| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.0 | USD | 20251105 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.31 | USD | 20251104 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.65 | USD | 20251103 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.71 | USD | 20251030 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1355.11 | USD | 20251029 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1354.38 | USD | 20251027 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1353.49 | USD | 20251024 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1353.68 | USD | 20251023 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1352.99 | USD | 20251022 |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1353.45 | USD | 20251021 |