| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.41 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.68 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.12 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.89 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.39 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.67 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.54 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.81 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1256.07 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.84 | USD | 20251107 |