| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251130 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.36 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.36 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.85 | USD | 20251127 |