/2024 | 681513000000 | PREMIUM RING (CARBON FIBER-FIBER GASKET) | 2 | UNIT | 7 | N/A | JOHN CRANE ENDÜSTRİYEL SIZDIRMAZLIK SİSTEMLERİ LİMİTED ŞİRKETİ |