| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 647.39 | USD | 20250930 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.83 | USD | 20250930 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 886.64 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 900.71 | USD | 20250930 |