| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 559.17 | USD | 20250701 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 565.75 | USD | 20250630 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 558.77 | USD | 20250630 |
| Huainan Guoke Ruida Chemical Product Sales Co., Ltd. | China national standards | MT | 1088.97 | USD | 20250629 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 558.45 | USD | 20250628 |
| China national standards | MT | 100.0 | USD | 20210323 | |
| China national standards | MT | 130.0 | USD | 20210323 | |
| China national standards | MT | 220.0 | USD | 20210323 | |
| China national standards | MT | 770.0 | USD | 20210323 | |
| China national standards | MT | 120.0 | USD | 20210323 |