| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1187.3 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.16 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.43 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1187.56 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.25 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.25 | USD | 20251204 |