| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.06 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 846.67 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.67 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251110 |