| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.55 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.73 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.73 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1257.26 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.55 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.7 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.87 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.44 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.63 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.99 | USD | 20251125 |