| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.03 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.03 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 400.81 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.86 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.86 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 323.46 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.78 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.78 | USD | 20250922 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1026.64 | USD | 20250922 |