| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.15 | USD | 20251208 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.34 | USD | 20251206 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.34 | USD | 20251205 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.54 | USD | 20251204 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.28 | USD | 20251203 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 876.21 | USD | 20251201 |