| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 389.04 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 389.04 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.74 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |