| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.33 | USD | 20251103 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251101 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.25 | USD | 20251031 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.35 | USD | 20251030 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.47 | USD | 20251029 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.24 | USD | 20251027 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 422.96 | USD | 20251024 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 422.81 | USD | 20251022 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 422.95 | USD | 20251021 |