| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1191.53 | USD | 20250814 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 967.24 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1149.47 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1303.67 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1303.43 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1303.43 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1149.26 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1149.26 | USD | 20250813 |
| China national standards | MT | 1220.0 | USD | 20210323 | |
| China national standards | MT | 1680.0 | USD | 20210323 |