| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.56 | USD | 20251023 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.02 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.02 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |