| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1101.89 | USD | 20250620 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.98 | USD | 20250619 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.98 | USD | 20250619 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1101.37 | USD | 20250619 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.56 | USD | 20250618 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.56 | USD | 20250618 |
| Shandong Nonline Technology Co., Ltd. | China national standards | MT | 1532.87 | USD | 20250618 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1100.88 | USD | 20250618 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.76 | USD | 20250617 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 954.76 | USD | 20250617 |