| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 819.63 | USD | 20251208 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1031.6 | USD | 20251208 |
| Yixing Wencheng Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.1 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.1 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.1 | USD | 20251208 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 763.1 | USD | 20251208 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.71 | USD | 20251208 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.71 | USD | 20251208 |