| 3/13/2018 | 281122000000 | SILICON DIOXIDE (MICROSILICA 940 U)
| 8000 | Kilogram | 5707.52 | N/A | FOSROC IDEA YAPI KIMYASALLARI SANAYI TICARET A.S. |
| 3/26/2018 | 281122000000 | SILICON DIOXIDE (COMMERCIAL NAME: MICROSILICA)
| 14500 | Kilogram | 4099.6 | N/A | TEKNO YAPI KIMYASALLARI SANAYI VE TICARET A.S. |
| 3/29/2018 | 281122000000 | ELKEM MICROSILICA 920ED
| 8975 | Kilogram | 3435.69 | N/A | SAINT GOBAIN WEBER YAPI KIMYASALLARI SANAYI VE TICARET ANONIM SIRKETI |
| 3/5/2018 | 281122000000 | SILICON DIOXIDE (COMMERCIAL NAME: MICROSILICA)
| 30300 | Kilogram | 8218.6 | N/A | TEKNO YAPI KIMYASALLARI SANAYI VE TICARET A.S. |
| 3/12/2024 | 281122000000 | (ELKEM MICROSILICA HQ U)SILISIUM DIOXIDE/ | 23100 | KILOGRAM | 30226 | N/A | ASMAŞ AĞIR SANAYİ MALZEMELERİ İMAL VE TİCARET ANONİM ŞİRKETİ |
| 3/11/2024 | 281122000000 | (ELKEM MICROSILICA HQ U)SILISIUM DIOXIDE/ | 46200 | KILOGRAM | 53374 | N/A | ASMAŞ AĞIR SANAYİ MALZEMELERİ İMAL VE TİCARET ANONİM ŞİRKETİ |
| 3/18/2024 | 281122000000 | MICROSILICA (SILICIO-M DIOXIDE) | 48000 | KILOGRAM | 26487 | N/A | KİLTAŞ REFRAKTER MALZEME SANAYİ TİCARET ANONİM ŞİRKETİ |