| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.65 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.55 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.65 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.01 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.62 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.9 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.79 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.73 | USD | 20251030 |