| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.7 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.82 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.1 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.87 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.93 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.93 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.99 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.93 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.79 | USD | 20251121 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.79 | USD | 20251121 |