| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 930.88 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 930.88 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 923.8 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 923.8 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 905.41 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 905.41 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 904.56 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 922.93 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 904.3 | USD | 20251209 |