| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 352.07 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.03 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.95 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.16 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.07 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.24 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.07 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.11 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.11 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.11 | USD | 20250909 |