| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2198.02 | USD | 20251020 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2254.38 | USD | 20251020 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1859.86 | USD | 20251020 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2198.02 | USD | 20251020 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2198.76 | USD | 20251018 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2255.14 | USD | 20251017 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1860.49 | USD | 20251017 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2198.76 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2198.76 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2198.17 | USD | 20251016 |