| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.35 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.73 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.27 | USD | 20251008 |