| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.16 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.16 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.16 | USD | 20251115 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.16 | USD | 20251115 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.16 | USD | 20251114 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.16 | USD | 20251114 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 846.68 | USD | 20251113 |
| 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. | China national standards | MT | 846.68 | USD | 20251113 |