| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 798.33 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 953.75 | USD | 20251209 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1017.34 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 847.78 | USD | 20251209 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 819.52 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 791.26 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 847.78 | USD | 20251209 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 819.52 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 791.26 | USD | 20251209 |