| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1271.92 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1342.59 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1341.18 | USD | 20251112 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1270.59 | USD | 20251112 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1270.0 | USD | 20251111 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1340.56 | USD | 20251111 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1269.75 | USD | 20251031 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1340.29 | USD | 20251031 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1338.9 | USD | 20251022 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.43 | USD | 20251022 |