| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.75 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.05 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.27 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.7 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.16 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.93 | USD | 20251115 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.7 | USD | 20251114 |