| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1026.88 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 844.01 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 886.21 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 914.35 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 843.27 | USD | 20250928 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 913.54 | USD | 20250928 |