| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 985.51 | USD | 20250908 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1055.91 | USD | 20250908 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 956.88 | USD | 20250907 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 956.88 | USD | 20250907 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 956.88 | USD | 20250906 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 956.88 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.52 | USD | 20250906 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1055.39 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250906 |