| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1080.92 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1031.47 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1109.18 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1080.92 | USD | 20251209 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1271.67 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |