| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.89 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.12 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.06 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.92 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.86 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.71 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.95 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.01 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.79 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.11 | USD | 20251103 |