| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 976.15 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1068.1 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1068.1 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 976.15 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1259.09 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1067.09 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1257.9 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 975.22 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.79 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.95 | USD | 20251209 |