| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1180.04 | USD | 20251021 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1204.68 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1204.68 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1204.68 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1211.73 | USD | 20251020 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1056.74 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1310.36 | USD | 20251020 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |