| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 766.46 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 766.46 | USD | 20250922 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 738.33 | USD | 20250922 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 745.37 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 745.37 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 745.37 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 632.86 | USD | 20250922 |