| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.11 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 768.1 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 768.36 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 806.0 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.09 | USD | 20251012 |