| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 789.3 | USD | 20251017 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 789.09 | USD | 20251016 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 802.87 | USD | 20251015 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 802.58 | USD | 20251014 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 802.74 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 801.67 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 815.88 | USD | 20250929 |