| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.95 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.04 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.12 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.24 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.12 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.08 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.08 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.12 | USD | 20251013 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.02 | USD | 20251011 |