| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1087.66 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1116.15 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |