| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1104.31 | USD | 20250918 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1111.35 | USD | 20250918 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 956.6 | USD | 20250918 |