| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1356.91 | USD | 20251205 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1357.22 | USD | 20251204 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1356.81 | USD | 20251203 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1356.05 | USD | 20251202 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1356.72 | USD | 20251201 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1356.01 | USD | 20251126 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1355.43 | USD | 20251125 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1355.03 | USD | 20251124 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.5 | USD | 20251121 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.55 | USD | 20251119 |