| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.13 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251113 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251113 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.13 | USD | 20251113 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251113 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1100.68 | USD | 20251113 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.13 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251113 |