| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.79 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.63 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.72 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.61 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.88 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.77 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.0 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.77 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.83 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.83 | USD | 20251103 |