| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | 96.2% | MT | 572.32 | USD | 20251208 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.38 | USD | 20251206 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.57 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.38 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.57 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.57 | USD | 20251205 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.51 | USD | 20251204 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 989.64 | USD | 20251204 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.68 | USD | 20251204 |