| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.11 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.11 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.07 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.85 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.97 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.05 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.01 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.13 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.01 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.01 | USD | 20250908 |