| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.87 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.91 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.91 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.91 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.95 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.87 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.02 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.58 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.74 | USD | 20251009 |