| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1539.79 | USD | 20251128 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.55 | USD | 20251128 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1695.18 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1610.42 | USD | 20251128 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1511.53 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1539.79 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1539.79 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1568.04 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1568.04 | USD | 20251128 |