| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1342.02 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1130.12 | 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 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1582.17 | USD | 20251128 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1568.04 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1539.79 | USD | 20251128 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.12 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1568.04 | USD | 20251128 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1568.04 | USD | 20251128 |