| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1075.92 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1251.72 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1279.85 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.05 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.74 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.74 | USD | 20250930 |