| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 845.9 | USD | 20251021 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | Industrial Grade | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 916.4 | USD | 20251021 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 916.4 | USD | 20251021 |