| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.79 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.2 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.2 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.27 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.27 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.9 | USD | 20251015 |