| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 929.43 | USD | 20251126 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1412.51 | USD | 20251126 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 889.88 | USD | 20251126 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.69 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.75 | USD | 20251126 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.69 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 922.37 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.69 | USD | 20251126 |