| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1131.77 | USD | 20251211 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1131.77 | USD | 20251211 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1130.37 | USD | 20251209 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1130.76 | USD | 20251205 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1130.6 | USD | 20251201 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1129.19 | USD | 20251124 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1128.8 | USD | 20251119 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1128.8 | USD | 20251119 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1129.69 | USD | 20251117 |