| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.88 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.35 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | 96.2% | MT | 572.41 | USD | 20251210 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.41 | USD | 20251209 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.19 | USD | 20251209 |
| Shandong Huize Chemical Technology Co., Ltd. | 96.2% | MT | 572.32 | USD | 20251208 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.47 | USD | 20251208 |