| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.06 | USD | 20251129 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.3 | USD | 20251128 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.85 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.06 | USD | 20251128 |
| Shandong Huize Chemical Technology Co., Ltd. | 96.2% | MT | 572.12 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.14 | USD | 20251127 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.37 | USD | 20251127 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.0 | USD | 20251126 |