| 3/4/2018 | 730459929000 | "BOILER PIPE (WITHOUT STITCH, HOT RUB PIPE) (5401,09 M)"
| 836 | Units | 52214.62 | N/A | ILKER ENERJI TICARET LIMITED SIRKETI |
| 3/4/2018 | 730459929000 | "BOILER PIPE (WITHOUT STITCH, HOT RUB PIPE) (3933,44 M)"
| 640 | Units | 44232.88 | N/A | ILKER ENERJI TICARET LIMITED SIRKETI |
| 3/6/2018 | 730459929000 | "HIGH AND LOW PRESSURE BOILER PIPES, VALVES AND SUPPORTS (PARTS) (ONE WITH TEF) (Y.DISI MAK.TEÇ.LIS.NO: 23) (5.320,42 METER = 23.357 KG)"
| 23357 | Kilogram | 65386.73 | N/A | ÇAN KÖMÜR VE INSAAT ANONIM SIRKETI |
| 3/11/2018 | 730459929000 | "HIGH AND LOW PRESSURE BOILER PIPES, VALVES AND SUPPORTS (PARTS) (ONE WITH TEF) (Y.DISI MAK.TEÇ.LIS.NO: 23) (4.247,36 METER = 18.614 KG)"
| 18614 | Kilogram | 51339.01 | N/A | ÇAN KÖMÜR VE INSAAT ANONIM SIRKETI |
| 3/4/2018 | 730459929000 | "BOILER PIPE (SEAMLESS, HOT RUB PIPE) (5575,71M)"
| 976 | Units | 58341.29 | N/A | ILKER ENERJI TICARET LIMITED SIRKETI |
| 3/26/2024 | 730451899000 | 678 PIECES SEAMLESS COLD DRAWN BOILER PIPES | 20670 | KILOGRAM | 82290 | N/A | 4K METAL MAKİNA İMALAT İNŞAAT NAKLİYAT MÜHENDİSLİK VE ENDÜSTRİYEL KONTROLLÜK SANAYİ TİCARET LİMİTED ŞİRKETİ |
| 3/26/2024 | 730459839000 | SEAMLESS COLD DRAWN BOILER PIPES (/273 MM) | 11220 | KILOGRAM | 21087 | N/A | 4K METAL MAKİNA İMALAT İNŞAAT NAKLİYAT MÜHENDİSLİK VE ENDÜSTRİYEL KONTROLLÜK SANAYİ TİCARET LİMİTED ŞİRKETİ |
| 3/28/2024 | 730451899000 | 431 PIECES SEAMLESS COLD DRAWN BOILER PIPES | 11765 | KILOGRAM | 38072 | N/A | 4K METAL MAKİNA İMALAT İNŞAAT NAKLİYAT MÜHENDİSLİK VE ENDÜSTRİYEL KONTROLLÜK SANAYİ TİCARET LİMİTED ŞİRKETİ |
| 3/12/2024 | 730451899000 | 1531 PIECES SEAMLESS COLD DRAWN BOILER PIPES (STEEL 20 STANDARD TU 14-3R-55-2001 LENGTH 11000 MM+ -0/+50 | 40495 | KILOGRAM | 110739 | N/A | 4K METAL MAKİNA İMALAT İNŞAAT NAKLİYAT MÜHENDİSLİK VE ENDÜSTRİYEL KONTROLLÜK SANAYİ TİCARET LİMİTED ŞİRKETİ |
| 3/18/2018 | 730459929000 | "BOILER PIPE (SEAMLESS, HOT RUB PIPE)"
| 10 | Units | 16604.13 | N/A | ILKER ENERJI TICARET LIMITED SIRKETI |