| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Chem | China national standards | MT | 234.88 | USD | 20260213 |
| Dongying Huatai Chem | China national standards | MT | 231.86 | USD | 20260211 |
| Dongying Huatai Chem | China national standards | MT | 243.31 | USD | 20260210 |
| Dongying Huatai Chem | China national standards | MT | 252.59 | USD | 20260130 |
| Dongying Huatai Chem | China national standards | MT | 247.7 | USD | 20260126 |
| Dongying Huatai Chem | China national standards | MT | 242.59 | USD | 20260116 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |
| Dongying Huatai Chem | China national standards | MT | 240.79 | USD | 20260107 |