| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.74 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.74 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.74 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.82 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.82 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.69 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.69 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.69 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.47 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.47 | USD | 20251125 |