| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.69 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.69 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.69 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.61 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.45 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.45 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.48 | USD | 20251023 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.36 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.44 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 235.3 | USD | 20251020 |