| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.25 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.44 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.5 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.34 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.1 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.28 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.16 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.87 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.99 | USD | 20251124 |