| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.39 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.21 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.21 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.21 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1186.17 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.88 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.88 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.88 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.88 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.05 | USD | 20251117 |