| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Chem | China national standards | MT | 293.48 | USD | 20260609 |
| Dongying Huatai Chem | China national standards | MT | 296.26 | USD | 20260603 |
| Dongying Huatai Chem | China national standards | MT | 293.31 | USD | 20260602 |
| Dongying Huatai Chem | China national standards | MT | USD | 20260601 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260526 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260522 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260509 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260508 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260508 | |
| Dongying Huatai Chem | China national standards | MT | USD | 20260507 |