| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.15 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 812.22 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 812.62 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 812.62 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |