| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.99 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.84 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.8 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.02 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.5 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.71 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.75 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.89 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.93 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |