| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1116.88 | USD | 20251204 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1060.33 | USD | 20251204 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 841.19 | USD | 20251204 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.99 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1116.88 | USD | 20251204 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 876.54 | USD | 20251204 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1244.12 | USD | 20251204 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.99 | USD | 20251204 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1159.29 | USD | 20251204 |