| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1411.91 | USD | 20251125 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 790.67 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 797.73 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Shandong River Chemical Co., Ltd. | China national standards | MT | 776.55 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |