| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1130.6 | USD | 20251201 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1157.42 | USD | 20251124 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1129.19 | USD | 20251124 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1157.42 | USD | 20251124 |
| 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 | 1157.02 | USD | 20251119 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1157.02 | USD | 20251119 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1129.69 | USD | 20251117 |